NSD 360
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CENTURY
FLIGHT SYSTEMS INC.
P.O. BOX 610 MUNICIPAL AIRPORT MINERAL WELLS TX 76068 PH. (817)325-2517 FX. (817)325-2546
SALES (800)433-5630 TECH SERVICES (817)325-2716 TECH LIBRARIAN (800)633-8530
NAVIGATION SITUATION DISPLAY NSD360, NSD360A & NSD1000
CENTURY FLIGHT SYSTEMS, INC¿
68S304 SERVICE MANUAL REVISION 2 DECEMBER
1996
FLIGHT
PO BOX 610
INC.
SYSTEMS,
MINERAL WELLS, TX 76068
(817)326-2617
TO:
HOLDERS OF SERVICE MANUAL FOR NAVIGATION SITUATION DISPLAY NUMBER 68S304 REVISION 1 DATED JUNE 1, 1992
FROM:
CENTURY FLIGHT SYSTEMS, INC. PUBLICATION DEPARTMENT
REVISION 2 DATED DECEMBER 1996
below: Replace pages as instructed None of the contents of this Manual was changed, different. REMOVE 1.
Cover Sheet for 68S304
2.
1, 1996 Revision 1992
Sheet(white)
3. Table of Contents All of Section III 5. All of Section IV 6. Index
dated June 1,
pages
4.
dated JUNE
4, 5, 6 & 7
just page numbers are -INSERT
1. Cover Sheet for 68S304 dated DECEMBER 1996 2. Revision Sheet (tan) dated December 1996 3. Table of Contents pages 4, 5, 6 & 7 4. New Section III 5. New Section IV 6. No Replacernent
Modified material has been incorporated into this manual in a manner that does not destroy information needed for servicing earlier model equipment. Eliminate the old pages that have beerf modified to avoid confusion at a later date.
We welcome errors, some part number,
this publication. your comments concerning Although every effort has been made to keep it free of When reporting a specific problem, please describe it briefly and include the publication may occur. or drawing number, and the page number. the paragraph
Send your comments to: PUBLICATIONS DEPARTMENT CENTURY FLIGHT SYSTEMS INC PO BOX 610 MINERAL WELLS TX 76068
RECOR3 SERVICE MANUAL 68S302 REV
ISSUE DATE
ORIG
June 01, 1976
1
June 01, 1992
2
December
DATE INSERTED
OF REVISIONS NAVIGATI JN SITUATIC N DISPLAY BY
REV
ISSUE DATE
DATE INSERTED
BY
1996
thl: publication is subject to change. Betore attempting an r maintenance /VOTE: The materialin the eqcipment covered in t >¡s publication, verify t rat VOL have complete and currer,t publications the dat > of the revision.
operat¡cn
by referung
on
to
68S304
OF CONTENTS
TABLE
Page
Section LIST LIST
OF ILLUSTRATIONS OF TABLES
I.
GENERAL
1-1 1-3 1-6 1-8 1-10 1-11 1-12 1-13 1-14 1-15 II.
INFORMATION
Introduction Description. NSD-360 Configuration. Scope. .
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specifications General. Mechanical Electrical Environmental. Abbreviations.
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1-1 1-1 1-1 1-1 1-1 1-2 1-2 1-3 1-3 1-3
THEORY OF OPERATION 2-1 2-2 2-5 2-6
General. Scope. Theory of Operation. NSD P/N 52D137-1332, and 52D189-( NSD P/N 52D137-1020 To-From .
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-1333,
Lighting NSD P/N
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52D136-All
2-1 2-1 2-1
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2-25 2-26 2-29 2-31 III.
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Configurations.
2-1 2-7 2-7 2-7 2-7
MAINTENANCE 3-1 3-3 3-5 3-11 3-13 3-14 3-15 3-15A 3-16 3-17
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3-5
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3-18
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3-1 3-1 3-1 3-2 3-2 3-3 3-4 3-4 3-45
General. Tools Required Precautions. General Maintenance Procedures Removal and Disassembly Cover Removal. Front Removal. Bezel Removal (Air Bottom Plate Gyro). Bottom Removal (Electric). Plate Removal G|S Meter Assembly (81B89) Printed Circuit Board and Removal. (81B90) Miniature Airplane/Hdg Reference Assembly Removal Heading Warning Flag Assembly Removal. Removal Bezel Assembly Removal. Solenoid Assembly Removal. G|S Flag Meter Assembly Removal Bezel Bearing Assembly .
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3-59 3-6 3-6 3-87 3-7
685304 TABLE
continued
OF CONTENTS
Page
Section
3-24
Course and/or Card Shaft Set Assembly Removal Circuit Board (81C81 and Assembly 81C399-1) Removal. Circuit Board Assembly (81C460-1) Removal Circuit Board (Air) Assembly Removal. (81B107) (Electric) Circuit Bezel Assembly (81D715) Removal Tail Removal. Pig Assembly Circuit Board/Brush Assembly Removal. Tensioner Bracket Belt Assembly Removal. and Bearing Element Gyro Assembly (Air) Removal. AssemblyGyro Element (Air) Disassembly. Element Gyro Assembly (Electric) Removal. (Electric) Gyro Element Assembly Disassembly. (Electric) Gimbal Assembly Disassembly. (Electric) Rotor Housing Assembly Disassembly Timing Belt Pulley Assembly Removal. Brush Block Removal Assembly Bearing Support Bracket Assembly Removal. Compass Card Removal. Finished Removal Shaft|Meter Assembly Shaft|Meter Assembly Disassembly Bracket support Assembly Bearing Removal. Brush Assembly Removal synchro Control Transformer Removal Assembly Gear Motor Removal. Assembly Removal. Pulley Assembly Internal Cable Removal. Assembly Cleaning Inspection and Repair. General. Bearings Pivots and Assembly Installation Procedures Cover Installation Front Bezel Installation (Air) Bottom Plate Installation .
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3-7
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3-31C
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3-14] 3-15
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3-18 3-19
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3-19 3-20
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3-41 3-42 3-43 3-44 3-50 3-51
3-54 3-55 3-56 3-59 3-60 3-61
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3-20
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3-21 3-22 3-23 3-23 3-23 3-23
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3-24 3-24
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Page
3-25
2
685304 TABLE Section
OF CONTENTS
continued Page
3-61A
(Electric) Bottom Plate Installation G|S Meter Installation. Assembly Printed Circuit Board Assembly and (81B89) (81B90) Installation Miniature Airplane/Hdg Reference Installation Flag Assembly Heading Warning Assembly Flag Installation Installation. Bezel Assembly Solenoid Installation Assembly Meter G|S Flag Assembly Installation Bezel Assembly Bearing Installation Set Course and/or Card Shaft Installation. Assembly Circuit Board (81C81 Assembly and 81C399-1) Installation Circuit Board (81B107 Assembly or Installation 81D715)) Circuit Board Assembly (81C460) Installation Cable Pig Tail Assembly Installation Circuit Board/Brush Assembly Installation Tensioner Belt Bracket Assembly and Bearing Installation (Air) Gyro Element Assembly Assembly (Electric) Rotor Housing Assembly Assembly. (Electric) Gimbal Assembly Assembly AssemblyElectric Gyro Element Assembly (Air) Gyro Element Assembly Installation (Electric) Gyro Element Assembly Installation Belt Timing Pulley Assembly Installation Assembly-Installation. Brush Block Support Bracket Bearing Assembly Installation Card-Installation Finished Compass Shaft|Meter Assembly. Assembly Assembly-Installation. Shaft|Meter Support Bracket Bearing Assembly Installation Installation. Brush Assembly Transformer Synchro Control Installation --
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3
68S304
TABLE
OF CONTENTS
continued Page 3-58
Section
3-87 3-88 3-89 3-90 3-91 3-93
3-94 3-95 3-95A
Motor Installation Assembly Installation Pulley Assembly Internal Cable Assembly Installation Adjustments. Gear
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3-60
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General. Compass Course
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Card
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Adjustment. Potentiometer Heading .
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Adjustment Circuit Board (Electric) Circuit Board 81D715 Assembly Adjustment. Test Required. Equipment Procedure. Synchro Transformer Control Adjustment Test Equipment Required. Procedure. 81C81
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3-77 3-77 3-77 3-77
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3-95B 3-95C 3-96 3-97 3-98 3-99 3-100
Balancing. General.
3-102
Rotor
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Static Gimbal
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3-104A 3-105 3-106 3-107 3-108
3-108A 3-109 3-110
IV
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NSD-360 5-1
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Housing
Assembly
Balancing
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Rotor
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Housing
Assembly Balancing Drift-Balance (Air) Static (Electric) Static Drift Dynamic Drift Balance. Functional NSD Tests .
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Balance
3-80 3-80 3-81
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4-1
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General.
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(Air)
Test Equipment Required. (Electric)Test Equipment Required Checkout Procedures. Troubleshooting. .
General.
How
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Illustrated .
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Parts
Order
SCHEMATIC General.
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the
Use
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BREAKDOWN
PARTS
Breakdown.
4-9
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Ring
ILLUSTRATED 4-1 4-7
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3-104
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Parts .
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Assemblies
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DIAGRAMS .
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Page
5-1
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4
68S304
OF ILLUSTRATIONS
LIST
Figure 1-1 3-1 3-2 3-3 3-4 3-5
NSD-360 Cover
and NSD-1000 Assembly (Rear
Typical G|S Flag Location Heading G|S Flag Location Printed (81C81
3-6
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Printed
Warning
Meter
3-9 3-10 3-11 3-12 3-13 3-14 3-15 3-16
(NSD -1333,
through Board 52D189-(
Circuit Wiring
Board/Brush .
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3-28 3-29 3-31
Wire .
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3-33
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3-36
No.'s 52D137 and Wiring 52D137 No.'s
Part
-2334)
Board Part
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Board Part
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Wiring
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Wiring
3-19 3-20 3-21 3-22 3-23
Test NSD Diode
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Diagram for Test Fixture Setup
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(NSD Course .
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3-63 3-64
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3-65 3-66 3-75 3-76 3-128 3-129
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3-130
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Schematic. Support Assembly Flux Detector Adjustment. Adjustment System Slaving Ground Compensator Adjustment. Navigation situation Display, NSD-360 and NSD-1000.
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Chassis/Bezel
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52D189-( Resolver .
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3-40 3-41 3-44 3-50 3-56 3-59
52D136
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-2334)
(NSD P/N .
3-39 3-39
Assembly
-1220)
Diagram
Wiring
3-38
(81D715) .
-2331,
through
3-37
Wiring No.'s
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3-18A
4-2 4-3 4-4 4-5 4-6
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.
-1333,
3-3
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Installation
) TB1 .
1-0
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Bar Magnet Installation Element Gyro Wiring Assembly Brush Block Assembly Wiring Course and Head Potentiometers Brush Assembly wiring 52D137 Diagram (NSD P/N Wiring and (NSD P/N 52D137 Wiring Diagram
-All)
4-1
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Flag
Wiring
Board
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Bracket
-1220)
Circuit
.
Wire
-1220)
NSD P/N Terminal
-1020
3-18
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-2331,
through
-1332,
3-17
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(Rear View) Circuit Board.Wiring and 81C460). Circuit Wiring Board
Printed Circuit (81B107-3) (NSD -0010
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Bracket View)
Printed Circuit (81B107-3) (NSD -1020
3-8A
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Meter (Front
(81B107-2)
3-8
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(Typical) View)
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-1332,
3-7
Page
Title
Assembly
Chassis/Center Section Center Section Assembly Chassis Assembly Circuit Board Assembly .
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Assembly .
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(81C81)
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Page
4-3 4-9 4-20 4-24 4-28 4-35
5
68S304
LIST
OF ILLUSTRATIONS
Figure 4-6A
Title Printed
and 4-7 4-8
4-8A 4-9
4-9A
Page
P/N -1333).
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4-10
4-10A 4-10B 4-11 4-12
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(81C460) Assembly (81B107-2) Assembly (81B107-3) Assembly Circuit Board.,Assembly, Electric Inverter (81D715) Gyro Element Assembly Capsule Gyro Assembly, Electric (81D712) Gimbal Assembly, Electric Gyro (81D710) Rotor and Housing (Air). Assembly Rotor Housing Assembly, Electric Gyro (81D709) (81D708) Rotor Electric Assembly, Shaft/Meter Assembly How to Use the Illustrated Parts Breakdown NSD P/N 52D137-1332, Diagram and Schematic NSD P/N 52D137-1020 through Schematic Diagram NSD P/N 52D136-0010 through Schematic Diagram 52D136-1333 Schematic NSD P/N Diagram NSD P/N 52D137-1332,
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4-61 4-62 4-64
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4-67
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-2331,
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Diagram NSD P/N
and
-2335,
Diagram NSD P/N -2334,
5-7
.
5-3
-
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
-1333,
-2334,
5-6
.
5-2
-
5-4
-
.
5-5
.
.
-1220
.
4-56
4-59
.
.-.
5-4
4-53
.
-1220
.
4-47 4-49
.
-
.
5-3
4-38 4-41 4-44 4-45
.
-1333,
-2334
5-2
.
.
Board Board Board
Circuit Circuit Circuit Printed
..
5-1
.
.
.
.
4-9B
(81C399) 52D137-1332
Assembly 52D136-1333 and
Circuit
(NSD 4-6B
continued
.
.
.
.
.
.
.
.
52D189-()
.
.
.
.
-1333,
and .
Schematic
-
52D137-1332, -2335,
-2331,
-2336
.
.
.
-
.'..
.
.
5-6
-2331,
Schematic
-
-2336
5-5
.
Schematic
.
.
.
Diagram
Page
5-7 5-8
6
68S304
LIST
OF TABLES
Table 1-1 3-1 3-2
Title
Page
NSD-360 Configuration Chart. Front Bezel Hardware Attaching From-To NSD 52D137 List Wire (Part No.'s and Wire List NSD 52D189-( ) From-To Checkout Procedures (NSD P/N 52D137-1332, and .
-1333,
-1332,
-2334)
3-2A 3-5
.
.
.
.
3-5A
.
Checkout
52D189-All). 3-6
Checkout
52D137-1020 3-7
.
.
.
3-8
3-8A
.
.
.
.
.
.
.
.
..
.
.
.
.
.
.
.
.
.
.
1-5 3-26
.
.
3-67 3-70
.
.
(NSD
through
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
3-84
Procedures (NSD 52D136-A11). Troubleshooting. (NSD P/N Troubleshooting .
.
.
.
.
.
.
.
3-92
P/N
-1220)
Checkout
.
.
P/N
(NSD
Procedures
.
.
-2331,
.
Procudure .
.
-2331,
.
-1333,
-2334)
.
3-99
P/N
52D189-All)
3-107 3-113 3-121
Page
7
685304
Section
SECTION GENERAL
I
I
INFORMATION
1-1.
INTRODUCTION
1-2.
provides and repair overhaul, maintenance, and an illustrated parts breakdown the for Systems, Inc. Navigation Situation Century Flight NSD-1000. 1-1) (NSD) (Figure and The Display instructions are applicable to all in this manual NSD 52D137-1332, Numbers Part 52D136-0010 52D189-( and through through ) (NSD-1000).
manual instructions
This
-360
-1020
-1333,
-2334,
-2331,
-1220,
-1220,
1-3.
DESCRIPTION
1-4.
NSD-360 HSI instrument is an integrated an combining driven servo'd air gyro and an electrically card heading VOR/localizer with and glideslope information. In the NSD-1000, the air driven rotor is replaced by an electric rotor. Both the NSDs have an optional slaving requires initial feature that heading setting on startSubsequent card, of the heading required up. resetting non-slaved is manually on versions, automatically The
accomplished. 1-5.
NSD-360 NSD-1000 and pictorial displays include slaved (optional) Gyro stabilized a heading information, VOR omni/localizer display and a Glideslope Left-Right provides The presentation. instrument Radio, signals and Heading and Course for Autopilot and error Flight Director operation.
1-6.
NSD-360
1-7.
While
The
the 1-1
their
1-9.
CONFIGURATION
covered in all differ
lists
the
NSDs
this
manual are functionally slightly in configuration. and number describes by part
differences.
SCOPE Five
general
this
comprise sections information,
operation,
section
including is the
adjustments illustrated NSD-360 and
contains 1-10.
NSDs
they
similar, Table
1-8.
NSD-1000
and
Section
III
covers
manual. II
Section
provides maintenance
for and tests the parts breakdown NSD-1000 schematics.
NSD,
and
I
contains
theory
of
instructions Section Section
IV V
SPECIFICATIONS
Page
1-1
68S304
1-11.
I
Section
The
GENERAL. electrical
and
data following environmental
consists
the
of
mechanical, the NSDs
specifications
for
(all). 1-12.
MECHANICAL.
a.
Operating
2.
Pitch
Limits
and
Roll: headings.
on all b.
c.
when
oscillations each-3xis minute.
at
Filter:
(Air
±55
degrees
in 10 minutes for any pitch and yaw roll, with an amplitude degrees about of ±3.0 a frequency of 5 to 7 oscillations per
Maximum
Drift: heading
through
Functional
4.0 degrees subjected to
Driven
safety
Internal
Only)
filter
only.
to
d.
Vacuum:
e.
Indicator: Vertical card Heading with matte azimuth white markings for 30 degrees primary, 10 degrees for 5 degrees tertiary markings background. black
f.
Gyro
Rotor
g.
Size
and
1.
4.
5.
speed:
4.5
rpm
24,000
and
wide,
inches
5.2
Hg.
presentation at increments for secondary on durable
of of and dull
(nominal).
and
52D137-1020 (Lighted): 8-1/4 wide,
3-3/8
inches
long, long,
-1220
inches long.
through
-1220
inches
3-3/8
high, pounds.
4.8
inches
3-3/4
inches
through
52D137-1020, (Unlighted): 9 inches wide,
5.0
and high,
and high,
4-1/4
4-1/4
high,
pounds.
52D136 3-3/8
-(all),
inches
52D136 3-3/8
-(all),
inches
long.
52D137-1020,
-1220 -1120,
Same
52D136-(all),
(Unlighted)
inches
-2334:
8-1/4
inches
3-3/8
-1333:
8-3/16
wide,
pounds. pounds. 4.7 6.
Only)
Weight:
52D137-2331
inches 3.
Driven
52D137-1332
inches 2.
(Air
part (Lighted)
4.1
numbers
(Lighted) (Unlighted)
weight
4.2
weight
4.8
weight pounds,
pounds.
Page
1-2
68S304
Section
):
52D189-(
7.
wide, h.
1-13.
1-14.
FAA Specification
1.
NSD P/N
52D137-(all):
TSO-C6c,
C9c
3.
NSD P/N
52D189-(all):
TSO-C5e, C52a.
C6d,
14/28
Temperature
Operating
Humidity
c.
Operating
Vibration
applicable).
to to
-1000
Range:
Range:
degrees
-30
C
to
+50
5
percent.
100
to
50
amplitude;
Range: feet feet
+40,000 +35,800
to
0
Range: double
Altitude
Operating -1000
and
C9c
C.
b.
d.
C52a.
---
inches maximum acceleration.
1-16.
(as
Vdc
and
ENVIRONMENTAL.
Operating degrees
inches
Approval
ELECTRICAL. Operating voltage:
a.
1-15.
4-1/4 inches high, 5.0 pounds. long,
3-3/8
inches
8-3/16
I
.
.
.
.
.
.
Hz/sec:
1.5
(52D137 [(52D189-(
0.020
g
maximum
& 52D136)
)].
ABBREVIATIONS The
following
this
manual. in
except misinterpretation.
is
a
list
Standard
those
cases
of abbreviations peculiar to abbreviations provided are not where there be some might
ABBREVIATION
DEFINITION
BLK
BLACK or
BLU
BLUE
BR
BRUSH
BRKT
BRACKET
BRN
BROWN
CB/BR
CIRCUIT
CRS
COURSE
BLOCK
BOARD/BRUSH
Page
1-3
Section
68S304
ABBREVIATION
DEFINITION
CT
SYNCHRO CONTROL
I
TRANSFORMER DR
DRIVE
EXC
EXCITATION
GND
GROUND
GRA
GRAY
GRN
GREEN
HDG
HEADING
MOT
MOTOR
MTR
METER
ORN
ORANGE
P/N
PART NUMBER
P/O
PART
RND
ROUND
RTR
ROTOR
SEP
SEPARATE
SOL
SOLENOID
SQ
SQUARE
SR
SLIP
STTR
STATOR
TB
TERMINAL
VAC
VACUUM
VIO
VIOLET
WHT YEL
'
OF
RING
BOARD
WHITE YELLOW
Page
1-4
I
NO.
52D136-0010 52D136-0020 52D136-0110 52D136-0210 52D136-0120 52D136-0220 52D136-1020 52D136-1120 52D136-1220 52D137-1020 52D137-1120 52D137-1220 52D137-1332 52D137-1333 52D137-2331 52D137-2334 52D189-( 52D189-1
PART
)
X X X X X X
X X
X X X X X X X X
BEZEL 012 RND SQ
X X
SQ
LIGHTING
1-1.
X
X
X X
X
X
X
X
0 1 NONE 14V
Table
X
X
X
X
28V
230
X X X X X X
28V
or
14V
NSD-360 Chart
X
X X
X
X
X X X X X X
X
X X X X X X
NONE VOR VOR VOR G|S G|S SEP NAV
123
METERS
Configuration
X X X X X X X X X X X X
X
X
4"
01234 STD ARC
COLOR ARC 3"
X X
X
MT 3"
X
4"
MT
X X X X X X X X X
X X X X X X X X X
S US
O
Section
68S304
SECTION THEORY 2-1.
GENERAL
2-2.
SCOPE. This NSD-360 applies here
II
II
OF OPERATION
section contains the theory of operation of NSD-1000. and The information presented and to the NSD instrument only no attempt the NSD with any overall autopilot is made to interface or NSDFor interface information system. of NSD-360 refer to the pertinent following Century Flight 1000,
the
Systems,
2-3.
manual:
Inc. and
Service
III
Century
II
Century
IV/Flight
Century
21
Service
Manual
Century
31
System
Overhaul
Century
41
Service
Manual
Century Computer
2000
Director
Controller Maintenance
68S54
Manual Service
Manual
68SS9
68S1025 Manual
68S1026 68S1027
Flight Manual
68S1034
previously this manual covers maintenance stated, and NSDs. The primary of operation overhaul of all theory 52D137section presented in this will cover NSD P/N 52D189-( and instruments. 1332, ) paragraphs will provide difference Subsequent theory for configurations the other of NSDs. As
-2334
-1333,
2-4.
To
-2331,
the
follow
theory of to Figures
refer
clearly,
operation
presented
5-1
more 5-6,
through
as
applicable. 2-5.
THEORY
2-6.
NSD P/N 52D137-1332, subsequent This, and operation for the 52D189-( and 2-25 for theory
OF OPERATION
-2334
through differences
paragraph 2-7.
-1220.
for 2-14A
52D189-(
).
in regulator
28-volt
A+,
through In
14-volt
circuit connector systems,
-1333,
-2331,
the
paragraphs,
details 52D137-1332,
NSD P/N ) configurations. differences for paragraph See 52D136-All NSD P/N for differences theory
theory
-1333,
Refer NSD P/N
).
52D189-(
and
-2334
of
-2331,
to
paragraph
52D137-1020 for theory configurations. See NSD-1000, for P/N 2-31
is
applied to the voltage 81C460-1 Board 81C81 or CD-132 or CD-106 pins 11 and 12 only. CDA+ is applied through connector
systems,
on
Circuit
Page
2-1
Section
68S304
II
CD-106 pins and The 10, 12. voltage 11, circuit regulator consists of NPN transistor Q1, bias resistors upon the input R1 and R2 (depending A+) and 13 diode CR1. volt zener voltage drop across R1 (or The CR1 by reducing the current through CR1. R2) protects 132
2-8.
The
or
A+
(regulated)
output due emitter
Ql
of
to
a
0.7
approximately
voltage regulated
12.3 between drop A+ is applied the collector limits R19
Vdc
the
to The Support the and of LED CR-5 Q-7. phototransistor Resistor the PNP CR-5. current through of Q-7 is proportional The output Q-7. of to the amount light by the base of With seen Q-7 one-half exposed of the light to output of the base Q-7 CR-5 output the emitter of the voltage of is approximately the same the output voltage of the as reference voltage at Vdc). A mechanical Q4 and Q5 (7.6 change in either rotate heading direction will the Diode Q-7 will such base of Support Assembly that the be CR-5 to more or less light from depending exposed upon CR-5 of to the eccentric the position in relation vane Q-7 to the With the base attached Gyro Gimbal. of one-half CR-5 to more than the light from exposed the of Q-7 will go high output of Q-7, which emitter and the to the inverting the voltage input pin 3 of is applied will (+) voltage follower IC1A, be a plus in excess of Q-7 the base voltage (7.6 With of the reference Vdc). CR-5 one-half the from exposed to less than light the Q-7 Q-7 of will go low and the output of emitter will be (-) a minus voltage which will be less than the base
and Diode
reference 2-9.
Page
of Q1. Assembly
is volt
voltage.
Q-7 is applied from to non-inverting 3. Assume that signal to IC1A is the input being a voltage passes the follower, input the output, the same pin at voltage and 1, The low output of IC1A is applied to input, motor pin 6, of driver IC1B inverting through resistor R4. IC1B inverts and amplifies the input applies the now high signal to the base signal and of the servo amplifier transistors Q2 and Q3. With the Q2 and Q3 high, base of the output at the junction of of Q2 and the emitters Q3 goes high and is fed through resistor Motor to common through the Gear R12. This develops a positive voltage the junction of at R12 and is applied R14 which through R14 to the inverting input, of the emitter The output junction of Q2 pin 2 of IC2A. fed to the inverting input of and Q3 is also back IC1B the circuit through filter network of consisting and capacitors and resistor R6 and C1 C2. R7, The of this purpose circuit to keep the is signal from and to prevent gain from oscillating the signal becoming too high. output The IC1A, pin IC1A low, to signal polarity.
2-2
signal
68S304
2-10.
Section
II
at the junction output of Q2 and Q3 is also The positive variable through R10, and applied resistor R11, R13 to With the Gear Motor stalled (not running) and ground. at the input signal the to cancel R11 set inverting 2, the output at input pin 1 of IC2A at pin will be 0 the Gear Motor starts the positive volts. Once to run, through R10k and R11 will cause the current signal in at the junction to decrease and the voltage the circuit as well. This action of R123 and R14 to decrease causes non-inverting between and an imbalance the inverting input to be a lower inputs the inverting to IC2A causing
relation to the non-inverting input non-inverting the input With more positive of than input, the output IC2A now the inverting is is applied as feedback through positive and R5 to the input of IC1B where it cancels the inverting negative at pin 6. input inverting voltage
positive voltage.
2-11.
in
drop across resistors and The voltage R16 R17 in the oneReference circuit provides approximately Azimuth non-inverting A+ at the half input, pin 5, of IC2B. The which is of the same output of IC2B, polarity and is applied across resistor level, R18 voltage to the Q4 and Q5. With Q4 and Q5 turned base of transistors
voltage which is on, the output at the emitters, still one-half is fed back to the inverting input, A+, pin 6, the feedback from the outside of Q4 and of IC2B. Taking to build Q5 are used up the current capacity of the signal. reference The output of Q5 is Q4 and also to R12 and the non-inverting input, applied back pin 5, the Azimuth Reference signal. With of IC1B as the reference signal thus applied the to IC1B, output of always be above Vdc IC1B will or below 7.6 driving the Gear Motor in one direction or other. With the input non-inverting and IC1B inverting voltages at equal of IC1B is 0 volts, the output to the (null) in relation Azimuth and the Gear Motor Reference, stops. 2-12.
signal the sequence to IC1A high, of same described above with the as of reversed polarities. When the output of the output of IC1B will be low high, and the junction of Q2 and Q3 will be out of the emitter Gear Motor the opposite driving the in direction. The output Rate circuit at of the Azimuth pin 1 of IC2A will be negative with the feedback through the positive input R5 canceling to IC1B. The Azimuth functions described and with Rate circuit as previously the inputs to IC1B equal (null) the Gear Motor is stopped. With
the
events exception IC1A is voltage negative,
2-13.
(Air
voltage Board
input
are
Gyros
the
only)
When
also applied and dropped 81B107 is
A+
to
is
the across
first
emitter R20
to the NSD, Q6 on Circuit the base of Q6.
applied of
to
Page
2-3
Section
68S304
II
A+ through C4 turns energizes the Heading on Q6 which Solenoid the flag to retract Flag causing from Warning As soon as C4 charges (less than oneview momentarily. deQ6 is turned solenoid second), off, the half and the drops in Diode energizes flag back view. CR2 is to prevent C4 from discharging back in the circuit into
the 2-14.
voltage
Gyros (Air Only) With air applied closes current switch S1 causing CR4. The voltage base on the 8.0 approximately Vdc Q6 causing
turned
Page
current
on,
Warning If the
2-14A
regulator.
Flag
input
turn
off,
will
drop
through and
Solenoid
A+
the into
(NSD-1000 Only) When A+ Vdc). to is applied
decreases solenoid
the to
will
to to
flow
the
Gyro,
vacuum
through
R2 and of Q6 will drop to to turn on. With Q6 Q6 energizes the Heading retracts flag from view. less than 9.5 Vdc, Q6 will de-energize, and the flag
view. (52D189-(
52D189-1, or 14 NSD-1000, voltage Inverter Speed and Sensor board. printed circuit Integrated circuit is an (U2) converts oscillator that 28 or 14 Vdc to 26 or 13 Vac, approximately 400 applied HZ. The output of U2 is the transistors bases of driver as Q3, 4, 5 and 6 connected output. The power an 26 or 13 Vac out of the "H" transistors is then routed to the two phase gyro motor. is routed direct to one winding of the Phase I gyro phase C8 as phase motor and also through shift capacitor winding 2 to second of the gyro motor. The 26 or 13 Vac is applied signal two phase to the stator windings. The hysteresis rotor and armature are mounted around ring the stator on precision bearings to achieve the desired movement when rotor power is applied to the stator. impellers Small on each end generate air flow of rotor required for self the erection. is applied, When power starts to rotate. amplitude voltage rotor The of the across C8 is compared low the 1. At RPM, to phase amplitude phase of CS voltage As the is less than 1. increases. As the amplitude RPM increases of C8 voltage the rotor approaches speed, two amplitudes the "sync" are applied equilibrium. approach voltages to These monitor the rotor RPM. pins and 6 of 5 U1 to Potentiometer where on pin the point the output R9 sets change the rotor is 7 of U1 will that states, indicating performance applied signal is up to minimum RPM. This A+ is to pin 2 of Ul. The ratio also of incoming back to pin 2 of U1. reference pin 16 applied voltage from A is applied and R13 to U1. Resistor of U2 pin 3 of 12 the A+ voltage the divide down and R13 is set to compare A+ A+ minimum into the reference is at pin When the 3. the minimum voltage, 7, above the voltage shift of pin RPM increases, causes U1 as the the voltage 1 of at pin change states is U1 to from high to low. This low
2-4
is first applied the of input
),
28
Vdc,
to
the
Section
68S304
II
R8 to the through base applied of Q1 and Q1 is turned on When Q1 is turned hard. on, a voltage is applied out to flag solenoid the heading the heading causing flag to be of view. Anytime the A+ drops retracted out below the voltage minimum or rotor RPM drops below minimum RPM, will the heading back flag drop into view.
2-15.
operation same as
of The theory the electrically signals The input CD-132 connector Brush and 16
the
of
the
to
Omni
is
Resolver
RS-931-1.
type
Kearfoot Resolver
the Omni rotor are through CD-106 (as applicable), pins 15 and Block brushes 3 and 7, Assembly (See Note respectively. The output below.) signals stator from the Omni Resolver to the Omni converter is Brush and pins 23 through the Slip Ring Assembly through 26 of CD-132 or CD-106. or
NOTE On
other
all
is
rotor number 2-16.
NSD
through
1 and
configurations, Brush
input
Block
Assembly
to
the
brushes
5 respectively.
information is compared to Gyro heading heading at the rotor of the Synchro Control Transformer (CT). As heading changes occur, the CT with card and rotor rotates the heading changes its When the angular to the CT stator. angular relationship between and that the magnetic heading of relationship is the same a null exists at the CT the CT rotor/stator When the the rotor. angular relationship of CT rotor/stator changes, the output of the CT represents an signal after processing, to the error which, is applied Coil. The Gyro Slaving input signals to the CT rotor CD-111 the Slaving Amplifier connector from is through TB1-4 H and The CT pins A and and 5 (if installed). TB1to the Slaving signals Amplifier are through output and CD-111 B, J, and C, respectively. pins 1 through
Magnetic
information
-3
2-17.
The error connector
the
is
applied pins F
to and error).
the D
direction
of
signal,
applied
deflects A negative
meter to the positive error signal deflect will position indication.
negative 2-18.
signal CD-111
heading
to
the
the
Slaving
Coil Slaving through (depending on the The positive error Meter through R22,
position
the
indication. to the
meter
is applied to the voltage continuous potentiometers through CD-132 or CD-106 (as applicable), pins 19 and connector linked to 20. two potentiometers are The mechanically and the Course Card Set shafts, and when rotated, course and heading provide information in the form of a changing to the Computer/Amplifier linearly voltage Heading Heading
and Course Course and
Excitation
Page
2-5
68S304
through 22 2-19.
II
Section
and
CD-132
connector
CD-106
or
(as
applicable),
pins
21.
signals to input from a positive voltage applied connector (as applicable), pin 27, glideslope pointer is moved in an up direction. positive voltage on pin 28 moves the pointer in a scale direction. Full deflection direction in either accomplished at 150 ±15 microamperes. The
Glideslope Glideslope
the to the
responds
Meter Receiver. CD-132 or
With CD-106
A down
is
NOTE
should 100
out 2-21.
NSD configurations, the flag in view up to a current flow of -O +20, microamperes and move completely of view at 250 +0, microamperes.
all
On
other remain
-15
signal to the NAV Flag input Meter is supplied to CD-132 the Omni Converter NSD from through connector (as applicable) pins 31 and 32 and Brush or CD-106 Block brushes number 6 and 4 respectively. Assembly With a positive voltage on pin 31 the flag will remain in view the current flow reaches 180 +10, until microamperes, -O microamperes. retracted at 245 +20, and be completely The
the
-0
2-22.
the input signals for CD-132 connector or CD-106 (as pins 34 applicable), and 33 and Brush Block Assembly numbers 2 and 1, respectively. brushes With a positive applied to pin voltage 33 the indicator will deflect scale TO 200 ±40 full at microamperes. A positive voltage at pin 34 will deflect the indicator full scale 2-26 200 ±40 microamperes. FROM at (See paragraph for other NSD configurations.) The
the
2-23.
signals
Input
to
also
Converter Omni TO-FROM Meter
the
from
Left-Right
supplies
through
the Meter
Omni
on
CD-106 brushes With
Converter 17
pins
are and
18
also applied of CD-132 or
and through (as applicable), Brush Block Assembly Note number (See 5 and 8, respectively. below.) Left-Right positive voltage at the a 17 pin travels full 150 indicator scale left at ±15 18 will A positive cause microamperes. voltage at pin +15 150 the indicator to travel full right at scale microamperes. NOTE On
all
Left-Right Assembly 2-24.
Page
input NSD configurations, Meter Brush is through brushes number 3 and 6 respectively.
other
Internal lighting Vdc applied at
2-6
for
connector
the
NSD CD-132,
is
provided pins 2,
the
to
Block
by 3,
and
or
14 4.
28 NSD
685304
P/N NSD
52D137-1332, 52D137-2331 P/N
NSD
operation configuration. TO-FROM
this
input
the
Omni
34,
through
Circuit brushes energized, described 2-28.
When
2-29.
LIGHTING.
the
are
through the
Meter
in
Circuit
for above
the
.from
are
Meter
81B107, and through Brush number 4 and 2, respectively. TO-FROM functions the Meter
paragraph
following
supplied
CD-106, connector closed contacts of
normally
of is
-1220
difference
pins relay
Block With
Board
in
theory
The
TO-FROM differs as follows.
TO-FROM
to the through
signals Converter
by and
33
K1
on
Assembly
deas
K1 same
the
2-22.
ground, supplied by the Omni is a Converter, CD-106 to connector pin 35, K1 is energized. At applied is supplied, signals the same time the ground input from 7 and pins 9 to are applied the Omni Converter to CD-106 the localizer activate circuit. With a positive voltage 8 the Localizer indicator applied to pin Flag will +40 full scale deflect TO at 200 microamperes. A the voltage at 7 will deflect positive pin indicator scale FROM at 200 ±40 microamperes. full The
14
The
NAV
Flag
or
the
provided by which Wedge is system. electrical is
2-30.
2-22)
six In
-1220.
52D137-1020 above with a slight 5-2. Figure The
(paragraph
The
lamps
through
METER CIRCUIT. configuration NSD
description 2-27.
the
lamps and all three connected in
) use four.
use
-2334
P/N NSD described due to Refer to
for as
basically modification 2-26.
and NSDs
52D137-1020
P/N
52D189-(
and
-1333
of
configurations parallel. 2-25.
II
Section
28 Vdc addition
connected circuit
is
lighting
of an externally not
used
system,
when
Internal
to in
used,
Lighting
the
aircraft
this
NSD
P/N
configuration. NOTE Some
NSD
Circuit
separate affect not components 2-31.
NSD
P/N
operation as that following
configurations may contain and Relay K1 mounted as components. This installation does of the operation of these theory as described in this section.
P/N Board
52D137 81B107
52D136-ALL CONFIGURATIONS. The 52D136 for NSD P/N configurations 2-6 described in paragraph above 5-3. Refer differences. to Figure
is
theory the
of same
with
the
Page
2-7
Section
68S304 2-32.
Paragraph
2-33.
The
by
14
the
connected
2-21
is
not
applicable
to
this
NSD.
system, when or 28 Vdc lighting used, is an Internal of addition Lighting Wedge to the aircraft electrical externally
provided which
system.
NOTE Some NSD P/N 52D136 configurations may contain Circuit Board and 81B107 K1 mounted as Relay separate components. This installation does the not affect of operation of these theory components section. as described in this
Page
2-8
II
is
III
Section
68S304
SECTION
III
MAINTENANCE 3-1.
GENERAL
3-2.
section contains This maintenance instructions and for procedures repair overhaul of and all NSDs. paragraphs instructions Separate provide for removal, inspection, cleaning, disassembly, assembly, adjustment, of the and test NSD. installation, For parts ordering see Section information, IV, the Parts Illustrated List, to Order "How Parts or For Assemblies." part location information, see the Parts appropriate Illustration Breakdown in Section IV.
3-3.
TOOLS
3-4.
Maintenance,
REQUIRED
tools
of the repair and overhaul accomplished standard using hand repair tools. The following specifically for required overhaul
be
normally instrument are
NSD
can
approved list of
of
the
NSD.
a. b. c. d.
e. f. g. h.
i.
j. k. 1.
Eye Loupe Tweezers of Standard Screwdrivers Set of Jewelers Screwdrivers Set Wrenches of Allen Set Set of Bristol Spline Wrenches Assorted Bearing Pullers Iron Soldering Open-end Set of Small Wrenches Needle-Nose Pliers Small
m.
Cutters Wire Cutters Flush De-soldering
n.
Picks,
TEST
a. b. c.
Suitable Century Scorsby
stop
adjustments.
work NSD
area Test
free Set
from
dust.
(66D341)
providing Stand capable of roll, yaw an amplitude oscillations with of 7.5° about of each axis at 5 to 7 a frequency cycles per minute. Instrument vibrator to 0.005 with inch a 0.002 amplitude double at of a frequency 5 to 7 cycles Test
and
-
per e. f. g. h.
meter
for
EÇUIPMENT
pitch,
d.
Tool
non-conducting
minute.
Digital Oscilloscope
Multimeter
Watch Stop Weights 0.5
gram
and
1 gram
Page
3-1
68S304
Section
i.
Strobotac
j.
Fixture during
3-5.
GENERAL
3-6.
The
from 3-7.
MAINTENANCE
is
NSD adversely
Careless
assembly
PRECAUTIONS
a minor
of
gimbal
instrument
which by careless handling. The be handled with the same care increase handling alone can
affected
one
the
holding
precision
a
should
repaired unit.
of
capable balancing.
III
to
nature
one
of
a major
can be NSD to be as a new
the
repair
nature.
NSD components Cleanliness of the and its before, repair and after cannot be overstressed. during The components should its be covered, capped, NSD and or at times. as all Lint necessary, and other plugged, meter matter may severely damage foreign movements, potentiometers, slip rings, resolvers and gyros, These items should handled bearings. be with nylon room environment. gloves in a clean NOTE
Meter
movements
which particles.
should
permanent
contain
protected
be
from
magnets metallic
3-8.
assemblies which NSD contains many distinct may be each disassembled. As assembly is separately the location component of each disassembled, should be same it can be replaced in the noted so that position. particularly bearings This true and is of pivots. used the same bearings may be in several Although provide they are designed to different locations, to amounts radial the of play according use and location in the unit.
3-9.
When
The
avoid All
handling soiling bearings
to avoid passivated or marring. grade such 3-10.
NSD necessary
The
the
Compass
or
otherwise
should be taken care to the dial damaging markings. and pivots should with be handled tweezers contamination. oxided, and Iridited, against parts protected must be scratching must Solvents used for cleaning be high as Chlorothene-NU (Dow Chemical Co.).
should
to
never accomplish
be
Card,
disassembled
the
beyond
the
point
repair.
3-11.
REMOVAL AND DISASSEMBLY
3-12.
The provide paragraphs following NSD for the disassembly instructions illustrations The view components. exploded considerable IV of manual will offer this
PROCEDURES
removal and assemblies and in Section assistance to
Page
3-2
68S304
the the 3-13.
III
Section
technician
instrument
COVER-REMOVAL. the following a.
in
repairing
or
overhauling
NSD.
is
Cover
removed
Figure
(See
by
performing
3-1.)
two connector
retain
and
Remove
NSD
The
procedure.
Latches
Spring
(1).
CAUTION
to
removal
b.
Remove
tape
c.
Remove
of from
two
prevent and
during
Cover.
around
screws body.
BEZEL-REMOVAL. with accordance the
to
be exercised meter shaft
Glideslope
instrument 3-14.
should
care
Extreme
damage after
and
Cover
the
Remove
FRONT
following
slide
and
(2)
Bezel
Assembly.
in
Bezel
Front
procedure.
from
Cover
(See
Figure
4-1.)
a.
setscrew
Loosen Set
securing knob.
ELECTRIC
3-1.
Cover
(Rear Loosen Course
setscrew Set
Set
Knob
(3)
to
Card
AIR
Figure
b.
Card
remove
and
Shaft
Shaft
Assembly
View)
Course securing remove knob.
Set
Knob
(4)
to
and
Page
3-3
Section
68S304
III
NOTE
NSD is being all For If
c.
Remove
d.
Remove Assembly
52D137-2331
perform
removed, other
52D137-2334
or
NSD units
(paragraph
Cover
six
hex (5)
Bezel
below.
