CFM56-3 technical training manual : Component Identification
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CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION This CFMI publication is for Training Purpose Only. The information is accurate at the time of compilation; however, no update service will be furnished to maintain accuracy. For authorized maintenance practices And specifications, consult the pertinent maintenance publications. The information (including technical data) contained in this document is the property of CFM International (GE and SNECMA). It is disclosed in confidence, and the technical data therein is exported under a U.S. Government license. In addition, the technical data therein and the direct product of those data, may be diverted, transferred, exported or disclosed in any manner not provided for by the license without the prior written approval of both the U.S. Government and CFM International
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GENERAL Page 1 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ALL CFMI PROPRIETARY INFORMATION
GENERAL Page 2 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION ITEM NO.
IDENTIFY THE LINE, ACCESSORY OR COMPONENT
ITEM NO.
SELECT THE PURPOSE THAT MATCHES THE LINE ACCESSORY OR COMPONENT
Rear Spinner Cone
Elliptical shape prevents ice formation
Abradable Liner
Balance the low pressure system
Ps12 Sensing Port (4)
Supplies engine serial number, thrust rating and takeoff rating
Engine Data Plate
Supplies high voltage power to the igniters
Balance Screws
Supplies sound suppression
Forward Acoustical Panel
Prevents direct contact of fan blade into the case during engine operation
Ignition Exciter (2)
Electronic over-ride of the MEC
Power Management Control (PMC)
Static air pressure from static port to Ps12 manifold
T12 Fan Inlet Sensor (stowed)
Fan inlet temperature to PMC
Front Spinner Cone
Axial retention of fan blades and provision for balance screw placement
CFM56-3 ALL CFMI PROPRIETARY INFORMATION
TRAINING MANUAL
GENERAL Page 3 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ALL CFMI PROPRIETARY INFORMATION
GENERAL Page 4 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION ITEM NO.
IDENTIFY THE LINE, ACCESSORY OR COMPONENT Fan Frame Left Hand Ignition Lead Air Manifold
ITEM NO.
SELECT THE PURPOSE THAT MATCHES THE LINE ACCESSORY OR COMPONENT Transmits high voltage from the upper exciter to the 8 o’clock igniter Supplies cooling air to the right and left ignition lead conduit for lead cooling Front section shouldered to give fan blade containment
Fan Case
1 of 2 main engine structural frames
Right Hand Ignition Lead
Used for engine lifting
Front Lifting Trunnion
Transmits high voltage from the lower exciter to the 4 o’clock igniter
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GENERAL Page 5 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ALL CFMI PROPRIETARY INFORMATION
GENERAL Page 6 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ITEM NO.
IDENTIFY THE LINE, ACCESSORY OR COMPONENT
ITEM NO.
SELECT THE PURPOSE THAT MATCHES THE LINE ACCESSORY OR COMPONENT
J2 Connector
Access PLA gain adjustment
J5 Connector
Input signal from the flight deck
J4 Connector
Monitor connector for test
J3 Connector
Input signal for N1, T12, and PLA output signal for MEC torque motor
Cover Plate PMC
Input power supplied by the control alternator
Ps12 Signal line
Air signal from Ps 12 manifold to PMC
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GENERAL Page 7 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ALL CFMI PROPRIETARY INFORMATION
GENERAL Page 8 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ITEM NO.
IDENTIFY THE LINE, ACCESSORY OR COMPONENT Visual Oil Quantity Window Oil Tank Anti-Siphon Line
ITEM NO.
SELECT THE PURPOSE THAT MATCHES THE LINE ACCESSORY OR COMPONENT Supplies oil overflow containment during servicing Prevents oil tank siphoning after engine shutdown
Oil Scupper
To support the engine on the ground
Fan Frame Ground Handling Mount (Right Hand)
To balance internal sump pressures
Gravity Fill Oil Cap
Supplies visual inspection of oil tank service limits Seals oil tank and allows for servicing and oil sampling
Oil Tank Vent Line Oil Tank Quantity Transmitter
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Transmit oil tank quantity to flight deck
GENERAL Page 9 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ALL CFMI PROPRIETARY INFORMATION
GENERAL Page 10 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ITEM NO.
IDENTIFY THE LINE, ACCESSORY OR COMPONENT Oil Tank Pressure Fill and Overflow Ports Oil Scavenge Return Line
ITEM NO.
SELECT THE PURPOSE THAT MATCHES THE LINE ACCESSORY OR COMPONENT Supplies N1 speed signal to PMC and flight deck Supplies oil from oil tank to lube unit pressure pump
Oil Tank
Storage of engine lubrication oil
Lube Unit Supply Line
Supplies scavenge oil return from servo heater to oil tank Supplies remote pressure servicing of the oil tank
N1 Speed Sensor
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GENERAL Page 11 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ALL CFMI PROPRIETARY INFORMATION
GENERAL Page 12 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ITEM NO.
IDENTIFY THE LINE, ACCESSORY OR COMPONENT
ITEM NO.
SELECT THE PURPOSE THAT MATCHES THE LINE ACCESSORY OR COMPONENT
Aft Acoustical Panel
Cooling of CSD/IDG oil
Mid Acoustical Panel
Sound Suppression
CSD/IDG Oil Cooler Pad
Air directed to the aircraft generator for cooling
Generator Cooling Inlet
Sound suppression
Outlet