3-13).
cap
to
Front c and d step e.
steps to skip
screws securing and Assembly
Bezel
Front
Bezel
remove
Front
Bezel.
e.
f.
four
Remove to (5) gasket(s)
screws Front securing remove and Assembly and seal washers (5c) (6)
two
remove
If installed, Mask Warning
to
(5d)
Bezel
(if
screws Assembly
Bezel
Assembly and
Bezel
Front
Bezel
used). securing and
G|S
remove
mask. NOTE
Wedge
internal may be
lighting, removed
it
off
the
Course
has
NSD If Lighting sliding shafts.
at
the this
and
time
by
set
Card
connection
(External
Internal
must
be
disconnected.) 3-15.
BOTTOM Plate,
a.
Remove
b.
Remove covering
c.
d.
3-15A.
PLATE-REMOVAL (Air proceed as follows:
(paragraph
Cover
cord
lacing
the
on the
bottom
Remove Bottom
Plate
two
printed of screws (8,
the
PLATE-REMOVAL
proceed
a.
Remove
b.
Remove
as
Cover
lacing
remove
the
Bottom
3-13).
and circuit NSD.
pressure
the
circuit
To
4-2)
(10,
board
Plate the Bottom Block Mounting the Bottom Plate.
(Electric).
tape
sensitive Figure
board
securing 4-1). Figure
four Remove screws securing Bezel and Center Assembly 4-3) Figure and remove (7,
BOTTOM Plate,
To
Gyro).
remove
the
to
the
to
the
Assembly
Bottom
follows:
(paragraph cord
the printed covering of 2) on the bottom
3-13).
and pressure board circuit the NSD.
sensitive (10B, Figure
tape
Page
3-4
4-
68S304
c.
four
Remove
the Bottom Plate Block Mounting the Bottom Plate.
screws securing Center and and remove
Bezel Assembly 4-3), Figure (7,
d. 3-16.
III
Section
two screws
Remove bottom
plate
METER ASSEMBLY-REMOVAL. proceed as follows: Assembly, Remove
Cover
b.
Unsolder Figure
4-2).
(paragraph
lead
from
circuit
to
board
the
remove
To
G|S
a.
the
securing 4-1). Figure
(8,
to
the
Assembly
the
Meter
G|S
3-13).
terminal
solder
on
Meter
G|S
(1,
CAUTION
After extreme Meter arm. c.
3-17.
two
Remove extend side of Assembly
PRINTED REMOVAL.
been performed, use the G/s and handling damage to the meter
step c below has care in removing to prevent Assembly
two to
screws and assembly enough meter assembly. from chassis.
CIRCUIT
BOARD
(if
spacers unsolder
on
remove
Carefully
G/S
and
(81B89
ASSEMBLY
used)
lead
and
rear Meter
81B90)
-
and
Circuit and 81B190 Printed Boards are only 52D137-2331 52D137-1333, 52D137-1332, on NSD P/N 52D137-2334. procedures are as follows: Removal
a.
Remove
b.
green, Unsolder Meter bracket Flag
The
used
c.
81B189
Front
Remove and
4-2)
(paragraph
Bezel
yellow,
two screws, two spacers
(6a
4,
Printed
(if
3-14).
orange and 4-2). Figure Circuit
used)
from
leads
from
G|S
Figure Assembly.
Board Bezel
(2,
NOTE To 3-18.
replace
lamps,
see
paragraph
3-63.
REFERENCE ASSEMBLY AIRPLANE/HDG REMOVAL. MINIATURE Reference Miniature Airplane/Hdg is The Assembly removed in accordance with the following procedure: -
a.
Remove
installed)
Front
Bezel
(paragraph
and
Internal 3-14).
Lighting
Wedge
Page
(if
3-5
68S304
Section
b.
Board
rotate c.
screws
away
three
screws
Bezel
the
securing Assembly
Reference Airplane/Hdg Bezel Assembly and
Printed securing Assembly and
to
4-2) Figure from Bezel.
(2,
board
Remove
two
remove
necessary,
If Circuit
Miniature
Figure Miniature (3,
remove
III
to
4-2)
Airplane
Assembly. 3-19.
FLAG ASSEMBLY REMOVAL. Heading Warning Flag
WARNING
HEADING
removal
of
a.
Remove
Front
3-20.
ASSEMBLY
securing
with
a.
Front
Remove
installed, b.
Remove
c.
Unsolder
Flag
the Remove procedure: Internal
and
Bezel
(paragraph
leads
if
Flag (4b, and remove
Bezel
Assembly
in
Wedge,
if
Lighting
3-14).
(paragraph
Meter
procedure follows: Wedge,
Warning 4-2)
Figure
(4a,
the
NSD Cover
as
Lighting
Heading
clamp
REMOVAL. following
-
accordance
Internal
is
3-14).
(paragraph
setscrew Loosen 4-2) to Figure and clamp. Flag
BEZEL
and
Bezel
installed, b.
The
-
the
for
from
3-13).
front
and
Solenoid
side
of
G/s
Bracket. CAUTION
possible prevent To support Meter, remainder of Bezel d.
3-21.
a.
the
REMOVAL. following
Bezel
and
ASSEMBLY
Remove
installed)
-
perform Front
(paragraph
b.
Remove
NSD Cover
c.
Remove
Heading
the
G|S
meter assembly procedure. removal
screws Remove six and Bezel (6, Assembly securing Bezel Assembly. and remove
SOLENOID Assembly,
to
damage
the
lockwashers Figure
To
Flag during
(if
remove
used)
to
4-2)
the
chassis
Solenoid
procedure:
Internal
Lighting
Wedge
(if
3-14).
(paragraph Warning
3-13).
Flag
Assembly
(paragraph
3-
19).
d.
Unsolder
leads
from
Solenoid.
Page
3-6
Section
68S304
e.
3-22.
Remove Figure Assembly.
two
screws
to
4-2)
METER
Bezel
G/S Flag
FLAG
a.
Remove
b.
Unsolder G/S Flag Meter Bracket. Flag
Meter
Bezel
REMOVAL. as follows:
-
proceed
Assembly
Assembly
Solenoid securing and Assembly
ASSEMBLY
Meter
remove
(6b,
Solenoid
the
G|S
from
G|S
remove
To
(paragraph
Assembly
III
3-20).
resistor
and
lead
CAUTION
prevent possible support the meter procedure. c.
Remove 4,
(6a
Block)
d. 3-23.
Remove bracket
two
two and
screws carefully
Remove
Front
b.
c.
Remove
Bezel
COURSE
Assemblies Assembly, Remove a.
c.
Remove Remove
pulling Mounting
Remove
(or
Bracket
Mounting
meter
remove the procedure:
Bezel
and
REMOVAL. To the following
and
to
Flag
meter
remove
Meter flag.
Lighting
Internal
if
Wedge,
3-14).
(paragraph
CARD
SET
3-20).
Assembly
SHAFT of the
removal identical. proceed as follows: Front
Bezel
Bearings
Bezel
Assembly
ASSEMBLY Course and
(6d,
(paragraph
Card
Internal
Set
either
Lighting
Wedge,
The Shaft Shaft
if
3-14).
(paragraph
3-20).
shaft or assembly (7 forward disengage to Block Bearing. Assembly
Cover
REMOVAL.
-
remove
To
and
(paragraph
CIRCUIT BOARD ASSEMBLY the Circuit remove To follows:
a.
G/S
Bezel
for are
installed b.
Meter
Flag Assembly
4-2).
AND/OR
procedures
Meter,
removal
G|S
securing
Assembly
remove
Flag
the
4-2).
(paragraph
Carefully
Figure
Bezel
G|S
during
securing to Bezel
-
installed
3-25.
4-2) Figure
BEARING BEZEL ASSEMBLY Bearings, perform Assembly
a.
3-24.
assembly
screws
Figure (6a 1,
to
damage
To
and
(81C81
Board
8,
Figure
shaft
81C399-1)
Assembly,
from
-
4-2) by Center
REMOVAL. as
proceed
3-13).
Page
3-7
b.
c.
screws three Remove 4-2) to Figure (9,
d.
all
Unsolder
remove
a.
b.
BOARD
Board
Board
Circuit
in
Circuit
Assembly
and
Remove
follows:
screws Circuit Board Assembly (9, chassis/center section assembly. has a spacer under the PCB. Do not into center section.
to
the
gyro until the is over
(*)
use
for
(81C460-1)-REMOVAL.
ASSEMBLY as Assembly
three Remove 4-2) Figure screw The back allow to drop Turn
to
Assembly Assembly.
Section
mica washer procedure.
leads
Board
Circuit
board.
CIRCUIT Circuit
securing Chassis/Center
retain and installation
Remove Board
3-25A.
III
Section
68S304
hole
power
in the transistor
gyro
gear
slaving connected
to
the
PCB. Remove compression
screw washer
d.
Lift
out.
e.
Remove
f.
Unsolder
c.
3-26.
(AIR)
Remove
PCB
Remove
b.
Remove covering
d.
Remove Plate
eight
3-26A.
two (8,
(paragraph
Remove
b.
Remove
covering Remove Figure
to
as
(81B107)
REMOVAL.
-
follows:
sensitive Figure Board
Circuit
Board
Circuit
tape 4-2).
to
Bottom
as
and
circuit securing
and
follows: 3-15A).
(paragraph
cord
Assembly
(81D715)-REMOVAL.
ASSEMBLY
Assembly
Plate
screws
save.
3-13).
BOARD
lacing printed
two
and
PCB.
securing
leads
Bottom
transistor
Remove save.
and
4-1).
Board
Circuit
transistor. of transistor
cord and pressure Circuit Board (10,
screws Figure
all board.
top
ASSEMBLY
Assembly
CIRCUIT
a.
c.
Board
Printed
(ELECTRIC)
from
BOARD
lacing
Unsolder
Remove
wires
Cover
remove
under
washer
CIRCUIT Circuit
a.
c.
mica
holding from
pressure board (10B, PCB
to
sensitive Figure bottom
tape 4-2).
plate
(8,
4-1).
Page
3-8
Section
68S304
d.
to
leads
all
Unsolder
remove
and
assembly
PCB
III
board. 3-27.
To ASSEMBLY REMOVAL. Assembly, proceed as follows:
CABLE
Tail
TAIL Cable
a.
Remove
b.
Unsolder TB1, 81B107 Figure
PIG
c.
Board/Brush
Pig Pig
3-29.
b.
Remove Assembly
two (12,
Figure
BELT TENSIONER the Belt Remove
ASSEMBLY
to
b.
Remove
screw and Assembly assembly.
remove
Gyro
a. b.
screw
Remove bracket
and
GYRO Element
Remove
Board/Brush Mounting Block
remove
BEARING
Assembly
lockwasher securing 4-2) Figure (13,
securing
Circuit
board. REMOVAL.
-
as
follows:
3-13).
bearing bearing.
(13a,
as
(paragraph
Belt
to
Tensioner Chassis and
To
to
4-2)
Figure
REMOVAL.
-
remove
the
follows:
3-13).
Gyro Vacuum 3-1). (3, Figure
Unsolder
terminal
and
AND
Bracket
ELEMENT ASSEMBLY proceed Assembly Cover
Circuit Brush
to
ASSEMBLY
remove
.The
and
follows:
board
(paragraph
Cover
4-2)
Figure
REMOVAL.
as
securing 4-2)
Tensioner
Remove
(AIR)
Board
3-13).
circuit
BRACKET
a.
c.
to
(lla,
-
removed
is
screws Figure 4-2).
leads
Unsolder
Clamp Assembly.
Cable Cable
(paragraph
Cover
Bracket
3-30.
Tail Tail
BOARD/BRUSH Assembly
Remove
c.
4-2) leads to Circuit Board 81D715 (10B,
Figure
leads or
4-2)
Figure
Pig
3-15).
(11,
and
the
remove
4-2).
a.
(14,
Cable
installed, (10,
Remove
CIRCUIT
Tail
Pig
if
(paragraph
Plate
Bottom
remove 3-28.
-
lead
Switch
from
solder
CAUTION
the
Handle
care c.
Remove (14,
to
avoid
two Figure
Board/Brush
Circuit
damage screws 4-2)
to
the
securing
to
Assembly brushes. Brush
Mounting
with
Blocks
Chassis.
Page
3-9
section
688304
d.
lacing
Remove covering
cord and pressure Board (81B107) (10,
Circuit
two
screws
securing
e.
Remove Plate.
f.
Unsolder
g.
lockwasher Remove screw, 4-2) securing Figure Pig Assembly.
h.
leads
Gyro
Remove
Belt
Bottom
board. cable
and
clamp
to
Cable
Tail
Bracket
Tensioner
4-2).
to
Board
circuit
from
tape
sensitive Figure
Circuit
III
(lla, Element
Gyro
(paragraph
3-29).
CAUTION avoid circuit
to damage board wiring,
rotated
out
To
i. 3-31.
of
make
way during
remaining remove
Remove carefully
81B107 Board sure that board
Circuit
is
removal.
Gyro
screw
and
securing
to
Gyro
chassis
and
Gyro.
GYRO ELEMENT ASSEMBLY DISASSEMBLY. (AIR) the Gyro Element to disassemble refer Assembly, 4-9 as follows: and proceed
To
-
a.
three
Remove (1)
to
screws Diode securing and remove support.
pulley
b.
Unsolder
and
remove
transistor
c.
Unsolder
and
remove
diode
d.
Remove (2)
e.
four Bottom
to
Hold
screws
Assembly
Remove
g.
Remove four Top Housing Remove
and
retain
i.
Remove
Top
Pivot
j.
Remove
and
discard
Unsolder
wires
Gyro
from
Housing
Assembly
(la).
one
two
top
and
hand
Gaskets
assembly. remove
Vane
and
(2b).
securing
screws Assembly
h.
k.
Assembly
(2a).
retain
and
f.
in
Ring
Gimbal
Screw
Support
(lb).
Top securing and remove
Housing
Figure
shim
to
and Hub (2c) Pulley and Hub. Pulley
remove
and
(2d).
(2e).
Bearing Cable
solder
(2f).
Assembly
terminals
and
on
Coil Top
Assembly Housing
Assembly.
Page
3-10
68S304
Section
1.
screws Assembly
Remove four Housing
Top
and
m.
Remove
n.
Remove and (5a
retain
two
Coil securing Assembly and remove coil. Spacers
screws
to
5b)
to
(2g)
(3).
securing
Gimbal
III
Brackets
Support Dial
Dial
remove
and
Ring
and
(5c)
brackets.
two
o.
Remove Dial.
p.
Remove Rotor
Housing
Remove Gimbal
Ring
Remove Gimbal
Ring
q.
r.
screws
locknut
securing
and
screws remove
and
securing remove
screw
and
Remove Ring.
Rotor
t.
Remove
Balance
u.
Remove Gimbal
Support
screw and pivot Assembly (4).
three
s.
Dial
Screws
screw(s)
Gimbal
and
Pivot
Rainbow
Assembly
(4e
and
(4b)
to
(4c)
to
from
(4d)
from
4f)
Balance location
and Note
Ring.
Air
Erector pivot.
Housing
to
from
(4a)
securing pivot.
Brackets
Gimbal
Gimbal
Weight(s)
Ring.
from for
(4g)
of
weight(s)
reassembly.
v.
Remove
Carbon
w.
Remove
and
x.
screw Remove securing bumper. and remove Ring
y.
Remove
z.
Remove
two
Bottom
Housing
Remove Housing
two
aa.
ab.
Air discard
can
Bearing
Gimbal
Rubber
screws securing and remove Assembly Adjustment from
8d)
Remove
Gasket
(8e).
ad.
Remove
Ground
Strip
Carefully
Bottom
screws securing and Assembly
Remove Nut, (8b, and Sc,
Bottom
(4h).
Bumper
(4i). (4j)
to
Gimbal
(6).
ac.
ae.
Seal
remove
Screw Plate.
Pivot Bottom remove pivot. Plate
(Sa)
to
(7)
to
Bottom
plate. and
Solder
Terminal
(8f). Diaphragm
Assembly
(8g)
from
Housing.
Page
3-11
685304
III
Section
af.
and
Remove
discard
Filter
(Sh).
CAUTION
the
Due
to
the the
precision
parts and
Rotor
recommended. in necessary
though, Assembly
assembled
is
ah.
Remove Rotor
screw and Shaft
ai.
Using discard
a
become the Rotor following
replace
the
Assembly
possible Housing
Using discard
a
(1,
Cap
3/16-inch
puller,
bearing
Housing
and
cap. remove
remove
and
4-10).
remove
Bearing
Air
Figure
remove
and
puller, Figure (3a,
bearing Bearing
Housing
Rotor
pre-
a
from bottom of housing 4-10). Figure assembly (2,
3/16-inch Rotor
not
it
screw securing Rotor Housing Rotor and Housing Assembly
to
and of
Assembly
should
to
field
Housing
Remove 4-10)
aj.
Housing However,
are provided. When the defective Rotor and Rotor should be with replaced and balanced unit.
procedures
ag.
required disassembly
Rotor
the
Rotor
and/or
re-balancing involved,
delicate
and
4-
Figure
(3b,
10).
ak.
Remove 3d,
3-31A.
retainer
air
and
Figure
3e,
al.
Remove
Balance
am.
Remove
Bar
a.
Remove
b.
Unsolder gyro.
Screws
Magnet
GYRO Element
(ELECTRIC) the Gyro
washer
spacer, 4-10). and
(3f
(3h,
Assembly
proceed
three
wires
(3c,
4-10).
4-10).
ASSEMBLY
(paragraph
housing
Figure
3g,
Figure
ELEMENT
Cover
and
REMOVAL.
-
as
To
remove
follows:
3-13).
from
brush
block
on
bottom
of
CAUTION Handle
with c.
d.
care
Remove 4-2) to
the to
two
Board/Brush damage to the
Circuit
avoid screws
securing
brush
Assemblies
brushes. block
(12,
Figure
Gyro.
Remove two Figure (14,
screws 4-2)
securing
to
Brush
Blocks
Mounting
Chassis.
Page
3-12
III
Section
68S304
e.
Circuit
covering f.
cord
lacing
Remove
two
Remove
screws
pressure
and
(81B715)
Board
securing
4-2).
to
Board
Circuit
tape
sensitive Figure
(10B,
Bottom
Plate.
g.
Unsolder
h.
Remove
Gyro
screw,
4-2) Figure Assembly.
i.
Belt
Remove
leads from lockwasher securing Pig
and Tail
clamp
to
Cable
(lla,
Element
Gyro
(paragraph
Bracket
Tensioner
Board. cable
Circuit
3-29).
CAUTION
To
avoid
circuit rotated
j.
out
Remove
carefully 3-31B.
damage to board wiring,
of
GYRO
disassemble 4-9A and
the
a.
to
pulley
Remove Assembly assembly.
four
c.
Hold
Vane
screw
securing
Gyro
screws securing and remove support. screws
Gimbal (11).
to Ring
is
to
chassis
DISASSEMBLY. refer to
securing Housing
in
hand
one
and
e.
Remove Pulley
remove
four screws securing Retainer (8) to Top Pulley and Retainer.
f.
Remove
and
retain
g.
Remove
Top
Pivot
h.
Remove
and
discard
to
Unsolder Top
Housing
j.
Remove
and
k.
Remove
cylinder
retain
Gyro
Bottom
Remove
Gyro
and
and
Gyro. -
(3)
81B107 board
removal.
Gyro
d.
i.
that
sure
ELEMENT ASSEMBLY Gyro Element Assembly, as follows:
three
Remove (9)
b.
proceed
Board
make
way during
remaining remove
(ELECTRIC)
Circuit
Gasket
shim
Slip-Ring
Top and
and
To Figure
PCBA
Housing
(1)
remove
remove
top
Heading
(10).
Pulley Housing
(7) and Assembly
Hub
and
(14).
(.6). Bearing
(18).
Assembly and Assembly
Cable
retain
Shim
Washers
and Coil Assembly remove coil.
(19)
(12).
(2).
Page
3-13
Section
685304 3-31C.
Disassemble
GIMBAL ASSEMBLY the Gimbal Assembly,
and
proceed
as
a.
Remove 9) and brackets.
two to
Remove Dial.
two
Loosen
set
(ELECTRIC)
b.
c.
III
DISASSEMBLY. to Figure
-
To 4-9B
refer
follows: screws
securing
Gimbal
Ring
(1)
securing
screws
screws
Dial
Support
and
remove
Dial
Support
and
(23)
pivot
Brackets Dial
(8
and
(3)
to
Brackets
screw
from
(10)
Gimbal.
d.
3-31D.
Remove bearing brush
screws
four
e.
Remove screw securing Erection and remove Ring
f.
Remove Ring.
Rotor
g.
Remove
Adjustment
h.
Remove screw(s) Gimbal Ring. from reassembly.
and
and
Remove 4-9A)
Figure
and
bearing
block and Ring
Ring
Erection Ring.
Assembly
(17)
Rubber
securing
from
Bumper
Bottom
remove
and
Bottom
and
(7)
remove
(4).
(6)
to from
(2)
Gimbal
Balance Weight(s) of Note location
j.
to
Gimbal
Screws
Remove screw securing bumper. and remove Ring
(ELECTRIC)
to
Housing
i.
two screws to Gimbal
brush
securing
retainer (5) block, retainer,
(19
Pivot pivot.
Gimbal
Ring.
weight(s)
(11)
Gimbal
to (5,
ROTOR HOUSING ASSEMBLY Disassembly. 4-10A and proceed as follows:
&
20)
for
Gimbal
Figure
Refer
-
CAUTION
re-balancing to the delicate required, Due parts the precision disassembly and involved, is of the Rotor and Rotor Assembly Housing not recommended. should it become However, necessary in the field the Rotor to replace and/or Rotor the Housing following Assembly are procedures provided. When possible the defective though, Rotor and Rotor Housing preshould with be replaced Assembly a assembled and balanced unit. a.
Remove
Rotor
Housing
Cap
(3)
from
Housing.
Page
3-14
68S304
b.
3-32.
Unsolder
three
assembly
(11)
PULLEY BELT TIMING 4-2 remove and
wires and from housing. ASSEMBLY Timing
-
the
remove
Section
III
and
Shaft
Rotor
REMOVAL. Belt Pulley
to
Refer
Figure
as
Assembly
follows: a.
Remove
Cover
b.
Remove Timing
Belt
c.
three
BRUSH
a. b. c.
Gear
securing and
Head
Bristol Synchro
Control
Guide guide.
Belt
remove
to
(16a)
setscrews securing Transformer
pulley and
Shaft
gear.
remove
Block
to
(16b)
3-13).
screws Pulley
three
Loosen
gear 3-33.
(paragraph
ASSEMBLY
BLOCK Assembly,
Remove
Gyro
as
Element
Assembly
to
leads
Unsolder
Remove Mounting shims.
two
REMOVAL.
-
proceed
the
remove
To
Brush
follows:
(paragraph (1,
Block
Brush
screws
securing Block remove and Save shims for use
Figure
Brush Brush
in
3-30). 4-3).
to
Block Block
Center
and
installation
four
of
Brush
Block. 3-34.
Support
Bearing
a.
Remove
(paragraph b.
c.
ASSEMBLY BRACKET Bracket is Assembly
SUPPORT
BEARING
Course 3-24).
and
Remove nut screw, Support of Bearing to chassis.
two
Remove Support
Bracket
(2,
other
securing
to
The
follows: Assemblies
securing
Assembly
Assembly
as
Shaft
lockwasher
and
screws
Bracket
removed
Set
Card
REMOVAL.
-
side
Chassis
one Figure
of and
side 4-3)
Bearing remove
bracket. d.
screw bracket
Remove
support 3-35.
COMPASS
FINISHED
removed
as
a.
Remove
b.
Remove 4-4)
c.
Assembly
two
Remove to Center
4-3)
to
-
REMOVAL.
The
Compass
Card
is
follows: Bezel
to
CARD
Figure
(2a, bearing remove bearing.
securing and
Center
two
(paragraph
3-20).
R/L screws pointer securing pointer. Mask and remove
screws securing Mask and remove
R/L
Tail
(2,
(1,
Figure
Figure
4-4)
tail.
Page
3-15
68S304
d.
to e.
screw
Remove
securing Assembly
three
Loosen
Figure (4, card and
Card
remove 3-36.
Pot
Heading
to
Wave
Washer.
ASSEMBLY Assembly,
SHAFT/METER Shaft|Meter
-
proceed
Remove
Cover
b.
Remove
G|S
c.
Remove
Bottom
REMOVAL. as follows:
4-4)
the
remove
To
3-13).
(paragraph
(applicable
Plate
Figure
Finished Compass Drum Assembly and
Center
Assembly
Meter
III
bug.
securing
(paragraph
a.
remove
and
setscrews 4-4)
(3,
Bug
Heading
Section
3-16).
in
steps
paragraph
3-15).
d.
Bezel
Remove
paragraph e.
Remove
Gyro
(applicable
Assembly
Element 3-30).
paragraph f.
steps
(applicable
Assembly
in
3-20).
in
steps
Course Shaft and Card Set Assemblies Remove 4-2) forward Figure to 8, by pulling from shafts Center Block Mounting
(7, and disengage Assembly
Bearings. CAUTION
g.
Handle
Brush
damage
to
Remove 4-3)
two
screws
use
Remove Bearing 4-3) (paragraph
i.
Remove
j.
Remove one (4, Figure Remove Tensioner
remove 1.
Release
m.
Remove 81C399-1
Ring
Support 3-34).
screw 4-5)
screw
one
Figure
remove Save
(2,
Figure
(3,
Actuator
Clutch
remove
Chassis,
and
and
lockwasher 4-2) Figure
(13,
Bracket
Assembly
Spring
(1,
carefully shaft.
shims
Block.
Bracket
securing
to
Brush
avoid
Block
and
Block
of
Actuator
Clutch
Brush
securing
installation
in
to
care extreme wires. brush
Center Mounting from Block Rotor/Slip
h.
k.
fragile
to
Brush
for
with
Block
the
Figure
4-5). Assembly actuator.
securing
Belt
to
Chassis
to
Board Chassis.
and
bracket. Slaving
three or
Belt
screws 81C460-1
(4,
Figure
securing (9, Figure
4-3). Circuit
4-2)
Page
81CB1,
3-16
III
Section
68S304
CAUTION Handle
breaking components. .
n.
o.
circuit or
Assembly
(complete) from assembly
81C460-1
or and
nuts
to
lockwashers Bracket
(1,
pulling
by
Section
the
to
avoid and
wires
81C399-1
Circuit Board Rotate 81C81, and remove side two one Bearing Support securing 4-5) to Chassis. Figure Center Remove disengage
to
care with damaging
board otherwise
the
forward
Center
Mounting
Block.
p.
Finished
Remove
paragraph q. r.
Compass
Pot off
Slide Heading 4-) Figure 7,
two Loosen Figure (8, pot
(applicable
Card
in
steps
3-35).
assembly
and
Assembly Center
setscrews
Clutch
Ring
Rotor/Slip Wave Washer.
and
Pot
Course
securing
to
4-4)
Washer
(6
and
Assembly.
Drum
Shaft
Assembly and remove
CAUTION Shaft/Meter
Handle
Assembly delicate
to
avoid damaging exposed assembly. s.
3-37.
Shaft/Meter Assembly Drum Assembly.
Slide Center
SHAFT/METER Shaft/Meter as follows:
ASSEMBLY Assembly,
-
with
extreme
parts
care
Figure
(11,
DISASSEMBLY. to Figure
To
the
of
4-4)
out
disassemble and
4-11
refer
of
the proceed
CAUTION
Shaft/Meter avoid damaging exposed assembly. Handle
to
Assembly delicate
with
extreme
parts
care of
the
NOTE
For and For a.
NSD P/N 52D189-( other all
two
Remove Mask
and
52D137-1332,
),
perform
NSDs,
screws
remove
skip securing
R/L
-2331,
-1333,
steps
to
a step R/L
and c. Scale
-2334,
b below.
(1)
to
Center
Scale.
Page
3-17
III
Section
68S304
b.
c.
two
Remove Bracket
and
screws remove
securing
two
Remove
Mask
and
d.
Unsolder
e.
Remove Bracket
to
leads
to
screws remove
Meter R/L securing meter, two insulating Save washers and spacers R/L Meter.
to
Center
two
Meter
and
to
(2)
(1)
screws securing remove scale and
two
Mask
Center
and two spacers. in installation
of
Meter
Mask.
Center
R/L
R/L
Scale
Center
Mask. (3). Meter
washers for use
NOTE For below.
all
For
f.
Unsolder
g.
Remove
h.
Unsolder
i.
Remove Support
two
),
to
leads
two screws two two
leads
from
screws and
two
NAV
-2331,
to
Meter
TO-FROM
securing remove
Meter
TO-FROM
TO-FROM
two lockwashers Remove screws, TO-FROM washers NAV Meter securing meter and insulator. and remove two
Remove Rotor/Slip
remove BEARING Bearing
Ring
the
SUPPORT Support
Remove
b.
Remove 3-14).
Front
c.
Remove 3-15).
Bottom
Remove
G|S
paragraph e.
Remove
paragraph
to
Meter
Meter
and
NAV Meter
and
to
insulating
Meter
lockwashers to Meter
(6)
(5).
Bracket
securing
and
Bracket
assembly.
a.
d.
screws Assembly
(5).
meter.
k.
from
i
j.
step
(4).
Unsolder
leads
through
f
NAV Meter.
securing
Bracket
-2334
-1333,
perform steps other NSDs skip
j.
1.
3-38.
52D137-1332,
NSD P/N 52D189-(
and
Gyro
ASSEMBLY Assembly
(applicable
Bezel
Plate
(applicable Assembly
(paragraph
the
Remove
-
Assembly
Element
Meter
BRACKET REMOVAL. Bracket as follows:
3-30).
steps
in
paragraph
steps
in
paragraph
(applicable
steps
in
3-16). Bezel 3-20).
Assembly
(applicable
steps
Page
in
3-18
Section
68S304
f.
g.
Remove
Brush
is
necessary
not
Remove
Remove
Clutch
i.
Remove
one
j.
one
Tensioner
remove k.
Release
1.
Remove 81C399-1
3-33).
assembly Assembly
Bracket
It
leads. (applicable
3-34).
Actuator screw 4-5)
Figure
Remove
Support
paragraph
h.
(4,
to
Bearing
in
steps
(paragraph
Assembly unsolder
Block
III
Spring
securing
Clutch
Chassis,
and
and
lockwasher 4-2) Figure
to
screw Bracket
(13,
4-5).
Figure
(3,
Actuator
remove
Assembly actuator.
securing
Belt
to
Chassis
to
Board Chassis.
and
bracket. Slaving
Belt
three or
screws
4-3).
Figure
(4,
securing Figure (9,
81C460-1
Circuit
4-2)
81C81,
CAUTION
Handle circuit or breaking components.
m.
board otherwise
circuit
Rotate
Board
Remove
to
two
nuts
the
81C460-1
or
and
Assembly
(complete) Section from assembly
Center
disengage
avoid and
wires
81C399-1
81C81,
and one side remove Bearing Support securing 4-3) to Chassis. Figure n.
to
care with damaging
to
lockwashers Bracket
pulling
by
the
(2,
forward Mounting
Center
Block.
o. 3-39.
Remove
ASSEMBLY removed as follows:
BRUSH
a. b.
Remove
Cover
Remove
nut,
Assembly
remove c. 3-40.
Unsolder
SYNCHRO
remove
Support
Bearing
(2a,
brush leads
-
REMOVAL.
(paragraph screw
or from
to
Assembly The
Bracket.
Assemblies
Brush
3-13).
lockwasher and 4-5) Figure 2b, bracket. Brush
CONTROL TRANSFORMER Synchro the Control
are
Assembly
securing
to
remove
and
ASSEMBLY Transformer,
-
Brush
and
Chassis
brush.
REMOVAL.
proceed
To as
follows: a.
Remove
Cover
(paragraph
3-13).
Page
3-19
Section
68S304
b.
covering
c.
d.
Printed
or
4-2)
(81D715)
two
Remove Plate.
in
f.
g.
Remove
two
Figure Synchro
4-5) Control
Synchro 3-41.
circuit leads
b.
Remove
and
4-3).
(applicable
Mounting
Bracket
remove
and
Chassis
screws securing Transformer
(6a,
bracket
lacing
and
pressure
and
Board
Circuit (10A,
(81D715)
bracket.
the
Remove
to
Bracket
remove
Motor
Gear
3-13).
cord
Printed
Mounting
and
REMOVAL.
-
(paragraph
Cover
or
4-2)
way
Transformer.
Control
covering
of Figure
Assembly
Pulley
securing
to
MOTOR ASSEMBLY Assembly as follows: Remove
out (7b,
TB1
Bottom
3-32).
GEAR
a.
to
board
board from
Belt
screws
three
Remove
circuit
securing
Timing paragraph
Remove
steps
screws
move synchro
Carefully
unsolder e.
and pressure sensitive Cord tape Circuit Board (81B107) (10 Figure 4-2) Figure (10A on bottom of NSD.
lacing
Remove
III
(81B107) 4-2)
Figure
sensitive tape (10, Figure on bottom of
NSD. c.
d.
Remove Plate.
two
f.
two Remove Motor Gear Clamps. Remove
in 3-42.
nuts,
to
Synchro
a.
Remove
Cover
b.
Remove (81C81
three or
mica
Gear
REMOVAL.
-
(paragraph screws 81C460-1)
washer
for
and and
Clamps
of
PULLEY ASSEMBLY as follows:
board Motor
screws
Chassis
installation
Save board.
circuit
securing
move circuit leads from Gear
Carefully
unsolder e.
screws
(7,
out of Figure
lockwashers motor
remove
motor from Motor. Remove
to
board
and
the
Bottom
way
and
4-5).
securing Synchro
and
save
for
use
Assembly
Pulley
3-13). Printed securing 4-2) Figure (9, use in installation
Circuit
Board Chassis.
to of
circuit
Page
3-20
Section
68S304
c.
Carefully
two
screws 4-5) Figure
3-43.
INTERNAL
the
CABLE
Internal
of remove following
most
the
move and
circuit clamps
to
Chassis
and remove board to one side (12, Assembly Pulley securing Assembly. and remove Pulley -
component
order to remove to remove necessary assemblies of the NSD. perform assembly, the
REMOVAL.
ASSEMBLY Cable Assembly
the
To
III
it
parts
and
Internal
In
is
Cable
procedure: (paragraph
a.
Remove
Cover
b.
Remove
Front
3-13).
(applicable
Bezel
steps
in
paragraph
steps
in
paragraph
3-14).
c.
Remove
Bottom
(applicable
Plate
3-15).
d.
Remove
e.
Remove
Bezel
h.
i.
Remove
j.
Center
Mounting
Remove steps
Circuit
Board
in
Remove steps
in
Course
them
1.
Remove steps
n.
Remove
paragraph o.
Remove
in in
or
81B107
3-26
or
Belt
paragraph Brush
by from
(applicable
3-25A). 81D715
(applicable
3-26A).
Board/Brush 3-28). paragraph Gyro Element Assembly 3-30 or 3-31A). Timing
in
Remove
Remove steps
Board
paragraph
or
Circuit
in
paragraph m.
steps
Assemblies shafts
81C460-1
or
81C81 3-25
paragraph
circuit
paragraph k.
(applicable
Assembly
Card and Set Shaft forward to disengage Block Bearings.
Remove steps Remove
steps
3-20).
pulling g.
(applicable
Assembly
3-16).
paragraph f.
Meter
G|S
paragraph
Pulley
Assembly
(applicable
Assembly
(applicable steps
in
(applicable
3-32).
Block
Assembly
(applicable
steps
in
3-33).
Bearing
in
paragraph Brush
Support Bracket 3-34).
Assembly
(applicable
Assemblies
(applicable
steps
in
3-39). Clutch
Actuator
Spring
(3,
Figure
4-5).
Page
3-21
Section
68S304
p.
screw 4-5)
Remove one Figure (4, Remove Tensioner
one
Chassis
and
r.
Release
Slaving
s.
Remove
q.
and
Unsolder
v.
Remove
Gear
lockwashers Bracket (1,
Remove 4-5) to
CLEANING
3-45.
to Due employed
two
material
by
Ring
remove
and
to
pulling from
Shaft
screws, and 4-5) securing
Receptacle Internal Cable
components manufacture greatly impair service life. every possible
can and
Bearing 4-5)
Section
Center Rotor/Slip
securing and
precision the in
to
leads.
screws
Chassis
Belt 4-2)
securing Figure
hex lockwashers nuts, cable clamps (8, Figure Assembly to the Chassis.
Cable
3-44.
securing Figure
two two
remove
the
Motor
Assembly actuator.
4-3).
Figure
(4,
complete assembled to disengage the Center Mounting Block.
u.
w.
Belt
Remove forward
the
remove
and
and lockwasher (13, Assembly bracket.
remove
nuts Assembly
Actuator
Clutch
Chassis,
screw Bracket
two
Support Chassis.
t.
securing
to
III
and of
(10, Figure Assembly.
tolerances
close
the
NSD,
over-all
foreign
operating
It is therefore be effort taken to maximum protection of each component ensure and and during disassembly, repair, assembly. As assembly component part and is removed each assembly it should in a dust-free environment and protected be placed with cover. a dustproof efficiency
that
recommended
3-46.
(AIR)
the
The gyro,
replaced 3-47.
air cannot
NSD
routinely
overhaul, remove oil, ultrasonic of use During
to
that
located filter, be cleaned. at overhaul of
all dirt,
parts and cleaning
parts
should
in The
the be
moisture. is highly
the
INLET
filter
port must
of be
NSD.
cleaned carefully possible, If
the
recommended to or tapped holes is not possible,
with small bores this cleaned. If pivots, such as etc. parts bearings, shims, should be cleaned thoroughly in grade solvent a high such as Chlorothene-NU (Dow then thoroughly Chemical Co.), and dried with clean, low pressure air. Any cleaning air used must be clean. Interiors small solvent of holes be cleaned with pegwood dipped should in clean solvent. ensure be can
all
effectively
Page
3-22
68S304
III
Section
and gears of brush. fiber
Teeth
glass
pinions
should
with
cleaned
be
a
3-48.
should care be taken to avoid damage to small Extreme parts In delicate cleaning. or during addition, some must be arrangement made to permit identification of respect to its previous part with location in the each is particularly true of bearings, pivots NSD. This and and washers. nuts attaching hardware, screws,
3-49.
After
provision
cleaning, and damage
from
must
made
be
to
protect
parts
contamination.
3-50.
INSPECTION
3-51.
be thoroughly evidence of prior to Repair of is recommended when it can be done only operation without the proper adversely affecting of the doubt exists operating as to the condition NSD. If of or assembly, should the part be replaced component any a new one. with
3-52.
GENERAL.
All
examined excessive defective
with wear parts
assemblies loupe
overhaul, or
parts and
If plating replate or protect lacquer. clear
of
for
should any assembly.
examine each part for breakdown of the plating protected are by anodize or stainless steel parts are appears to be worn material defective area with a light
attention given to parts Particular should be which or internal external threads. contain If any evidence to the threads is repairs of damage found, should be correct or thread the restorer. made tap using The cleaned should then and part be inspected thoroughly prior to assembly.
precision used bearings throughout service over extremely efficient time. Gyro and Rotor of The Gimbal Ring always bearings must be replaced Assembly other removed from All the bearings for evidence or damage, be examined of wear, to be defective. if found
BEARINGS. NSD
The
provide
periods Housing overhaul. should
replaced 3-55.
and an eye or damage
Aluminum
through,
3-54.
parts
treatment
iridite passivated. coat
REPAIR
and corrosion
repair of
During
evidence material.
3-53.
AND
PIVOTS.
evidence noted, necessary excessive
pivot Each should of pits or scoring. light a polishing
to wear
remove is noted
be
and at NSD
and
inspected
If should If
them. the pivot
the long
carefully for scratches small are that be all is other or scoring should be replaced.
Page
3-23
3-56. 3-57.
the
together.
the
of
two
and
taken various
parts,
each
subassembly protected until
As
covered assembly.
PROCEDURES
installation must be
joining
When
ASSEMBLY
AND
INSTALLATION Throughout
care extreme contamination
3-58.
III
Section
68S304
and
procedures,
assembly
to
prevent
damage or assemblies. be forced it must be next higher
parts and must not they is completed,
the
with
-mated
completion of repair overhaul or procedures be tested to ensure proper operation. 3-106. are provided in paragraph
After NSD
the
must procedures
Test
NOTE
procedure COVER
INSTALLATION.
-
the
performing
and all
is completed, must be secured
fasteners 3-59.
installation
each
After
with
The
Glyptal.
is
Cover
procedure.
following
assembly
threaded installed
by
Figure
(See
3-1.)
CAUTION
care
Extreme damage assembly a.
Slide
to b.
to of
Cover Chassis
screws
(2).
Apply
a
small
two
to
exercised meter
instrument
over using
to
equivalent)
be
should Glideslope the Cover.
amount edges of
of screws
during
and
body 6-32
No.
prevent
shaft
x
secure button
1/2
Blue
Cover
head
(or
Glyptal
to
them
secure
in
place. c.
Install
d.
Wrap
two connector tape
around 3-60.
FRONT
(1).
Latches
Spring
(3M Y-9244, 3/4 inch wide, or equivalent) of Cover and Bezel Assembly.
junction
BEZEL
-
INSTALLATION.
the
Install
Front
Bezel
as
follows: CAUTION
Internal
prior cloth
a.
Lighting
to to
Wedge
must
installation.
reflective
avoid surface.
Install if used,
Internal on Course
be a glass
Use
scratching
Lighting
and
Card
Wedge Set
wiped
soft and
(5b, Shafts.
clean clean anti-
Figure
Page
4-1),
3-24
Section
68S304
b.
Internal
Connect
Lighting
Wedge
to
leads
III
aircraft
power. Secure
Front
gasket
to
c.
Install
e.
Install Course Shaft and Set
Cover
Table
and for
3-59).
(paragraph
d.
4-1) 3-1
Figure
identification.)
hardware
attaching
(5, (See
Assembly Assembly.
Bezel Bezel
Set secure
4-1) Knob Figure (4, setscrew with knob
on No.
Course
4-40
x
3/16.
Install Shaft
f.
Card
and
4-1) (3, Figure Knob setscrew Knob with
Set secure
on
Course
Set
4-40
No.
x
3/16. 3-61.
(AIR)
Bottom a.
b.
BOTTOM PLATE Plate proceed
d.
e. 3-61A.
as
Secure
Secure Plate
circuit two with
Install
Cover
with
tape side)
four
(10, No.
Figure x
2-56
pressure of board and
strip
(paragraph
binder
4-2)
to
Bottom
1/4. sensitive secure
tape tape
replace If necessary, Bottom Plate (8, Figure or equivalent. P/N 11M286
adhesive transfer 4-1) (instrument
side)
a two-inch Apply side of to open cord (two lacing
pressure of board and
strip
to
d.
Bottom Secure Plate 2-56 No. head screws, Install
Cover
INSTALLATION. follows: -
circuit places).
Secure PCB (10A) 2-56 No. x 1/4.
(paragraph
with
3-59).
install
BOTTOM PLATE Plate proceed as
on with
x 3/16.
circuit places).
c.
e.
Chassis
the
install
To
Bottom
b.
to
board screws,
a two-inch Apply side of to open (two cord lacing
To
adhesive transfer 4-1) (instrument
Bottom Plate 2-56 screws, No.
(ELECTRIC)
a.
INSTALLATION. follows:
replace If necessary, Plate Figure Bottom (8, or equivalent. P/N 11M286 head
c.
-
bottom
to x
plate
Chassis 3/16.
the
tape
sensitive secure tape
with with
two
on
with
tape with
screws,
four
binder
3-59).
Page
3-25
III
Section
685304
3-62.
METER
G|S
ASSEMBLY
INSTALLATION.
-
CAUTION
care extreme Use during Assembly damage to prevent a.
Solder
side b.
of
install
secure spacers
NSD
d.
Install
No.
and
52D189-(
and
-1220
*52D136-0010
through
-1220
Internal
Head,
additional
Front
and
No.
Flat
Head,
2-56
x 7/16.
Figure
post
rear
on
4-2).
terminal
solder
on
front
3-59).
Attaching
Bezel
Part
Hex P/N
-2334
*52D137-1020,
*If
3-1.
Wire to Assembly.
(paragraph
Cover
(1,
to
Hardware
Quantity
Description
Black, P/N
Screw,
No.
4
x 1/2
6
3S551
)
52D137-2331
-1120
and
White/Gray Solder side of G|S Meter
52D137-1332,
and
used) (if x 3/8.
c.
Part
-1333
Center
terminal
to
Meter
Meter in place Assembly and Block Mounting using two two socket head cap screws,
G|S
to
meter
4-40
Table
the
the handling G|S after installation meter arm.
Wire Assembly
White/Violet Meter G|S
Carefully
No.
in and
Black,
No.
Screw,
Flat
Head,
2-56
x 1/4.
Flat
Head,
2-56
x 1/4.
Lighting Screws, Gasket
Cap 3S82
4-40
Screw, 3S307
No.
4
P/N Black, P/N
Screw, 3S307
No.
4
Black,
substitute Wedge four is used, each Flat 2-56 3S529. Add one No. x 1/2. P/N 4-1). P/N Fiqure 32B44, (6,
Page
3-26
Section
68S304
3-63.
CIRCUIT PRINTED INSTALLATION. Boards are only
ASSEMBLY (81B89 and 81B90) 81B89 The and 81B90 Printed Circuit 52D13752D137-1332, used on NSD P/N 52D137-2334 52D137-2331, 52D189-( and procedures as follows: are
1333,
Assembly
a.
Unsolder
b.
Solder
c.
BOARD
defective
new
in
lamp(s)
Circuit
Install
place
Board
green,
Solder Meter
-
).
lamp(s).
two
using Assembly No. screws head d.
III
(if
used)
4-2)
on
and
two
Bezel
binder
x 1/4.
yellow
Bracket
lamp(s).
Figure
(2,
spacers
1-72
defective
of
and
(6a,
orange
to
leads shown
as
4-2)
Figure
G|S
in
Flag Figure
3-2.
e. 3-64.
Install
Front
AIRPLANE/HDG Install
MINIATURE
INSTALLATION.
3-60).
ASSEMBLY
REFERENCE
the
in
Assembly
Reference
(paragraph
Bezel
Miniature with
accordance
-
Airplane/Hdg
the
following
procedure: NOTE
a
step In hardware 52D137-2331 a.
is
Figure
binder head, 52D137-2331 P/N screws black, b.
If
Circuit
during Bezel x 1/4.
c. 3-65.
Install
HEADING
procedures Assembly
a.
different
attaching
for
NSD
P/N
-2334.
Miniature
Secure (3,
the
that
note
below, slightly and
Airplane/Hdg
to
4-2)
black,
screws and
No. Board
removal Assembly
Front
Bezel
No.
1-72
x 1/8
(2,
two
three
x 1/8.
For
binder
4-2) was secure Circuit binder head screws
(paragraph
FLAG
(1) on Install Clamp 3-3. shown in Figure and Clamp. on Solenoid
1-72
Gyro Insert
NSD
head,
loosened
Figure
ASSEMBLY installation for of are as follows:
WARNING
Assembly
using
use two at bottom.
-2334
procedure, with
Reference
Assembly
Bezel
Board No.
to 1-72
3-60). -
the
The
INSTALLATION. Warning
Heading
Flag
Connecting Flag
through
Flag
as
Rod
bushing
Page
3-27
Section
68S304
III
RESDISTOR LLENW
WHITE
WHITE
.o
ORANGE RED
o
RED
'o
/
NSD P/N 52D137-1332, AND
-1333,
-2334
-2331,
NSD P/M 52DI89-(
NSD P/N 520137-1020 THRU
-
)
-1220
RESISTOR
/
mRED O O O
O O
o o NSD P/N 52D136-ALL
Figure
3-2.
G|S
Flag
Meter
Bracket-Wire
Location-(Front
View)
Page
3-28
68S304
Section
b.
With
position parallel c.
plunger
Solenoid
Secure 56 x
Flag
to
position
in
Flag
using
Warning Heading is out of that Flag not does strike but deflected.
e.
Secure 1-72
2-
No.
stop
Flag X
in
Flag
3-3) (3, Figure so Solenoid is engaged inside Bezel when
Stop
view
when
top
of
place
using
binder
head
screw
the
Bezel
1/8.
Install
f.
setscrew
Clamp
out,
approximately Bezel.
3/32.
Adjust
d.
bottomed
3-3) Figure (2, bottom edge is line center of
so that horizontal
III
Bezel
Front
3-60).
(paragraph
BLACK BLUE
I
3 Figure 3-66.
3-3.
Heading
ASSEMBLY
BEZEL
Assembly
in
-
Flag
Warning INSTALLATION.
accordance
with
the
Installation
Install following
procedure:
CAUTION
To prevent support
the
possible meter
damage
assembly
to
G|S
during
Flag
Meter, assembly
procedure.
Page
3-29
Section
68S304
III
NOTE
step In hardware 52D137-2331 a.
is
that
note
below, slightly and
a
the
different
attaching NSD P/N
for
-2334.
Bezel Position Assembly on Chassis and secure in 4-40 flat six place using head cap screws No. x 52D137-2331 For NSD P/N and use 1/4. four button lockwashers and four No. 4 internal head cap 4-40 x 1/4 sides to secure of Bezel screws No. Assembly. -2334
b.
3-67.
leads
to
3-2)
and
Install
Front
d.
Install
NSD Cover ASSEMBLY Assembly,
SOLENOID Solenoid
front G|S side Solenoid (Figure
Bezel
c.
(paragraph
3-60).
(paragraph
3-59).
INSTALLATION. perform the following
b.
Solder
leads
c.
Install 65).
Heading
Front
(paragraph
e.
Install
Cover
G|S G|S
FLAG Flag
METER Meter
and
and
Stop
(paragraph
Assembly
Flag
to
4-2)
Bezel
two
3-3).
(Figure
Warning
Bezel
Install
used)
d.
Solenoid
the
procedure:
Assembly (6b, Figure using Heading Warning Flag 1-72 head screws No. x 1/8.
to
install
To
-
Solenoid
Secure
Bracket
Meter
Flag 3-3).
Assembly binder
a.
3-68.
Solder (Figure
Lighting
Internal
Wedge
3-
(if
3-60). 3-59).
(paragraph
ASSEMBLY Assembly,
INSTALLATION. To as follows:
-
install
the
proceed
CAUTION To
prevent
Meter, assembly a.
Secure Flag 2-64
possible support
to
damage meter
the
the
G|S
assembly
Flag
during
procedure.
G|S Meter x 1/8.
Flag
Bracket
Meter
using
(6a
3,
two
Figure
flat
head
4-2) to screws
Page
G|S
No.
3-30
68S304
III
Section
NOTE
step In hardware 52D137-2331
b
slightly and
two flat c.
Solder
G|S Meter
Flag d.
Flag Bracket
Bezel
Install
Bracket
two binder
'
(or 2-
Assembly
screws and
No.
use
-2334
to
resistor
G|S
3-4). 3-66).
RED
ORANGE WHITE/ORANGE
RED
o©
&
-BROWN WHITE/BLACK
WHITE/ORANGE
NSD P/N 52D137-1332, P/N
Bezel
(paragraph
WHITE/BLACK
NSD
P/N
BROWN
YELLOW
2331 and
NSD
head 52D137-2331 1-72 x 3/16.
Meter leads and 3-2 and (Figures
Assembly
GREEN
to
Meter
using
NSD P/N screws No.
head
attaching
for
different
-2334.
Secure G|S Flag Block) Mounting For 56 x 3/16.
b.
the
that
note
below,
is
-1333,
-2334
520189-(
i
NSD P/N 520137-1020
THAU
-1220
BAOWN
RED
o
NSD PIN 62Di36-4010
3-69.
Figure
3-4.
BEZEL
ASSEMBLY
G|S
Assembly
Bezel
THRU
-1220
Bracket-Wire Meter Flag (Rear View) BEARING Bearings,
-
Location
perform
install
To
INSTALLATION.
the
following
4-2)
in
procedure: a.
Install Assembly.
b.
Install
new
Bezel
Figure
Bearings
(6d,
Assembly
(paragraph
Bezel
3-66).
Page
3-31
3-70.
III
Section
68S304
COURSE AND/OR procedures The Assemblies Shaft Shaft Assembly,
CARD for
SHAFT
SET
ASSEMBLY
installing the identical. are proceed as follows:
-
Course
To
INSTALLATION. and Card Set install either
NOTE
installing
When ensure shaft. a.
Card
Set
Install Mounting
shaft
installed
in
or
(7
Block
left
is
place
in
The of NSD
side
on
4-2)
Figure
8,
Bearing.
the
Assembly,
Shaft
4-2)
(Figure
spring
in
Course
Center
is
Shaft
(looking
the
from
front). b.
c. 3-71.
Install Heading
Shaft Gear
Install
Bezel
a.
b.
Perform
81C81
a thin Apply of mica washer.
d.
Align Figure
mica
a.
b.
81C399-1)-
and Board
Assembly,
Assembly
Board
Board
Assembly
Thermacote
#249
Circuit
(Figure
Adjustment
3-95).
coat
of
washer
with
each
side
transistor
in
hole
to
(6,
4-6). Circuit
Secure
screws No. x No. 4-40
Install
CIRCUIT Install
3-66).
(81C81 Circuit
Circuit
(paragraph
c.
f.
the
to
leads
all
Solder 3-5).
head screw
3-72.
ASSEMBLY
install
and/or
Gear
follows:
as
procedure
e.
Shaft
(paragraph
Assembly
BOARD CIRCUIT INSTALLATION. To
proceed
over Omni as applicable.
Belt
Pulley,
all or
as Board
binder
binder head
binder
81D715)-INSTALLATION. follows:
or as
(81B107
to
leads 3-8A,
two
using one
3-59).
Assembly
Board
Secure Circuit two 1) using
Chassis and 3/16
5/16.
BOARD ASSEMBLY
Solder 7, 3-8,
x
(paragraph
Cover
Circuit
to
Board 2-56
Circuit
(Figures
Board
3-6,
3-
applicable).
to head
Bottom
Plate
screws
No.
(8, 2-56
Figure
4-
x 1/4.
Page
3-32
68S304
Section
SIC81
III
81C460
BLACK
GRAY
RED WHITE
BLUE RED WHITE VIOLET WHET BLUE
YELLOW VIOLET WRHTEUBLUE
TE/ERED H TE
3-5.
Figure
c.
Printed
Place over
tape d. 3-72A.
Install
CIRCUIT Install
a.
Install
under b.
Apply hole
Circuit
a two-inch strip exposed surface cord with lacing
BOARD Circuit PCB PCB on
pressure Circuit
and
81C460)
tape
sensitive Board and
secure
(two places). 3-59).
(81C460-1) ASSEMBLY as follows: Assembly
three
using back
-
INSTALLATION.
transistor
d. e.
Align
compression
to
gear
is
spacer
Insure
mica
washer
and
under
align
gear.
with
transistor
screws.
screw.
Thermocote in gyro slaving
slaving
of of
(81C81
Board
Align
Secure
Wiring
(paragraph
Cover
c.
gyro
Board
RED
hole.
washer on top of transistor. screw by putting down transistor. hole and through
through
Page
3-33
68S304
e.
transistor
Secure
gyro 3-73.
PIG
Tail a.
b.
Tail on
Pig 4-5)
internal x
Solder (Figure (Figures
all
Remove mounting
slack screw
CIRCUIT
in
cable lacing
to
(11,
installed)
or applicable).
81D715
81B107
as
tie
to
cable
Gyro
INSTALLATION. as follows:
-
The
installed
is
Circuit
secure cable 4Figure head screw
(if
TB1
and cord.
ASSEMBLY
(11a,
binder
Board 3-8A,
or
Assembly
leads
and
to
leads
with
grommet
and
Assembly Clamp
Circuit 3-8,
BOARD/BRUSH
Solder
Gyro
3-7,
Pig
chassis.
using Cable lockwasher
cable and
3-9) 3-6,
Board/Brush
Circuit
a.
Gyro No. 4 3/16.
install
To
through
Assembly
of
around
cable Route bottom of 4-40
Cable
rear
through
down
transistor.
-
Thread Figure
2)
d.
screw
through
and
CABLE ASSEMBLY INSTALLATION. proceed Cable Assembly, as follows:
TAIL
No.
c.
putting
by hole
gear
slaving
to
3-74.
III
Section
(Figure
Board
3-10).
NOTE
tightening
Before align
Circuit
their
respective
b.
c. 3-75.
Secure Figure 5/16.
Install
4-9).
to
Board
Circuit 4-2)
using
two
Brush
flat
(paragraph
Cover
head
the
a.
Figure
(13a,
Bearing
secure
and
Mounting screws
Blocks (14, 3-48 No. x
3-59).
TENSIONER BELT BRACKET Install INSTALLATION. as follows: Assembly Install Bracket
step b below, brushes center on on Diode Support
rings
slip Figure
(1,
Assembly
in
screws so that
Board
ASSEMBLY Belt
using
AND Tensioner
4-2)
flat
head
on Belt screw
BEARING
-
Bracket
Tensioner 2-56
x
No.
3/16.
b.
Install Chassis
button
c.
Position slack Bracket
Belt Tensioner an using internal socket, head, cap, Belt
in
Gyro
in
Tensioner Belt
Bracket
No. screw, Bracket
to
medium
and Bearing 4 lockwasher 4-40 No. x 3/8. Assembly
tension
to and
on and
remove secure
place.
Page
3-34
68S304
3-76.
III
Section
(paragraph
d.
Install
(AIR)
ELEMENT GYRO and 81C48 81C47
the
Cover
identical.
Where
ASSEMBLY Gyro Element
differences Gyro
Assembly of are almost will be noted. proceed as
ASSEMBLY.
-
the
assemble follows:
To
3-59).
Assemblies
they
occur
Assembly
Element
NOTE
NSD P/N 52D137-1332, For through and For all b below. other
-1333,
-1220,
a.
b.
c.
-2334,
a
steps
to
and c.
step
install the Bar Magnet (3h, Figure To 3-11. position magnet as shown in Figure must the centerline magnet be centered about shown in the side ±0.010. as The view, indicates north be located paint and must as magnet After secure 11, shown. Install
of
Rotor
d.
Install 10).
e.
Install
has
it
as shown been aligned with Epoxy in place
Balance
adjustment
Final
(3e,
f.
-2331,
perform NSDs skip
-1020
3d,
Install
and
Screws
will Housing
new
Rotor
air and
3c,
new
Rotor
(3f
be made Assembly. Housing
retainer
and 3g, during
dot of shown.
Figure
A-12,
washer
3where
4-10).
Figure static
(3a,
Bearing
housing,
Figure
in
4-10) The (CL),
balance
4-
Figure
and
spacer
(3b,
Figure
4-10).
Air
Housing
Bearing
4-10).
g.
h.
the Rotor Housing. Install into the Rotor Note the curvature the buckets side of the of in the rotor operate that rotor will in a clockwise and ensure when viewed from top of rotor direction, housing.
i.
j.
Rotor
Secure
No.
4-40
Install secure Balance
in
Rotor
Housing
using
pan
head
screw
x 1/4. Rotor Housing using pan head Rotor
and
Cap
screw
Housing
4-10) Figure (1, 4-40 No. x 1/4.
Assembly
(see
and
paragraph
3-103).
Page
3-35
Section
68S304
O
III
O GYRO-CENTER (VIOLET) LJ
'
CD-111-K (YELLOW) G/S FLAG METER BRACKET
(WHITE/BLACK)
GYRO-START (WHITE/GREEN) CD·111-F (RED) CD-111·E (BLUE) GYRO-FINISH
(WHITE/GRAY)
CD-111-D (BROWN) G/S FLAG METER BRACKET (WHITE/ORANGE) CYRO VACUUM SWITCH (BLACK) SOLENOID
(+) (BLUE)
CinCUIT BOARD 81C81 (WHITE/BLUE)
Figure
3-6.
(NSD
P/N
Printed Circuit 52D137-1332,
Board -1333,
Wiring -2331,
-
and
(81B107-2) -2334)
Page
3-36
O
O
-
III
Section
68S304
.-..
L
Ole
-
-
-------
GYRO-CENTER (VIOLET) CD-111-K (YELLOW} G/S FLAG METER BRACKET (WHITE/BLACK)
------
---
----
CD-106-33 (WMITE/BROWN/ORANGE) BAUSH BLOCK.2 (ORANGE) CD-106-31 (WHITE/BROWN/VIOLET) CD-106-32 (WHITE/BROWN/RED) CD10&-34 (WHITE/BROWN/YELLOW) BRUSH BLOCK-4 (BROWN) CD-10&35 (WHITE/BROWN/GREEN) PIRCUIT BOARD 81CB1 (WHITE/BLUE) *CIRCUIT BOARD 818107.3 (WHITE/BLUE) CD 111 F (AED) GYPO-RAPT (WHITE/GREEN) CD 111 E (BLUE) GYRO ftNtSil (WHITE/GRAY) CD-111-O (BROWN) G/S FLAG METER BRACKET (WHITE/ORANGE) OYilO VACUULI 3WITCH (SLACK) SOLENOID ( ) (DLUE) 'CIRCUIT BOARD 818107·3 (WHITE/BLUE)
*JUMPER WIRE
Figure
3-7.
Printed (NSD P/N
Circuit 52D137-1020
Board
Wiring
through
-
(81B107-3)
-1220)
Page
3-37
Section
68S304
O
III
O
CD-106-33 (WHITE/BROWN/ORANGE) BRUSH BLOCK-2 (ORANGE) CD-106-31 (WHITE/BROWN/VIOLET) CD-106-32
(WHITE/BROWN/RED)
CD-106-34
(WHITE/BROWNTYELLOW)
BRUSH BLOCK CD-106-35
(BROWN)
-4
(WHITE/BROWN/GREEN)
(WHITE/BLUE)
CIRCUIT BOARO 81C81 CIRCUIT BOARD (WHITE/BLUE)
•
$18107-3 CYnc
VACUU..!
J..lTLM
(BLACK)
COLEN01D (1) (BLUE) * CIRCUIT BOARD 515107-3 (WHITE/BLUE)
*JUMPERWIRE
Figure
-
3-8.
Printed (NSD P/N
Circuit
52D136-0010
Board
Wiring
through
-
(81B107-3)
-1220)
Page
3-38
685304
Section
III
WHT/GRY (GYRO) YEL (PT) VMT/ORGtSLM)
(HDG FLAG) BLU
ORGi361
(351YEL
Figure
3-8A.
Printed
Circuit Board Wiring 52D189-( ) )
1 2
(81D715)
(NSD
P/N
Page
3-39
YELLOW (SYNCHRO)
BLACK (PIG TAIL) BLUE (SYNCHRO) GREEN (PlG TAIL)
BLACK (SYNCHRO) GRAY (PIG TAIL) RED/WHITE
(SYNCHRO)
VIOLET (PIG TAIL)
5
Figure
3-9.
WHITE/BLACK (SYNCHRO) ORANGE (PIG TAIL)
Terminal
Board
TB1-Wiring
68S304
Section
O
III
O WHITE GREEN BROWN
Figure
3-10
.
Circuit
Board/Brush
Assembly
Wiring
Page
3-40
68S304
Section
EPOXY
III
BAR MAGNET
A-12
CL
CL
ELECTRIC
( FRONT VIEW) 0.485 EPOXY A--12
(SIDE VIEW )
.
' BAR MAGNET
A IR
•
CL
CL (SIDE VIEW)
(FRONT VIEW)
Figure
3-11.
Bar
Magnet
Installation
Page
3-41
68S304
III
Section
NOTE
to
Refer location
Figure
4-9
for
for
rest
parts
of
new Filter
k.
Install
1.
Align
hole
hole
in
in
identification of procedure.
and
(Sh). Diaphragm
Bottom
Assembly
with
(8g)
insert
and
Housing
vacuum Diaphragm
Assembly.
m.
Install Ground Diaphragm and
n.
Install
p.
brass
q.
nut
Secure
Gasket
using
two filister
Secure
pan
head
r.
(8d,
Sc,
Install
Can
(7) 1-72 on INLET
(6)
between
Secure filister
Rubber head
s.
Install
new Bottom
Gimbal
t.
Install
Carbon
Seal
u.
Install
in No. v.
Install
w.
Fit
y.
Air
secure
and 3-48
(See
x.
Bumper screw No.
paragraph x
Loosely Ring
with
to
and
Screw Plate
to
No.
(Sa).
Bottom x
Housing
4-40
No.
Bottom
x
Housing
Bottom
Adjustment in 8b)
3/8.
two
using
Housing
1/8.
Bottom Housing, and OUTLET ports. (4j) 3-48
to
centering
with
Ring
Gimbal
x 5/16.
Bearing
(4i).
(4h).
Balance step u
3-31,
Weight(s)
with
removed
(4g)
pan
head
screw(s)
3/16.
Balance Rotor Figure
and
and Plate head screws
(8e)
Pivot Bottom screws No.
nameplate
between
(8f)
Terminal,
Solder
6-32
o.
Strip Assembly.
and 4-9
assemble one
inserted
through
Rainbow. assembled
in
Screws
No.
6-32
(4e
Housing into Assembly for correct orientation.)
and
4f). Gimbal
Ring.
Rainbow Gimbal Erector (4c) to 2-64 head No. screw x 5/16 in Gimbal lower hole and Ring Rainbow will be completely ab below.
pan
Erector step
and align (4b) with and Insert Air Pivot Rotor Assembly (Rotor and Housing Air Housing Bearing Secure Air Pivot to Gimbal three side). Ring using screws No. 0-80 flat head x 3/16.
Page
3-42
685304
Section
z.
pivot
Install
screw
in
Ensure Bearing.
Gimbal Ring. Assembly Housing
5/16
No.
(4a)
screw
and
32
-
III
engages
locknut and
Rotor
NOTE
two
The
sizes. correct aa.
and back
to
screws
ac.
Secure
other steel
Balance
ae.
Insert
spacer
af.
Insert solder
to
Secure
Coil
each
on
on
(5c)
to
to
the
Dial.
x
Gimbal Ring (This
Gimbal 5/16.
assembly
side screw
of
removed
(3)
terminals
as
Rotor
in
Assembly 3-31
Top
Top
m.
step
and
Housing
3-12.
Figure
using
Housing
steel
pan
using
Housing
paragraph
to
one
Rainbow.)
Ring
through
wires shown
secure
Erector
gimbal x 3/16.
in
Assembly (2g) stainless head,
and
and steel
pan head, steel is also used to
to
and
Ring
(5a
head,
x above.
step
Dial 3-48
No.
pan
Ring
the
in
Brackets
using screw
of
installed
different determine
4-9
secure Support Dial of Dial two using 2-56 x 1/8.
Assembly
Coil
filister
Figure
of
Gimbal 3-99).
(paragraph
ag.
to
Dial Install Dial of side 2-64 screw No. complete the screw Tighten
head, ad.
No.
are
Brackets
Support
position
Install 5b)
ab.
Dial Refer
screws
four
x
1/64
No.
1/8.
ah.
Solder
as
Gyro
in
shown
ai.
Install
new
Bearing
aj.
Install
Top
Pivot
ak.
Position Hub and
screws al.
Install
am.
Holding Vane
and
in
(2f)
Top
through
(2e)
two gaskets Gimbal Top Screw
Top
terminals
Housing
3-12.
Shim (2d) on (2c) to Top 0-80 No. x 1/8.
position
to
Assembly
Cable
Figure
Housing. Top
Housing
Bearing.
and secure Top Housing four with flat Housing
Pulley
head
(2b).
and Housing
Assembly
Rotor
on
Housing Gimbal Ring (2a).
in and
one hand, assemble
Page
3-43
Section
68S304
III
NOTE excessive or movement binding of For excessive add movement, spacers (3) as to eliminate necessary movement. For remove as binding, shims, to obtain rotation smooth of necessary, Top without excessive movement. Housing Check Top
an.
for
Housing.
and Housing
Install Bottom
secure
using
Top four
(2) to 4-40 No.
Housing Assembly head screws pan
x 1-7/8. CAUTION When
care by
the
performing avoid the use of components.
to
steps damage excess
TOP HOUSING ASSEMBLY
ao
to
and Diode
solder
ap below, Transistor and or overheating
take of
GREENAVHITE VIOLET GRAY/WHITE GYROCABLE ASSEMBLY
.
SLAVING COIL-
SLAVING COIL-START SLAVING COIL-
FINISH
CENTERTAP
Figure
3-12.
Gyro
Element
Assembly
Wiring
Page
3-44
III
Section
685304
ao.
Set
on ap.
aq.
ar.
in
(la) Diode sides both
Transistor align
Holding visually Transistor Position Diode clears
of
to Vane Assembly the Vane.
Install Pulley
and
Diode support.
Assembly
tweezers
with
(1b)
transistor terminal posts. and
Screw
support
Diode.
Assembly
such
is
that
head
when
Transistor
support
Assembly
pan
sink) Solder
installed,
Diode
three
solder
(heat
with
(1)
and secure Hub using
and
Support
screws
to 1-72
No.
x 3/16. as.
3-76A.
Perform Procedures
a.
b.
Install dot as Install
two
3-76B.
Bar shown
Slip-Ring
d.
Install
Rotor
b.
c.
as
Bottom
(6)
terminals
to
the
(11)
with
shown.
to
Refer
to
Gimbal
Figure
to
4-10A) Figure screws (13,
screws
(19 (13)
Gimbal 4Figure
and
Ring
secure
e.
Install
Rotor
f.
Install Bearing Retainer (4), on Gimbal and secure (7) with two screws (16). pivot screw
screws and
Housing
screw (23)
(10) after
to
and 20) and epoxy
Adjustment
set
with
secure
two
Weight(s)
with
secure
Install
and
as
ASSEMBLY.
-
Install
with
10
(5).
d.
g.
to
(15).
Balance
Attach
item
epoxy
using
Bearing
Bumper
Refer
ASSEMBLY.
-
follows:
Pivot (5, secure with
Rubber
screw
Balance
3-11.
wires Housing
and
Attach
and
proceed
GIMBAL ASSEMBLY proceed as follows:
Attach Bottom 10A).
with
ASSEMBLY
pivot (4) and slip-Ring 2-56 F.H. screws, x 3/16
Solder
a.
HOUSING
Magnet (9) in Figure
c.
(ELECTRIC) 4-9B and
3-104
(paragraph
ROTOR (ELECTRIC) 4-10A and Figure
Dynamic Drift and 3-105).
and
Static
(17)
to
Gimbal (2)
Assembly
into setting
Gimbal (21).
(5),
two
Ring
Ring.
onto
Gimbal.
and Brush Block screws (14) and
Gimbal
bearing
and end
Page
secure play.
3-45
68S304
Section
h.
i.
Support Dial Install with two secure and
Install
screws 3-76C.
(ELECTRIC) 4-9A Figure
(12).
(3) on Dial (13 and 14).
Gimbal
(1)
GYRO
ASSEMBLY as follows:
and
assemble
Cylinder
b.
Install
Spacers
c.
Install Assembly
Gyro
Cable
Install
Bearing
f.
Install
Top
g.
Install
Shim
h.
Install Housing
Pulley Assembly
i.
Install
Gasket
j.
Install
Bearing
k.
Hold Housing
Install four
m. n. o.
(AIR)
and
on
Housing
Top
Coil
two
Refer
to
Housing
wires
Assembly
Assembly.
(6).
(7) and (10) (18)
in
and secure onto
Retainer
with Pulley
(7).
Top
Housing
into
one hand and secure
Housing and Capsule
and with
Assembly Bottom
onto
(8)
screws
four
Top (10).
Assembly.
into
install
Vane
Heading
and
Top (11).
into
Gimbal Secure
(1).
with
(17).
Install
Block
(7,
Brush (32)
Cover
(34)
and
secure
Install
with
Top (20).
screws
(9) Assembly screws (15).
Capsule (36).
the
into
(19)
four
Slip-Ring Gyro Install with three and secure
Assembly
(3)
(14).
Top (2)
screws
ASSEMBLY.
-
Dial
(18).
Pivot
Gimbal Assembly
Cylinder
secure
and
Assembly
terminals
solder
to
9)
(2).
Assembly secure with
Coil
and
Solder
and
(12).
e.
1.
3-77.
ELEMENT
Install
to
(8
screws
a.
d.
Brackets
III
Brush
Figure
onto
4-9B)
Pulley
onto
(7)
Bottom
(1).
Bottom Bottom
and Shim with
GYRO ELEMENT ASSEMBLY INSTALLATION. Gyro Element Assembly proceed as follows: -
(33)
two To
onto screws
install
Page
3-46
68S304
III
Section
CAUTION
damage to Circuit Board 81B107 board that board wiring, make sure out of way during Gyro installation.
To avoid circuit
rotated a.
in
and
secure
cap
screws
c.
Route
Gyro
Belt
d.
Install (Do not
e.
f.
g.
Brush Mounting Gyro Chassis using and 4-40 No. 3/8. x
to
4-2)
around
Pig
internal
Tail
Locate
of
to
3-75).
and
one binder
cable head
Board
(81B107)
(10,
two binder
with
(Figures
81B107
applicable).
Board
Plate
socket
Hub.
using
Gyro
Circuit
as
3-8,
or
(14,
two
time.)
lockwasher
4
Blocks
x 3/16.
Circuit
Secure Bottom 1/4.
one
front
(paragraph
this to
Cable
leads
Gyro 3-7,
at
No.
4-40
No.
and
Bracket
Cover
Secure
Pulley
Gyro
Tensioner
Belt
install
clamp, screw Solder 3-6,
with
Gyro.
Install Figure head,
b.
in
4-2)
Gyro
and
socket screw NSD)
is
Element (15, Figure Assembly secure Gyro to Chassis loosely 4-40 cap screw No. x 3/8. head, left (looking forward hole from in
Install NSD
and
head
4-2) Figure 2-56 screws No.
to
NOTE
If necessary, (step b above) so Assembly
Brush Blocks loosen Mounting and Circuit Board Brush adjust that center on their brushes Diode slip rings on Assembly 4-9). After adjustment, Figure
respective
h.
Support
(1,
secure
assembly
Install over
tape i.
Solder (8d,
j. 3-77A.
to as
Figure follows:
place.
two-inch
strip exposed surface with lacing cord Gyro Figure
Install
(ELECTRIC)
in
Vacuum 4-9).
GYRO
4-2
ELEMENT
install
pressure
tape
sensitive and
Circuit
secure
Board
(two places).
Switch
(paragraph
Cover
of of
lead
to
solder
terminal
3-59).
ASSEMBLY INSTALLATION. the Gyro Element Assembly
Refer
-
proceed
Page
3-47
x
68S304
III
Section
CAUTION
damage to Circuit Board 81D715 board wiring, make sure that board out of way during Gyro installation.
To avoid circuit
rotated a.
Element (15A, Gyro Figure Install Assembly secure to Chassis NSD and loosely Gyro 4-40 cap screw No. x 3/8. socket head, from in forward left hole (looking screw NSD) in Gyro.
b.
Install Figure head,
4-2) to screws cap
Route
Gyro
c. d.
f.
g.
secure No.
Tail
Secure
Pig
internal 4-40
Pulley
(14,
two
socket
Hub. 3-75).
time.
to Gyro lockwasher
4
and
(paragraph
Bracket
this
Cable
No.
one
using and
cable head
binder
x 3/16.
to
Gyro
leads
Secure
Circuit
Bottom
Plate
Board with two
Solder 3-6).
Gyro
at
Cover
4-2) in with one Locate front of
x 3/8.
Tensioner
clamp, screw
No.
4-40
around
install
not
and
is
Blocks
Mounting Gyro using
Brush
Chassis
Belt
Belt
Install Do
e.
and
and
Board
Circuit
(Figure
81D715
4-2) (10A, Figure 2-56 head screws No.
(81D715) binder
to x
1/4.
CAUTION loosen Brush If Mounting necessary, and adjust Board (step b above) Circuit so that on brushes center Assembly slip-Ring rings respective slip on Gyro 4-9A). After adjustment, (Figure in place. assembly h.
Install
over
tape i.
strip exposed surface with cord lacing
Solder
bottom
j. 3-78.
two-inch
Install
wires to capsule.
Brush
of
of
a.
PCBA
secure
tape
sensitive Board and
secure
Block
(35,
4-9A)
Figure
on
of
(paragraph
Cover
3-59).
BELT PULLEY ASSEMBLY Belt Timing Pulley Assembly
Install Transformer
their
(two places).
TIMING
the
pressure Circuit
Blocks Brush
Pulley
Gear
(16b,
-
Install
INSTALLATION. as follows: Figure
4-2)
on
synchro
Shaft.
Page
3-48
b. c.
Install
d.
Guide
Belt
three
Brush
paragraph
adjustment
INSTALLATION. proceed as follows:
BLOCK ASSEMBLY Block Assembly
Gear
Pulley 3/32.
x
Transformer 3-96).
Control
in
steps
to
4-2) 0-80
Figure screws No.
head
Synchro
(applicable
Gear.
Pulley
(16a,
flat
Perform
BRUSH
on
Belt
Slaving
Secure
with
3-79.
III
Section
68S304
the
install
To
-
CAUTION
the
Handle
care
to
prevent
Solder
b.
Carefully Assembly
Brush
engage Figure
(6,
with
Assembly
to
damage
to
leads
a.
Block
Brush
the
3-13).
(Figure
Block
on
brushes 4-11)
extreme
brushes.
Rotor
Slip
Ring
rings.
slip
NOTE
shims in step c below are used to ensure alignment proper of the brushes on the slip rings. Add or subtract as required shims for proper position and engagement of brushes. The
c.
d. 3-80.
Brush
Secure
Block binder Install
BEARING Install
Gyro
removed
in
1-72
No.
Center
two
and
3-77).
(paragraph
BRACKET ASSEMBLY Support Bracket
Mounting 3-33
paragraph x 5/16.
Assembly
Element
SUPPORT
the
to
Assembly
Block
shims screws
using head
INSTALLATION. as Assembly
-
Bearing
follows: a.
Secure
Bracket b.
c.
d.
Bearing
(2a,
using
flat
4-3) Figure head screw No.
Secure Bearing Support 4-3) to Chassis using on one side x 1/4 and, internal No. x 1/4, 4 4-40 on the other side.
Install (applicable
and
Course
steps
install
cover.
Perform (paragraph
Synchro 3-96).
Control
2-56
Support Bearing x 3/16.
Bracket
Figure Assembly (2, 2-56 No. head screws 4-40 one flat No. head screw nut No. and hex lockwasher,
two flat
Card
in
to
Set
paragraph
Transformer
shaft 3-70).
null
Assemblies not Do
adjustment
Page
3-49
685304
Section
THRU-1220 NSD P/N 52D137-1020 AND 52D136-0010 THRU
\
/
I
GREEN ORANGE vloLET BROWN BLUE
C
-1220
[¯
C C O Ol
GRAY
NSD P/N 52D137-1332, -1333,
AND NSD FYN52DI89 -2331
-2334
(
)/
Q
C C C
C C
Figure
3-13.
Brush
III
Block
Assembly
RED --BLACK GREEN ORANGE
VIOLET BROWN BLUE GRAY
Wiring.
Page
3-50
SECTION
68S304
3-81.
FINISHED
COMPASS
is
installed
a.
Apply
to
as a
Install
c.
d.
e.
and on 2-56
4-4) No.
Install
and
secure
Mask
using
Install
and Mask
Perform
g.
After
NSD
Install
R/L binder
(1,
-
refer
4-4) 0-80
to
No.
4-4) 0-80
to
No.
Figure
screw
Compass
x
x
3-93).
adjustment,
Card 3-66).
(paragraph
Pot
x 1/16.
(paragraph
(paragraph
Cover
Figure
Figure
setscrews
Heading
screw
head
(4,
to
(2,
adjustment
Card
Card
and
4-4)
three
0-80
Pointer
binder
Card
equivalent)
4-4) No.
Tail head
R/L
using
ASSEMBLY Assembly,
Shaft|Meter
(or
using
screw
Compass
Figure Assembly.
Compass
Figure
head
completion of Bezel Assembly
SHAFT/METER as
(3,
secure
Compass
install
3-82.
Bug binder
with
Center 1/16.
f.
h.
secure Finished Drum Assembly
Center x 3/32.
Center 1/16.
The
of Versilube of Washer Wave (5, Washer on Center Drum
Heading
Secure Assembly
INSTALLATION.
-
amount
small sides Wave
both
install b.
CARD follows:
III
3-59).
the
assemble
To
ASSEMBLY. to Figure
4-11
proceed
and
follows: CAUTION Handle
Shaft|Meter
to avoid assembly. a.
damaging
Secure
Rotor/Slip
Bracket hex head
using screws
Assembly
with
extreme
delicate
parts
of
Ring
two
internal 2-64
No.
Assembly No. x 3/16.
care exposed
(6)
2
to
Meter
and
lockwashers
NOTE
other b.
52D137-1332, P/N perform steps b NSDs skip to step
NSD
For -2334,
To-From Install secure meter and 64
Meter
using
-2331 -1333,
thru
e
below.
For
and all
f. (5)
two
on Meter Support flat head screws
Bracket 2No.
x 1/8.
Page
3-51
III
SECTION
685304
c.
Install secure
Meter using
NAV
meter
(4)
two
on Meter Support head screws flat
and
Bracket No.
2-64
x
1/8.
d.
violet
Solder
green
and
To-From
to
leads
(GND)
Meter. orange
and
blue
to
leads
(GND)
NAV
Meter.
e.
Solder
f.
To-From NAV Meter on Meter Bracket (5b) and Install meter internal secure using two insulators, No. 2 2-64 screws lockwashers and two hex head No. x 3/16.
g.
orange
Solder
and
blue
(GND)
TO-FROM
leads
to
Meter
Bracket
Meter. h.
i.
Install secure and
the two binder yellow
Solder
the
Meter (3) on two spacers, using head screws No.
R/L
meter
and
brown
insulating 4-40 x 1/2.
to
leads
(GND)
and
washers
R/L
Meter.
NOTE
For
j. k.
P/N
52D137-1332,
perform
steps
NSD
-2334,
other
NSDs
Install using
two flat
and
Install using
to
skip
and
two
-1333,
step
secure head,
below.
k
For
and all
1.
Mask screws
Center
black
secure binder
-2331,
j and
R/L
Scale
to
standoffs
0-80
x 3/16.
to
(1)
screws
black
head,
(2)
No.
Center Mask 0-80 No. x
1/16.
1.
3-83.
R/L Scale assembly screws No.
Install secure black
SHAFT/METER Shaft/Meter a.
Remove
ASSEMBLY Assembly,
b.
After
thoroughly (or
sealant clean
0-80
Mask using
proceed
as
securing
to
(1)
two
and binder
(2)
and head,
x 1/16. INSTALLATION.
-
sealant
Potentiometers 3-14). Figure
on Center standoffs
to
their has
those
To
Course
respective been areas
the
install
follows: and assemblies
completely
with
Heading
(see
removed, Chlorothene-NU
equivalent).
Page
3-52
SECTION
68S304
III
CAUTION
Handle Shaft/Meter avoid damaging assembly.
c.
into
4-4)
d.
install
Carefully
small sides
install
e.
Assembly
Figure
(11,
Assembly.
amount Versilube (or of equivalent) 4-4), Figure of Wave Washer (9, and Washer Course Pot and Assembly (8, Shaft on Ring and Rotor/slip secure 3-48 two setscrews No. x 3/32.
Wave 4-4)
Figure assembly
extreme care of exposed
parts
Shaft/Meter
Drum
Center
a Apply to both
with
Assembly delicate
to
with
amount a small surfaces mating Block. Center Mounting
of of
Apply
to
Versilube
(or
equivalent) Assembly
Pot
Course
and
CAUTION
Install avoid f.
Center
Install Block
by hole
with g.
assembled engaging
in Clutch
and
h.
Install
i.
Install 4-3)
Center
No.
on
of
Course
Pot
(4,
Figure one
Assembly assembly
Actuator
Clutch
Bearing
Spring
(3,
Mounting Assembly
Center
with
Support Bracket 3-80 step except
(paragraph
to
care
Section
collar block. mounting
Actuator secure the 2-56 x 1/4.
Install Chassis
screw
with extreme Assemblies.
Section Brush
to
damage
Figure
Assembly d).
in
4-5)
flat
head
4-5).
Figure
(2,
CAUTION
j.
Handle
Brush
damage
to
Carefully
(1,
Figure
with
Block
the
fragile
engage 4-3)
extreme care wires. brush
brushes
with
Rotor/Slip
of
Brush Ring.
to Block
avoid
Assembly
NOTE The
proper rings. proper
shims in Step e below used are to ensure alignment of the brushes on the slip Add or subtract for shims as required position and engagement of brushes.
Page
3-53
68S304
III
SECTION
k.
Brush
Secure
using head
Block binder
Block Center to Assembly 3-33 shims removed in paragraph 1-72 screws No. x 5/16.
Mounting and two
CAUTION Handle
breaking components.
circuit or
to
with
board
care damaging
otherwise
avoid and
wires
1.
Circuit Board to one side Rotate 81C81 or 81D460 secure Bearing Support Bracket and Assembly (1, 4-5) to Chassis two internal Figure No. using 6 6-40. lockwashers and two hex nuts No.
m.
Install and 6,
n.
o.
Clutch Figure
Install
Course
steps
3-70,
p.
q.
Install excluding
a
Pot Assembly Assembly.
Heading Drum
Center
Compass
(7,
3-81
(paragraph
Card
installation).
and Card and b).
(paragraph
Assemblies
Shaft
Element
Gyro
3-77
(paragraph
Assembly
installation).
NSD Cover
the
Adjust
on
Finished NSD Cover
Install excluding
and
Washer
4-4)
Bearing
Bracket
Support
(installed in step marks on the index on the index marks there is no binding
i
above
that
so
Compass
Card
Bezel
Assembly.
the
of
Assembly
the
East/West
with
align
Ensure
Center
Section
their that when
rotated. r.
Install
in s.
Perform
t.
Perform
u. 3-84.
Install
BEARING
Install follows:
and
steps
Adjustment
3-94). Transformer
Control
(paragraph NSD Cover
Potentiometer
Heading
(paragraph Synchro
procedure
(applicable
Assembly
3-62).
Course
procedure
Meter
Flag
G|S
paragraph
Null
Adjustment
3-96).
(paragraph
3-59).
SUPPORT ASSEMBLY BRACKET the Bearing Support Assembly
INSTALLATION. Bracket as
-
CAUTION
circuit Handle or breaking components.
board
otherwise
with
care
damaging
to wires
avoid and
Page
3-54
68S304
III
SECTION
a.
Circuit Rotate install and 4-5) No.
Figure
internal b.
c.
two
Loosen
to
Board 81C81 Bearing Support in Chassis 6 lockwashers
setscrews Ring
Rotor/Slip
Remove
Compass
Assembly
(applicable
Card
side (1,
two
using 6-40.
No.
Pot Assembly assembly.
Course
remove
one
Bracket
secure and nuts and hex
securing and
shaft
to
81D460
or
pot
in
steps
Paragraph
3-35).
d.
Remove
e.
sealant Remove Potentiometers
Heading
thoroughly g.
their
Course
and assemblies
respective
Heading
(see
has clean
those
been areas
completely removed, Chlorothene-NU with
equivalent). small sides
a Apply both to
install
Wave 4-4)
Figure
with
assembly h.
to
securing
sealant
After
(or
Assembly.
3-14).
Figure
f.
Pot
Versilube (or of equivalent) amount 4-4), of Wave Washer Figure (9, and Course Pot and Assembly Washer (8, Shaft on Rotor/Slip and Ring secure 3-48 No. x 3/32. two setscrews
a small amount surfaces to mating Center Mounting Block.
of of
Apply
Versilube
(or
equivalent) Assembly
Pot
Course
and
CAUTION
Install avoid
i.
Install Block
with
j.
Center
damage
by hole
Clutch
Chassis
and No.
Section Brush
with extreme Assemblies.
assembled Section Center engaging collar of in mounting block.
Install screw
to
Actuator
secure 2-56 x 1/4.
k.
Install
Clutch
1.
Install 4-3)
(paragraph
Bearing
the
Actuator
on
Spring
Support Bracket 3-80 except step
Pot
(4, with
(3,
Mounting
Center
Course
Assembly assembly
to
care
Assembly
4-5)
Figure
one
Figure
Assembly d).
flat
in head
4-5). (2,
Page
Figure
3-55
68S304
SECTION
HEADING POT
III
COURSE POT ASSEMBLY
ASSEMBLY
RTVSEALANT
Figure
3-14.
and
Course
Potentiometers
Heading
CAUTION
Handle damage
m.
Brush
Block fragile
to the
engage
Carefully Figure (1,
with
brushes of with Rotor/Slip
4-3)
to
extreme care wires. brush Brush Ring.
avoid
Block
Assembly
NOTE used n below to ensure The Shims in Step are alignment of on the the brushes proper slip Add or subtract shims as required rings. for position and engagement of brushes. proper n.
o.
Secure Block binder Install and 6,
Brush
using head Clutch
Figure
Block
shims screws
No.
Washer on
4-4)
to
Assembly
removed 1-72
in
Center
3-33
paragraph x 5/16.
and
Heading
Center
Drum
Pot
Mounting and two
Assembly
(7
Assembly.
Page
3-56
SECTION
68S304
p. q.
Install excluding
Finished
Install
Course 3-70,
installation).
NSD Cover
(paragraph
3-81
(paragraph
Card
Compass
III
and steps
Card
Set
a and
b).
Assemblies
Shaft
3-77
(paragraph
r.
Install excluding
s.
Bracket Adjust the two Bearing support adjustment 4-5) Figure studs (la, to position Center Section that the 90/270 degree marks on Compass Card so 90/270 with degree index marks on align Bezel Make sure belt is properly Assembly. shaft engaged the proper amount of tension. and has
t.
Adjust
Element Assembly NSD Cover installation).
Gyro
the
Bearing
Bracket
Support
Assembly
(installed in step 1 above) so that the East|West on index marks the Compass Card with align the on the Bezel index marks Ensure Assembly. that there is no binding Center section the when of rotated. u. v.
Install steps Install
paragraph w.
Board
Circuit
in
Install
paragraph G|S Meter 3-62.) Bottom
81D460
or
81C81
(applicable
3-71).
(applicable
Assembly
in
steps
(applicable
Plate
in
steps
paragraph
3-61).
x.
Compass 3-93).
Perform
(paragraph y. z.
Perform
3-85.
Install
BRUSH Assemblies a.
3-94).
Cover
ASSEMBLY as follows: -
leads
as
shown
Handle avoid
Brush
damage
to in
Adjustment
Potentiometer
Null
Transformer
Control
(paragraph NSD
Solder
5)
Heading
Synchro
procedure aa.
and
(paragraph
Course
Perform
procedure
procedure
Adjustment
Card
Adjustment
3-96).
(paragraph
3-59).
Install
INSTALLATION.
Brush Figure
Assembly
(2a
or
Brush
2b,
Figure
care
to
4-
3-15.
CAUTION Assemblies with to fragile brush
extreme wires.
Page
3-57
68S304
SECTION
III
NOTE After
installation
adjust
brushes against
tension b.
c. 3-86.
Brush Install Assembly in 4-5) Figure and secure (2c, flat No. 2 lockwasher, head 2-56. and hex nut No.
(paragraph
Cover
Install
Synchro hole
Insert
through b.
and
Install 5)
to
c.
No.
0-80
Synchro
Secure
e.
Install steps
f.
g.
h.
in
Timing paragraph
Figure
Install
Install Motor
To install follows: 4-5)
Figure
(6b,
4Figure (6a, Transformer three using binder and head screws Bracket
to
Bracket 3-48 x
Pulley
using
Chassis
5/16.
(applicable
Assembly
to
(7b,
TB1
4-3)
Figure
as
3-9).
Synchro
Board
81B107
Plate
using
or
81D715
(10,
Figure
two
binder
head
screws
strip of pressure of Board Circuit cord (two places).
Control
sensitive and secure
null
Transformer
tape in
adjustment
3-96).
(paragraph
Cover
GEAR MOTOR ASSEMBLY as follows: Assembly
a.
as
3-78).
a two-inch exposed area with lacing
(paragraph i.
Belt
leads
Synchro
in
Perform
proceed
lockwashers
screws
Circuit Secure 4-2) to Bottom 2-56 x 1/4. No.
Install over place
No.
INSTALLATION.
-
Mounting Control
Mounting No.
head
Solder
shown
O
Bracket
internal 2-56 x 3/16 an
using
x 1/8.
two flat d.
secure
Mounting
brush screw
Transformer
Control Chassis.
Synchro
internal No.
in
Brush
and
3-59).
TRANSFORMER CONTROL SYNCHRO Control the Synchro Transformer,
a.
3-87.
of Brush Assemblies, alignment proper associated rings. slip for
Synchro
(7c,
Figure
-
3-59).
INSTALLATION.
Clamps 4-5).
(7a,
Install
Figure
Motor
Gear
4-5)
on
Gear
Page
3-58
SECTION
68S304
III
\
VIOLET
ORANGE/WHITE YELLOW/WHITE GREEN/WHITE BLUE/WHITE
O o
O BLUE WHITE BROWN/WHITE
I
VIOLET
o
BLACK/WHITE
Figure
b.
Solder
d.
Secure 4-2)
No. Install
over
place f.
Brush
Motor Insert Gear motor and secure flat lockwashers, 3-48. No. hex nuts
c.
e.
3-15.
Install
leads Circuit
to
Bottom
2-56
x 1/4.
to
Wiring
4-5) Figure through Chassis clamps using two internal No. 3 3-48 head screws No. x 5/16 and (7b,
to
Gear
Board Plate
a two-inch exposed area with lacing Cover
Assembly
Motor
(White/Red
81B107 using
strip of of Circuit cord (two
(paragraph
or
81D715 binder
two
pressure Board
to
(+)). (10,
Figure
head
screws
sensitive secure and
tape in
places).
3-59).
Page
3-59
68S304
3-88.
ASSEMBLY
PULLEY Assembly
a.
Pulley Install Assembly secure two using and screws binder head No.
b.
Apply
c.
d.
e.
thin
a
washer
mica
Figure
4-6).
Secure 2) to x 3/16
Circuit Chassis
and
Install
a.
head
the
Route
c.
Solder
d.
two Loosen to Rotor/Slip
f.
Remove
Heading
g.
sealant Remove Potentiometers 3-14). Figure
a both
install Figure
assembly
small sides Wave 4-4)
with
Gear
(6,
4Figure 2-56 No. x 5/16.
(9,
screws 4-40
No.
3-4;
and
proceed
Internal two using
the
install
To 3-16,
Figures
into
3-17,
as
or
follows:
Cable
Assembly
binder
the
head
screws
shaft
and
remove
Pot
Assembly.
to
their
securing
has
those
Pot
pot
and
Course
been
areas
assemblies
completely
with
Assembly
assembly.
in
steps
respective
(+)).
to
Course
(applicable
Card
Chassis.
(White/Red
Motor
securing
Ring
sealant clean equivalent).
thoroughly
to
or
setscrews
Compass
Apply
to
Assembly
to
leads
Remove 3-35).
i.
81D460
INSTALLATION.
-
refer
Chassis
Cable
e.
(or
side
transistor
head
screw
each
x 1/4.
b.
After
to
Chassis 4-5) and
3-59).
secure
on
and
two binder
on
3-42.
in
hole
(paragraph
and
#249
paragraph
81C81
ASSEMBLY CABLE Cable Assembly 3-2, 3-3, Tables
Install
in
Board
using one binder
Cover
Receptacle No. 2-56
h.
Pulley
4-5) Figure
Thermacote
with
INTERNAL 3-18;
Figure (12, (12, clamps 2-56 x 3/16.
film of removed
washer
mica
Align
Internal
Install
INSTALLATION.
-
follows:
as
of
3-89.
III
SECTION
paragraph
Heading (see
removed, Chlorothene-NU
amount equivalent) of Versilube (or 4-4) of Wave Figure and Washer (9, Washer Pot Assembly (8, and Course on and Rotor/slip shaft secure Ring 3-48 two setscrews x 3/32. No.
Page
3-60
SECTION
68S304
j.
Apply
to
a small amount surfaces mating
Center
(or
Versilube
of of
Pot
Course
III
equivalent) and
Assembly
Block.
Mounting
CAUTION
Install avoid k.
1.
Center
to
damage
Install Block with
by hole
Install
with
Brush
Assemblies. Center
Mounting Assembly
Pot
Course
Bracket Support 3-80 except step
to
care
on
assembled Center Section engaging collar of in mounting block.
Bearing (paragraph
4-3)
extreme
Section
Assembly
Figure
(2,
d).
CAUTION
m.
Handle
Brush
damage
to
(1,
fragile
engage
Carefully
with
Block
the 4-3)
Figure
care extreme wires. brush
brushes of with Rotor/Slip
Brush Ring.
to
avoid
Block
Assembly
NOTE Shims in Step used The are to ensure n below alignment proper of on the the brushes slip Add as required rings. or subtract shims for position and engagement proper of brushes.
n.
Secure
Block binder o.
p.
Install and 6,
Brush
using head
to Block Center Assembly 3-33 shims removed in paragraph 1-72 screws No. x 5/16.
Clutch
Washer 4-4) on
Figure Finished
Install excluding
and
Heading
Drum
Center
two
and
Pot Assembly Assembly.
(7
3-81
(paragraph and NSD
Compass Card Card Adjustment
Compass
Mounting
Cover
installation). q. r.
Install excluding
Gyro
Install
Brush 3-85).
t.
Install steps Adjust
Timing
in
paragraph
the
adjustment Center
two studs
Section
3-77
(paragraph
Assembly
installation).
NSD Cover
paragraph s.
Element
(applicable
Assemblies
Belt
Pulley
Assembly
steps
in
(applicable
3-78).
Bearing (la, so that
Support
Figure 90/270
Assembly 4-5) to
degree
Bracket
position marks on
Page
3-61
685304
III
SECTION
Card
Compass Bezel on properly
with
align
90/270
Assembly.
sure
Make
engaged
and
the
has
index degree marks shaft belt is proper amount of
tension. u.
the
Adjust
Bearing
Bracket
Support
Assembly
in installed step so that the 1 above East/West marks on the align index Compass with Card their marks on the index Assembly. Ensure Bezel that no there is binding of the Center Section when rotated. Board
v.
Install paragraph
Circuit 3-71).
w.
Install paragraph
G|S Meter 3-62).
x.
Install
Assembly
Plate
Bottom
(applicable
steps
in
(applicable
steps
in
81C81
(applicable
in
steps
paragraph
3-61).
y.
Perform (paragraph
z.
Perform procedure
Course
aa.
Perform procedure
Synchro
Install
NSD
ab.
(Rest
Compass 3-93).
Card
and (paragraph
of
Cover
Page
Potentiometer
Heading 3-94).
Control
(paragraph
procedure
Adjustment
Transformer
Adjustment
Null
Adjustment
3-96).
(paragraph
Intentionally
3-59).
Left
Blank)
Page
3-62
68S304
Section III
Table 3-2. NSD 52Dl37 From -To Wire List (Part No.'s From CD-111
TO 81C460 Circuit Board G/S Flag Meter Bracket G/S Flag Meter Bracket
1
2 3
G/S Flag Meter Bracket CD-132-32 CD-132-31 Circuit Board 81D460-10 Brush Block-3 Brush Block-7 Brush Block-5 Brush Block-8 Heading Pot Brush Assy Heading Pot Brush Assy Heading Pot Brush Assy Course Pot Brush Assy Slip Ring Brush Assy Slip Ring Brush Assy Slip Ring Brush Assy Slip Ring Brush Assy G/S Meter G/S Meter G/S Flag Meter Bracket G/S Flag Meter Bracket Brush Block-6 CD-132-8 Brush Block-4 CD-132-7 Brush Block-1 Brush Block-2 Vacuum Switch Circuit Board 81Dl07
4 7
8 11 and 12 15 16 17 18 19
20 21 22 23 24 25 26 27 28 29 30 31 31 32 32 33 34 35 36
From CD-111 A B
C D E F H
J K From CB Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board
81C460-1 81C460-5 81C460-9 81C460-2 81C460-7 81C460-6 81C460-3
-1332,
and
-1333)
FUNCTION Ground Internal Light Ground Internal Light Ground/28Vdc Internal/Light 14Vdc Nav. Flag (-) Nav. Flag (+) 14/28 Volts Rotor (A) Rotor (C) Left-Right (+ Left) Left-Right (+,Right)
Hdg/Course Ëxcitation Hdg/Course Excitation Heading Signal Course Signal Stator (E) Stator (D) Stator (G) Stator (F) G/S Up (+) G/S Down (+) G/S Flag (-) G/S Flag (+) Nav. Flag (+) (out of Nav. Flag (+) Nav. Flag (-) Nav. Flag (-) To-From (+) To To-From (+) From Gyro Valid (LO) Gyro Valid (HI)
TBl-4 TB1-1 TBl-3 81B107 81B107 81B107 TBl-5 TB1-2 81B107
Ct Rotor (C) Ct Stator (Y) Ct Stator (Z) Slaving Coil (Finish) Slaving Coil (+) Slaving Coil (Start)
Circuit Board/Brush Assy Circuit Board/Brush Assy Circuit Board/Brush Assy Gear Motor (+) Gear Motor (+) Circuit Board 81B107
7.6 Vdc (Ref) 14Vdc Gyro Error Motor Drive Motor Drive Jumper Ground
CD-132-1
COLOR
view)
Ct Rotor (H) Ct Stator (X) Slaving Coil (Center)
LENGTH
BLK ORN YEL
l1-3/4 12 12
GRN BLK RED RED GRN BLU VIO GRA WHT WHT/BLK WHT/BRN WHT/RED WHT/ORN WHT/YEL WHT/GRN WHT/BLU WHT/VIO WHT/GRA BRN RED BRN RED ORN BLK RED BLK YEL ORN
12 l 1 12-1/8
9-1/2 9-1/2 9-1/2 9-1/4 9-1/2 9-1/4 9-1/2 7-3/4
8-3/4 8-3/4 10
8-3/4 7-1/4
8 12 12
9-1/2 1
9-1/2 l
9-1/2 9-1/2 12 1/2 12 1/2
VIO BLK GRA BRN BLU RED ORN GRN YEL
10-7/8 10-5/8 10-5/8 10-3/8 10-3/8 10-5/8 10-5/8 10-3/8 10-7/8
BRN GRN WHT WHT/RED VIO
10-1/4 11 12
WHT/BLU BLK
8-1/2 9-1/2
11 l1-3/4
Page-3-67
68S304
Section III
TO From: Circuit Board 81C460-10 CD-132-11 & 12 Circuit Board 81B107 Circuit Board 81C460-6 Circuit Board 81B107 Gyro Vacuum Switch Circuit Board 81B107 Solenoid (+) Circuit Board 81B107 G/S Flag Meter Bracket Circuit Board 81B107 G/S Flag Meter Bracket Circuit Board 81B107 Gyro Circuit Board 81B107 Gyro Circuit Board 81B107 Gyro Circuit Board 81B107 CD-111-D Circuit Board 81B107 CD-l l l-E Circuit Board 81B107 CD-lll-F Circuit Board 81B107 CD-l l l-K Gyro Vacuum Switch Circuit Board 81Bl07 Gyro Circuit Board 81Bl07 Gyro Circuit Board 81B107 Gyro Circuit 81B107 Circuit Board 81C460-1 Circuit Board/Brush Assy CircuitBoard/Brush Assy CircuitBoard/Brush Assy Gear Motor (+) Gear Motor (-)
FUNCTION 14/28Vdc Jumper A+ A+ A+ A+ Start Finish Center Tap Slaving Coil (Finish) Slaving Coil (+) Slaving Coil (Start) Slaving Coil Center A+ Center Tap Start Finish 7.6Vdc (Ref)
COLOR RED WHT/BLU BLK BLU WHT/ORN WHT/BLK WHT/GRN WHT/GRA VIO BRN BLU RED YEL BLK VIO WHT/GRN WHT/GRA BRN
N/A N/A N/A 10-3/8 10-3/8 10-5/8 10-7/8 16-3/4 N/A N/A N/A 10-1/4
Circuit Board 81C460-5
14Vdc
GRN
11
Circuit Board 81C460-9
Gyro Error
WHT
12
Circuit Board 81C460-2 Circuit Board 81C460-7
Motor Drive Motor Drive
WHT/RED VIO BLK BLU WHT/VIO WHT/GRA BRN GRN ORN RED VIO BLK BLU GRA WHT/RED BLU VIO YEL BLU BLK WHT/RED WHT/BLK WHT
8-1/2 9-1/2 12-5/8
CD-132-1 Solenoid Circuit Board 81B107 CD-132-27 SS Meter CD-132-28 GS Meter Block-6 CD-132-31 Brush CD-132-15 Brush Block-3 CD-132-32 Brush Block-4 CD-132-33 Brush Block-1 Block-5 CD-132-17 Brush CD-132-34 Brush Block-2 CD-132-16 Brush Block-7 CD-132-18 Brush Block-8 Course Pot Brush Assy CD-132-22 Course PotBrush Assy Heading Pot Brush Assy Course Pot Brush Assy Heading Pot Brush Assy TBl-1 Synchro TBl-2 Synchro TBl-3 Synchro TBl-4 Synchro TBl-5 Synchro CD-132-19 Heading Pot Brush Assy CD-132-20 Heading Pot Brush Assy CD-132-21 Heading Pot Assy Course Pot Brush Assy Heading Pot Brush
Ground
$ssy
Ground
(+)
GS GS
(+) (+)
Up Down Nav. Flag (+) Rotor (A) Nav. Flag (-) To-From (+) To Left-Right (+) Left To-From (+) From Rotor (C) Left-Right (+) Right Course Signal Jumper Jumper Stator (Y) Stator (X) Stator (Z) Ct Rotor (C) Ct Rotor (H)
Heading/Course Excitation
LENGTH 12-1/8 11 16-3/4
24-1/8 20-1/2 21
24-1/8 7-1/4
8 9-12 9-1/2 9-1/2 9-1/2 9-1/2 9-1/2 9-1/2 9-1/4 7-3/4 4-1/2 4-1/2 N/A N/A N/A N/A N/A
9-1/2
Heading/Course
WHT/BLK
9-1/4
Excitation Heading Signal Jumper
WHT/BRN BLU
4-1/2
9-1/4
Page-3-68
68S304
Section III TO
From: Heading Pot Brush Assy Slip Ring Brush Assy Slip Ring Brush Assy Slip Ring Brush Assy Slip Ring Brush Assy GS Flag Meter Bracket GS Flag Meter Bracket GS Flag Meter Bracket GS Flag Meter Bracket GS Flag Meter Bracket GS Flag Meter Bracket
CD-132-23 CD-132-24 CD-132-25 CD-132-26 CD-132-29 CD-132-20 Circuit Board 81Bl07 Circuit Board 81B107 CD-132-2 CD-132-3
GS Flag Meter Bracket GS Flag Meter Bracket GS Flag Meter Bracket
CD-132-4 Light Tray Light Tray
GS Flag Meter GS Flag Meter GS Flag Meter GS Flag Meter GS Flag Meter Slaving Meter Slaving Meter GS Flag Meter GS Flag Meter Light Tray Light Tray
Light Tray GS Flag Meter GS Flag Meter Slaving Meter Slaving Meter GS Flag Meter GS Flag Meter GS Flag Meter (Resistor) GS Flag Meter GS Flag Meter GS Flag Meter
Light Tray TBl-1
GS Flag Meter Bracket Synchro
TBl-2
Synchro
TBl-3
Synchro CD-11l-C Synchro
Bracket Bracket Bracket Bracket Bracket
Course Pot Brush Assy
CD-11l-B
CD-11l-J TBl-4
CD-11l-A
TBl-5 *
Synchro
CD-11l-H
(Resistor)
Bracket Bracket Bracket Bracket Bracket
FUNCTION Jumper
Stator (E) Stator (D) Stator (G) Stator (F) GS Flag (-) GS Flag (+) A+ A+ Internal Light Internal Light Vdc Internal Light Internal Light Internal Light Vdc Internal Light GS Flag (-) GS Flag (+) (-) Indication (+) Indication (-) Indication (+) Indication GS Flag (-)
COLOR
LENGTH 4-1/2
VIO
Ground Ground/28
WHT/ORN WHT/YEL WHT/GRN WHT/BLU BRN RED WTH/ORN WHT/BLK ORN YEL
14Vdc
GRN
GRN N/A RED RED WHT RED WHT N/A
RED GS Flag (+) Internal Light Ground ORN Internal Light Ground/28 YEL Vdc Internal Light 14Vdc GRN YEL Ct Stator (Y) Ct Stator (Y) BLK Ct Stator (X) BLU Ct Stator (X) GRN Ct Stator (Z) BLK GRA Ct Stator (Z) WHT/RED Ct Rotor (C) Ct Rotor (C) VIO Ct Rotor (H) WHT/BLK Ct Rotor (H) ORN
10
8-3/4 12 12
20-1/2 21 12 12 12 A/R A/R
Ground ORN Ground/28 YEL 14Vdc
8-3/4 8-3/4
A/R N/A A/R N/A N/A N/A N/A N/A A/R A/R A/R
.
A/R N/A 10-5/8 N/A 10-3/8 N/A 10-5/8 N/A 10-7/8 N/A 10-5/8
Measured in Inches
Page-3-69
68S304
Section III
Table 3-2A.
NSD 52Dl89-()
From
-
To Wire List
FROM CD-132
TO
l i 2
81D715 Circuit Board 8 1D460-3 G/S Flag Meter Bracket G/S Flag Meter Bracket G/S Flag Meter Bracket CD-132-32 CD-132-31 Circuit Board 81D460-11 Circuit Board 81D460-10 Circuit Board 81D460-4 Circuit Board 81D460-8 Brush Block-3 Brush Block-7 Brush Block-5 Brush Block-8 Heading Pot Brush Assy Heading Pot Brush Assy Heading Pot Brush Assy Course Pot Brush Assy Slip Ring Brush Assy Slip Ring Brush Assy Slip Ring Brush Assy Slip Ring Brush Assy G/S Meter G/S Meter G/S Flag Meter Bracket G/S Flag Meter Bracket Brush Block-6 CD-132-8 Brush Block-4 CD-132-7 Brush Block-1 Brush Block-2 Circuit Board 81D715 Circuit Board 81D715 81D715 81D715 81D715 81D715 81D715 81D715 8 1D715 81D715 81D715 Circuit Board/Brush Assy Circuit Board/Brush Assy Circuit Board/Brush Assy Gear Motor (+) 81D715 Gear Motor (-) 81D715 Circuit Board 81D715 STAND OFF (-) CD-132-10 STAND OFF
3 4 7
8 10 11 and 12 13 14 15 16 17 18 19
20 21 22 23 24
25 26 27 28 29
10 31 31 32 32 33 34 35 36 A B C D E F H J K Circuit Circuit Circuit Circuit Circuit Circuit Circuit Circuit Circuit
81D460-1 81D460-5 81D460-9 81D460-2 81D460-7 81D460-6 Board81D460-3
Board Board Board Board Board Board
Board 81D460-11 Board 81D460-lo
FUNCTION Ground Ground Internal Light Ground Internal Light Ground/ 28Vdc
Internal/Light 14Vdc Nav. Flag (-) Nav. Flag (+) 14 Volts (only) 14/28 Volts Azimuth Reference Azimuth Rate Rotor (A) Rotor (C) Left-Right (+Left) Left-Right (+Right) Hdg/Course Excitation Hdg/Course Excitation Heading Signal Course Signal Stator (E) Stator (D) Stator (G) Stator (F) G/S Up (+) G/S Down (+) G/S Flag (-) G/S Flag (+) Nav. Flag (+) (out or view) Nav. Flag (+) Nav. Flag (-) Nav. Flag (-) To-From (+) To To-From (+) From Gyro Valid (Lo) Gyro Valid (Hi) Ct Rotor (C) Ct Stator (Y) Ct Stator (Z) Slaving Coil (Finish) Slaving Coil (+) Slaving Coil (Start) Ct Rotor (H) Ct Stator (X) Slaving Coil (Center) 7.6 Vdc (Ref) 14Vdc Gyro Error Motor Drive Motor Drive Jumper
Ground 14Vdc 14/28 Vdc
COLOR
LENGTH
BLK BLK ORN YEL GRN BLK RED BLK RED ORN YEL GRN BLU
6
VIO GRA WHT WHT/BLK WHT/BRN WHT/RED WHT/ORN WHT/YEL WHT/GRN WHT/BLU
l 1-3/4 12 12 12 l 1 12-1/4 12-1/8 11-1/8 11-1/8
9-1/2 9-1/2 9-1/2 9-1/4 9-1/2 9-1/4 9-1/2 7-3/4
8-3/4 8-3/4 10
8-3/4
WHT/VIO
7-1/4
WHT/GRA BRN RED BRN RED ORN BLK RED BLK YEL ORG
8
VIO BLK GRA BRN BLU RED ORN GRN YEL BRN GRN WHT WHT/RED
12 12
9-1/2 1
9-1/2 l
9-1/2 9-1/2 12-1/2
12-1/2 10-7/8 10-5/8 10-5/8 10-3/8 10-3/8 10-5/8 10-5/8 10-3/8 10-7/8 10-1/4 11 12
VIO
8-1/2 9-1/2
WHT/BLU BLK BLK RED
11 l1-3/4 12-1/4 12-1/8 Page-3-70
68S304
FROM Circuit ircuit Circuit Circuit Circuit Circuit Circuit Circuit Circuit Circuit Circuit Circuit Circuit
Section III CD-132 Board 81D460-4 Board 81D460-8 Board 81D715 Board 81D715 Board 81D460 Board 81D460 Board 81D715 Board 81D715 Board 81D715 Board 81D715 Board 81D715 Board 81D715 Board 81D715
Gyro Gyro Gyro Circuit Board /Brush Assy Circuit Board /Brush Assy Circuit Board /Brush Assy Gear Motor (+) Gear Motor (-) Solenoid
TO
CD-132-13 CD-132-14 Circuit Board 81D460 Solenoid (+) G/S Flag Meter Bracket G/S Flag Meter Bracket
FUNCTION
COLOR ORN YEL WHT/BLU BLU WHT/ORN WHT/BLK WHT/GRN WHT/GRA
LENGTH 11-1/8 11-1/8 11 24-1/8 20-1/2 21 N/A N/A N/A 10-3/8 10-3/8 10-3/8 16-3/4 N/A N/A N/A
Azimuth Reference Azimuth Rate Jumper A+ A+ A+ Start Finish Center Tap Slaving Coil (Finish) Slaving Coil (+) Slaving Coil (Start) Slaving Coil Center Center Tap Start Finish 7.6 Vdc (Ref)
WHT/GRN WHT/GRA BRN
Circuit Board 81D460-1
14Vdc
GRN
11
Circuit Board 81D460-1
Gyro Error
WHT
12
Motor Drive Motor Drive
WHT/RED
8-1/2 9-1/2
Ground
BLK BLU
Gyro Gyro Gyro
CD-111-D CD-111-E CD-lll-F CD-111-K Circuit Board Circuit Board Circuit Board Circuit Board
81D715 81D715 81D715 81D460-1
Circuit Board 81D460-1 Circuit Board 81D460-1 STAND OFF (+) Solenoid Circuit Board 81D715 CD-132-27 1S Meter CD-132-28 >S Meter CD-132-31 Block-6 Brush CD-132-15 Brush Block-3 Block-4 CD-132-32 Brush CD-132-33 Block-1 Brush CD-132-17 Brush Block-5 CD-132-34 Block-2 Brush CD-132-16 Brush Block-7 CD-132-18 Block-8 Brush Course Pot Brush Assy CD-132-22 Course Pot Brush Assy Heading Pot Brush Assy Course Pot Brush Assy Heading Pot Brush Assy TB1-1 Synchro TB1-2 Synchro TBl-3 Synchro TBl-4 Synchro TBl-5 Synchro CD-132-19 Heading Pot Brush Assy CD-132-20 Heading Pot Brush Assy CD-132-21 Heading Pot Brush Assy Heading Pot Brush Course Pot Brush Assy ssy eading Pot Brush Course Pot Brush Assy ssy
(+)
GS (+) Up GS (+) Down Nav. Flag (+) Rotor (A) Nav. Flag (-) To-From (+) To Left-Right (+) Left To-From (+) From Rotor (C) Left-Right (+) Right Course Signal Jumper Jumper Stator (Y) Stator (X) Stator (Z) St Rotor (C) Ct Rotor (H) Heading/Course Excitation Heading/Course Excitation Heading Signal
VIO BRN BLU RED YEL
VIO
VIO WHT/VIO WHT/GRA BRN GRN ORN RED
VIO BLK BLU GRA WHT/RED BLU
VIO
10-1/4
12-5/8 24-1/8 7-1/4
8 9-1/2 9-1/2 9-1/2 9-1/2 9-1/2 9-1/2 9-1/2 9-1/4 7-3/4 4-1/2 4-1/2 N/A N/A N/A N/A N/A
YEL BLU BLK WHT/RED WHT/BLK WHT
9-1/2
WHT/BLK
9-1/4
WHT/BRN
9-1/2
Jumper
BLU
4-1/2
Jumper
VIO
4-1/2
Page-3-71
Section III
68S304
FROM CD-132
TO
Slip Ring Brush Assy Slip Ring Brush Assy Slip Ring Brush Assy Slip Ring Brush Assy GS Flag Meter Bracket GS Flag Meter Bracket GS Flag Meter Bracket GS Flag Meter Bracket GS Flag Meter Bracket GS Flag Meter Bracket
CD-132-23 CD-132-24 CD-132-25 CD-132-26 CD-132-29 CD-132-20 Circuit Board 81D715 Circuit Board 81D715 CD-132-2 CD-132-3
GS Flag Meter Bracket GS Flag Meter Bracket GS Flag Meter Bracket
CD-132-4 Light Tray Light Tray
GS Flag Meter GS Flag Meter GS Flag Meter GS Flag Meter GS Flag Meter Slaving Meter Slaving Meter GS Flag Meter GS Flag Meter Light Tray Light Tray
Light Tray GS Flag Meter GS Flag Meter Slaving Meter Slaving Meter GS Flag Meter GS Flag Meter GS Flag Meter (Resistor) GS Flag Meter GS Flag Meter GS Flag Meter
Light Tray TB1-1
GS Flag Meter Bracket Synchro
Bracket Bracket Bracket Bracket Bracket
CD-11l-B
TB1-2
Synchro
CD-111-J
TBl-3
Synchro
CD-11l-C TBl-4
Synchro CD-lll-A
TB1-5
Synchro
CD-111-H
*
FUNCTION
COLOR WHT/ORN WHT/YEL WHT/GRN
Stator (E) Stator (D)
Stator (G) Stator (F) GS Flag (-)
GS Flag (+) A+ A+ Internal Light Ground Internal Light Ground/
LENGTH
8-3/4 8-3/4 10
WHT/BLU
8-3/4
BRN RED WHT/ORN WHT/BLK ORN YEL
12 12 20-1/2 21 12 12
GRN ORN YEL
12 A/R A/R
GRN N/A RED RED WHT RED WHT N/A
A/R N/A A/R N/A N/A N/A N/A N/A
RED ORN YEL
A/R A/R A/R
GRN YEL BLK
A/R N/A 10-5/8 N/A 10-3/8 N/A 10-5/8 N/A 10-7/8 N/A 10-5/8
28Vdc
(Resistor)
Bracket Bracket Bracket Bracket Bracket Bracket
Internal Light Internal Light Internal Light 28Vdc Internal Light GS Flag (-) GS Flag (+) (-) Indication (+) Indication (-) Indication (+) Indication GS Flag (-)
14Vdc
Ground Ground/ 14Vdc
GS Flag (+) Internal Light Ground Internal Light Ground/ 28Vdc Internal Light 14Vdc Ct Stator (Y) Ct Stator (Y) Ct Stator (X) Ct Stator (X) Ct Stator (Z) Ct Stator (Z) Ct Rotor (C) Ct Rotor (C) Ct Rotor (H) Ct Rotor (H)
BLU GRN BLK GRA WHT/RED
VIO WHT/BLK ORN
Measured in Inches
Page-3-72
Section III
68S304
3-90. ADJUSTMENTS 3-91. GENERAL.
The procedures contained in this part of the manual provide for adjustments required as part of NSD maintenance and overhaul.
3-92. All adjustments to the NSD are performed with the cover removed, therefore in order to minimize the possibility of introducing contamination to the interior of the instrument, these procedures must be performed in a clean room Whenever possible, the opened instrument and component environment. parts should be handled with clean gloves. 3-93. COMPASS CARD ADJUSTMENT. Whenever the Compass Card is removed from the NSD the following adjustment is required upon installation. a. Connect 479X-2 Resolver Zeroing Panel to Test Fixture Figure 3-19.
as shown in
b. Connect Test Fixture (Figure 3-20) to NSD. c. Rotate Course Selector Knob on NSD to obtain an electrical null (300 degrees). d. On Compass Card, loosen three setscrews. CAUTION Use clean nylon gloves while handling Compass Card to avoid transfer of oil or other contamination to Compass Card face. e. Rotate card to align the 300 degree index with the Course Pointer electrical null position.
f. While holding the Compass Card depressed against the Wave Washer (and without disturbing the alignment accomplished in step e above) tighten the three setscrews to secure the Compass Card in place. g. Recheck to ensure alignment of Compass Card and Course Pointer at 300
±1.0 degrees. h. Check the EZ by rotating the Course Selector knob clockwise towards 0 degrees and observe that output voltage is in phase with input voltage.
i. Disconnect 479X-2 Resolver Zeroing Panel from Test Fixture.
j. Disconnect Test Fixture from NSD. k. Complete installation instructions (see paragraph 3-81). 3-94. COURSE AND HEADING POTENTIOMETER ADJUSTMENT. Any time the Center Section is removed from the NSD, the following adjustment must be performed to ensure proper electrical alignment. a. Connect Test Fixture to NSD (Figure 3-20).
Page 3-73
Section III
68S304
b. Connect a 14 Vdc power supply to Test Fixture Terminals 19 (+) and 20 and apply 14 volts. c. Connect a VOM between Test Fixture terminal 22 and power supply ground (common).
d. Rotate Course Pointer to the heading reference index. e. Using a clean nylon glove, rotate Course potentiometer to obtain an electrical null on the meter.
f. To ensure proper electrical alignment, continue to rotate potentiometer clockwise and observe a negative voltage output on the meter. g. Return the potentiometer to the null position and secure in position using RTV 108 sealant around the area shown in Figure 3-14. h. Using Heading Selector Knob, rotate Compass Card to North heading
degrees).
(0
i. Using a clean nylon glove, rotate Heading potentiometer to obtain an electrical null on the meter.
j.
To ensure proper electrical alignment, continue to rotate potentiometer clockwise and observe a negative voltage output on the meter.
k. Return the potentiometer to the null position and secure in position using Figure 3-14.
1. Disconnect VOM from Test Fixture. m. Disconnect power supply from Test Fixture. n. Disconnect Test Fixture from NSD. o. Complete installation instructions (see paragraph 3-83).
Page 3-74
68S304
Section III
VTVM
VTVM
AMP
AC OUTPUT
OSCILLOSCOPE
INPUT
O
30 HZ FILTER
VERTICAL INPUT
RESOLVER
ZE ROING PANEL 479X-2
VOLT--
GO
REF
METER
REF 3D HZ OSCILLATOR
g
O
VAR
oO F
E
D
F
E
D
--
NOTE: NSD TE5T
-
FRONTPANELCONNECTORJS COLLINS PIN 357-4012-00 (OR EOUIVALENT)
EOUIPMENTSHOWN IN HEAVY LINES IS PART OF 479X-2
FIXTURE FIGURE 3-20
NSD
Figure 3-19. Test Setup For Course Resolver
Page 3-75
Section III
68S304 AMPHENOL 57-30360 14 VDC ONLY
14/28VDC
*
'
'
S1 GND 1 2 • 4
8
•
3
•
3
7
•
4 7
•
8
*
13•
13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
14* 15
•
17
•
16* 18* 19 20
•
*
21• 22· 23• 24 25• 26* 27• 28* 29•
30*
30 31 32 33 34 35 36
31• 32* 33• 34* 35e 36• NOTE: ALL WIRE TO BE 22 GA. MIL-W-5086A A e
Bo C
*
E
*
H K
D
•
F
•
J
•
• *
10 11 12 1 2
AMPHENOL
126-222 A B C D E F
H J K
Figure 3-20. NSD Test Fixture Page 3-76
ToCD132 or CD-106
/
To CD-111
,
Section III
68S304
3-95. 81C81 or 81D460 CIRCUIT BOARD ASSEMBLY ADJUSTMENT. This paragraph contains adjustment procedures for the 81C81 Circuit Board This adjustment is mandatory on replacement of the Circuit Assembly. Board and should be performed during periodic maintenance and overhaul. a. Connect Test Fixture (Figure 3-20) to NSD. b. Connect 14 Vdc power supply to Test Fixture switch S1 and terminal 1 (GND). c. Connect a VOM to Test Fixture terminals 14
(+)
and 13.
d. Set switch S1 to on. e. Allow NSD to stabilize.
f. Prevent the Motor Gear (7b, Figure 4-5) from rotating using a pair of snap ring pliers (or similar) inserted in two holes in top of gear. g. With the Motor Gear held in place, displace the NSD 10 to 20 degrees to the right and adjust R11 on Circuit Board 81C81 for a minimum output voltage. h. Repeat step g above with the NSD displaced to the left.
i. Set switch S1 to OFF.
j. Disconnect VOM from Test Fixture. k. Disconnect power supply from Test Fixture. l. Disconnect Test Fixture from NSD. m. Complete installation instructions (see paragraph 3-71). 3-95A. (Electric) 81D715 Circuit Board Assembly Adjustment. This paragraph contains adjustment procedures for the 81D715 circuit board assembly. The adjustment is mandatory on replacement of the circuit board and should be performed during periodic maintenance and overhaul. Refer to Figure 4-8A. 3-95B. TEST EOUIPMENT REQUIRED. The following test equipment is required to satisfactorily perform the rotor speed and low voltage adjustments.
a. Test Fixture (Figure 3-20) Test Box Century Flight Systems, Inc. b. Strobotac or equivalent. c. Power Supply, Variable 0-30 Vdc.
3-95C. PROCEDURE. a. Set VOLTMETER Function to 28 Vdc variable. b. Set VOLTMETER
Range to 50 volts.
Page 3-77
Section III
68S304
c. Set 28 Vdc to OFF and Power to ON.
d. Adjust VARIABLE VOLTAGE to 27.5 Vdc. e. Turn Rl3 on inverter and speed sensor PCB fully counterclockwise.
f. Set 28 Vdc to ON. g. Using a Strobotac to monitor rotor RPM, adjust R9 for the gyro flag to move out of view at 17,000 RPM. h. Adjust the VARIABLE VOLTAGE to 19 Vdc. Adjust Rl3 until the gyro flag just goes out of view.
3-96. SYNCHRO
CONTROL TRANSFORMER NULL ADJUSTMENT. The Synchro Control Transformer null adjustment must be accomplished any time the Center Section has been removed from the NSD.
3-97. TEST EQUIPMENT
REQUIRED. The following test equipment is required to perform the null adjustment. satisfactorily NOTE The use of any test equipment other than listed below may produce unsatisfactory test results.
a. VTVM. b. Signal Generator, Hewlett Packard 8660C, or equivalent.
3-98. PROCEDURE. a. Set heading index to 0 degrees.
b. Connect leads from Signal Generator to NSD connector CD-111 pins A and H. c. Connect VTVM leads to NSD Connector CD-lll
pins B and J.
d. Loosen three setscrews securing the Timing Belt Pulley Assembly (16, Figure 4-2) to Synchro Control Transformer (CT). e. Using a small screwdriver, turn shaft of CT clockwise until the VTVM indicates a null.
f. Jumper CD-111 pins H and Z and measure voltage across CD-111 pins J and A. VTVM should indicate approximately 6.2 VRMS. NOTE If VTVM indicates approximately 13.2 VRMS, CT is 180 degrees out of phase. Repeat step e above to obtain an indication of approximately 6.2 VRMS.
Page 3-78
68S304
Section III
g. While holding shaft of CT at the null position, tighten three setscrews on the Timing Belt Pulley Assembly. h. Disconnect all test equipment. i. Complete installation instructions.
3-99. BALANCING. 3-100. GENERAL. The Gyro functions efficiently only when the various components are accurately balanced. All balancing procedures should be accomplished with the Rotor and Housing Assembly and the Gimbal Ring properly mounted in their respective balancing fixtures. The surfaces used to support the fixture should be smooth and level.
3-101. After the Gimbal Ring and Rotor Housing Assembly balancing procedure has been accomplished (paragraph 3-103) the Gyro Element Assembly must be assembled (paragraph 3-76) and the complete Gyro assembly balanced on a Scorsby Test Stand (paragraph 3-104). 3-102. ROTOR AND HOUSING ASSEMBLY STATIC BALANCING. balance the Rotor and Housing Assembly, proceed as follows:
To properly
a. Mount the Rotor and Housing Assembly in a fixture that will allow freedom of rotation in the horizontal and vertical planes. NOTE During the balancing procedure a screwdriver handle or similar device should be rattled (vibrated) along the balancing fixture to assist in determining any imbalance.
b. Position assembly so that Rotor Shaft is in vertical position. The rotor should not move from this position. If the assembly falls one way or another, balance may be accomplished by changing the position of the adjustment screws and/or adding small pieces of lead tape to the top or bottom of the housing. NOTE Repeated trials of induced vibration, screw adjustment and the addition or subtraction of lead tape may be necessary in order to achieve the correct balance. c. Rotate the assembly so that the Rotor Shaft is in the horizontal plane and repeat the balancing procedure outlined in step b above. d. Recheck the balance in both planes and if necessary,
make any required
adjustments.
Page 3-79
68S304
Section III e. When it is determined that the assembly is balanced, apply a small amount of Glyptal on adjustment screws to prevent subsequent movement of the screws during vibration.
3-103. GIMBAL RING AND ROTOR AND HOUSING ASSEMBLY BALANCING. After the Rotor and Housing Assembly has been correctly balanced and assembled in the Gimbal Ring the whole assembly is balanced as follows: a. Mount the complete assembly in a fixture that will allow freedom of rotation in the horizontal and vertical planes. NOTE During the balancing procedure a screwdriver handle or similar device should be rattled (vibrated) along the balancing fixture to assist in determining any imbalance.
b. Position the Gimbal Ring (with Rotor and Housing Assembly installed) so that the Rotor Shaft is in the vertical plane. The Gimbal Ring assembly should not move. If the assembly falls one way or the other, balance may be accomplished by changing the position of the adjustment screws, by the addition or subtraction of balance weights (4g, Figure 49) and/or by the addition or subtraction of lead tape on the Gimbal Ring. c. Rotate the Gimbal Ring so that Rotor Shaft is in horizontal repeat the balancing procedure outlined in step b above.
plane and
d. Recheck the balance in both planes and, if necessary, make any required adjustments. e. When it is determined that the assembly is balanced, apply a small amount of Glyptal on adjustment screws to prevent subsequent movement of the screws during vibration. f. Complete Gyro Element Assembly procedures (paragraph 3-76). 3-104. (AIR GYRO ONLY) STATIC DRIFT BALANCE. The following procedure is performed on the completely assembled Gyro Element Assembly to "fine tune balance" the Gyro prior to installation in the NSD. a. Mount the Gyro Element Assembly in a suitable fixture attached to the Scorsby Test Stand so that Gyro dial is in horizontal plane.
b. Apply 4.8 inches Hg vacuum to OUTLET port on Gyro. c. Allow Gyro to run for ten minutes. d. After ten minutes, rotate test table so that Gyro dial indicates 0 degrees. e. Allow Gyro to run for fifteen minutes.
f. Note that dial drift is less than 5.0 degrees for the Slaved Gyro and 2.0 degrees for the unslaved.
Page 3-80
Section III
68S304
g. Rotate test table so that dial indicates 90 degrees. h. Allow Gyro to run for fifteen minutes.
i. Note that dial drift is less than 5.0 degrees for the slaved Gyro and 2.0 degrees for the unslaved. NOTE The procedure in step j below may have to be accomplished on a trial and error basis to reduce drift to the optimum level.
j. If dial drift in steps f and i exceed the allowable drift, add a small amount of lead tape to Rotor Housing and repeat steps b through achieve an optimum drift of 0.0 degree.
j
above to
k. Perform Dynamic Drift Balance procedure (paragraph 3-105). 3-104A.(ELECTRIC ONLY) STATIC DRIFT BALANCE. The following procedure is performed on the completely assembled Gyro Element Assembly to "fine tune balance" the Gyro prior to installation in the NSD. a. Mount the Gyro Element Assembly in a suitable fixture attached to the Scorsby Test Stand so that Gyro dial is in horizontal plane. b. Apply 26 Vac, 400 Hz (2d). c. Allow Gyro to run for ten minutes. d. After ten minutes, rotate test table so that Gyro dial indicates 0 degree. e. Allow Gyro to run for fifteen minutes.
f. Note that dial drift is less than 5.0 degrees for the slaved Gyro and 2.0 degrees for the unslaved. g. Rotate test table so that dial indicates 90 degrees. h. Allow Gyro to run for fifteen minutes.
i. Note that dial drift is less than 5.0 degrees for the slaved Gyro and 2.0 degrees for the unslaved. NOTE The procedure in step j below may have to be accomplished on a trial and error basis to reduce drift to the optimum level.
j. If dial drift in steps f and i exceed the allowable drift, add a small amount of lead tape to Rotor Housing and repeat steps b through j above to achieve an optimum drift of 0.0 degree.
k. Perform Dynamic Drift Balance procedure (paragraph 3-105).
Page 3-81
68S304
Section III
3-105. DYNAMIC DRIFT BALANCE. immediately following the Static assumed that the Gyro Element paragraph 3-104 or 3-104A, steps
This procedure is normally performed Drift Balance procedure, therefore, it is Assembly is configured as indicated in a and b.
a. Allow Gyro to run for ten minutes.
b. Rotate test table so that Gyro dial indicates 0 degrees and is 3 degrees in the horizontal plane. c. Turn on the test table. d. After ten minutes, turn off test table and return the table to the horizontal plane. e. Note that dial drift in either direction is less than 4.0 degrees for the slaved Gyro and 2.0 degrees for the unslaved. Record drift.
f. Repeat steps c through e above with dial set at 90.0, 180.0, and 270.0 degrees.
NOTE The procedure in step g below may have to be accomplished on a trial and error basis to reduce drift to the optimum level. g. Add the four drift indications and divide the total drift by four. If the average drift exceeds 4.0 degrees for the slaved Gyro and 2.0 degrees for the unslaved exceeds the allowable drift, add a small amount of lead tape to Rotor Housing and repeat steps a through g above to achieve an optimum drift of 0.0 degree.
3-106. FUNCTIONAL
TESTS
-
NSD.
3-107. GENERAL. The functional tests are divided into two categories. The in Tables 3-5, 3-5A, 3-6, and 3-7 are performed to Procedures Checkout ensure proper operation of the NSD and are used to locate a defective part of the unit in the event of a suspected malfunction of the NSD. They are also used after troubleshooting to ensure that the malfunction has been corrected. The Troubleshooting instructions in Tables 3-8 or 3-8A provide step-by-step procedures to isolate a malfunction to a specific area or component of the NSD and includes remedial action to be taken. 3-108. (AIR ONLY) TEST EQUIPMENT REQUIRED. In order to properly perform the functional tests, the following test equipment is required. a. 14-28 Vdc power supply.
b. Scorsby Test Stand capable of providing roll, pitch and yaw oscillations with an amplitude of ±3.0 degrees about each axis at a frequency of 5 to 7 Hz/minute. c. Mercury Manometer capable of indicating 6.0 inches Hg.
Page 3-82
68S304
Section III
d. External filter attached to Gyro air INLET line. e. Collins 479S-3 or 30 Hz Oscillator.
f. Stop watch. g. Collins 479X-2 Resolver Zeroing Panel. h. Turn Table capable of 54.0 ±1.0 degree tilt, 360.0 degree rotation.
i. NSD Test Fixture (see Figure 3-20).
j. VTVM. 3-108A. (ELECTRIC) TEST EQUIPMENT REQUIRED. In order to properly perform the functional tests, the following test equipment is required. a. 14-28 Vdc power supply. b. Scorsby Test Stand capable of providing roll, pitch and yaw oscillations with an amplitude of ±3.0 degrees about each axis at a frequency of 5 to 7 Hz/minute. c. Collins 479S-3 or 30 Hz Oscillator. d. Stop watch. e. Collins 479X-2 Resolver Zeroing Panel.
f. Turn Table capable of 54.0 ±1.0 degree tilt, 360.0 degree rotation. g. NSD Test Fixture (see Figure 3-20). h. VTVM.
3-109. CHECKOUT PROCEDURES. The checkout procedures in Tables 3-5, 3-5A, 3-6, or 3-7, ensure that the NSD is operational and are used to locate a The defective part of the unit in the event of a suspected malfunction. procedure must be performed in the sequence given. When an abnormal test result is obtained, the technician is referred to the troubleshooting instructions in Table 3-8 or 3-8A to isolate the fault to a specific area or component of the NSD. 3-110. TROUBLESHOOTING. Performance of the troubleshooting procedure isolates a malfunction to a specific area or component in the NSD. The steps in Tables 3-8 and 3-8A are indexed to a specific step in the checkout procedures in Tables 3-5, 3-5A, 3-6, or 3-7. The schematic diagram for the NSD is shown in Figures 5-1 through 5-3. Refer to the index for location of After remedial removal, disassembly, assembly and installation procedures. completion of repair, the checkout procedures in Table 3-5, 3-5A, 3-6, 3-7, must be performed to ensure that the nialfunction has been corrected.
Page 3-83
3-5.
OPERATIONAL
Gyro
start and rundown.
Positive
2
3
slaving.
Preliminary
CHECK
1
STEP
Table
Connect
speed.
a. On Test Fixture, set switch S1 to Vdc ONLY or 14/28 Vdc, as applicable
stop. 14
to c. Reduce vacuum 0 inch Hg and allow rotor to come to
maximum
to
Increase vacuum inches 4.8 Hg and allow Gyro to attain
b.
Hg vacuum
Test
1
S1
Test
(as
NSD. 2.25 inches to Gyro.
to
terminal
to
or 28
INLET
OFF
supply
14
to
switch
S1
(GND). e. Connect Fixture a. Apply
and
Fixture
Gyro
external
vacuum OUTLET
Procedures
Fixture 3-20) set
Test
d. Connect Vdc Power appropriate)
position.
switch
On (Figure
c.
source to port. b. Connect filter to port.
a.
PROCEDURE
Checkout P/N
momentarily
Warning
minutes. Heading
4.5
and run
coasts to in a minimum
to
52D137-1332
retracts from then view, reappears. b. Compass Card may move one way or other then stop.
Flag
a.
of
stop
Gyro
Gyro starts continues
PERFORMANCE STANDARD
(NSD
3b.
3.
2c.
2b.
2.
le.
ld.
1c.
lb
-1333)
Proceed 3b. step
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
NORMAL RESULT
and
to
to
to
to
to
to
to
to
to
to
TEST
See 3-8, 3.
2.
step
table
step
table
step
See 3-8,
table 3-8, 1.
step
table
See
See 3-8, 1.
TEST RESULT
ABNORMAL
3-5.
and
Negative
4
slaving meter centering.
OPERATIONAL CHECK
STEP
Table
source
must
Circuit
to
to 9.5
±1.0
015
F on
Fixture and D.
terminals
F
D
Vdc
and
Card
Test
terminals
±1.0
b. Remove voltage applied to Test
Fixture.
Compass
degrees 8.5
(+) and
apply across
Set
a.
to
Fixture.
volt NSD) or Vdc 12 ±2.0 (28 volt NSD). d. Set Compass Card to 345 degrees and apply 8.5 ±1.0 Vdc across terminals F (+) D on Test
Fixture Vdc (14
Board
vacuum 4.8 inches
be
c. Reduce input voltage to Test
Hg.
Procedures
In order to step a above,
discharged. b. Increase
C4 on 81B107
repeat
NOTE
PROCEDURE
Checkout P/N
warning
within 7 minutes.
to
Card 355
in view.
2
2
inch.
Meter on index
centers mark ±0.015
Slaving
Meter b. Slaving deflects full scale negative.
to
Card 005
within 7 minutes.
degrees
to
Compass
slaves
a.
Meter b. Slaving full deflects positive. scale
to
52D137-1332
Warning retracts from
Compass
slaves degrees
a.
Heading flag
view.
Flag
Heading
PERFORMANCE STANDARD
(NSD -1333)
step
Proceed
step
Proceed
step
Proceed
4c.
4b.
4.
Proceed step 3d.
Proceed 3c. step
NORMAL RESULT
and
to
to
to
to
to
TEST
6b.
See 3-8,
6b.
See 3-8,
6a.
step
table
step
table
step
table
step
3-8,
table 3-8, 6b. See
step
table
step
table
see
See 3-8, 6a.
3-8, 5.
See
step
.
o
table
RESULT See 3-8, 4.
cm oo o
ABNORMAL TEST
6
5
STEP
3-5.
Dynamic drift.
drift
Static
CHECK
OPERATIONAL
Table
Procedures
Set 0°
Compass
(North).
Card
Test
Stand.
Adjust for Scorsby 3° off horizontal on Scorsby and turn
to
a.
Set c. S1 on Test Fixture to OFF. vacuum to d. Reduce 0 inch Hg. NSD on a a. Mount suitable fixture to Scorsby attached Stand Test so that NSD is horizontal. 4.8 inches b. Apply to OUTLET Hg vacuum port of Gyro. switch c. Set S1 on Test Fixture to 14 Vdc ONLY or 14/28 as applicable. Vdc, Gyro to run d. Allow for ten minutes. e. Set Compass Card to 0 degree (North) Compass and observe drift over a 15 Card minute period. Note amount of drift. Set Card f. Compass to 0 degree (North) and rotate NSD to 90.0 (East). degrees Observe Card Compass drift over a 15 minute period. Note amount of drift.
PROCEDURE
Checkout
P/N
5.0
does
Card
Card drift not exceed degrees.
not exceed degrees.
Compass
5.0
does
Compass
STANDARD
drift
52D137-1332
PERFORMANCE
(NSD -1333)
Proceed step 6b.
Proceed step 6.
to
step 7.
table 3-8,
step
See
table
to
to Proceed 5e. step Proceed 5f. step
See 3-8, 7.
to Proceed 5d. step
RESULT
ABNORMAL TEST
to
to
to
to
to
Proceed 5c. step
Proceed 4d. step Proceed 5. step Proceed 5b. step
NORMAL TEST RESULT
and
os
O
:
A
c
V
oo
Bearing
heading
Left/right deviation
pointer.
7
After
and note Card drift. amount of
and
for
adjust
ten
Procedures
0°
the
degree drift
and
4
index.
Pointer
divide the total drift by 4. g. Set S1 on Test Fixture to OFF. Omni a. Align
indication
(West) settings. f. Add
with
drift.Scorsby. e. Repeat steps 6c and 6d for 180.0 (South) and 270.0
to
Card Compass (North) and rotate NSD to 90.0° (East). Adjust 3°off for Scorsby and turn horizontal on Scorsby. d. After ten adjust minutes, Scorsby for and horizontal observe and note Compass Card drift. Record amount of
drift. c. Set
Record
horizontal observe Compass
Scorsby
minutes,
b.
PROCEDURE
Checkout
OPERATIONAL CHECK
3-5.
STEP
Table
4
-1333)
Card
exceed
settings
average
as
as
4.0.
for does
Card
step
step
6b.
6b.
not
the
drift
not exceed degrees.
Compass
same
Same
4.0
does
Compass
Proceed step 7. Proceed 7b. step
Proceed step 6g.
Proceed 6f. step
Proceed step 6e.
Proceed step 6d.
Proceed step 6c.
to
to
to
to
to
to
to
RESULT
and NORMAL TEST
drift
52D137-1332
STANDARD
P/N
PERFORMANCE
(NSD
7.
3-8,
See
See 6f.
6f.
See
step
table
step
step
RESULT See step 6f.
ABNORMAL TEST
>
o
9
To/From
8
flag
indicator.
Nav
indicator.
OPERATIONAL CHECK
3-5.
STEP
Table
terminals
and 34. Remove voltage
33
(+)
Fixture & 32.
terminals
31
terminals from 33 and 34. from a. Starting 0 volts, slowly apply to Test 14 or 28Vdc,
b. terminals from 33 and 34. c. Starting from 0 volts, slowly apply to Test a dc voltage Fixture terminals 33 and 34 (+). d. Remove voltage
(+)
Fixture
slowly
Procedures
from 0 apply a dc voltage to Test Fixture terminals 17 (+) and 18. c. Remove voltage terminals from 17 and 18. from d. Starting 0 slowly volts, apply a dc voltage to Test terminals Fixture 17 and 18 (+). e. Remove voltage terminals from 17 and 18. a. Starting from 0 slowly volts, apply a dc voltage to Test Starting
volts,
b.
PROCEDURE
Checkout P/N
52D137-1332
a.
Nav 180
+
20,
in
Flag
micro-amperes.
to
remains
-0
view
up
FROM at 200
±40 micro-amperes.
Full scale deflection
scale Full TO deflection at ±40 micro-amperes.
200
Pointer scale full 150 ±15 at
right micro-amperes.
travels
Deviation
Left|Right
Pointer scale travels full at 150 +15 left micro-amperes.
Left|Right Deviation
STANDARD
PERFORMANCE
(NSD -1333)
Sc.
8b.
8.
7e.
7d.
7c.
9. Proceed step 9b.
step
Proceed
Proceed 8d. step
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
to
to
to
to
to
to
to
to
NORMAL TEST RESULT
and
11.
3-8,
See
step
table
step
3-8,
9
table See
step
table
step
3-8, 8.
See 3-8, 9.
table See
TEST RESULT table See 3-8, step 8.
ABNORMAL
o
12
11
Glideslope
10
output.
Heading
indicator.
flag
Glideslope
pointer.
OPERATIONAL CHECK
STEP
Table
3-5. Procedures
terminals 27
index.
b. Remove voltage from terminals 29 and 30. a. Set heading to heading selector
and 28 (+). d. Remove voltage from terminals 27 and 28. a. Starting from o apply volts, slowly to Test a dc voltage Fixture terminals 29 and 30 (+).
Fixture
b. Remove voltage from terminals 31 and 32. a. Starting from 0 apply volts, slowly to Test a dc voltage terminals 27 Fixture (+) and 28. b. Remove voltage from terminals 27 and 28. c. Starting from 0 volts, apply slowly a dc voltage to Test
PROCEDURE
Checkout
P/N
+
-0
micro-
20,
amperes·
+
-0
at
micro-
amperes. b. Glideslope out of view
20,
of
245
flag
+
pointer micro-
down of
a. Glide-slope remains in flag view up to 180
scale Full deflection glideslope at 150 +15 amperes.
20,
pointer micro-
of
up
micro-amperes.
scale Full deflection glideslope at 150 +15 amperes¯
-0
out
52D137-1332
b. Nav Flag view at 245
PERFORMANCE STANDARD
(NSD -1333)
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
12b.
12.
llb.
11.
10d.
10c.
to
to
to
to
to
to
to
to
TEST
10b.
10.
NORMAL RESULT
and
See 3-8, 13.
See 3-8, 12.
12.
See 3-8
step
table
step
table
step
table
RESULT
ABNORMAL TEST
13
STEP
O
output.
Course
CHECK
OPERATIONAL
Table
3-5.
-
Procedures
Measure voltage Fixture (+) and 21
Test
20.
voltage Test Fixture terminals 22 and 1. c. Set omni bearing pointer to 45 degrees right of index. heading
Measure
between
b.
index.
f. Set heading selector to 45 degrees left of index. heading g. Measure voltage Test between Fixture (+) and terminals 21 1. a. Set omni bearing pointer to heading
1.
1. d. Set heading selector to 45 degrees right of heading index. e. Measure voltage between Test Fixture (+) and terminals 21
terminals
between
c.
terminal
b. Apply 13.75 ±0.5 Vdc to Test Fixture terminal 19 and 13.75 ±0.5 Vdc to
PROCEDURE
Checkout P/N
±0.5
±0.5
O ± dc.
100
positive.
terminal
6.8
negative.
terminal
6.8
O ± 100 dc.
52D137-1332
with
with
millivolts
21
Vdc
21
Vdc
millivolts
PERFORMANCE STANDARD
(NSD -1333)
Proceed step 13d.
Proceed step 13c.
Proceed step 13b.
Proceed 13. step
Proceed 12g. step
Proceed 12f. step
Proceed step 12e.
Proceed 12d. step
to
to
to
to
to
to
to
to
to
TEST
Proceed 12c. step
NORMAL RESULT
and
15a.
See 3-8,
3-8, 14b.
See
See 3-8, 14b.
See 3-8, 14a.
step
table
step
table
step
table
step
table
ABNORMAL TEST RESULT
o
15
14
STEP
Final.
resolver.
Course
CHECK
OPERATIONAL
Table
3-5.
Procedures
(+) & 1.
Course
Gyro.
Disconnect from Fixture
c.
from
a. Set switch Test Fixture b. Disconnect
Fixture.
on OFF.
NSD.
Test
vacuum
to
S1
479X-2 e. Disconnect Resolver Zeroing Panel from Test
0°(EZ).
towards
300°(ORZ).
d. Rotate Pointer
ON.
Fixture
to
S1 to Course
test
3-19.
switch c. Set Pointer
Figure b. Set
Remove voltage terminals from 19 and 20 479X-2 a. Connect Resolver Zeroing Panel to Test as shown Fixture in
g.
22
±0.5
Voltage
at
is
with
with
null degrees.
22
Vdc
Vdc 22
52D137-1332
in phase with input voltage.
Output
Electrical 300 ±1.0
6.8
negative.
terminal
positive.
& i.
±0.5
terminals
(+)
6.8
terminal
22
P/N
PERFORMANCE STANDARD
(NSD
Set omni e. bearing pointer to 45 degrees left of index. heading Measure f. voltage Test between Fixture
Terminals
d. Measure voltage between Test Fixture
PROCEDURE
Checkout
15c.
15b.
15.
14e.
14d.
14c.
14b.
14.
13g.
13f.
to
to
to
to
to
to
to
to
to
to
to
TEST
13e.
-1333)
of End Checkout Procedures.
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
RESULT
NORMAL
and
See 3-8, 16. See 3-8, 16.
See 3-8, 15b.
See 3-8, 15b.
step
table
step
table
step
table
step
table
TEST RESULT
ABNORMAL
o
Gyro
start and rundown.
Positive
2
3
slaving.
Preliminary
CHECK
OPERATIONAL
1
STEP
Table Checkout
Connect Power
Test S1
(as
28
Pi
Fixture Vdc.
to
9
or
b. Reduce input voltage to Test 18
c. After five minutes set S1 to OFF and allow rotor to come to stop. a. On Test Fixture, set switch S1 to Vdc. 14/28
Fixture
switch and terminal 1 (Gnd) c. Connect Test Fixture to NSD. a. Apply 11 or 22 Vdc to S1 and set S1 Vdc. to 14/28
to
14 or supply
Test Fixture 3-20) set S1 to OFF
appropriate)
Vdc
b.
position.
switch
On (Figure
a.
PROCEDURE
3-5A. (NSD
Increase
to
to
starts
and
Heading
Warning
flag
in
view.
then and another stop. warning Heading
retracts from Flag 30-180 in view seconds. Card b. Compass may move one way
a.
))
Proceed 3c. step
Proceed step 3b.
Proceed step 3b.
Proceed step 3.
Proceed 2c. step
Proceed 2. step Proceed step 2b.
Proceed 1c. step
Proceed step lb
RESULT
NORMAL
52D189-(
run.
P/N
13.75/27.5 Vdc and allow Gyro to attain maximum speed. Gyro coasts to in a minimum stop of 3.0 minutes.
voltage
b.
a. Gyro continues
STANDARD
PERFORMANCE
údures
See 3-8A, 1. See 3-8A, 2. See 3-8, 3. See 3-8A, 4.
to
to
to
See 3-8A, 1.
step
table
step
table
step
table
step
table
step
table
RESULT
TEST
ABNORMAL
to
to
to
to
to
to
TEST
5
4
STEP
a.
Static
drift.
Remove
b.
applied
on Test
D.
Card
to Test terminals
Voltage
D (+) Fixture.
to Scorsby
amount
minute
Note
Card
Card
and a 15 period. of drift.
over
Compass
drift
to
d.
observe
minutes.
Compass (North)
ten Set 0°
for
Test
Stand so that NSD is horizontal. b. Set switch S1 on Test to Fixture 14/28 Vdc. to run c. Allow Gyro
attached
F
and
apply Vdc across
and
c. Set S1 on Test Fixture to OFF. a. Mount NSD on a fixture suitable
and
Fixture
F
Fixture.
Compass
F
terminals
±1.0
Set 015°
centering.
to 8.5
and
on Test
D
(NSD
2
within minutes.
to 7
355°
Card
P/N
5.0
does
not
drift
inch.
exceed
Card
±0.015
degrees.
Compass
mark
b. Slaving Meter deflects full negative. scale Meter Slaving centers on index
minutes.
Meter b. Slaving deflects full scale positive. Card a. Compass slaves to 005° within 2 to 7
to
Compass
slaves
a.
STANDARD
PERFORMANCE
Pts-edures
Card
(+) and
Compass
Checkout
and apply ± 1.0 Vdc across
345°
Set
terminal
8.5
to
c.
PROCEDURE
3-5A.
meter
slaving
Negative
CHECK
OPERATIONAL
Table ))
4b.
4.
to Proceed 5d. step Proceed step 5e.
to
to
to
to
to
to
to
Proceed step 5c.
Proceed step 5. Proceed 5b. step
Proceed 4c. step
step
Proceed
step
Proceed
NORMAL TEST RESULT
52D189-(
See
3-8A, 6.
step
table
step 5b.
table 3-8A
step
table
step
table
step
table
step
5b. See
3-8A,
See
5a.
3-8A,
5b. See
3.8A,
See
5a.
3.8A,
TEST RESULT table See
ABNORMAL Ua
o
cm oo
Dynamic
6
drift.
OPERATIONAL CHECK
STEP
Table (NSD
Compass
of
amount a. Set
c. Set 0°
ten
Compass (North) NSD to 90.0°
and
Card
and
Test
Fixture
to
OFF.
observe and minutes, note Compass Card Record drift. amount of drift. e. Repeat step 6c and 6d for 180.0 (South) and 270.0 degree (West) settings. f. Add the four indications drift the total and divide four. drift by S1 on Test g. Set
(East). d. After
rotate
to
Note Card
Stand. b. After ten observe minutes, note Compass Card Reduce drift. amount of drift.
to 0 deg. (North), turn on Scorsby
Compass
drift.
period.
minute
Card to 0 degrees (North) and rotate NSD to 90.0 degrees (East). Observe Compass Card drift over a 15
Set
not
exceed
for does
average settings exceed
4.0.
Card
degrees. 4.0
drift
drift
drift
drift
5b.
6.
6f.
6e.
6d.
Proceed 7. step
Proceed step 6g.
step
Proceed
step
Proceed
step
Proceed
Proceed step 6c.
step
Proceed
step
to
to
See
to
3-8A, 6.
See
6f.
See 6f.
See 6f.
step
table
step
step
step
RESULT table See 3-8A, step 6.
to
to
to
to
to
TEST
Proceed
ABNORMAL
NORMAL TEST
))
RESULT
52D189-(
not
these
exceed
Compass
not
Card
exceed
Card
does
Compass
4.0°.
does
not
degrees.
4.0
Compass
not
does
drift
P/N
exceed
Card
degrees.
Compass
does 5.0
Card
Compass
edures
e.
Pfd
PERFORMANCE STANDARD
Checkout
PROCEDURE
3-5A.
g
c. °
8
Indicator.
To/From
Bearing
deviation pointer. index.
Omni Pointer
Checkout
with
Pr
b.
from 0 Starting slowly apply volts, to Test a dc voltage terminals Fixture 17 and 18. c. Remove voltage terminals 17 from and 18. d. from 0 Starting volts, slowly apply Test a dc voltage terminals Fixture 1 and 18 (+). e. Remove voltage from terminals 17 and 18. from a. 0 Starting slowly apply volts, to Test a dc voltage terminals Fixture 33 (+) and 34. b. Remove voltage from terminals 33 and 34. from c. 0 Starting volts, slowly apply to Test a dc voltage terminals Fixture 33 and (+). 34 voltage d. Remove from terminals 33 and 34.
heading
Align
a.
Left/right
7
PROCEDURE
OPERATIONAL CHECK
3-5A.
STEP
Table
(NSD
FROM at 200
±40 microamperes.
Full
scale deflection
±40
TO
at 200 microamperes.
Full scale deflection
))
Proceed 9. step
Proceed 8d. step
Proceed Sc. step
Proceed 8b. step
to
to
to
to
to
to Proceed 7e. step
Proceed 8. step
to
to
to
Proceed 7d. step
Proceed 7c. step
Proceed 7b. step
NORMAL TEST RESULT
52D189-(
Pointer full scale at 150 ±15
right micro-amperes.
travels
Deviation
Left|Right
left
P/N
Pointer full scale 150 +15
at microamperes
travels
Deviation
Left|Right
PERFORMANCE STANDARD
edures
8.
3-8A,
See
3-8A, 8.
See
7.
See 3-8A,
7.
See 3-8A,
step
table
step
table
step
table
step
table
RESULT
ABNORMAL TEST
o
11
10
9
STEP
flag
flag indicator
Glideslope
pointer.
Glideslope
indicator.
Nav
OPERATIONAL CHECK
Table
-0
P/N
b. Remove voltage from terminals 29 and 30.
up
±15
DOWN
-0
microamperes.
+20,
b. Glideslope of view out
at
-0
up
245
flag
of pointer micro-
a. Glideslope remains in view + to 180 20, micro-amperes.
at 150 amperes.
glideslope
Full scale deflection
amperes.
-0
))
to
to Proceed lib. step
Proceed 12. step
to
to Proceed lod. step
Proceed 11. step
to
to
to
to
Proceed 10c. step
Proceed 10b. step
Proceed 10. step
Proceed step 9b.
NORMAL TEST RESULT
52D189-(
out of b. Nav Flag at 245 + 20, view micro-amperes. scale UP Full deflection of glideslope pointer at 150 ±15 micro-
a. Nav Flag remains in view to 180 + 20, micro-amperes.
(NSD
from a. Starting 0 volts, slowly apply 28 Vdc to Test terminals Fixture 31 (+) and 32. b. Remove voltage terminals from 31 32. and a. Starting from 0 volts, slowly apply to Test a dc voltage Fixture terminals 27 (+) and 28. b. Remove voltage from terminals 27 and 28. c. Starting from 0 volts, slowly apply a dc voltage to Test Fixture terminals 27 and 28 (+). d. Remove voltage from terminals 27 and 28. a. from o Starting volts, slowly apply a dc voltage to Test Fixture terminals 29 and 30 (+).
Priddures
PERFORMANCE STANDARD
Checkout
PROCEDURE
3-5A.
11.
See 3-8A,
See 3-8A, 10.
See 3-8A, 10.
9.
See 3-8A,
step
table
step
table
step
table
step
table
ABNORMAL TEST RESULT
o
e
13
12
STEP
Checkout
Vdc
19
Test
Pr
of
45°
heading
to
heading
to
omni
of
45
and
heading
bearing
voltage Fixture (+) and
Test 21
index.
left
to
(+)
b. Measure voltage between Test Fixture terminals 22 and 1. c. Set omni bearing pointer to 45° of index. heading
index.
pointer
output.
Set
a.
1.
terminals
21
heading
Measure
between
g.
f. Set selector degrees heading
1.
terminals
e. Measure voltage between Test Fixture
right index.
d. Set selector
1.
c. Measure voltage between Test Fixture terminals (+) and 21
-13.75
to Fixture terminal and ±0.5 to terminal 20. 100
+
13.750
Vdc
index. b. Apply
±0.5
to heading
a. Set selector heading
PROCEDURE
3-5A.
Course
output.
Heading
CHECK
OPERATIONAL
Table
(NSD
±
±0.5
100
dc.
0
±
100
positive.
±0.5 6.8 terminal
negative.
terminal
6.8
dc.
0
P/N
))
13.
12g.
12f.
12e.
12d.
12c.
12b.
Proceed step 13d.
Proceed step 13c.
to
to
to
to
to
to
to
to
to
to
TEST
Proceed step 13b.
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
NORMAL RESULT
52D189-(
with
with
millivolts
21
Vdc
Vdc 21
millivolts
PERFORMANCE STANDARD
edures
13a.
3-8A,
See
12b.
3-8A,
See
12b.
3-8A,
See
12a.
3-8A,
See
step
table
step
table
step
table
step
table
RESULT
ABNORMAL TEST
-
°
c.
os
15
Course
14
Final.
resolver.
OPERATIONAL CHECK
STEP
Table
left
to of
3-19.
switch a. Set Fixture Test b. Disconnect Fixture from
Fixture.
on OFF. Test NSD.
to
S1
test fixture switch S1 to ON. c. Set Course Pointer to 300° (ORZ). d. Rotate Course 0° Pointer towards (EZ). 479X-2 e. Disconnect Resolver Zeroing from Test Panel
Figure b. Set
input
with voltage.
at
is
with
))
13e.
14b.
14.
14d.
Checkout Procedures.
Proceed step 15b. End of
Proceed step 15.
Proceed step 14e.
step
Proceed
Proceed step 14c.
step
Proceed
step
Proceed
Proceed step 13g.
to
to
to
to
to
to
to
to
to
to
TEST
Proceed 13f. step
step
Proceed
NORMAL RESULT
52D189-(
with
null
Vdc 22
Vdc 22
P/N
Voltage
±1.0°.
in phase
Output
300
Electrical
positive.
6.8 ±0.5 terminal
negative.
±0.5
(+)
6.8
STANDARD
terminal
bearing 45
(NSD
PERFORMANCE
adures
Fixture
and
Pr
index. heading f. Measure voltage between Test Fixture terminals 22 (+) and 1. g. Remove voltage from terminals 19 and 20. 479X-2 a. Connect Resolver Zeroing Panel to Test Fixture as shown in
e. Set pointer degrees
Test 22
voltage
Checkout
omni
Measure
between Terminals 1.
d.
PROCEDURE
3-5A.
3-8A, 14.
See
3-8A, 14.
See
3-8A, 13b.
See
3-8A, 13b.
See
step
table
step
table
step
table
step
table
RESULT
ABNORMAL TEST
3
2
1
STEP
start
run-
Positive slaving.
down.
and
Gyro
Preliminary
CHECK
OPERATIONAL
Table
3-6. Procedures
S1
NSD. 2.25 inches to Gyro.
Test
1
(as Test
28
Increase vacuum 4.8 inches Hg and allow Gyro to attain maximum speed. c. Reduce vacuum to 0 inch Hg and allow rotor to come to stop. a. On Test Fixture, switch set S1 to 14 Vdc ONLY or 14/28 as applicable. Vdc,
to
b.
e.
to
terminal
(Gnd). Connect Fixture a. Apply Hg vacuum
and
Fixture
switch
to
or
appropriate)
Vdc
Supply
14
OFF
to
S1
set
Fixture
3-20)
Test
Connect Power
d.
switch position.
On (Figure
c.
port.
a. Connect vacuum source to Gyro OUTLET port. b. Connect external filter to Gyro INLET
PROCEDURE
Checkout
P/N
and run.
then
then or other stop.
way
Card
one
Compass
may move
b.
reappears.
view,
Warning
momentarily from
Heading
retracts
Flag
a.
coasts to stop in a minimum minutes. of 4.5 Gyro
starts continues
Gyro
to
52D137-1020
PERFORMANCE STANDARD
(NSD
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
-1220)
3b.
3.
2c.
2b.
2.
le.
1d.
1c.
lb
NORMAL RESULT
thru
to
to
to
to
to
to
to
to
to
TEST
See 3-8, 3.
2.
See 3-8,
1.
See 3-8,
See 3-8, 1.
step
table
step
table
step
table
step
table
RESULT
TEST
ABNORMAL
ca
centering.
meter
Negative slaving
4
3-6.
and
OPERATIONAL CHECK
STEP
Table
to to Test 9.5
±1.0
vacuum inches
input
4.8
Set
Compass
to Test terminals
D
Vdc
and
Card
Test
voltage
F on
terminals
b. Remove applied Fixture and D.
(+) and Fixture.
across
015 degrees 8.5 apply ±1.0
to
a.
Vdc
F
volt (14 NSD) or Vdc 12 ±2.0 (28 volt NSD). d. Set Compass Card and to 345 degrees 8.5 apply ±1.0 Vdc across terminals F (+) and D on Test Fixture.
Fixture
voltage
discharged. b. Increase source to Hg. c. Reduce
Board
must
81B107
be
Circuit
repeat
NOTE
C4 on
Procedura
In order to step a above,
PROCEDURE
Checkout
P/N
7
minutes.
7
within minutes.
3
3
b. Slaving Meter deflects full scale negative. Meter Slaving centers on index +0.015 mark inch.
to
degrees
b. Slaving Meter deflects full scale positive. a. Compass Card slaves to 005
to
Card a. Compass slaves to 355 degrees within
Heading Warning retracts Flag view. Heading Warning in view. Flag from
52D137-1020
PERFORMANCE STANDARD
(NSD -1220)
Proceed step 4c.
Proceed step 4b.
Proceed step 4.
Proceed 3d. step
Proceed 3c. step
NORMAL RESULT
thru
to
to
to
to
to
TEST
step
table
step
table
step
table
step
table
step
table
step
6b.
3-8,
step
see table
6b.
3-8,
see table
6a.
See 3-8,
6b.
See 3-8,
6a.
See 3-8,
See 3-8, 4. See 3-8, 5.
RESULT
ABNORMAL TEST
o
c
OPERATIONAL CHECK
Static drift.
Dynamic drift.
STEP
5
6
Table
3-6. Procedure
to
and 90.0°
Observe Card drift
(North) NSD
Card
Note
Compass
Card
Compass
over a 15 period. of drift.
Set
Compass
Card
Stand.
to 0° (North) and turn on Scorsby Test
a.
over a 15 minute period. Note amount of drift.
Compass
(East).
rotate
to
amount f. Set 0°
minute
drift
observe
c. Set S1 on Test Fixture to OFF. d. Reduce vacuum to 0 inch Hg. a. Mount NSD in a suitable fixture attached to Scorsby Test Stand so that NSD is horizontal. b. Apply 4.8 inches Hg vacuum to OUTLET port of Gyro. c. Set switch S1 on Test to 14 Fixture Vdc ONLY or 14/28 Vdc, as applicable. d. Allow Gyro to run for ten minutes. e. Set Compass Card to 0° (North) and
PROCEDURE
Checkout
P/N
52D137-1020
not for
unslaved.
not
drift exceed slaved 2.0° for Card
Card drift exceed for slaved 2.0° NSD or for does 5.0°
Compass
NSD or unslaved.
does 5.0°
Compass
PERFORMANCE STANDARD
GNSD -1220)
Proceed 6b. step
Proceed step 6.
step
to
to
to
to Proceed 5e. step 5f.
to Proceed 5d. step
Proceed
to
to
to
to
TEST
Proceed 5c. step
Proceed 4d. step Proceed 5. step Proceed 5b. step
NORMAL RESULT
thru
See 3-8, 7.
step
table
RESULT
ABNORMAL TEST
o
7
STEP
3-6.
pointer.
Left/right deviation
CHECK
OPERATIONAL
Table
After
Card amount
drift.
terminals 18.
Fixture
(+) and
17
index. heading from 0 b. Starting apply volts, slowly to Test a dc voltage
Set S1 on Test Fixture to OFF. Omni a. Align Pointer with Bearing
g.
Record of drift. e. Repeat steps 6c and 6d for 180.0 (South) and 270.0 (West) degree settings. f. Add the four drift indications and divide the total drift by 4.
Compass
not
Compass
average
±15
Pointer full scale
left at 150 microamperes.
travels
Left/Right Deviation
2.0°
for
not
four
Card
Card
drift for the settings does 4.0° exceed slaved NSD and unslaved. for
unslaved.
observe
drift exceed slaved for 2.0° NSD or for unslaved. Compass Card drift does not exceed 4.0° slaved for 2.0° NSD or for Compass
does 4.0°
ten
90.0°
minutes,
NSD
and
Card
of
(East). d. After
rotate
to
Compass
(North)
Set 0°
c.
amount
Record drift.
does not exceed 4.0 degrees for slaved NSD or 2.0 degrees for unslaved.
drift.
observe
Card
drift
52D137-1020
Compass
Card
to
P/N
PERFORMANCE STANDARD
,NSD
ten
Procedur
Compass
minutes,
b.
PROCEDURE
Checkout -1220)
Proceed step 7c.
Proceed 7. step Proceed step 7b.
Proceed step 6g.
Proceed step 6f.
Proceed step 6e.
Proceed step 6d.
Proceed step 6c.
RESULT
to
to
to
to
to
to
to
to
NORMAL TEST
thru
step
table
step
See 3-8, 8.
table 3-8, 7.
step
step
See
See 6f.
See 6f.
RESULT See step 6f.
TEST
ABNORMAL
9
To/From
8
flag indicator.
Localizer
indicator.
OPERATIONAL CHECK
3-6.
STEP
Table
Remove voltage
terminals
Test 33
from 0 apply
to terminals
slowly voltage
34.
7.
terminals
c. Remove voltage from terminals 8
(+) and
Fixture
& 7.
8
c. Starting from 0 apply volts, slowly a dc voltage to Test Fixture terminals 33 and 34 (+). d. Remove voltage from terminals 33 and 34. a. Apply a ground to Test Fixture 35. terminal b. Starting from 0 slowly apply volts, to Test a dc voltage
and
(+) and 34. b. Remove voltage from terminals 33
Fixture
volts, a dc
TO 200
±15
±40
microamperes.
at
TO
200
FROM 200
at
microamperes.
Full scale deflection
±40
at
microamperes.
Full scale deflection
±40
Full scale deflection
right at 150 microamperes. Proceed
9b.
9.
8d.
Sc.
8b.
8.
7e.
7d.
step
Proceed 9d.
Proceed step 9c.
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
17
scale
step
Pointer
full
Deviation
travels
Proceed
step
Proceed
Left/Right
STANDARD
-1220)
to
to
to
to
to
to
to
to
to
to
NORMAL TEST RESULT
thru
and 18. a. Starting
(+).
52D137-1020
step
18
P/N
PERFORMANCE
NSD
e. Remove voltage from terminals 17
and
Fixture
d. Starting from 0 slowly apply volts, to Test a dc voltage
17
Procedure
from terminals and 18.
c.
PROCEDURE
Checkout
step
table
step
See 3-8, 10.
table 3-8, 9.
step
See
9.
3-8,
See
table
step
3-8, 8.
table See
RESULT
TEST
ABNORMAL
o
11
indicator.
Glideslope flag
a. volts, slowly apply voltage to Test a dc terminals Fixture 27 (+) and 28. b. Remove voltage from terminals 27 and 28. c. Starting from 0 apply volts, slowly to Test a dc voltage terminals Fixture 27 and 28 (+). voltage d. Remove terminals from 27 and 28. from 0 a. Starting apply volts, slowly to Test a dc voltage terminals Fixture 29 and 30 (+).
Glideslope
pointer
10
Procedut
from
and
30.
b. Remove voltages terminals from 29
Starting
0
0 from Starting apply volts, slowly a dc voltage to Test terminals 8 Fixture and 7 (+). voltage e. Remove from terminals 8 and 7.
d.
PROCEDURE
Checkout
OPERATIONAL CHECK
3-6.
STEP
Table P/N
of
UP
100
+
20,
-15
amperes.
±0,
up
flag
flag at 250
-0
view
micro-
b. Glideslope out of view
microamperes.
to
in
Glideslope
remains
a.
microamperes.
±15
step
Proceed
step
Proceed
step
Proceed
pointer
glideslope 150
step
at
Proceed
of
step
Proceed
step
Proceed
step
Proceed
step
Proceed
DOWN
scale
-1220)
12.
llb.
11.
10d.
loc.
10b.
10.
9e.
to
to
to
to
to
to
to
to
NORMAL TEST RESULT
thru
deflection
Full
glideslope pointer at 150 ±15 microamperes.
scale Full deflection
±40 microamperes.
scale deflection Full
STANDARD
FROM at 200
52D137-1020
PERFORMANCE
(NSD
13.
See 3-8,
12.
See 3-8,
12.
See 3-8,
10.
See 3-8,
step
table
step
table
step
table
step
table
RESULT
TEST
ABNORMAL
>
g
o
13
12
STEP
3-6.
output.
Course
heading
±0.5 20.
Vdc
to
Set
45°
heading
to
(+)
21
(+) and
(+) right index.
degrees heading
of
bearing 45
to
Set
pointer
c.
terminals
Fixture
voltage Test 22
omni
Measure
between
b.
index. & 1.
1. f. Set heading selector to 45° left of heading index. g. Measure voltage between Test Fixture terminals 21 (+) and 1. a. Set omni bearing pointer to heading
terminals
e. Measure voltage between Test Fixture
index.
21
heading
selector right of
1. d.
terminals
-
and
13.75 ±0.5 Test Fixture 19 and
to
heading
Procedura
c. Measure voltage between Test Fixture
terminal
13.75
Vdc
to terminal
Apply
selector index.
output. b.
a. Set
PROCEDURE
Checkout
Heading
CHECK
OPERATIONAL
Table
O
± 0.5
± 100
± 0.5
dc.
O
± 100
positive.
terminal
6.8
negative.
terminal
6.8
dc.
millivolts
Vdc 21
Vdc 21
millivolts
with
with
52D137-1020
PERFORMANCE STANDARD
ANSD P/N
12g.
12f.
12e.
12d.
12c.
12b.
13c.
13b.
to
to
to
to
to
to
to
to
Proceed to step 13d.
step
Proceed
step
Proceed
Proceed 13. step
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
to
3-8, 15a.
See
14b.
See 3-8,
14b.
See 3-8,
14a.
See 3-8,
step
table
step
table
step
table
step
table
RESULT
TEST
Proceed
ABNORMAL
NORMAL TEST
-1220)
RESULT
thru
15
Course
14
Final.
resolver.
OPERATIONAL CHECK
3-6.
STEP
Table Procedure
Rotate
d. Course
towards
0°
Pointer
ON.
Fixture
(EZ). 479X-2 e. Disconnect Resolver Zeroing Panel from Test Fixture. S1 on a. Set switch Test Fixture to OFF. b. Disconnect vacuum from Gyro. Test c. Disconnect FiXture NSD. from
Pointer
300°
to
S1 to Course (ORZ).
3-19.
Test
Figure
b. Set switch c. Set
d. Measure voltage between Fixture Test Terminals 22 (+) & 1. e. Set omni bearing pointer to 45 degrees left of heading index. f. Measure voltage between Test Fixture terminals 22 (+) & 1. voltage g. Remove from terminals 19 and 20. 479X-2 a. Connect Resolver Zeroing to Test Panel Fixture as shown in
PROCEDURE
Checkout
with
-1220)
± 0.5 22
±1.0°.
null
Output
voltage with in phase input voltage.
300
Electrical
positive.
6.8 ± 0.5 Vdc terminal 22
negative.
terminal
6.8
is
at
with
13f.
13e.
14e.
14d.
Checkout Procedures.
Proceed 15b. step Proceed step 15c. End of
Proceed step 15.
step
Proceed
step
Proceed
Proceed step 14c.
Proceed step 14b.
Proceed step 14.
Proceed step 13g.
step
Proceed
step
Proceed
to
to
to
to
to
to
to
to
to
to
to
RESULT
thru
STANDARD Vdc
52D137-1020
NORMAL TEST
P/N
PERFORMANCE
(NSD
16.
16. See 3-8,
See 3-8
step
table
step
table
step
3-8,
15b.
table See
15b.
TEST RESULT See table 3-8, step
ABNORMAL
3
start
drift.
Static
and rundown.
Gyro
Preliminary
1
2
OPERATIONAL CHECK
STEP
Table Checkout
Prú
Power
Connect
inches
Increase 4.8
to
2.25
inches
and attain
Hg
vacuum
Gyro.
to NSD.
is
port
of
b. Apply vacuum
NSD
that
Gyro.
to OUTLET
Hg
so horizontal. 4.8
a Scorsby
to
Stand
attached Test
fixture
NSD in
stop. a. Mount suitable
allow Gyro to maximum speed. vacuum c. Reduce to 0 inch Hg and allow rotor to come to
to
b.
Hg vacuum
1
(as
28
Test S1
or
to
Test
switch
terminal
(Gnd). e. Connect Fixture a. Apply
and
Fixture
Supply
14
Fixture 3-20) set S1 to OFF
appropriate)
Vdc
d.
position.
switch
(Figure
port. c. On Test
vacuum a. Connect source to Gyro OUTLET port. external b. Connect filter to Gyro INLET
PROCEDURE
3-7.
(NSD
coasts
to
to
Proceed 3c. step
Proceed step 3b.
Proceed 3. step
Proceed 2c. step
Proceed 2. step Proceed 2b. step
Proceed le. step
to
to
to
to
to
to
to
to
to
Proceed 1c. step Proceed 1d. step
to
1.
See 3-8,
1.
See 3-8,
step
table
step
table
TEST RESULT
RESULT
Proceed lb step
ABNORMAL
NORMAL TEST
52D136-All)
run.
and
P/N
stop in a minimum of 4.5 minutes.
Gyro
starts continues
Gyro
PERFORMANCE STANDARD
dures
o
Dynamic
4
drift.
OPERATIONAL CHECK
STEP
Table Checkout
Pr
to
drift.
of
Card
amount
Compass
90.0°
and
observe
ten
(North) NSD
Test
Card
Record drift.
Compass
of
and
Record drift.
minutes,
(East). d. After
rotate
to
0°
amount c. Set
drift.
minutes, Card
ten Compass
Stand. b. After
drift. Set Compass to 0° (North) turn on Scorsby
of a. Card
a 15 minute Note amount
period.
over
Observe drift Card
(East). Compass
switch S1 on c. Set Test Fixture to 14 Vdc ONLY or 14/28 as applicable. Vdc, Gyro d. Allow to run ten minutes. for e. Set Compass Card to 0° (North) and observe Compass Card drift over a 15 minute period. Note amount of drift. Set Compass Card f. to 0° (North) and rotate NSD to 90.0°
PROCEDURE
3-7. (NSD
does 4.0.
Compass
does 4.0.
Compass
5.0°.
does
Compass
5.0°.
does
Compass
not
not
not
not
STANDARD
P/N
drift
drift
drift
exceed
Card
exceed
Card
exceed
Card
Proceed step 4e.
Proceed step 4d.
Proceed step 4c.
Proceed step 4b.
Proceed step 4.
to
Proceed step 3e. Proceed step 3f.
to
to
to
to
to
to
to
Proceed step 3d.
NORMAL TEST RESULT
52D136-All)
Card drift exceed
PERFORMANCE
dures
See 4f.
4f.
See
step
step
step
table
step
3-8, 7.
See 3-8, 7.
table See
ABNORMAL TEST RESULT
o
os
6
5
STEP
indicator.
To/From
pointer.
Left/Right deviation
CHECK
OPERATIONAL
Table Checkout
Pro
with
and 18. Remove voltage
terminals 17
from 0 apply slowly voltage to Test
index.
Pointer
Omni
OFF.
terminals 34.
Fixture
(+) and
33
from terminals 17 and 18. from d. Starting 0 apply volts, slowly to Test a dc voltage Fixture terminals 17 and 18 (+). e. Remove voltage from terminals 17 and 18. from 0 a. Starting volts, apply slowly to Test a dc voltage
c.
(+)
FiXture
a dc
volts,
total
4 drift and
on Test
4.
to
S1
by
the
heading b. Starting
Set Fixture a. Align Bearing
g.
divide drift
settings. f. Add the indications
e. Repeat steps 6c and 6d for 180.0 (South) and 270.0 (West) degree
PROCEDURE
3-7.
(NSD
not
exceed
Card
P/N
drift
at
scale
TO at 200
±40 microamperes.
deflection
Full
±15
scale
Pointer
full at 150
right microamperes.
travels
Left/Right Deviation
scale ±15
Pointer
full 150
microamperes.
left
travels
Deviation
Left/Right
4g.
4f.
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
6b.
6.
5e.
5d.
5c.
step 5. Proceed step 5b.
Proceed
step
Proceed
step
Proceed
RESULT
to
to
to
to
to
to
to
to
to
NORMAL TEST
52D136-A11)
Card drift average for the four does settings 4.0°. not exceed
Compass
does 4.0.
Compass
STANDARD
PERFORMANCE
edures
9.
See 3-8,
8.
See 3-8,
See 3-8, 8.
7.
See 3-8,
4f.
step
table
step
table
step
table
step
table
TEST RESULT step See
ABNORMAL
S. M
°
o
o
o
c>
8
7
STEP
Checkout
34. Starting
Fixture
terminals terminals
a dc and
Fixture
volts,
indicator. 30
(+).
27
o
27
Test 29
apply
from
to terminals
slowly voltage
and 28. a. Starting
from
and 28 (+). voltage d. Remove
(NSD P/N
150
±15
100
+
20,
-15
microamperes.
+0,
b. Glideslope out of view
microamperes.
to
a. Glideslope remains in
microamperes.
Full scale deflection glideslope at 150 ±15
microamperes.
at
Full scale deflection glideslope
at
-0
250
flag
flag view up
of pointer
DOWN
pointer
UP of
6d.
6c.
7c.
Proceed 8b. step
Proceed step 8.
Proceed step 7d.
step
Proceed
Proceed step 7b.
Proceed 7. step
step
Proceed
step
Proceed
RESULT
NORMAL
52D136-All)
Full FROM scale deflection at 200 ±40 microamperes.
STANDARD
PERFORMANCE
Pradedures
c. from 0 slowly apply volts, to Test a dc voltage terminals Fixture 33 and 34 (+). d. Remove voltage terminals 33 from and 34. a. Starting from o apply volts, slowly to Test a dc voltage terminals Fixture 27 (+) and 28. b. Remove voltage terminals from 27 and 28. from 0 c. Starting apply volts, slowly to Test a dc voltage
and
b. Remove voltage terminals 33 from
PROCEDURE
3-7.
Glideslope flag
pointer.
Glideslope
CHECK
OPERATIONAL
Table
to
to
to
to
to
to
to
to
TEST
See 3-8, 13.
See 3-8, 12.
12.
See 3-8,
9.
See 3-8,
step
table
step
table
step
table
step
table
TEST RESULT
ABNORMAL
os
c.
o
oo
10
9
STEP
Course output.
output.
Heading
CHECK
OPERATIONAL
Table Checkout
20.
Vdc
and
to
-
± 0.5
heading
right index. of
45°
to pointer
1. bearing
22(+)&
omni Set
c.
terminals
b. Measure voltage Test between Fixture
index.
f. Set heading selector to 45° left index. of heading Measure g. voltage between Test Fixture 21(+)& terminals 1. omni a. Set bearing to heading pointer
21(+)&
± 0.5
dc.
O
± 100
positive.
terminal
6.8
negative.
1.
6.8
terminals
heading
45°
1.
100
terminal
of
to
heading
21(+)&
O ±
dc.
e. Measure voltage Test between Fixture
right index.
d. Set selector
terminals
c. Measure voltage between Test Fixture
terminal
19
(NSD P/N
millivolts
Vdc 21
Vdc 21
millivolts
PERFORMANCE STANDARD
Procedures
±0.5
Fixture
13.75 Test
±0.5
Apply
13.75
Vdc
to terminal
b.
index.
b. Remove voltage from terminals 29 and 30. a. Set heading selector to heading
PROCEDURE
3-7.
with
with
10.
9g.
9f.
9e.
9d.
9c.
9b.
9.
step
Proceed
lod.
Proceed loc. step
Proceed 10b. step
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
RESULT
to
to
to
to
to
to
to
to
to
to
to
NORMAL TEST
52D136-All)
15a.
See 3-8,
14b.
See 3-8,
14b.
3-8,
See
14a.
See 3-8,
step
table
step
table
step
table
step
table
TEST RESULT
ABNORMAL
U
e °
o o
o
12
Course
11
Final.
resolver.
OPERATIONAL CHECK
STEP
Table
Checkout
omni
to
Terminals Set
pointer
bearing 45° left
22(+)&
Course 0°
in
479X-2 e. Disconnect Resolver Zeroing Panel from Test Fixture. Set a. switch S1 on Test Fixture to OFF. vacuum b. Disconnect from Gyro. c. Disconnect Test Fixture from NSD.
toward
to
Test Fixture S1 to ON. Course 300°
shown
Test
as 3-19.
to
Rotate
Pointer (EZ).
d.
Pointer (ORZ).
Fixture Figure b. Set switch Set c.
Panel
index. of heading voltage f. Measure between Test Fixture 22(+)& terminals 1. g. Remove voltage from terminals 19 and 20. 479X-2 a. Connect Resolver Zeroing
e.
1.
PL
voltage d. Measure between Test Fixture
PROCEDURE
3-7. (NSD
±0.5
± 0.5
is
at
with
12.
11e.
lld.
lic.
11b.
11.
log.
10f.
10e.
checkout Procedures.
to
to
to
to
to
to
to
to
to
to
to
TEST
step 12b. Proceed step 12c. End of
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
step
Proceed
NORMAL RESULT
52D136-All)
with
null
voltage
22
Vdc
22
Vdc
P/N
in phase with input voltage.
Output
Electrical ±1.0°. 300
positive.
terminal
6.8
negative.
terminal
6.8
PERFORMANCE STANDARD
Aures
16.
See 3-8,
16.
See 3-8,
15b.
See 3-8,
step
table
step
table
step
table
RESULT See table 3-8, step 15b.
ABNORMAL TEST >
run. Gyro
coast least
to b.
to
2
Gyro
a.
1
Flag
fails for 4.5
fails
does not retract on application of power.
Heading Warning
minutes.
at
TROUBLE
3-8.
STEP
Table
the
the
interior
out
b.
Solenoid.
Incorrect a. voltage.
Gyro
of
NSD. Rotor bearings shaft.
the
of
of
or
no
balance.
or
conducted Room" environment prevent contamination
therefore
NSD cover
P/N
to
removed and must be in a "Clean
These are with
CAUTION:
Procedures performed
CAUSE
(
PROBABLE
Troubleshooting
Check
as
output
of
Q6. open
Check C4 for condition. A+ at Check for blue lead on solenoid.
c.
at
Rotor
CR4.
Q6.
Replace Replace
Replace solenoid.
C4.
Q1. Replace
Replace
R1
Replace R2.
or
Assembly. Rebalance Gyro as necessary.
Replace complete
REMEDY
52D136-All)
circuit Board follows:
and
1. Check R1 and open or R2 for short condition. A+ 2. Check for output at Q1. 3. Check CR4 for open condition. A+ b. Check for
81C81
regulator on Circuit
a.
None.
None.
PROCEDURE
ISOLATION
52D137-All,
o c
oo
Compass
3 Card
rotates continuously.
TROUBLE
3-8.
STEP
Table
b.
Motor
a. Azimuth circuit.
PROBABLE
Troubleshooting
circuit.
reference
CAUSE
(
P/N
to
Q2 and
e. Check IC1B. Check f. R3 and open or R4 for condition. short
condition
Check R5, R6, R7, R8, and R9 for open or short condition. C1 and d. Check C2 for open
c.
Q3.
Check
and
(+)
of
proceed below. b. b.
(-), to to
from
indication changes
If
terminal
13.
Board/ Assembly 3-21)
Circuit Brush
(Figure Test Fixture
the ring
Replace Replace R4.
C2.
Replace
defective resistor.
Replace and/or Replace
Replace
a VOM
IC2B.
output
Connect
between
a.
and R17, or short condition. d. Check
resistor.
and/or Replace defective
R16, R18 for open
c. Check
Q5.
is Replace
A+
proceed absent, to b below. Q4 and b. Check
13
If
ground.
REMEDY
52D136-All)
A+ 1/2 Fixture
and
terminal
ISOLATION PROCEDURE a. Measure Test from
52D137-All,
R3
or
IC1B.
C1 or
Q2 Q3.
IC2B.
Q4 Q5.
e o
o
73
cm oo
5
Heading
4
to
to
into view specified voltages-
fails
Warning
Heading
retract.
fails
Warning
TROUBLE
3-8.
STEP
Table
at
Flag come
Flag
a. sticking
Heading
b.
Solenoid
position.
Flag
O P/N
spring
in up
Warning
switch.
Support
c. Diode Assembly.
Vacuum
CAUSE
(-
PROBABLE
Troubleshooting
Ic1A.
R14
and
-a
.
in
in
to
flag 10.5
view voltage
If
bent.
(in
is
to
too
Vdc,
strong.
spring may be weak. If flag does not drop into view by the time the voltage to 8.5 is reduced is Vdc, spring
before reduced
drops
not
spring
is
that
position check
tension.
Check
and flag
view)
down
move
terminal.
a ground switch
Manually to flag
solder
vacuum
Apply
Assembly.
3b step constant remains check D1 and Q1 Support on Diode
indication
for
open or condition. short i. Check IC2A. If voltage
R15
flag view Heading
IC2A.
adlust Flag
stays
vacuum
or
Q1.
D1
replace spring.
Adjust
or
when bezel deflected.
flag
strike
that not
does
so that stop is of flag out view when solenoid is engaged and in such a manner
in
If
replace switch.
Adjust
and/or
Replace Replace
resistor.
defective
o
IC1A. R10 R11
U2
Check h. Check R12 R13
Replace Replace
oo
os
g.
52D136-All)
REMEDY
and
ISOLATION PROCEDURE
52D137-All,
8
7
Slaving
deflect
fails
Card
full scale one or both directions.
to
pointer
drift. Left/right deviation
specified
exceeds
Compass
does not deflect or fail to center.
meter
b.
slave.
in
not
(
CAUSE
Block
Meter.
Coil.
Rotor.
a. Brush Assembly.
Gyro
Slaving
Slaving
does
Compass
a.
6
Card
PROBABLE
Troubleshooting
TROUBLE
3-8.
STEP
Table
L P/N
and
meter.
-2334
-1333
-2331
In step b note that below, 52D137NSD P/N 1332 and brush No.'s are 5 & 8 respectively. NOTE
a. Check brushes for cleanliness, bent brushes, and good contact.
Slaving None.
Replace Block
Brush Assembly
meter. Replace Rebalance Gyro.
R22.
or
Coil.
Replace
replace wiring.
Repair
Replace Slaving
REMEDY
52D136-All)
Test between terminals Fixture K & F and between K & D. If measurement indicates an open circuit the Slaving coil is defective. a. Check wiring for correct connections, open insulation bad soldering and breaks. b. Check R22 for open or short condition. c. Defective
resistance
PROCEDURE Measure
ISOLATION
52D137-All,
c
9
STEP
3-8.
To-From flag fails to deflect full in one scale or both directions
TROUBLE
Table
Left/Right
Relay
c. Brush Assembly.
b.
Circuit 81B107.
a.
b.
PROBABLE
Troubleshooting
Block
Kl.
P/N
Meter. Board
CAUSE
(i.¿
-1333
P/N
are for
4
& To-
brushes & 2
From Meter connections.
No.
between
Block
Repair
Replace
replace
& 8
continuity
5
brush
-2331
52D137-
Repair Board.
wiring.
replace
Replace Right Repair
between brushes 4 and 2 on Brush Block Assembly Fixture and Test terminals 33 and 34 respectively. for Check
continuity
Check
respectively.
-2334
& No.'s
NSD 1332
below,
Circuit NOTE
Board-
Wiring
solder at Board. In the step note that
Check Circuit
b. Check connections
to
a.
meter•
Assembly.
Replace Block
PROCEDURE
b. Check continuity between brushes No. 3 & 6 on Brush Assy Block Fixture & Test Terminals 17 & 18, respectively. Check open for
52D136-All)
REMEDY
and
ISOLATION
52D137-All,
Assy.
or Brush
Kl.
Circuit
or
Meter.
Left/
Brush
>
M
°
Gr.
a
oo
11
Localizer
10
NAV flag fails to operate as specified. Brush
b.
Kl.
To-From
(ksu
Block
Meter.
CAUSE
NAV Meter.
Assembly.
a.
Relay
d.
PROBABLE
Troubleshooting
fails flag to deflect full scale in one or both directions.
TROUBLE
3-8.
STEP
Table
P/N
Apply
Test
terminals 32
meter.
Check
for
respectively.
Assy
open
Fixture 31 & 32
Block
to Test terminals
Brush
a. Check brushes for cleanliness, bent brushes and good contact. b. Check for continuity between brushes No. 6 & 4 on
respectively.
Fixture 31 and
Brush Block and Assembly
Kl
Replace Meter.
Replace Block Assembly.
NAV
Brush
Brush Repair Block Assembly.
Replace
ToReplace Meter. From
REMEDY
52D136-All)
14 Vdc Fixture 8 (+)
Fixture 35.
ground
an
open
and
and 7. c. Check for continuity between brushes No. 4 and 2 on
to Test terminals
b.
to Test terminal
a. Apply external
meter·
ISOLATION PROCEDURE Check for
52D137-All,
cm
>
o o
oo
14
13
Glideslope
12
Warning
scale
deflect
fails
specified.
Heading fails function
specified.
to as
pot
fails flag operate as
G|S
up.
full
to
pointer
TROUBLE
3-8.
STEP
Table
to
Heading
Pot
Pot.
Warning
Heading
Assembly.
b.
a.
b. G|S Meter.
CAUSE
warning
Glideslope
a. G|S resistor.
b.
a. Glideslope resistor.
PROBABLE
Troubleshooting
Brush
Flag
flag
Meter.
P/N
for
and
Check
30
and
terminals
Test
for
Measure
is
contact.
2
supply
heading
1 or
voltage
to that
brushes cleanliness, brushes and Check
good
for bent
a.
A+.
voltage
b.
index.
a. Check determine measured is within volts at
meter.
b. Check resistor for on meter open or short condition. Check for open
meter.
continuity between Fixture 29 and
a.
Glideslope
or
or
Pot.
Heading Pot Brush Assembly.
Repair
Replace Heading
Replace G|S Flag Warning Meter. Adjust Heading Pot for null index. heading
Replace resistor.
wiring.
replace
Meter. Repair
Replace
meter.
resistor.
on meter for open or short condition. Check for open
Replace
wiring.
replace
Repair
REMEDY
52D136-All)
Test terminals Fixture 27 & 28 & meter. b. Check-resistor
Check
continuity between
a.
ISOLATION PROCEDURE
52D137-All,
o
c.
o
o
os oo o
o
16
Course
15
to
pot as
Course
b.
Rotor
a. Slip Assembly.
b. Course Assembly.
a.
PROBABLE
Troubleshooting
fails to function as specified for ORZ and EZ.
resolver
Course
fails function specified.
TROUBLE
3-8.
STEP
Table
or
Ring
Pot
P/N
Brush
Brush
Stator.
Pot.
CAUSE
(
52D136-All)
Check
b.
Fixture 23, 24, None.
rings
for slip Test 25,
& 26.
terminals
and
Check
applicable.
Shaft|Meter Assembly
Section
replace
Repair
os
M or
as
=
o
°C.
o
A
o o
oo
Center
or
Replace slip Ring Assembly.
a.
b. Check continuity between
Assembly.
Course
Repair slip Ring Brush Assembly.
A+.
Brush
Course
Course
brushes for cleanliness, and brushes bent contact. good
supply
Pot
null
Replace or
Brush
Assembly.
Pot
Repair
Pot.
Replace
indicates
supply
A+. brushes a. Check for cleanliness, brushes and bent contact. good b. Output voltage
is
Measured
voltage
index.
2
or heading 1
Pot. Assy. Course
null for heading
Pot
at
voltage
Adjust
to that
A+.
measured is within volts at index.
determine
a.
supply
indicates Heading Brush
Replace
PROCEDURE Output
b.
REMEDY
voltage null or
and
ISOLATION
52D137-All,
run.
to
2.
Gyro
a.
1.
not
seconds.
30-180
retract
does
Warning
to
Gyro coast at least minutes. Heading
b.
TROUBLE
STEP
in
Flag
fails for 3.0
fails
Table
These
CAUTION
ing
NSD.
no
a. Check regulator on Circuit
None.
as
circuit
Solenoid.
c.
rotor Low
b.
RPM.
Board
CR4 for
of
Check
output
Q6.
A+
for
open
Check C8 for condition on 81D715. a. Check inverter circuit board (81D715).
b. at a.
open
Check
3.
Ql. condition.
at
out
1. Check R1 and R2 for open or short condition. A+ 2. Check for
81D460 follows:
Replace
Replace
Replace
Replace
CS.
Q6.
CR4.
Q1.
R1
or
Gyro
Rotor
necessary.
Replace complete Assembly. Rebalance
Replace R2.
or
of
None.
REMEDY
a. Incorrect voltage.
out
or
52D189-All)
as
Gyro
bearings
.
P/N
ISOLATION PROCEDURE
(NSD
balance.
b.
a. Rotor shaft.
the
are with the NSD cover removed and therefore must be conducted in a "Clean Room" environment to prevent contamination of the interior of
procedures performed
CAUSE
Troublesh
PROBABLE
3-8A.
o
o
Compass
3
continuously.
rotates
TROUBLE
STEP Card
Table
b. Motor
a. Azimuth circuit.
cing
circuit.
reference
CAUSE
Troublesi
PROBABLE
3-8A. P/N
open Check
(-),
the
short or
condition. C1 & C2 d. Check open for condition. e. Check IC1B. Check R3 f. and open R4 for or short condition. g. Check IC1A.
IC1A.
Replace
or
1C1B. R3 or
C1
Q4 Q3.
IC2B.
Q7 Q5.
Replace Replace R4.
C2.
Replace
resistor.
Replace defective R5 R6 R7 open
for & R9
Check
c. R8
Replace
and/or
Q4 & Q3
(+)
Replace
resistor.
Replace and/or Replace defective
REMEDY
on 81D460.
b below. Check
b.
proceed
from
terminal indication
Board/ Assy (Fig. & Test
of
IC2B. a VOM
ring
to to
Fixture 13. If changes
3-21)
Brush
Circuit
output
a. Connect between
d.
condition.
or
ground. If A+ is absent, proceed to b below. b. Check Q7 and Q5 on 81D460. c. Check R16 R17 short & R18 for
terminal
§ Fixture 13 to
A+
52D189-All)
ISOLATION PROCEDURE a. Measure from Test
(NSD
c.
o o
os oo
Heading
4
voltages.
Warning
Flag fails to come into view at specified
TROUBLE
STEP
Table
b.
Solenoid
position.
Heading Flag sticking
spring.
in
Warning
Support
c. Diode Assembly.
a.
CAUSE
Troubleshausing
PROBABLE
3-8A.
UP
P/N
52D189-All)
Q1 on down
move (in
Assembly.
Diode
check
in remains D1
Check adjust pots on 81D715 PCB & then spring tension. If flag in view drops before voltage is to 10 or reduced 20 Vdc spring may be weak. If flag not drop does into view by the time the voltage is reduced to 9 or 18 Vdc, spring is too strong.
position view) that and check flag is not bent.
Support Manually to flag
&
constant
indication 3b-a step
ISOLATION PROCEDURE R10 h. Check R11 R12 R14 & R15 for open or short condition. IC2A. i. Check If voltage
(NSD
flag
when
out
that
stays adjust Flag
Q1.
D1
IC2A.
of
replace spring.
pots
solenoid is engaged & in such a manner that does flag not strike when bezel deflected. Adjust or
view
Heading stop so is flag
in view
If
and/or
Replace
Replace
REMEDY
v:
o
U2
oo
os
not
7
6
fails
Card
one or both directions.
deflect full scale
to
pointer
Left/right deviation
drift.
exceeds specified
Compass
center.
not deflect to or fails
b. Slaving meter does
slave.
does
in
CAUSE
Block
Meter.
Coil.
Rotor.
a. Brush Assembly.
Gyro
Slaving
Slaving
Card
a.
5 Compass
PROBABLE
Troublesho
TROUBLE
3-8A.
STEP
Table ting
an open
the
or
R22 short
b In step brush are 5 and 8 respectively.
No.'s
below,
contact.
brushes cleanliness, brushes, and Check
NOTE
good
for bent
a.
None.
for
bad and
condition. c. Defective meter. slaving
open
soldering breaks. b. Check
insulation,
coil is slaving defective. a. Check wiring for correct open connections,
circuit
indicates
measurement
Block
Repair
Rebalance Gyro.
Replace
Replace
replace wiring.
Repair
slaving
resistance K
Replace
Test between terminals Fixture K & F & between & D. If
REMEDY
52D189-All)
ISOLATION
P/N
PROCEDURE Measure
(NSD
Assy.
Brush
meter.
R22.
or
coil.
c
V3
oo
om
specified.
as
NAV flag fails to
9
operate
flag fails to deflect full scale in one or both directions.
To-From
TROUBLE
8
STEP
Table
Left|Right
c. Brush
To-From
a.
Brush
b.
a. Circuit 81D715.
b.
Block
Meter.
Block
Assy.
Assy.
Meter. Board
CAUSE
Troubleshwating
PROBABLE
3-8A. P/N
52D189-A11)
for
Circuit
at
solder
Board•
Wiring
open
Check
for between brushes No. 6 & 4 on Brush Block Assy to Test Fixture terminals 31 and 32 respectively.
continuitY
b.
for open meter• a. Check brushes for cleanliness, bent brushes and good contact· Check
connections.
Circuit Board. Check for continuitY between brushes No.4 and 2 and To-From Meter
b. Check connections
to
meter• a. Check
Check
respectively.
PROCEDURE b. Check continuitY between brushes No. 3 and 6 on Brush Block Assembly and Test Fixture Terminals 17 and 18,
ISOLATION
(NSD
Assy.
Brush
or
Circuit
or
Left/ Meter.
Assy..
Brush
Replace Block
Assy.
Brush
ToReplace Meter. From Brush Repair Block Assembly.
Block
replace
Repair
Repair Board.
replace wiring.
Replace Right Repair
Replace Block
REMEDY
o
È
V
cm oo
12
11
Glideslope
10
Warning
deflect scale
fails
specified.
function
Heading fails
to as
pot
fails flag operate as specified.
G|S
full
to
pointer
TROUBLE
STEP
Table
to
NAV Meter.
Heading
Pot
Pot,
Warning
b. Heading Assembly.
a.
b. G|S Meter.
warning
Glideslope
a. G|S resistor.
b.
a. Glideslope resistor.
b.
CAUSE
Troubles.
PROBABLE
3-8A.
Brush
Flag
flag
Meter.
ing P/N
Check
b.
terminals
Test
for
voltage 1 or heading
to that
open
Output
voltage
indicates null A+. supply
b.
or
2
open
b. Measured voltage is supply A+. Repair Heading Pot Brush Assy.
index.
a. Check determine measured is within volts at
meter·
for
30 & meter. Check resistor
on meter or short condition. Check of
b.
29,
continuity between Fixture
Check
Pot.
null index.
Heading
Flag
G|S
or
or
NAV
Replace Pot Heading Brush Assy.
Replace Heading
Pot for heading
Adjust
Meter.
Warning
Replace
resistor.
Replace
wiring.
replace
a.
Replace Glideslope
open
resistor.
Replace
wiring.
replace
Meter. Repair
for
resistor for open
& meter.
terminals
Test
for
Replace Meter. Repair
REMEDY
meter.
Check
condition.
on meter or short
28
27,
between Fixture
meter. a. Check continuity
open
52D189-All)
ISOLATION PROCEDURE Check for
(NSD
c
o
oo
om
14
as
resolver to fails function as specified for EZ. ORZ and
Course
pot
to
Course
13
fails function specified.
TROUBLE
STEP
Table
Course
Course
b.
Rotor
a. Slip Assembly.
Assembly.
b.
a.
or
Ring
Pot
ing
Brush
Brush
Stator.
Pot.
CAUSE
Troublesk
PROBABLE
3-8A. P/N
2
None.
26.
for b. Check continuity between slip and Test rings terminals Fixture and 23, 25, 24,
A+. a. Check brushes for cleanliness, bent brushes and good contact. b. Output voltage indicates null or A+· supply a. Check brushes for cleanliness, brushes bent and good contact.
supply
1 or heading
voltage
is
Measured
voltage
b.
measured is within volts at index.
PROCEDURE a. Check determine
to that
52D189-All)
ISOLATION
(NSD
Course
Slip Brush
Center
or Section or Shaft/Meter as Assembly applicable.
replace
Repair
Replace slip Assembly. Ring
Assembly
Ring
Repair
Assembly.
Replace Course Brush Pot
Repair Course Pot Brush Assembly.
Replace Pot.
index.
Adjust Course Pot for null at heading
REMEDY
o
os o o oo
Section
68S304
B
III
o
O CR-1
Y
01
C
A
o A
B
Figure
3-21.
Diode
Support
Assembly
C
-
Schematic
Page
3-128
68S304
Section
III
5 COMPAss
AOSE
Og FLUX DETECTOR ALIGNMENT
FLUX 1.Align 2.Observe
N.S.D.
3.Record 4.Move record
with
aircraft
5.Deviations
in Figure reduced
DETECTOR
magnetic
deviation
O
DETECTOR
ALIGNMENT North.
for
the at
alignment
3-22.
analysis.
four cardinal each heading.
N-S that from :"cross" E-W "cross" 4, or frim the Flux by moving Detector
Figure
CARO
heading.
through
aircraft
the
FLUX
heading
N.S.D.
ANALYSIS
NSD NDICATES
Flux
Detector
headings
the N-S line the E-W line,
and
as are
shown
Adjustment
Page
3-129
III
Section
68S304
NSD INDICATES 357
COMPASS AOSE
ANALYSIS CARD
COMPENSATOA (Remove cover from 1C714, Amnlifier or 1C722 Slaving access to Compensators.)
COMPENSATOR
with
aircraft
1.Align
3.Record
N.S.D.
aircraft 4.Move deviation.
that
5.Deviations
reference are west adjusting Figure
3-23.
ADJUSTMENT
magnetic
North.
heading
for
through
four
alignment
analysis.
cardinal
headings
on the same side when both North N-S for line, instance) N-S adjusting screw on
line of the
the
for
heading.
N.S.D.
2.Observe
1D755,
occur (i.e.,
Slaving
System
Ground
of
and
the
record
particular
and South headings are reduced by the compensator.
Adjustment
Compensator
Adjustment
Page
3-130
Section
68S304
Section
ILLUSTRATED 4-1.
General
4-2.
This
for and
IV
IV
PARTS
BREAKDOWN
contains Illustrated Parts the Breakdown NSD-360 Flight Systems, Inc. Air Century Driven, NSD-1000 52D189-1, (52D189, 28 Vdc, and 14 Vdc) Situation Navigational Driven, Display (NSD).
section
the the
Electric 4-3.
Illustrated Parts Illustration shows Breakdown a as the NSD exploded with of an view, an portion Index part each shown Number for or assembly in disassembly These Index Numbers with the order. key Illustrated Breakdown List and found in the Parts are parts list headed Index The Description column Number. column nomenclature for the item indexed. gives the identifying Number column gives part number for Part the the The gives the number and the NO.Required column of item per assembly required or part, but not items necessarily number required per NSD. the total of parts Where specific use information is indicated applicable, by a above the part number affected. symbol in parenthesis absence of specific use symbols above number The a part the part indicates that is common to all NSDs. The symbols legend used section of the manual of all in this appears at the end of the explanation.
4-4.
assemblies All assembly listing,
Each
to
Listing,
are
cross-referenced
where
their
break-down listing higher assembly)
they
break-down back to listing.
first
the
both appear listing, major
the the
from
in and assembly
major Parts
the
from
(next
4-5.
A "No Number" designation when used in the Part Number indicates column not as the unit is available an This used designation is only for the assembly. of division convenience and clarity in cataloging.
4-6.
(e.g. la, listed is part basic Index the assembly indexed Number. The by the required of indexed by the number the part number and combination one of letter is for the assemblies only indexed basic Number and not by the Index necessarily number of parts Where the the total used in the NSD. notation "Ref" occurs No.Required column the in the number assemblies required in the of or parts for use or NSD will be found under Index Number in a previous next higher The next higher the assembly listing. When
lb, of
an etc.),
Index
the
Numer letter
is
followed
indicates
by
the
a
letter
part
Page
4-1
IV
Section
68S304
is
number, immediately
Figure/Index column
listing, Description
the
in
shown
the
following
items
description. 4-7. 4-8.
HOW TO USE To
turn
THE
ILLUSTRATED
number the part index and the
find
to
Parts
Illustrated part. and the
or
the
number index number in index
the to determine part. List.
the
See
Figure
of a find
Breakdown
to
Turn
required
indicated page on the specific
the
complete 4-12,
4-10.
assemblies or When ordering error in shipment, delays and description shown complete quantities each of assembly number include the part and the for which or part the assembly
4-12.
The
ASSEMBLIES
number and right-hand
the
legend
of
symbols
OR
part, of the assembly the part
the
Find
Breakdown list the assembly or Illustrated Parts
PARTS
of
in
to
parts,
the the
give in or
avoid
costly
is
and
required. number of required.
the this
of
the
the
Also NSD
NSD can cover.
instrument section
the the
number,
part list,
part serial
number
serial side used
or
illustration. Parts of
Illustrated description How To Use
HOW TO ORDER
The part found on
assembly number of the and locate
the page illustration
4-9.
4-11.
BREAKDOWN
PARTS
of
the
manual
is: (a) (b) (c) (d) (e) (f)
52D137-1332 52D137-1333 52D137-2331 52D137-2334 52D137-1020
(h)
52D137-1120 52D137-1220 52D136-0010
(i)
52D136-0020
(j)
52D136-0110 52D136-0210 52D136-0120 52D136-0220
(g)
[k) (1)
(m) (n) (o) (p) (q) (r)
52D136-1020 52D136-1120 52D136-1220 52D189-( 52D189-1
)
Page
be
4-2
Section
685304
IV
9-
Figure
4-1.
Navigation
situation
Display,
NSD
Page
4-3
Section
685304
Figure
4-1.
INDEX NO.
DESCRIPTION
Navigation
Navigation NSD-360A,
Situation
PART
Situation 3-Inch,
Display, Slaved, with Complete Attaching Parts 4-1) Figure (See
Situation
Navigation NSD-360A,
Display, Slaved, with Complete Attaching Parts 4-1) Figure (See 4-Inch,
Navigation
Situation Display, Complete Slaved, Parts (See Attaching 4-1)
NSD-360,
with Figure
Navigation
Situation Display, Complete with Parts (See Figure
NSD-360,
Attaching
NSD-360
Display,
4-1)
and
NO.
IV
NSD-1000
NO.REQUIRED
N/A
52D137 -1332
-1333
N/A
52D137 -2331
-2334
N/A
52D137 -1020
-1120
-1220
52D136
N/A
-0010
-0020
-0110
-0210
-0120
-0220
-1020
-1120
-1220
Navigation
Situation Slaved,
NSD-1000,
with
1
4-1)
Spring
Latch,
Receptacle
Part
2
9S92 4-5/10)
Finished
part,
attaching
Cover
Button 6-32
415139
2
81C347-1
1
3S527
2
(See
Head,
x 1/2 (c)
Finished
Cover Cover
(d)
15C324-2
(h) Finished
N/A N/A
)
2
Index
Screw,
No.
of
P/N
Figure/Index
52D189-( 52D189-1
(see
parts
attaching
Figure
Display, Complete
thru
15C290-2
1
(p)
Page
4-4
68S304
Section
Figure
4-1.
INDEX
DESCRIPTION
Navigation
Situation
NSD-360
Display,
PART
and
IV
NSD-1000
1 NO.REQUIRED
NO.
NO. 3
Finished
Card
Set
attaching
part,
Setscrew,
No.
Finished
Course
Knob
Index 4-40
s
36A148-1
1
3S326
1
3
x 3/16
(a) 4
5
attaching
part,
Setscrew,
No.
Front
Bezel
Index 4-40
x 3/16
3S326
2-56
Head,
Black,
No.
(b) 1
x 7/16
Front
Bezel
Assembly
Hex,
Screw, 4-40
x
Cap, 1/2
Flat
Screw,
No.
Head, 2-56 x
3S82
6
3S307
(f) (o)
x
Flat 1/2
Head,
(h) (n) 4
1/4
thru Screw, 2-56
(r) 1
(i) Black
(d)
81B333-3
(e)
Black
No.
(g) (j) (m)
(p)
3S529
(a) 5a
1
)
3S551
(c) (q)
No.
1
5
(a) Flat
Screw,
1
81B333-(
Index
(j)
36A149
4
Assembly
part,
attaching
thru
(r)
Knob
Set
4
(b)
Finished
Front
Bezel
15C328-1
Finished
Front
Bezel
15C328
Finished
Front
Bezel
15B326-1
(q)
(c)
1
(r) 1
(d) 1
Page
4-5
68S304
Section
Figure
4-1.
INDEX NO.
DESCRIPTION
Navigation
Situation
NSD-360
Display,
PART NO.
(e) Finished
Front
Bezel
15C289-1
Front
Bezel
15C283-1
(a) (q)
Lighting
Wedge
Glass
Wedge
(n)
Bezel
G|S
1
(d)
thru thru
1
(g) (p) 1
(m) 1
(f) (g) (o) (p) 61A12-1
Glass
(j)
Seal
1
(b) (r)
(h) thru 61A13
Window
thru
61A13-1
Window
Modified
(p)
61A12
Glass
Modified
1
61B24-1
(e) Bezel
thru
(m)
61B23-1
(c) Instrument
5d
thru
Bezel
Internal
(g) 1
Front
(n)
5c
(f)
(h) thru 4A267
Washer
Mask
Warning
attaching
NSD-1000
NO.REQUIRED
15C283
(h)
5b
and
IV
1
(m) 1
(p) 2
(a) (b) (r) (q) 34A74
1
38414
2
part, Index
5d
to
Binder Screw 0-80 No. x
5a
Head, 1/16
(e)
(i) 6
Gasket
(h) (n) 1
32B44
Page
4-6
68S304
Section
Figure
4-1.
INDEX
DESCRIPTION
NSD-360
Display,
Situation
Navigation
PART
and
IV
NSD-1000
NO.REQUIRED
NO.
NO.
(g)
(f)
(j)
thru
(o)
(p)
32B44
Gasket
2
(j)
(f) (1) 7
Internal Bezel
Lighting Assembly
(o)
81C87
1e
(k) (p)
(g) (m) Lighting
Internal
81C87-1
Bezel
thru
(a) 8
(m)
Bottom
Plate
Bottom Index
Plate
64B160-1
Part,
(p) 1
(r)
(q) attaching
1
64B347
1
Binder Head, Screw, 2-56 No. x 1/4
3S208
2
Binder Head, Screw, 2-56 No. x 3/16
3S279
4
Sa
Heading
81B372
1
8b
Course
81B372-1
1
Sc
Screw
3S61
4
8d
Washer
4S16
4
9
Chassis/Bezel 4-2) Figure
8
Belt
Tension
belt
Assembly
(See
No
Number
1
Page
4-7
68S304
Figure
Section 4-1.
Navigation
Situation
Display,
NSD-360
(a)
52D137-1332
(i)
52D136-0020
(b)
52D137-1333
(j)
52D136-0110
(c)
52D137-2331
(k)
52D136-0210
(d)
52D137-2334
(1)
52D136-0120
(e)
52D137-1020
(m)
52D136-0220
(f)
52D137-1120
(n)
52D136-1020
(g)
52D137-1220
(o)
52D136-1120
(h)
52D136-0010
(p)
52D136-1220
(q)
52D189-()
(r)
52D189-1
and
IV
NSD-1000
Page
4-8
68S304
Section
Figure
4-2.
Chassis/Bezel
IV
Assembly
Page
4-9
68S304
Section 4-2.
Figure
INDEX NO.
PART Assembly 4-1/9 for
Chassis/Bezel
Figure/Index assembly) 1
G|S
Meter Assembly 1 Index
part,
Cap, Screw, 4-40 x 1/4
Screw, Socket
(See higher
attaching
Socket
Head,
No.
G|S
to
Cap,
No Number
NO. REQUIRED Ref
No
1
Number
(a)
(b)
(q)
(r)
Mounting Index 1
No.4-40
2
(c)(d) 3S90
2
43A543
2
x
attaches
Bracket
7A1282
1
No.4Nylon Flat Head
3S521
1
3/16
3S517
1
(a) (h)
2
(p)
Head
Flat Head, Screw, 40 x 3/16 Screw,
lb
NO.
thru (e) 3S207
Spacer la
Assembly
Chassis/Bezel
DESCRIPTION
IV
thru thru
(d)
(r)
G|S
Meter
52C162-1
1
G|S
Meter
52B90-2
1
Circuit Printed attaching Assembly 6e Index 2 to
Binder Screw, 1-72 No. x 1/4
Spacer
Board
Head,
(a)
(b)
(q)
(r)
81B189
1
Part,
thru (a) 3S459
(d)
(a) thru 43A553
(d)
2
2
Page
4-10
Section
68S304
Figure
INDEX
4-2.
Chassis/Bezel
DESCRIPTION
IV
Assembly
PART
NO.
NO.
REQUIRED
NO.
(d) (c) 81B190
Board
Circuit
Printed
1
Assembly (a) 2a
Lamp,
Unbased,
T1,
14Vdc
65S54
Lamp,
Unbased,
T1,
14Vdc
65S54
(c)
Printed
3
Finished Airplane/Hdg Assembly Index 3
fh)
Binder Screw, Head, 1-72 No. x 1/8
Finished Airplane/Hdg Assembly Index 3
Black,
Miniature Reference
(r) 1
attaching 6e
(b)
(r)
thru
(p)
3S339
3
(b) 81B180-2
1
81B173-1
1
part,
to
Black
(c)
Binder
Head,
(d) 2
3S339
(c) X
1
Assy
Miniature Reference
Binder Head, Screw, 1-72 x 1/8 No.
Screw,
(r)
part,
(q)
Airplane/Hdg
8
to
(a)
Finished
(d)
(a) (q) 81B180-1
Miniature Reference
attaching 6e
6
thru (a) 27B244-1
Board
Circuit
2b
(b)
No.
1-72
(d)
3S557
1
(d) 81B173-2
1
1/16
Finished Miniature Airplane/Hdg.
Page
4-11
68S304
Section
4-2.
Figure
INDEX
Chassis/Bezel
Assembly
DESCRIPTION
PART
Finished Miniature Airplane/Hdg.
81A40-1
NO.
NO. REQUIRED
NO.
thru
(e)
4
Heading attaching Setscrew, 2-56
No. 4a
Warning
part,
Flag Index
Assembly
1
3S140
1
42A262
1
x 3/32
Clamp
Heading
Warning
Flag
Heading
Warning
Flag
(b)
81B114-2
81B172-1
(f) (o)
(n) Heading
Warning
Flag
81B114-1
Heading
Warning
Flag
81B113-1
thru
(h)
Screw,
No.
5a
5b
Center
part, Binder
1-72
Slaving
Mask Index
Head,
No
Assembly
5 Black,
to
(r) 1
(d)
(e)
Finished attaching
1
No Number
(c)
5
(p)
4
(a) 4b
IV
1
(g) (p) 1
(m) 1
Number
1
6e
1
3S339
x 1/8
thru (a) (r) (q) 52A32
meter
(a)
(b)
(q)
(r)
(g) 1
Finished
Center
Mask
34B59-5
1
Finished
Center
Mask
(c) (d) 81B175-1
1
Finished
Center
Mask
(e) (f) 34B59-2
(g) 1
Page
4-12
68S304 4-2.
Figure
INDEX
Chassis/Bezel
Assembly
PART
DESCRIPTION
NO.
NO. REQUIRED
NO.
Finished 6
IV
Section
(h) thru 34B58-1
Mask
Center
(a) (q) (e) Cap,
1
15B352-2
Bezel Assembly part, attaching Index 6
Screw,
(p)
Socket,
1
(b)
(r)
thru
Button
35514
Button
35514
Button
35515
(p) 6
Head, No.
4-40
x
1/4 (c)
Cap,
Screw,
Socket,
(d) 2
Head, No.
4-40
x
1/4 (c)
Cap,
Screw,
Socket,
(d) 4
Head, No.
4-40
x
3/8
(c) Lockwasher, No.
Internal,
6a
Flag Assembly Index 6a G|S
(d)
4S40
4
4
Meter Bracket part, attaching to 6
No
Number
(a) (q) (e)
(b)
(r)
thru
(p)
Binder Head, Screw, 2-56 x 3/16 No.
38131
Flat Screw, 1-72 x No.
35554
2
(c) (d) 46A242
1
(c)
6al
1
Mounting
Head, 3/16
Block
2
(d)
Page
4-13
68S304
Section 4-2.
Figure
INDEX
Chassis/Bezel
Assembly
PART
DESCRIPTION
NO.
NO. REQUIRED
NO. 6a2
Resistor, 1/8 Watt,
6R229
ohms,
806 1%
(a) (q) 6a3
G|S
Meter
Flag
IV
attaching
1
thru
(d)
(r)
52D164
1
3S530
2
part, Index
to
6a3
Flat Screw, 2-64 No. x
Head, 1/8
thru (e) 52B128
(p)
(r)
Bracket
(b) (a) (e) thru 7A1555
Bracket
7A1505
1
81C75
1
3S339
2
46A245
1
43A501
2
G|S
6a4
6a4
Flag
Meter
(c)
6b
Solenoid
Index Screw, No.1-72
attached
Assembly
to
1
1
(d)
6
Binder
Head,
x 1/8
6c
Heading Warning Flag Stop
6d
Bearing,
6e
Bezel
(b) (a) 15B352-1
1
Bezel
(c) (d) 15B351-1
1
Bezel
(e) (f) 15B282-4
Bezel
(h) thru 15B282-1
SFR31
(g) 1
(p) 1
Page
4-14
Section
68S304
4-2.
Figure
INDEX NO.
Chassis/Bezel
Assembly
PART NO.
DESCRIPTION
(q)
Course
7a
Gear
7b
Retainer,
8
Index
attaching
Flanged
Washer, Set
Card
Assembly
Shaft
part,
Index
Set
1
47A264
1
44A122
i
43A494
1
3S381
1
4A253
1
47A264
1
(a) thru 44A134
Assembly part. attaching Screw Guide
Bushing, attaching
(r)
15B352-2
8
Gear
Set 8b
Bushing 7a
Screw
attaching
8a
Assembly Index 7
part,
Assembly
Port Set
Shaft
Set
attaching
7c
NO.
REQUIRED
Bezel 7
IV
(p) i
3S381
3
43A895
1
3S381
1
part
Screw
Sc
Spring
41A129
1
8d
Clutch
45A79
1
8e
Retainer, part
43A494
1
3S381
2
41A129-1
1
81C81
1
Set 8f
9
Bushing
Attaching
Screw
Spring Circuit
Figure
Board 4-6)
Assembly
(See
Page
4-15
68S304 4-2.
Figure
INDEX NO.
Chassis/Bezel
Assembly
PART
DESCRIPTION
NO.
(r)
(q)
1
Binder Screw, Head, 2-56 No. x 3/16
3S131
2
Binder Head, Screw, 4-40 No. x 5/16
3S164
1
4S248
1
Figure Index
9
to
(See
Assembly
attaching
part,
17
Washer,
Mica
Printed Assembly
Circuit (See
Printed Assembly
Circuit (See
Figure
Printed Assembly
Circuit (See
Figure
thru
(a) Figure
Pig
Tail
thru
81B107-3
Board
Index
Binder x 3/16
Head,
thru
Internal,
Cable
Clamp
1
30C499
thru
(g)
(r)
32S80
1
thru (r)
(g)
4S40
(a) (q)
lla
(g)
(r)
11
(a) (q) Lockwasher, No. 4
1
81D715
(a) (q) Screw, No.4-40
1
4-8A)
Assembly
part,
(p)
4-8)
Board
Cable
attaching
1
4-7)
(a) (q) 11
(d)
81B107-2
Board
(e) 10a
NO. REQUIRED
81C460-1
Board 4-6A)
Circuit
10
IV
Section
1
thru (r)
(g)
42A266-1
1
Page
4-16
Section
68S304
4-2.
Figure
INDEX
Chassis/Bezel
Assembly
DESCRIPTION
PART
Plug,
28S77
1
81B80
1
81C454
1
NO.
NO. REQUIRED
NO.
thru
(a) 11b
Pin,
9
Amphenol 12
IV
126-1080
P/N
Board/Brush
Circuit
part,
attaching
(g)
Index
Assembly 12 to
14 Screw,
No. 13
Flat
x
to
13
Cap,
4-40
x
Lockwasher, No. 4 13a
Screw,
Flat
1
3SS15
1
4S40
1
43AS10
1
3S278
1
Bracket
7A1284
1
Block
46A222-1
2
3S90
2
part,
17 Button
Socket, 3/8
2-56
x
part,
Tensioner
Belt
14
Brush Mounting attaching part, 12 and 17 Cap,
Index
Head, 3/16
13b
Screw,
No Number
Bracket
attaching 13b
4-40
2
Internal,
Bearing 13a to
No.
3S361
attaching
Screw, Head,
No.
5/16
Tensioner
Assembly
Index
Index
Socket
14
to No.
Head,
x 3/8 (a)
15
Element Assembly part, Index attaching 4-9) (See Figure 17
Gyro
Screw,
4-40
(r)
(q)
3-48
Belt
Head
Cap,
x 3/8
Socket
thru
(g)
81C48 15 Head,
1
to No.
4 3S90
Page
4-17
68S304
Section 4-2.
Figure
INDEX NO.
Chassis/Bezel
Assembly
PART
DESCRIPTION
16
Gyro Figure
Element
Gyro Figure
Element 4-9A)
Belt
Belt
1
Assembly
(See
(r) (q) 81D712
1
Pulley
part,
Index
Assembly 16
(a) thru (r) (q) No Number
to
16a
Timing
x
part,
3
(g)
thru
(g)
1
(r)
3S474
3
3/32
Belt
Pulley
Chassis/Center
Assembly
(g)
16b
Head,
Flat 0-80
(r)
1
(a) thru (r) (q) 7Bl375
(a) (q) Screw,
thru
(g)
3S539
attaching
Guide
Index
17
(p)
81C47
4-9)
Timing attaching
No.
thru
(See
Bristol Setscrew, Pt., Head, Cup 0-80 No. x 1/8
16b
NO.
Assembly
(a) (q)
16a
NO.
REQUIRED (h)
15a
IV
(See
Section Figure
Gear
(a) thru (r) (q) 44A125
(g) 1
No Number
1
4-3)
18
Transorb
1
19
Standoff
2
Page
4-18
68S304
Section Figure
(a) (b) (c) (d) (e) (f)
(g) (h)
4-2.
52D137-1332 52D137-1333 52D137-2331 52D137-2334 52D137-1020 52D137-1120 52D137-1220 52D136-0010
Chassis/Bezel
IV
Assembly
(i)
(j) (k) (1) (m) (n) (o) (p)
(q) (r)
52D136-0020 52D136-0110 52D136-0210 52D136-0120 52D136-0220 52D136-1020 52D136-1120 52D136-1220 52D189-( 52D189-1
)
Page
4-19
68S304
/
j'
j'
*J */o
out
9e O
68S304
Section
4-3.
Figure
INDEX NO.
Chassis/Center
PART
Chassis/Center
1
Brush
Index
4-
Figure/Index higher
thru (a) 39A44
part,
attaching
Block 1 to
NO. REQUIRED Ref
(d) 1
10
Binder Head, Screw, 1-72 x 5/16 No.
3S344
2
Shim
4A201
A/R
Brush 2
next
NO.
No Number
Section
(see
Assembly for 2/17 assembly)
Assembly
Section
DESCRIPTION
IV
Support
Bearing
Bracket
to
1 1
4-40
2S14
1
Internal
4S40
1
part,
10
No.
Hex,
(p)
81B74
attaching
Assembly Index 2 Nut,
(e) thru 39A34
Block
Lockwasher, 4
No.
2a
Flat Screw, 4-40 No. x
Head, 1/4
3S514
1
Flat Screw, 2-56 No. x
Head, 1/4
3S66
2
43A511
1
3S278
1
7B1350-1
1
No
1
attaches
Bearing
Flat
Screw,
2-56
No. 2b
Bearing
3
Center Figure
Index
Section
4-4) 3
x
to Cap,
Index
2
Head, 3/16 Bracket
Support
Screw,
40
x
to
Assembly attaching
(See
Number
part,
10 Socket
Head
No.4-
3S207
2
1/4
Page
4-21
68S304
Section 4-3.
Figure
INDEX
Chassis/Center
DESCRIPTION
Section
Assembly
PART
NO.
NO. REQUIRED
NO.
Flat
Screw, 4-40
No.
4
Slaving
5
Gyro
6
Shaft
7
7b
Belt Belt Mounting
Center
2
(a)
thru
(q)
(r)
(g)
30B435
1
30B437
1
30B436
2
No Number
1
43A501
2
Assembly
SFR31
Bearing,
Terminal
Board
attaches
to
Pan
Screw,
No.
35514
x 1/4
Belt
Block 7a
Head,
IV
2-56
(a)
thru
(q)
(r)
31A52-1
Insulator
7d
Center
8
Bearing Bracket
Head,
(a)
thru
(q)
(r)
35494
8
(g)
Block
46A223-1
1
Assembly
No Number
1
Nut,
2S46
2
Internal,
4S16
2
3S66
2
43A511
1
to
10 2-56
Lockwasher, 2
thru
1
Support
No.
2
14A157
part
attaching
Index
(g)
x 1/4
Mounting
Hex,
1
7
Index
(a) 7c
(g)
No.
Flat Screw, Head, 2-56 No. x 1/4 8a
Bearing
part,
attaching Index
Sa
to
8b
Page
4-22
68S304
Section
Figure
INDEX NO.
4-3.
DESCRIPTION
Assembly
Section
PART
NO.
NO.
REQUIRED Flat Screw, 2-56 No. x
8b
Bearing
9
Capacitor,
10
Chassis/Center
IV
Head,
3S278
1
Bracket
7B1360
1
50V
21S118
1
3/16
Support imf,
Chassis Assembly 4-5) (See Figure
52D137-1332
No
Number
(i)
52D136-0020
(j)
52D136-0110 52D136-0210
(a) (b) (c) (d)
52D137-1333 52D137-2331
(k)
52D137-2334
(1)
(e)
52D137-1020
(f)
52D137-1120 52D137-1220 52D136-0010
(g) (h)
1
(m) (n) (o) (p) (q)
(r)
52D136-0120
52D136-0220 52D136-1020 52D136-1120 52D136-1220
52D189-(
)
52D189-1
Page
4-23
68S304
Section
IV
7
Figure
4-4.
Center
Section
Assembly Page
4-24
68S304 4-4.
Figure
INDEX NO.
Section
Center
DESCRIPTION
Assembly
PART
Section Assembly 4-3/3 for Figure/Index higher assembly)
Finished attaching
R/L
_No
(See
Pointer
part,
Index
Number
0-80
x
(b) (r)
52B157-2
1
3S414
2
1/16
(c)
(d)
Finished
R/L
Pointer
52Bl53-2
Finished
R/L
Pointer
52A131-1
(e)
(a) Finished
part,
R/L Tail Index 2
attaching
Binder Head, Screw, 0-80 No. x 1/16
thru
3S414
2
(c)
(d)
52A150-2
Finished
R/L
Tail
52A132-1
Finished
R/L
Tail
52A169-2
Finished
Heading
(e)
(q)
(a) Index
Screw, Binder Head, 0-80 No. x 1/16
3
to
1
1
Tail
part,
(p)
(b)
R/L
Bug
1
52A154-2
Finished
attaching
Ref
1
Head,
Binder
Screw,
No.
3
NO.
next (a) (q)
2
NO.
REQUIRED Center
1
IV
Section
thru
1
(p) 1
(r)
(q)
1
(r)
52A135-3
1
3S414
1
6
(b) Finished
Heading
Bug
52A135-2
1
Page
4-25
4-4.
Figure
INDEX NO.
IV
Section
68S304 Center
Assembly
Section
DESCRIPTION
PART
NO.
NO. REQUIRED
(c) Finished
Heading
Bug
52B146-2
1
Finished
Heading
Bug
(d) 52B146-3
1
Finished
Heading
Bug
thru
.(e)
4
Compass
Finished
52A135-1
Card
Index
to
(a)
(b)
(q)
(r) 1
3S140
3
part,
Setscrew,
No.
Finished
Compass
Card
34B66-1
Finished
Compass
Card
thru (e) 34B60-1
2-56
x 3/32
10
(c)
5
Wave
6
Heading
7
Clutch
8
Course
part,
Washer
Pot Washer
Pot Index
10
Wave
Assembly 8
No.
Setscrew,
9
Assembly
to
attaching
1
34B60-24
attaching
4
(p)
(d) 1
(p) 1
4A250
1
81B63
1
4A252
1
81B64
1
3S381
2
4A251
1
10
3-48
Washer
x 3/32
(a)
thru
(q)
(r)
Center
Drum
Assembly
81B88
Center
Drum
Assembly
(h) thru 81B61
(g) 1 (p) 1
Page
4-26
68S304
Section
Figure
4-4.
Center
Assembly
Section
PART
INDEX NO.
DESCRIPTION
11
Shaft/Meter (See Figure
Assembly 4-11)
81C98
Shaft/Meter
Assembly
81C198
Shaft/Meter (See Figure
Assembly 4-11)
81C60
(a)
(q) (h)
(a) (b) (c) (d) (e) (f)
(g) (h)
52D137-1332 52D137-1333 52D137-2331 52D137-2334 52D137-1020 52D137-1120 52D137-1220 52D136-0010
IV
(i)
(j) (k) (1) (m) (n) .(o)
(p)
(q) (q) (r)
NO.
thru
NO. REQUIRED
(g) 1
(r)
thru
(p) 1
52D136-0020 52D136-0110 52D136-0210 52D136-0120 52D136-0220 52D136-1020 52D136-1120 52D136-1220 52D189-( 52D189-( 52D189-1
) )
Page
4-27
Section
685304
IV
4
Figure
4-5.
Chassis
Assembly
Page
4-28
68S304
Section
4-5.
Figure
INDEX
Chassis
DESCRIPTION
Assembly
PART
NO.
No Number
NO. REQUIRED Ref
81B70
1
2S149
2
4S96
2
3A523
1
43A500
2
3S278
2
Bracket
7B1349
1
Assembly
81B67-1
1
3S278
2
39A36
1
2S46
1
4S16
1
3S278
1
39A38
2
NO.
Assembly 4-3/10 for Index assembly) Chassis
1
Bearing Bracket
to
1
Adjustment
lb
Bearing lb to
Stud
Flat
Bearing
2
Brush
Index
Head,
Support Mounting
part,
attaching
Index
14
Screw,
Nut, No.
part,
x 3/16
Bracket
Brush
Internal,
attaching
56
1c
part,
Index
1
Screw,
No.
2a
part, 6-40
No.
Hex,
la
No.
Assembly
attaching
Lockwasher, No. 6
to
Figure higher
14
Nut,
2
See
next
Support
IV
2-56
Flat Head, x 3/16
Assembly Index 2a Hex, 2-56
Lockwasher, 2
attaching 2
to
x 5/32 Internal,
No.
Screw,
No. 2b
Brush
part,
2-56
Flat Head, x 3/16
Assembly Index 2a
attaching
to
2
Page
4-29
4-5.
Figure
INDEX NO.
Hex, 2-56
PART
2S46
2
Internal,
4S16
2
Flat 2-56
Head,
3S278
2
7B1279
1
41A131
1
2S46
1
4S16
1
3S278
1
29S46
1
81B71
1
3S307
1
43A500
2
3S131
2
4S16
4
7A1283
1
42A269
1
x 3/16
2c
Brush
Mounting
3
Spring 3 to
attaching 4 and 14
Nut,
Hex,
Bracket
Internal,
2
Flat Screw, 2-56 No. x Lug,
Head, 3/16
Solder
Actuator part,
Clutch
attaching
Screw, Flat 2-56 No. x
4a
Assembly Index 4
to
14
Head, 1/4
to
part,
attaching
SR21
Bearing,
Index
Index
part, 2-56
No.
Lockwasher, No.
NO. REQUIRED
2
Screw,
No.
NO.
x 5/32
Lockwasher, No.
4a
Assembly
Chassis
DESCRIPTION
Nut, No.
4
IV
Section
68S304
4b
Binder Screw, Head, 2-56 No. x 3/16
Lockwasher,
Internal,
4b
Clutch
Actuator
5
Cable
Clamp
Index
5
to
No.
Bracket
attaching
part,
2
14
Page
4-30
685304
Section 4-5.
Figure
INDEX NO.
Assembly
PART
DESCRIPTION
Lockwasher, No. 2 Flat
Screw,
No.
2-56
x
1
Internal
4S16
1
Head,
3S78
1
3/16
thru (a) (r) (q) No Number
Transformer
thru
(a) (q) 6a
Bracket,
part,
Mounting Index 6a
attaching 6b and
to
6b
3-48
x
Synchro
Control
attaches
to
0-80
x
Transformer
7
part,
Motor Index
Nut,
Hex,
Gear
Lockwasher,
thru (r)
(g) 2
81B161
1
Head,
thru (r)
(g)
3S283
3
1/8
(a) (q) Lockwasher, No. 0
1
6a
Binder
Screw,
(g)
3S361
(a) (q) No.
1
7A1457
Head, 5/16
Flat
Screw,
(r)
(g)
14
(a) (q) No.
NO. REQUIRED
2S46
Control
Synchro Assembly
NO.
2-56
No.
Hex,
Nut,
6
Chassis
IV
Internal,
Assembly 7 to
attaching
(r)
(g)
4S174
3
No Number
1
2S110
2
4S216
2
14
3-48
Internal,
thru
No.
3
Page
4-31
68S304
Section 4-5.
Figure
INDEX NO.
7a
Clamp,
7b
Motor Index
PART
Flat
Screw, 3-48
Head,
NO.
Synchro Gear 7b
to
attaching 7c
3S361
2
42S217
2
Cup
part,
44A121
1
Point,
3S116
3
x 1/8 (a) thru 59B52
Hico-Maxon,
Motor, 212ON912/150:1
Gear
(a)
8
Cable
Nut
Lockwasher, No. 2 Flat
Screw,
No.
2-56
1
42A269
2
2-56
2S46
2
Internal,
4S16
2
Head,
3S278
2
No.
Hex,
part,
x 3/16 (a)
9
Internal attaching
Assembly Index
Cable
part,
thru
No.
2-56
x 1/4
Head .
9
to
Cable
Assembly
1
14 (r)
30D591
2
3S208
1
(e) Internal
(d)
30D497
(q) Binder
Screw,
1
59B55 attaching 14
Clamp 8 to
Index
(p)
(b) (r)
(q) Motor
Gear
NO. REQUIRED
x 5/16
Setscrew, 3-48 No.
7c
Assembly
Chassis
DESCRIPTION
No.
IV
(f)
(g)
30D451
1
Page
4-32
68S304
Section
4-5.
Figure
INDEX NO.
DESCRIPTION
11
12
Pulley
attaching 12c
to
Amphenol
attaching 14
Index
Head,
part,
Index
13b
Idler
14
Chassis
(r)
thru (r)
No
Number
(a)
thru
(g) 1
(g) 1
(g) 2
4 A26 3S131
2
49A62
2
thru
(g)
(r)
(a) thru (r) (q) 47A269 Pulley
part,
Assembly Index
No
13
2
Idler
13a
to
attaching 13b
Ring Shaft
Assembly
Assembly
(g) 1 1
Number
to
Binder Head, Screw, 2-56 No. x 1/4
Grip
thru
42S98
Shaft
Pulley, Index
1 1
(a) (q)
Ring
Idler
(p)
9892
(a) (q)
to
part,
Binder x 3/16
attaching 14
13a
NO.
5S73
attaching 14
Screw, No.2-56
Grip
13
to
Pin,
(a) (q)
Assembly Index 12
Clamp
12b
12c
36
Rubber
Grommet,
Pulley
(h) thru 30D434
Assembly
Cable
Receptacle, 57-40360 No.
12a
12b
NO.
REQUIRED
part, 12a
Assembly
PART
Internal 10
Chassis
IV
part,
3S208
4
49A60
2
42898
2
81B66
2
81D90
1
Page
4-33
68S304
Section Figure
(a) (b)
(c) (d) (e) (f)
(g) (h)
52D137-1332 52D137-1333 52D137-2331 52D137-2334 52D137-1020 52D137-1120 52D137-1220 52D136-0010
4-5.
Chassis
IV
Assembly
(i)
(j) (k) (1)
(m) .
(n) (o)
(p) (q) (r)
52D136-0020 52D136-0110 52D136-0210 52D136-0120 52D136-0220 52D136-1020
52D136-1120 52D136-1220 52D189-( 52D189-1
)
Page
4-34
685304
Section
10
11
1
13
14
15
16
17
18
IV
19 20
9
6
12
5
23
25
Figure
4-6.
Circuit
Board
Assembly
(81C81)
Page
4-35
68S304
Section
4-6.
Figure
INDEX NO.
Board
Circuit
DESCRIPTION
PART
Circuit Board Assembly 4-2/9 for Figure/Index higher assembly)
§
1
Resistor
R8,
2
Resistor 2%
R13,
7.5k,
R12,
3
Assembly
Resistor
watt,
3.3k,
(See
IV
(81C81)
NO.
NO. REQUIRED
81C81
Ref
6333224
2
next
watt,
2%
§
watt,
6375224
1
3.3
ohms,
4
6103354
1
Carbon
5%,
4
Resistor
R14,
10k,
4
watt,
2%
6310324
2
5
Resistor
R15,
47k,
§
watt,
2%
6347324
1
6
Transistor
48S96
1
7
Resistor
6322424
1
48S97
2
6339024
1
48S83
1
18S49
1
6347124
2
6310424
1
6310222
1
218114
1
488111
2
8
Ql,
2N5192
R3,
Integrated
220k, Circuit
§
watt,
IC
1,
2%
MC1458
9
10
11
Resistor 2% Diode,
Zener
watt,
1N4743A
CR1,
Potentiometer
§
ohms,
39
Rl,
R11,
5k,
Hilitrim
12
Resistor
watt,
R9,
470
4
ohms,
2%
13
Resistor
R6,
100k,
14
Resistor
R2,
1k,
15
Capacity
C1,
16
Transistor 2N4403
.22mf,
Q3, or
Motorola
4 §
watt,
watt,
2% 2%
50Vdc
Fairchild MPS A-55
Page
4-36
68S304
4-6.
Figure
INDEX
Board
Circuit
DESCRIPTION
Assembly
PART
(81C81)
NO.
NO. REQUIRED
NO. 17
Transistor
or
2N4401 18
IV
Section
Resistor
watt,
Q2, Fairchild Motorola MPS A-05 1 megohm,
R7,
1/4
48S110
2
6310524
1
21S95
1
6375324
1
6368224
1
48S43
1
6R346
1
6339224
1
27C202
1
2%
19
Capacitor
20
Resistor 1/4 watt,
R10, 2%
21
Resistor 1/4 watt,
R5, 2%
22
Diode
23
Resistor 2 watt,
24
Resistor 1/4 watt,
25
NSD Servo Amplifier, Circuit Board
C2,
CR2,
.01mf,
50Vdc
75k,
6.8k,
2N4001
R19, 5% R17, 2%
250
ohms,
3.9k,
Printed
Page
4-37
685304
Section
23
5 16 5 19 !8
13
10
2\
14
S
27
2
26
27
18 1
Figure (NSD
4-6A. P/N
IV
Printed 52D136-1333
20
circuit and
3
4
Board 52D137-1332
19
Assembly and
(81C399) -1333)
Page
4-38
68S304
Figure NSD Part
INDEX
4-6A. No's.
Printed 52D136-1333
Circuit
and
DESCRIPTION
Board Assembly 52D137-1332 and
PART
NO.
Board
Circuit
1
P.C.
2
Resistor Metal
1K
9
10
Resistor Metal Resistor Metal Resistor Carbon Resistor Metal
220K
12
13
1
1/4W
6322424
1
2%
6347224
1
6347324
1
6310424
1
6320324
1
6222554
1
6310324
2
6315324
2
6351224
1
6322324
1
6R346
1
Film
47K
Resistor Metal Resistor Metal Resistor
2W Wire
2%
1/4W
Film 100K
2%
1/4W
Film 20K
2%
1/4W
Film 2.2M
5% 1/4
Film 10K
2%
1/4
15K
2%
1/4W
W
Film
Resistor
Metal 11
6310222
1/2W
Film
Resistor
8
1
2%
5
7
27C351
4-2/9
Resistor 4.7K Metal Film 1/4W
6
Ref
higher
4
Metal
NO. REQUIRED
81C399
Board
Resistor Metal
NO.
(81C399) -1333)
(see
Assembly Figure/Index for next Assembly)
3
IV
Section
Film 5.1K
2% 1/4W
Film 22K
2%
250
OHMS 5%
1/4W
Film
Wound
Page
4-39
68S304
Section 4-6A.
Figure NSD
Part
No's.
INDEX NO.
DESCRIPTION
14
Resistor
circuit and
PART
Board Assembly 52D137-1332 and
NO.
(81C399) -1333)
NO.
REQUIRED
Metal 15
Printed 52D136-1333
IV
16K
1/4W
2%
6316324
1
Film
Integrated
Circuit
=
438114
1
=
438129
1
MC14016CF
16
Integrated HAI-4741-5
Circuit
17
Transistor
2N6039
48S115
1
18
Transistor
2N9401
48S110
2
19
Transistor
2N4403
48S111
2
20
Transistor
2N6426
48S146
1
21
Diode
1N4001
48S33
2
22
Diode
1N4143A
48S33
1
23
Capacitor Ceramic 100V
21S162
1
24
Capacitor Ceramic
21S118
1
25
Capacitor Ceramic
21S114
2
26
Capacitor Ceramic
21S97
1
27
Capacitor 20% Ceramic
21S95
2
28
MFR
11M56
A/R
29
Solder
10M85
A/R
Varnish
.022
1MF
.22
.001
.01
MF
50V
MF
50V
MF
MF
50V
Page
4-40
68S304
Section
23
IV
32
24
28
1
29
34
Figure
4-6B.
Circuit
Board
Assembly
(81C460-1)
Page
4-41
4-6B.
Figure
Board
Circuit
DESCRIPTION
INDEX
(81C460-1)
Assembly PART
NO.
NO.
Assembly 4-219
Board
Circuit (See
Figure/Index higher next for assembly)
1
2
3
IV
Section
68S304
P.C.
NSD
Board,
Velocity
servo
Resistor,
250
360
NO. REQUIRED
81C460-1
Ref
27C451
1
64250EOCAX
1
6310EOOCID
1
Amp OHMS,
2W,
5%
W.W.
10
OHMS,
1W,
5%
OHMS, Metal
1/2
W,
631KOOOD2D
1
Film W,
631KOOOD4D
1
Metal
Film 4
5
1K 2%
1K OHMS, 2%
1/4
Film
Metal
6
10K
6310KOOD4D
5
7
15K
6315KOOD4D
1
8
13K
6313KOOD4D
1
9
39K
6339KOOD4D
1
10
SELECT
SELECT
1
11
68K
6368KOOD4D
1
12
100K
63100KOD4D
2
13
120K
63120KOD4D
1
14
Resistor,
6322OKOD4D
1
1/4W,
220K 2% Metal
15
Capacitor, 20% Ceramic
16
Capacitor, 10% Tantalum
17
Diode
18
Diode,
19
Integrated
.01
6.8
Zener Circuit
OHMS,
Film MF,
50V,
21S95
3
uf,
15V,
215209
1
48S33
1
48583
1
48S128
1
Page
4-42
685304
IV
Section
4-6B.
Figure
Circuit
Board
DESCRIPTION
INDEX NO.
(81C460-1)
Assembly
PART
NO.
No. REQUIRED
485102
1
Transistor
48564
1
22
Transistor
485146
1
23
Transistor
48568
2
24
Transistor
48574
2
25
Transistor
485115
1
26
Tubing,
11M266
3
20
Integrated
21
1.0 27
28
29
Circuit
x 1/2
Wire,
28
1/2"
Long
Wire,
28
1/2"
Long
Wire,
28
1/2"
Long
30
Solder
31
P.C.
32
Lacing
33
Tak-Pak
34
Capacitor Tantalum
Heat Shrink Long
.031
AWG,
Gray,
3
10M459
1
AWG,
Blue,
3
10M457
1
AWG,
Green,
10M456
1
10M85
A/R
11M56
A/R
11M95
A/R
11M475
A/R
215202
1
Board
Spray
Cord
IMF
25V
3
Page
4-43
Section
68S304 Figure
4-7.
Printed Circuit 52D137-1332, No.'s
Part
Board
(81B107-2)
Assembly
-1333,
and
-2331,
IV (NSD
-2334)
O
INDEX NO.
NO.
NO.
REQUIRED
81B107-2
Ref
21A134
1
48S99
1
21A86
1
48S64
1
47k,
6347324
1
47ohms,
6347124
1
15k,
6315324
1
27B213-2
1
DESCRIPTION
Printed Assembly 2/10 for
PART
Board Figure/Index higher
Circuit
(See neXt
4-
assembly) 1
Capacitor Tantalum
2
Diode,
10mf,
C4,
25Vdc,
CR4,
Zener
1N4737A
3
Capacitor Tantalum
4
Transistor
5
Resistor 1/4 watt,
R20,
Resistor watt, 1/4
R21,
7
Resistor 1/4 watt,
R22, 2%
8
Printed
6
C3,
Q6,
1|Omf,
2N4403
35Vdc,
2%
2%
Circuit
Board
Page
4-44
Section
685304
IV
O
Figure
4-8. Printed Circuit Board Assembly 52D137-1020 No.'s through (NSD Part 52D136-0010 through
(81B107-3) -1220
and
-1220)
Page
4-45
Section
68S304
4-8.
Figure
Printed Circuit Board Assembly 52D137-1020 No.'s through 52D136-0010 through
Part
(NSD
IV
(81B107-3) -1220
and
-1220)
DESCRIPTION
INDEX
PART
NO.
NO.
Board
Circuit
higher
81B107-3
Ref
21A134
1
1N4737A
48S99
1
Omf.
21A86
1
48S64
1
6347324
1
6347124
1
6315324
1
48S33
1
80S26
1
27B213-2
1
(see
Assembly
4-2/10
Figure/Index
next
for
assembly)
1
C4, Capacitor Tantalum 25V,
2
Diode,
3
NO. REQUIRED
Zener
Capacitor
10mf,
CR4, 1.0
C3,
35Vdc,
Tantalum 4
Transistor
5
Resistor watt, 1/4
R20,
Resistor
R21,
470
R22,
15k,
6
watt, 7
Diode
9
Relay, Brumfield Printed
2N4403 47k,
2%
ohms,
1/4
2%
Resistor 1/4 watt,
8
10
Q6,
2%
CD3,
1N4001
12V,
Circuit
Potter
&
Board
Page
4-46
68S304
Section
o
-
I
OO
N
Figure
IV
4-8A.
Printed
Circuit
Inverter,
N
Board (81D715)
Assembly,
Electric
Page
4-47
Section
685304
4-8A.
Figure
Printed
Board (81D715)
Circuit
Inverter, DESCRIPTION
INDEX
Assembly,
PART
NO.
NO.
IV
Electric
NO. REQUIRED
1
Printed
2
Transistor,
3
Circuit
Board
27C495
1
MPSA55
48S111
1
Transistor,
MPSA05
48S110
1
4
Transistor,
2N6039
48S119
2
5
Transistor,
2N6034
48S112
2
6
Fuse,
Pico,
3 Amp
65885
1
7
Coil,
500
24S109
1
8
Diode,
48S56
3
9
Capacitor,
5MFNP
21S226
1
10
Capacitor,
68MF,
21S220
2
11
Capacitor,
21S98
2
12
Capacitor,
21S118
3
13
Potentiometer,
25K
18S94
1
14
Potentiometer,
20K
18SS2
1
15
Resistor,
15K,
6315KOOD4D
2
16
Resistor,
1.5M,
631M500D4D
1
17
Resistor,
1M 1/4W,
631MOOOD4D
1
18
Resistor,
27K,
6327KOOD4D
1
19
Resistor,
100K,
63100KOOD4D
3
20
Resistor,
10K,
6310KOOD4D
4
21
Resistor,
4.7K,
634K700D4D
8
22
Resistor,
100
63100EOD4D
1
23
I.
C.,
CA3524E
48S210
1
24
I.
C.,
LM3358
48S128
1
MH
1N4004
60V
.047
1MF
1/4W,
MF MF
1/4W,
MF
1/4W,
MF
1/4W,
1/4W,
MF
1/4W,
ohm,
MF
MF
1/4W,
MF
Page
4-48
68S304
84 '
e
/ 24
o e Aeg ekh
9e 4p
68S304
Section
4-9.
Figure INDEX
Element
Gyro
Assembly
DESCRIPTION
PART
-
NO.
NO.
Support,
Diode
part,
attaching
la lb 1c 2
Housing
Assy,
part,
attaching 2
2b 2c
2d 2e 2f 2g
to
(h)
Top Index
Fil. Head, Screw, 1-64 No. x 1/8 Top Housing
1
S46018-01FO3P
3
S12037 512034-001 56BO33-001
1 1 1
No Number
1
70A059-001
4
1V293-940
1
73BO40-OO1 52C129-001
2
1
546013-00-
02FSS
68BO29-OOl 51BO70-OO1
(a)
thru thru
4
(g)
1 1 1 1
(g)
4
(g)
1
(p)
1
S30023-001
(a)
& Rotor
thru
69A048-001 69A048-002 69A048-003
A/R A/R
No Number
1
51BO75-001
1
A/R
Assy
part,
attaching
4 to 2a Pivot, Screw,
Locknut,
Ref
55D153-002 (h) thru 55D153-001
Top
Gimbal Housing
part,
(p)
S46018-01CO2FS
Spacer
5/16
thru
No Number
(a)
SS,
Spacer
4a
Ref
83BOl9-001
2h
Spacer
4
(g)
8
Housing 3
thru
81C47
Screw, Pan Head, No. 4-40 x 1-7/8 Vane and Screw Assy to Index attaches 4k Gasket and Hub Pulley (Matched) attaching 2c to 2h Index part, Flat Head, No. Screw, 0-80 x 1/8 No. 0.005 Shim, Pivot, Top Bearing attaches Coil Assy
to 2h
No.
81C48
Assy Index
1 to 2c Pan Head, No. Screw, 1-72 x 3/16 Light Diode, Emitting Transistor Support, Diode
2a
Air REQUIRED
(a)
Element Gyro Assy 4-2/15 (See Fig|Index for next higher assy) Element Gyro Assembly 4-2/15 Fig|Index (See for next higher assy) 1
IV
-
32
Index No.
attaching
Index 4a No. 5/16
-
32
S45010-011
1 Page
4-50
68S304
Section 4-9.
Figure
Gyro
Element
Assembly
DESCRIPTION
INDEX
PART
-
NO.
NO. 4b
S46013-00-03FS
3
55B243-001
1
4c to 4k Pan Screw, Head, 2-64 No. x 5/16
S46018-02FOPS
1
Rotor
No Number
1
Index
4e
4b
0-80 No. Erector, attaching
to
4k
Head,
Flat
Screw,
4d
x 3/16 Rainbow
part,
Index
Assy & Housing 4-10) (See Figure No.6-32 Screw Balance
(a)
thru
S460154f 4g
Balance Balance
(h)
Weight
23-500-41 58A020-001
4j
Part,
No.
3-48
x 3/162
Air
Seal,
Carbon
(Bottom
Bearing Gimbal) Bumper, attaching
Rubber
part,
4j to 4k Fil. Screw, 3-48 No. x
4k
Gimbal
Head, 5/16
Pan
Screw, Steel,
No.
1 A/R
A/R
73BO33-004 S30006-004
1 1
75AOl2-001
1
AN500C3-001
1
(a)
thru
(h) thru 55D228-002
Ring
Dial Assy attaching Index5
1
S46018-03COSPB
50BO40-002
5
(p)
-08N
Index
Ring
Gimbal
(g) 005
Index
Head,
Pan
Screw,
thru
Screw
attaching 4g to 4k
4h 4i
NO. REQUIRED
1
attaching
Pivot
part,
4c
Air
51CO97-001
Air
IV
(NSD)
(g)
1
(p)
1
No Number
1
S46018-
1
part,
to
5a and Head, 3-48 x
4k 03CO3PS
3/16 Screw,
No. 5a
Bracket,
attaches Screw, Steel,
5b
Bracket, attaches Screw, Steel,
5c
Dial,
Pan Head, x 5/16 Dial Support to Index 5 Pan Head, 2-56 No. x 1/8 Dial Support to Index 5 Pan Head, 2-56 No. x 1/8 (NSD)
2-64
S46018-
1
02FO5PS 628168-001
i
546018-
1
02CO2PS
62B178-001
1
S46018-
1
02CO2PS
65B272-001
1 Page
4-51
68S304
Section 4-9.
Figure
Gyro
Element
Assembly
DESCRIPTION
INDEX
-
PART
Air
NO.
NO.
NO.
6 7
REQUIRED
Can
60BO65-001
1
Pivot, attaching
51CO71-001
1
S46018-01FO2BB
2
7 to Screw,
No. 8 8a
8b Sc 8d Se Sf 8g Sh Si
IV
Bottom
part,
8 Pan 1-72
Head,
x 1/8
Housing Plate
Assy, attaches
Index Screw,
8
No. Nut,
Fil. 4-40
Bottom
to Head, No.
Brass,
Terminal,
Solder
Gasket Ground Diagram
Strip Assembly
Filter Housing
Bottom
(g)
(h)
No Number
i
58B100-001
1
S46013-0406CS
2
x 3/8
Screw Assembly, Adjustment
(a) (b) (c) (d) (e) (f)
Index
52D137-1332 52D137-1333 52D137-2331 52D137-2334 52D137-1020 52D137-1120 52D137-1220 52D136-0010
6-32
AN426A4-2 1V293-970
1 1
.
532010-091
1 1 1 1 1 1
73BO37-001 58A101-001
1V293-980 55B158 1V293-990
(i)
(j) (:k)
52D136-0020 52D136-0110 52D136-0210
(1)
52D136-0120
(m)
52D136-0220 52D136-1020 52D136-1120
(n) (o)
(p) (q) (r)
52D136-1220 52D189-( 52D189-1
)
Page
4-52
68S304
Section
Uw
I
IV
'o.
o
i
Figure
4-9A.
Gyro
Element
Assembly
-
Electric
Page
4-53
68S304
IV
Section
4-9A.
Figure
Element
Gyro
Assembly
-
DESCRIPTION
INDEX NO.
Electric
PART
NO.
NO. REQUIRED
(q) Gyro Element Assembly 4-21 is Figure/Index higher Assembly)
1
Capsule
Bottom
2
Capsule
3
Capsule
4
Gimbal (See
Figure
5
slip
Ring
6
Gimbal
7
Gyro
8
Pulley
9
Gyro
81D712-(
(See
for
(r) Ref
)
next 81B717
1
Cylinder
15B499
1
Top
15C500
1
Assembly 4-9B)
81D710
1
Pivot
42B362
1
43A727
1
49B94
1
43A726
1
81B711
1
32A61
1
34A87
1
Assembly
Pivot Pulley Retainer Slip-Ring
P.C.B.A.
10
Gasket
11
Heading
12
Shim
13
Screw,
2-56
14
Washer
Shim
15
Screw,
2-56
16
Screw,
0-80
17
Screw,
4-40
X 1 7/8
18
Gimbal
19
Slaving
20
Screw,
21
Slip
22
Terminal
Teflon
23
Silicone
Rubber
Vane
4A207-(
Washer FH
X 3/16
A/R
)
3S278
4
4A299
1
X 3116BH
3S131
1
X 1/8
3S285
4
3S144
4
Bearing
45A97
2
Coil
14B213
1
3S469
4
42B364
1
29S109
3
11M252
A/R
11M359
A/R
11S291
A/R
1DM216
A/R
10M219
A/R
10M137
A/R
10M107
A/R
0-80
FH
X 1/4
BH
BH
Ring
Transparent
(RTV) 24
Shrink
25
Lubricant,
26
Wire,
26
AWG WHT/GRY
27
Wire,
26
AWG|GRN
28
Wire,
26
AWG Violet
29
Wire,
24
AWG Gray
Tubing
3/64
I.D.
Silicone
6"
6" LG.
6" 6"
LG.
LG.
LG.
Page
4-54
Section
685304
4-9A.
Figure
24
AWG White
30
Wire,
31
Wire
32
Bottom,
33
Shim
34
Cover
Bottom
Brush
35
Brush
Block,
Rotor
x 1/4 x 3/8,
24
AWG Green
Electric
6" 6"
LG. LG.
NO.
NO. REQUIRED
10M106
A/R
10M110
A/R
15C499
1
32A62
36
Screw,
37
Screw,
2-56
(h)
-
PART
Capsule
2-56
(g)
Assembly
DESCRIPTION
INDEX NO.
(a) (b) (c) (d) (e) (f)
Element
Gyro
52D137-1332 52D137-1333 52D137-2331 52D137-2334 52D137-1020 52D137-1120 52D137-1220 52D136-0010
Capsule
B.H. F.H.
(i)
(j) (k) (1) (m)
(n) (o).
(p) (q) (r)
IV
.
1
15A501
1
39B567
1
3S208
2
3S362
2
52D136-0020 52D136-0110 52D136-0210 52D136-0120 52D136-0220 52D136-1020 52D136-1120 52D136-1220 52D189-( ) 52D189-1
Page
4-55
68S304
IV
Section
I
17
4
IS
2 OR 24 23
5
16
--
12
3
14 14
20
9
2
Figure
4-9B.
Gimbal
Assembly
(81D710) Page
4-56
Section
68S304 4-9B.
Figure
Gimbal
Assembly
DESCRIPTION
INDEX
PART
NO.
NO. REQUIRED
NO. 1
Gimbal
2
Rotor Figure
3
. Compass
IV
(81D710)
15C495
1
81C709
1
Ring
34B88-1
1
Bearing
45A97
1
Assembly
Housing 4-10A)
(See
4
Gimbal
5
Bearing
Retainer
42A363
1
6
Erection
Ring
15A496
1
7
Rotor
39B567
1
7A2329
1
7A2330
1
3A650
1
47S299
1
Capsule Block
Brush
8
Ring
Compass
Mounting 9
Bracket
Ring
Compass
Mounting
Bracket
10
Threaded
Pivot
11
Silicone O.D.,
Tubing,
.06ID,
.170
.15Lg
12
Screw,
2-56
X 3/32
BH
3S244
2
13
Screw,
2-56
X 3/16
BH
3S131
1
14
Screw,
2-56
X 5/16
BH
3S71
3
15
Screw,
2-56
X 3/8
BH
3S435
1
16
Screw,
2-56
X 1/8
BH
3S61
2
17
Adjustment 6-32 X 1
Screw,
35654
2
18
Adjustment 8-32 X 1
Screw,
35653
3
19
Lead
Weight
7B2338-(
20
Lead
Tape
11M490
A/R
21
Washer,
4S38
2
No.
2
Flat
A/R
)
Page
4-57
68S304
Section
Figure
(a) (b) (c) (d) (e) (f)
(g)
(h)
52D137-1332 52D137-1333 52D137-2331 52D137-2334 52D137-1020 52D137-1120 52D137-1220 52D136-0010
4-9B.
Gimbal
Assembly
(i)
(j) (k) (1)
(m) (n) (o)
(p) (q) (r)
IV
(81D710)
52D136-0020 52D136-0110 52D136-0210 52D136-0120 52D136-0220 52D136-1020 52D136-1120 52D136-1220 52D189-( 52D189-1
)
Page
4-58
Section IV
68S304
3h
3b
3c
.
3i
3d
3a
3e
Figure 4-10.
Rotor and Housing Assembly
-
Air
Page 4-59
68S304
Section IV Figure 4-10.
DESCRIPTION
INDEX NO.
1
2
3 3a 3b 3c
Rotor and Housing Assembly
3g 3h 3i
NO.
NO. REQUIRED
(a) thru (g) lV352-009
f
Rotor and Housing Assy (See Figure/Index 4-9/5c for next higher assy)
(h) thru (p) lV352-008
Ref
Cap, Rotor Housing attaching part, Index 1 to 2
60BO50-001
1
Screw, Pan Head, No. 4-40 x 1/4
S46018-04CO4PCC
1
Rotor and Shaft Assy attaching part, Index 2 to 3 Screw, Pan Head, No. 4-40 x 1/4 Rotor and Shaft Assembly
(a) thru
(g) lV352-991
1
S46018-04COPCC (h) thru(p) lV352-992
1 1 1
Bearing (Rotor Housing)
No Number S30006-003
1
Bearing (Rotor Housing Air)
S30006-003
1
Spacer (Air Retainer Housing)
23-400-13
1
Washer (Air Retainer)
23-400-14
1
Housing (Air Retainer) Screw, Balance, No. 4-40 x 3/4
69B106-001
1
S46015-001-06N
2
Screw, Balance, No. 6-32 x 3/4
S46015-005-06N
2
Bar, Magnet
(a) thru (g)79B033-002 55Dl97-001
1
Housing, Rotor (a) 52D l37-1332
(b) 52D137-1333
52D137-2331 52D l37-2334 52Dl37-1020 52Dl37-ll20 (g 52Dl37-1220 (h) 52Dl36-0010 (c) (d) (e) (f)
PART
Rotor and Housing Assy (See Figure/Index 4-9/5c for next higher assy)
Housing Assembly, Rotor
3d 3e 3f
Air
-
1
(I) 52D l36-0020 (j) 52D136-0110 (k) 52Dl36-0210 (1) 52D l36-0120 (m) 52Dl36-0220 (n) 52Dl36-1020 (o) 52Dl36-ll20 (p) 52Dl36-1220 (q) 52Dl89-() (r) 52Dl89-1
Page 4-60
6AS
Section
04
IV
Element
Gyro
4--33
4-9
Assembly...
Air
4b
5 C605-001
Pivot
1
1
HOW TO USE A CENTURY FLICHT the proper the Illustrated
you receive To be sure descriptions given in Breakdown would Parts Element Assembly. Gyro 1.
the
At
of this in which
back
111ustration
to
the
2.
Turn
3.
Locate
4.
Turn to the 111ustration.
5.
Find Figure
6.
page
the
the
3
be
Part
Group
Index above.
parts
the
if
manual is required
an
its
in.the
Index
Assembly
Number,
which
PARTS CATALOC WEEN ORDERING PARTS
the
quantities, proper always use the part Breakdown. above The Figures illustrate the Air being ordered were Pivot that is
in Parts Part
Index. Part is
the
given and
used
SYSTEMS,INC.
In used.
the See
the find 1 above.
Index, Figure
number
page
numbers way used on
the
the.
of
and
the the
Parts
Index. Number. Parts
was
As
List obtained
shown
in
the
for
in
step
Figure
Illustration.
3,
the
2 above,
colue.n
Number
List
usually
headed
"Index
The
the
in
Index
is
Ab.
follows
the See
Number."
for the Part, given or call in an order follow below. To write, the instructions given the Part headed in Use the name of Parts column the List a. Group Assembly "Description, given parts are Number in the column Number." Part headed "Part If different Use the b. check Number the Part NSD P/N's, Number of your NSD with used in different the NSD Part Parts your the correct part for List to be sure that you order at the end of each List
NSD. c.
Give
d.
Request Include NOTE:
the
desired
only the the Part Tne Index order. however,
Figure
4-12.
quantity of the Parts required quantity of Parts you require, Number of your NSD. Numbers as shown on the Parts This System will you Indexing aid that not all replacements require
How
to
Use
the
Illustrated
as
shown
Illustration when
that
the
in
are
want you start you
Parts
to at
"No.
Required"
column,
in general disassembly Note replace a Part. Index Number 1.
List
-
Typical
Page
4-67
685304
Figure 4-10A.
INDEX
IV
Section
Rotor Housing Assembly, Electric Gyro
DESCRIPTION
PART
NO.
NO. REQUIRED
NO.
Rotor (See
for
Assy Electric Housing 4-9B/2 Index Figure higher next assy.)
1
Rotor
Housing
2
Rotor
Assy
3
Rotor
Housing
4
slip
5
Gimbal
6
slip
7
Teflon
Press
8
Screw,
2-56
9
BAR Magnet
Ring
81B709-(
)
15C494 (See
Fig
4-10B)
Cover
Pivot
Bearing Ring Terminal X 3/16
FH
81C708-(
Ref
1
)
1
15B497
1
42B362
1
45A97
1
42B364
1
295109
3
3S278
2
59576
1
Page
4-61
Section
68S304
IOR 9
2
6 5
'
IV
3 4
RED WHITE OR
7
Figure
4-10B.
Rotor
Assembly,
Electric
(81D708)
Page
4-62
68S304
Section 4-10B.
Figure
INDEX
Rotor
Assembly,
(81D708-(
Electric
DESCRIPTION
PART
))
NO.
NO. REQUIRED
NO.
Electric Rotor Assembly, 4-10/2 Figure/Index for higher assembly) 1
D.G.
Light
2
Gyro
Stator,
26VAC,
Gyro
Stator,
13
3
Impeller
4
Rotor
Bearing
5
Rotor
Preload
6
Screw,
4-40
(a) (b) (c) (d) (e) (f)
52D137-1332 52D137-1333 52D137-2331 52D137-2334 52D137-1020 52D137-1120 52D137-1220 52D136-0010 52D136-0020
(g) (h)
(i)
(See
81D708-(
Rotor
Ref
)
next 49B90
400
Hz
400
VAC,
Hz
Nut X 3/16
BH
(j) (k) (1)
(m) (n) (o) (p)
(q) (r)
(q) (r)
IV
1 14C212
1
14C214
1
49B93
2
45A98
2
2A183
2
3S48
4
52D136-0110 52D136-0210 52D136-0120 52D136-0220 52D136-1020 52D136-1120 52D136-1220 52D189-( 52D189-1
)
Page
4-63
68S304
so
.
I
s
ob
4
Ve 64
68S304
Section 4-11.
Figure
INDEX
Shaft/Meter
DESCRIPTION
Assembly PART
NO.
(a) (d)
thru
NO.
REQUIRED Ref
NO.
Shaft/Meter Assembly 4-4/11 Figure/Index (See next higher assembly) for Shaft/Meter
IV
(r)
(q)
81C198
thru
(p)
Ref
(a) (q)
thru
(d)
1
(a)
thru
(d)
2
thru
(p)
1
(p)
2
(e)
Assembly
81C60
1
Finished
Index
Screw, Black
Binder 0-80 No.
Finished
part,
2
Head, X 1/16 Scale
R/L
1
to
34B73-1
34B40-3
Black
No.
thru
(e) 3S412
Mask
Index
(e)
attaching
x 3/16
Center
®
3S414
2
Head,
Binder
Screw, 0-80 2
to
1
Index
attaching
Scale
R/L
part,
attaching
part,
2
thru
(a) (d)
(q)
1 (r)
34B70-1
Black,
Screw,
Head,
No.
R/L
x 3/16
Mask
Center 3
Flat
0-80
Index
(d)
2
thru (e) 34B44-1
(p)
1
thru
(a) (d)
attaching
Meter
part,
thru (a) 3S374
3
(q)
1 (r)
52C161 Binder Screw, Head, 4-40 No. x 1/2
3S212
2
Washer,
4A257
2
43A504
2
Insulating
Spacer R/L
Meter
thru
(e)
(p)
52B94-2
4
NAV Meter attaching part, Index 4
(a) (d)
thru (q)
1 1
(r)
52C163-1 Flat Screw, 2-64 No. x
5
To-From
thru (a) 3S530
Head, 1/8
Meter
part,
attaching
Index
5
(a) (d)
(d)
thru (q)
2
1 (r)
52C159 Flat Screw, 2-64 x No. To-From
attaching
(a) (d)
Head, 1/8
Nav
Meter
part,
Assembly Index 5
thru (q)
(e)'thru No Number
2 ®
3S530
(p)
1
Page
4-65
68S304
Section 4-11.
Figure
DESCRIPTION
INDEX
Shaft/Meter
Assembly PART NO.
NO.
REQUIRED 2
NO.
Hex Head, Screw, 2-64 No. x 3/16
(e) thru 3S486
(p)
Lockwasher, Internal,
(e) 4S16
thru
(p)
2
thru (e) 4A258
(p)
2
thru (e) 14A171
(p)
1
(e) thru 52B95-1
(p)
1
Washer, 5a
Insulator
5b
To-From
6
Rotor/Slip Assembly
part,
No.
2
Insulating
Nav
Meter
Ring attaching Index 6
(a) (d)
thru (q)
1
(r)
81C199
Hex Head, Screw, 2-64 No. x 3/16
3S486
2
Lockwasher, No. 2
4S16
2
Internal,
Rotor/Slip Ring Assembly
(a) (b) (c) (d) (e) (f)
(g) (h)
52D137-1332 52D137-1333 52D137-2331 52D137-2334 52D137-1020 52D137-1120 52D137-1220 52D136-0010
IV
(e)
thru
1
(p)
81C33
(i)
(j) (k) (1)
(m) (n) (o) (p) (q) (r)
52D136-0020 52D136-0110 52D136-0210 52D136-0120 52D136-0220 52D136-1020 52D136-1120 52D136-1220 52D189-( 52D189-1
)
Page
4-66
68S304
Section
Page
IV
4-68
68S304
Section SECTION
SCHEMATIC 5-1.
GENERAL
5-2-
This
and
5-6
-1333,
for
are
52D189-(
manual
V
DIAGRAMS
contains
schematic
diagrams
for NSD P/N 52D137-1332, 5-2 Figure is the schematic 5-3 through and Figure 52D136-0010 for NSD P/N through the schematic for NSD P/N
schematics -2334.
52D137-1020 the schematic 5-7 is Figure
NSD P/N
contains
the
the
and
-2331,
-1220.
5-3.
of
section
V
-1220
).
In some NSD P/N configurations the Localizer CR-3 are installed Relay Kl and diode separately Circuit 81B107. Board The wiring for Kl and identical NSDs as shown to the wiring for all 3-8, 5-2, 3-7, Figure and 5-3.
Switch
from CR-3
is
in
Page
5-1
68S304
Ill
Section
ALSO SEE 81C480
PCS 81CB1 CD
HDGPOT BR ASSY HDO POT BR ASSY
WHT
-
WHT/BLK
-
HDO POT GR ASSY
CRS POT BR ASSY SR BR ASSY
05 MTR GS MTR
-
WHT/GRA
-
BRN
GS FLAGMTRBRKT
-
RED
-
GR BLK
-
2
(NOT USED)
$TTR (D)
24
6
(NOT USED)
$TTR (G)
25
7
NAV FLAG (-)
28
8
NAV FLAG (+)
UP
27
9
(NOT USED)
DN
28
1
14 VDC
FLAG (-)
29
11
(+)
30
12
14/28
31
1
AZM REF
32
1
AZM RATE
33
1
RTR (A)
-
34
16
RTR (C)
-
(NOT USED)
35
17
L
(NOT USED)
36
1
L
STTR (F)
-
GS
OS OS
(+) (+)
GS FLAG
-
-
-
-
-
-
-
DLK
132
-
YEL
-
-
-
-
-
GND
-
14 VDC VDC
AZM REF AZM RATE
7.6 VDC (REF)
--
-
14/28
-
ORN
-
14
-
BLK
-
RED
-
13
-
GLK
-
14 VDC
-
OUTPUT
-
-
--
MOT DR
-
-
MOT DR A+
GLK
-
CD
-
WHT
-
CD
-
132
-
106
-
32
-
CD
RED
-
ORN
-
PCD 8tCB1
-
YEL
-
VIO
GEAR MOT
(+)
GEARMOT (-)
-
PCS 818107
-
3
-
CO
C
-
111
-
GRN GRA
-
A
-
111
-
BLK
-
-
H
-
ORN
-
CT STTR (Y)
ST STTR (X) CT STTR (Z)
-
VIO
-
-
-
-
CT RTR (C)
-
CT RTR (H)
YEL
CT STTR (Y)
-
-
-
-
-
-
-
-
-
WHT/RED
-
-
WHT/BLK
GLU
-
GLX
-
SYNCHRO
-
CT STTR (X)
-
SYNCHRO
ST STTR (Z)
-
SYNCHRO
CT RTR (C)
-
SYNCHRO
-
CT RTR (H)
-
SYNCHRO
-
e
PCS 81CB1
-
J
-
111
-
D
-
111
-
CD
PCD StCB1
-
111
-
CD CD
VDC
-
-
TB1
PCD 81CS1
-
WHT/RED
-
32
-
CB/BR ASSY
-
-
WHT/BLU
-
CD/BR ASSY
-
CD/BR ASSY
-
WHT
-
-
BRN
-
ORN
-
-
-
-
-
132
-
10
-
12
-
1
-
-
BLK
-
CD
132
-
132
-
132
-
CD
GS FLAGMTR BRKT
-
-
-
-
-
-
5
CD
GS FLAO MTR BRKT
-
GRN
-
CD
GS FLAG MTR BRKT
-
YEL
-
23
BRN NAV FLAG 6 NAV FLAG 8 RED ORN NAV FLAG 4 BLK NAV FLAG 7 TO FR (+) RED
-
ORN
-
STTR (E)
-
WHT/VIO
22
CRS SIG
-
-
WHT/YEL
GS FLAGMTR BRKT
-
4
INT LT 14 VDC
-
-
-
HDG SIG
INT LT GND
WHT/YEL
-
BR BLK CD 132 BR BLK 132 CD BR BLK 1
INT LT GND
3
WHT/DLU
-
-
(-)
-
2
WHT/RED
-
-
CD
PCB 81CB1 SOL
-
21
-
-
1
19
BLK SLK
-
20
-
WHT/ORN
SR BR ASSY
-----
GND GND
HDG CRS EXC
WHT/BRH
-
SR BR ASSY
-
-
-
SR BR ASSY
HDG CRS EXC
-
132
-
-
TO
-
FR
(+)
FR
R
-
R
-
GRN
GLU
(+) (+)
L
CONTINUED ON PAGE 3-63a
7
-
BR BLK
-
GRA
-
3
-
BR BLK
-
VIO
-
R
GR BLK
-
BR BLK
-
5
-
-
8
PCB
818107-2 CD
111
-
CD
A
CT RTR (C)
VIO
D
CT STTR (Y)
C
CT STTR (Z)
D
SLAYCOIL (FNSH)
E
SLAV COIL (+)
F
SLAV COIL (57)
H
CT RTR (H)
J
CT STTR (X)
-
DLK
-
DLU
GRN
SLAV COIL (CTR)
-
PCB 818107
-
-
YEL
-
-
-
D
-
111 111 111
GRN
-
E
-
F
-
-
K
-
-
-
SLAV COIL (FNSH)
-
DLU RED YEL
-
-
-
SLAV COIL
(+)
SLAYCOIL (ST) SLAY COIL (CTR)
-
CTR
-
-
ST
-
-
FNSH
--
-
--
2
-
2
-
--
--
PCS 818107
-
CD
-
132
-
12
-
-
1 RED
BLX
-
-
14/28
-
GYRO
-
WHT/ORA
CYRO
-
A+
-
DLU
-
SOL (+)
A+
-
DLK
-
GYRO VAC SW
A+
-
WHT/ORN
A+
-
WHT/BLK
-
OS FLAG MTR
A+
-
WHT/BLU
-
PCB 81CB1
-
GS FLAG MTR
'
GRKT
-
BRKT
-
SWFTCH -----
OND
-
---
VDC
---
---
--
---
--
---
BRN
St.K
GRN
CB/BR
-
OUTPUT MOT DR
MOT DR A+
-
-
PCB 818107
2
-
CB/BR ASSY
-
ASSY
WHT
-
-
-
CB/BR ASSY
-
WHT/RED VIO
WHT/DLU
-
GEARMOTOR (+)
(-) GEARMOTOR
-
-
-
PCB 81D715
-
--
*
-
GYRO VACUUM
-
132
GYRO
2
81C460
-
-
WHT/ORN
-
2
PCG
CD
VIO
-
-
--
5
-
TG1
CD
-
-2
-
PCS 818107
-
TB1
-
CD
'
3
PCB 818107
-
RED
-
ORN -
BRN
-
111
-
CD 1
-
TD1
-
-
-
4
-
TB1
-
GRA
-
-
TD1
-
NOT USED WITH81C460 PCD.
Figure
3-16.
Wiring Diagram
VIO
-
GYRO (CTR)
WHT/ORN WHT/GRA
-
-
(HSD 52D137-1332,
-
PCB 818107
GYRO(ST)
-1333,
PCD 818107
-
GYRO(FNSH)
2
-
PCB 818107
-
-2333,
2-
-
-
AND Page
2--'
-2334
3-63
Section
III
=H
PCS 81861
BRN
-
7.8
-
VDC (REF)
O O O
-
PCB 81CB1
-
GRN
-
14 VDC
---
PCB 81CB1
-
WHT
-
OUTPUT
---
132 19 WHT HDO/CRS EXC CR5 POT BR ASSY BLU JUMPER 20 WHT LK HDG/CRS EXC CRS POT BR VIO JUMPER WHT/BRN 132 CD 21 HDG SIG
CO
-
-
-
-
-
CD
132
-
-
-
-
-
-
-
-
-
-
-
-----
CEAR MOTOR PCB 81CB1
WHT/RED
-
PCB 81CB1
MOTDR
-
MO
-
MOT DR
-
SUP RING BRUSH ASSY
-
CD
132
1
-
PCB 815107
BLX
-
2
-
GND
-
BLU
-
-
A+
132
-
CD
23
-
132
-
CD
-
-
25
-
132
-
24
-
132
-
CD -
UGHT TRAY
WHT/ORN
-
STTR (E)
WHT/TEL
-
STTR(D)
INT LT CND
--
WHT/GRN
-
26
-
STTR (G)---
-
WHT/BLU
-
INT LT GND/28 VDC
----
-
STTR (F)
INT LT 14 VDC
CD
132
-
132
-
27
-
WHT/VIO
-
GS
WWr/ORA
-
OS
-
28
-
-
(+) UP (+) DN
GRN---
-
-
--
SLAVING METER GS FLAG MTR BRKT
----
CD
YEL-
-
---
ME R -
ORN--
-
--
SOLENOID CD
O O O
OS FMG
---
m
BRKT
RED
-
WRT
-
---
--
-
05 FLAG METER
en CD CD
132-32
-
132
-
-
34
-
CD CD
132
-
RED
-
TO
-
FR
BLK
-
TO
-
FR
-
132
-
32
-
15 GRN RTR (A)
-
ORN
-
(+) TO (+) FR
NAV FLAG (-)
-
,-
----_
os
ruG
MTR BRKT
RESISTOR
-
--
CS FLAC MTRBRKT
RED
-
--
----
•---
-
CD-132-17-MO-L-R(+)L---CO
132
-
CD CD
-
132
31
-
132
-
18
-
BRN
-
16
-
GRA
-
NAV FIAG
-
BLU
-
L
-
R
-
(+)
RTH (C)
-
-
(+)
R
GS FLAG METER BRA_CKET
----
-
~¯
CD CO
-
132 CD CD
132-2
-
-3
132-4
-
132
-
-
-
-
CD
-----
TB1 TB1 TB1 TB1
-
-
4
-
5
-
1
-
-
-
-
2
-
3
-
YEL BLU BLK
ETTR (Y)
-
ETTR (X)
-
ETTR (2)
-
-
CT RTR (C)
WHT/DLK
CT RTR (H)
WHT/RED
-
132
-
-
30
-
INT LT 14 VDC
INT LT 14 VDC
-
BRN
-
GS FLAG
(-)
RED
-
GS FIAG
(+)
---
PCS 518107 ---
----
•---
---
O O O O
PCB 818107
2
-
-
2
-
GS FLAG
(-)
OS FLAG
(+)
SLAV
WHT/ORN
-
WHT/BLK
ORN
-
O
stAY
m m
-
-
-
YEL
-
GRN
-
RED
WWT
-
LT TR
-
LT TR
-
RESISTOR
RED
-
LT TR
-
VDC
INT LT GND/28
VDC
SYNCHRO TB1
INT LT OND
INT LT CNO
-
INT LT GND/28 GRN
-
29
ORN
-
YEL
-
-
'
GS FLAG MTR
05 FLAG MTR
*
SLAV MTR
-
SLAV
-
'
m
COURSE POT BRUSH ASSY CD
-
132
-
22
-
WHT/RED
-
CRS SIG
--
JUMPER
-
BLU
JUMPER
--
VIO
-
-
HDO POT BR AS$Y
'
HDG POT BR ASSY
Figure
3-16.
Wiring Diagram
(NSD 52D137-1332,
-1333,
-2333,
AND Page
-2334
3-63a
68S304
SecNon
Ill
ALSOSEE 810460
PCB 81CB1 CD HDG POT BR ASSY HDO POT BR ASSY
WHT
-
20
2
HDG SIG
21
3
(NOT USED)
CRS SIG
22
4
(NOT USED)
STTR (E)
23
5
(NOT USED)
CRS POT BR ASSY
WHT/RED
-
-
WHT/ORN
-
SR BR ASSY
-
WHT/YEL
-
STTR (D)
SR BR ASSY
-
WHT/YEL
-
STTR
SR BR ASSY
-
WHT/DLU WHT/VIO
-
WHT/GRA
-
GS FLAGMTR BRKT
(0)
STTR (F)
-
29
11
30
12
14/28
31
1
AZM REF
32
i
AZM RATE
33
1
RTH (A)
FR
34
16
RTR (C)
LOC SW
35
17
L
(NOT USED)
36
1
L
-
GS FLAG(+)
s -
3
-
-
3
-
WHT/BRN/VIO LOC FLAG(-) TO R 23 NAV FLAG (-) 106 7 WHT/DRN/RED LOC FLAG (+) FR WHT NAV FLAG (+) 108 8 WHT/BRN/ORN FR (+) TO TO -
-
-
-
-
-
-
FCS 818107
WHT/BRN/YEL -
3
-
SŒ
-
-
GND
GND
106
-
WHT
-
-
-
-
14 VDC
-
OilTPUT
106
-
12
-
106
-
13
14/28
YEL
-
14 YOC
-
-
ORN
-
14
-
BŒ
-
RED
-
-
106
-
10
-
VDC
AZM REF
-
AZM RATE
-
-
-
-
-
MOT DR A+
RED
-
ORN
-
CO
YEL
-
-
CS/BR
WHT
-
CB/BR ASSY
-
WHT/RED
-
VIO
GEAR MOT (+)
-
GEAR MOT
-
WHT/BLU
-
ASSY
(-)
PCB 818107
-
-
A
-
111
-
GRA
-
N
-
--
CT STTR (Y)
-
ST STTR (X)
ORN
-
--
-
-
CT STTR (Z)
-
VIO
-
-
-
CT RTR (C)
-
CT RTR (H)
-
-
-
-
-
-
YEL
CT STTR(Y)
-
DLU
-
CT STTR(X)
D
-
ST STTR (2)
WHT/RED
-
SYNCHRO
-
SYNCHRO
CT RTR (C)
-
WHT/DLX
SYNCHRO
-
CT RTR (H)
-
SYNCHRO
-
SYNCHRO
-
e
PCD 81C31
-
111
-
GRN
-
C
-
BLK
-
J
-
111
-
D
-
111
-
CD
PCB 81CB1
-
111
-
CD
PCB 81C8t
-
GRN
TB1
CD VDC
-
MOT DR
-
-
3
-
PCS 81CBt
-
CD/BR A$5Y
-
31
-
CD
-
CD
BLK
DRN
-
-
-
-
-
CD
-
-
-
-
-
(+)
(-)
RED
-
NAV FLAG
14 VDC
OS FLAG MTR BRKT 3 CD 3 CD
8
1
OS FLAG
-
(-)
26
28
-
818107
(NOT USED) NAV FLAG
-
1
-
-
6
DN
BRN
CO
7
(NOT USED)
105
-
106
-
106
-
CD
24
9
OS
00
.
00
25
27
-
,
(NOT USED)
UP
GS
CD
,
,
SOL (-)
-
(+) (+)
-
-
-
L18107
HDO CRS EXC
WHT/DRN
GS MTR
18107
-
-
GS NTR
18107
1
-
PCB 61CS1
-
19
-
-
BLK D
-
HDG CRS EXC
HDGPOT DR ASSY
SR BR ASSY
GRN GRN
-
WHT/DŒ
-
108
-
-
TO
FR
-
WHT/BRN/GRN
-
(+)
R
-
R
-
-
GRN
-
BLU
(+) L (+) R
BR D
-
VIO
-
BR BLK
-
C
5
-
BR BLK
-
GRA
-
1
-
BR BLK
-
3
-
-
PCS 818107-2
CD
111
-
CD CT RTR (C)
VIO
-
D
CT STTR (Y)
BLK
-
C
CT STTR (Z)
D
SLAY COIL (FNSH)
E
SLAY COIL
F
SLAY COIL (ST)
H
CT RTR (H)
J
CT STTR (X)
K
SLAY COIL (CTR)
BLU
-
RED
-
ORN
-
BRN
-
GRN
-
-
-
-
CD
3
CD
PCD 818107
-
PCB 818107
-
TB1
YEL
-
3
-
CD
3
-
PCB 818107
-
TB1
-
CD 1
-
TB1
-
3
-
:'O -
CD
5
-
-
111
-
4
-
TB1
-
GRA
-
(+)
TB1
-
CD
106
-
106
-
106
-
-
CD
PCB 818107
-
'
3
-
34
-
E F
-
-
K
-
SLAY COIL (FNSH)
-
GLU
-
RED YEL
-
-
-
-
SLAY COIL
(+)
SLAY C0iL (CTR)
WHT/BRN/VIO
LOC FLAG (+) TO
-
LOC FLAG (+) FR
WHT/BRN/ORN
-
WHT/BRN/YEL
-
-
35
PCB 818107
FR (+) TO
-
TO
-
-
TO
-
WHT/DRN/GRN
-
-
3
-
WHT/BLU
FR
(+) FR LOC SW
-
-
JUMPER
FNSH
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
--
SLAY COIL (ST)
WHT/BRN/RED
106
-
BRN
-
-
-
-
33
--
106
2
111
-
32
-
111
-
31
·-
D
-
111
-
CTR ST
WHT/dRA
-
VIO
-
-
--•
-
GYRO
-
OYRO
WHT/GRN
-
OYRO
-
(+)
A+
-
BLU
-
SOL
A+
-
BLK
-
GYRO YAC SW
A+
-
WHT/ORN
A+
-
WHT/DLK
GS FLAG MTR
A+
-
WWr/BLU
PCB 81CB1
CS FtAG MTR
-
-
-
JUMPER
-
-
WHT/DLU
--
TO
-
FR
TO
-
FR
(+) TO (+) FR
BRKT
-
BRKT
-
PCD 818107
-
-
BRN
-
ORN
BR BLK
-
-
-
4
BR BLK
2
-
'
3
-
'
GYRO
VACUUM SWITCH
PCB 81C460 CD CD
-
132
-
-
132 12
-
-
1 RED
-
-
BLK 14/28
-
GND
---
VDC
---
BRN
---
-
GRN
---
-
CS/BR
W
CS/BR
ASSY
OUTPUT
---
--
---
---
MOT DR MOT DR
A+
-
WHT
-
CS/BR
-
WWr/RED
-
VIO
-
WHT/BLU
-
-
--
VIO
-
WHT/ORN
GYRO (ST)
WHT/ORA
GYRO (FNSH)
-
-
GYRO
(+) GEARMOTOR
(-)
PCB 81D715
-
*
3
DLK
ASSY
GEARMUTOR
-
PCD 818107
-
NOT USED WIIN 810460
PCB.
Figure 3-17.
-
GYRO (CTR) -
Wiring Diagram
-
-
PCD 818107
-
3
PCB 818107
-
-
PCD 818107
(NSD 52D137-1020
N
-
-
&---
through Page
-1220)
3-64
N
D
Section Ill
HEADINGPOT BRUSH ASSY
cincun sono/ | BRUSH ASSY
PCS $1CS1
BRN
-
7.5 VDC (REF)
-
PCB 81CB1
-
ORN
PCE $1CB1
-
WHT
14 VDC
-
OUTPUT
-
------
O O O
---
-
----
WHT 106 19 HDG/CRS EXC CRS POT BR ASSY JUMPER BLU 108 20 WHT/BLK HDG/CRS EXC CRS POT BR ASSY VIO JUMPER 21 CD 108 WHT/BRN HDO SIG
CD
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
SLJP RING ASSY
GEM MOTOR PCB 81CB1
WHT/RED
-
PCE 01CB1
VID
-
-
MOT DR
-
MOT DR
CD CD :D
SOLENOID :t
106
-
1
-
BLK
-
3
-
ORN
-
BLU
-
-
A+
23
-
106 106
-
CD FCS 818107
-106
-
25
-
106
-
26
-
WWT/ORN
-
24
-
WHT/YEL
-
WHT/ORN
-
-
WHT/BLU
-
-
-
STTA (E)
-
SITR (D) STTR
(0)
SITR (F)
---
O
----
-
----
---
SLAVING
----
urva
MMMTRBM-m106
-
D
108
-
27
-
WHT/V10
-
28
-
WHT/ORA
-
-
GS
-
GS
(+) (+)
UP DN
--
--
OS FtAG
CD 818107
106
-
3
-
15
-
ORN
-
ORN
-
TO
-
NTR (A)
-
FN
-
(+)
FR
05 FLAG M1R BRKT
-
BRN
OS FLAG MTABRKT
-
RED
---
-
---
-106-17-V10-L-R-(+)L818107 CD
3
-
BRN
-
108
-
TO
-
18
-
-
FR
-
BLU
-
(+) TO RTH (C)
---
--
-106-18-GRA-L-R-(+)RGS FIAG METER BRACKET CD CO
106
-
29
-
BRN
-
GS FIAG
106
-
30
-
RED
-
GS FLAG (+)
PCB 815107 TB1 TB1 TB1 TB1 TB1
-
-
1
-
-
2
-
3
-
-
-
YEL
STTR (Y)
-
BLU
-
STTR (X)
BLX
-
STTR
4
-
WHT/RED
5
-
WHT/BLX
(z)
-
CT RTH (C)
-
CT RTH (H)
PCB 818107
-
3
-
-
3
-
-
GS FLAG (-)
(-)
-
-
OS FLAG (+)
WHT/ORN
SLAY MTR
WHT/BLK
SIAY MTR
-
-
-
RE5lsfDR
-
RED
-
-
03 FLAG MTR
0$ FLAG MTA
RED WHT
-
---
•---
---
O COURSE POT BRUSH ASSY
CD
-
106
-
22
-
WHT/RED
-
CRS SIO
-
---
JUMPER
-
BLU
---
JUMPER
-
VfD
-
-
HDG POT BR ASSY HDO POT BR A$5Y
Figure 3-17.
Wiring
Diagram
(NSD 52D137-1020
through
-1220)
Page 3-64a
68S304
SECTION
III
SAELE SIC460 PCB $1C31 CD-106-1-BLK-GND
CIRCUlf BRUSH
7.6VDCIREF)-BRN-CS/BRASSY
BOAADI ASSY
PCBB1C31-BAN-7.6VDCtREF)
CD-1M GND-SLK-50L f(CPCTORASSY-M-¥OCŒ5EXC CRS Exc-----
7©GPUTSR ASSV -mHTMLK-ftC þOGPUTORASSV-WÆAN->CCSIG OISPDTERASSY-WIRED-CRS5rG 5RERASEY-WMIN-STTRIEl
(NOT USEDI
21
3
INOT USEDI
22
4
(NOTUSED)
23
5
(NOTUSED)
6
7
---GSFLAGMTRBRKT-BAN-GSFLAGl-) FLAG MTR BRKT -
2
25 26
8
77
g
GSMTR-WKiRA-GSf•)t(MN-----"
.81B107-3
ZO
24
OSMIR-MN10-G5t•)tF
---GS
1
SRBRASSY-MIGRN-STTRICl----SRERASEY-MÆLU-STTRIF)-----
WED
-
-
(•]-----
GS FLAG
WHTIBRN/VIO LOC FLAG (•) TO CD-106-7R22 NAV FLAG f-) WNT/BRN/RED LOC FLAG (•) FR CD-105-8 FLAG (•) WHT NAv WHT/BRNIOAN FR (•) TO TO -
GND-BLK-PCBB1CBI
1g
STORASSV-M/VIL-STTRIDI
28
10
29
11
30
12
31
13
32
14
CD-106-10-BLK-14
1-)
14 VDC-GRN-CB/BR
VDC
CD-ton-17-RED-14r7svoc
AS5Y
FCE E1CB1-BAN-14
QUTPUT-WHT-CB/BRA$5V MOT DR-wMT/RED-GEAR
REF
CO-106-134RN-AZM
MOT DR-VIO-GEAR
RATE
CD-106-14-YEL-AIM
MOT
MOT
(+)
(-i
A•-WHT/8LU-PCBB18107-3 CD-106-27-WHTIVIO-GSUP(•\ CD-106-25-WHTIGRA-GSDN(•)
INOTUSED)
PCB 8]C460
-NAVFLAG(-)-CD-106-31
C -132-i-BLK-GND-
NAVFLAGl•l-WMT-CB-106-22
-BRN-CB/BRASSY
CD-132-12-RED-14/28VDC-
INOTUSED)
-GRN-CEVBRASSY
-X
-----14VDC-BLK-PCBB1CB1
PCBB1CB1-WHT/AID-MOYDR
-oUTPUT-WHT-CB/BR ASSY
PCBB1C31-VIO-MOT
14/28 ------
A2M
VDC -RED-PCB
-MOT OR-VIO-GEARMOTOR (-)
81CB1
-A+ -WHT/BLU-PC8
REF4RN-PCB
810715
81CB1
CD-306-1-BLK-GNO
-
-
818107-3 eininy
-
AZM
RATE
-
YEL
PCB 81CB1
-
PCB 518107-3-BLU-A.
-
-
y
-
un.ymrin.,r.
33
-
r"
y
a""
RTR
15
(Al
-
GRNmirr
MTatri
16
.41
BLK
BR
1
-
annir
=
SAUSH --
PCB 818107-3
-
WHT/BRNIGRN
-
LOC
SW
--
--
(NOT USED)
35 36
L-R
17 18
-
L-R
f•]
-
VIO-BR
(•) R-GRA-BR
GLO(K
(Al--------
CD-106-15-GAN-RTR
BLK-6
O 1
t•) L
PCS 815107-3-BRN-TO-FR
l•l
CD-106-16-BLU-ATR CD-106-18-GRA-L-R
TO (C)
(•¡ R COURSE POT
PCB
BAUSN
CD TM-32-WHTIBRN/RED-LOC CD-1M-13-wMTIBRNIORN-
(•I
FLAG TO-FR
(•l TO
CD-1M-34-WHTIBRNTYEL-TO-FR
A•-BLU-$OL A•-BLK-GYRO
FR
OOO
l•I FR
TO-FR
PCS 81B107-3-JUMPER-WHTIBLU
CD-100-22-WHT/RED-CAS (+)
ASSV
SIG JUMPER-BLU-HDG
POT BR AS5Y
JUMPER-VIO-HDG
POT BR ASSY
VAC 5W
A•-WHTIBLU-JUMPER-PCB A•-wwTIBLU-PCs alcal TO-FR
CD-106-35-WHTIBRN/GRN-LOC5W
---------
CD-106-19-WHT-HDGICRS EXC CAS POT BR ASSY-BLU-JUMPEA CO-106-20-WHTIBLK-HDGICAS EXC CRS POT BR ASSY-VIO-JUMPER CD-106-21-WHTIBRN-HDG SIG
(•) FA
CD-106-17-VIO-L-R
FLAG f•) TO
MEADING POT BRUSH ASSY
ASSY
BLK-3
PCG 816107-3-ORN-TO-FR
CD-106-31-WHTIBRN/VIO-LOC
DR
MOT OR-WHT/RED-GEARMOTOR (+)
-
818107-3-
VOC
PCSE1C31-WMfdUTPLTT
[•lTO-BRN-BR I•¡ FRARN-BR
SLIP RING ASSY
BRUSH
L
-
818107-3-CD-106-23-WHTIORN-STTR GS FLAG METER BRACKET
BLKA BLK-2 :D-1M-29-BRN-GS CD-106-30-RED-
FLAG (_i
GS
FLAG (-)
GS FLAG ¡•)
GS FLAG (•¡
-
-
RESISTOR
lEl
CD-106-24-WHT/YEL-STTR
IDI
CD-106-25-WHTIGRN-STTR
(G)
CD-106-26-WHT/BLU-STTR
(F)
RED
CYRO VACUUM SW1TCH
BLK-PCB 518107-3
GS FLAG METER RESISTOR
NOT USED WITH SIC460
PCB
.
RED
-
CS
Figure
-
CS
FLAG MTR BRKT
FLAG MTR BRKT
3-18.
Wiring
Diagram
(NSD
52D136-All)
Page
3-65
-
68S304
SECTION
EQAROÀ
CIRCUIT r--PCBSIDA60-BAN-7¾DCIREF)BRU
CD I32 19
i
-MDGPOTORASSY-WMTALK-MDGCRSEXC
20
2
INTLTGND-OFZ31 4- PAR.E'JN
733J AL.L OTHERS.
4
St..AVING
saves
c.orL
SLAVIN&
U?. f^"
5L."V.'"E '5LAVING
CDIL
C£NTEX<
TAP'
cm
vorca
CT CT
(R) R Trcic .5"-ATCÆ ('t)
(c)
CT
,57ATOR(2)
CT
.5TATOR.(×)
L J.
i
CGIL
.
.
.
..
.
...
..
T
X
'
.4
//
.VO¯E5'
RC- STGA.S exc tra caut, 4W, ARE :N MCXcFARAos < PAcr'tW
2VoMETAL
FIL.M
UNLESS
RER'WISE
C
J
EY!
/E
.
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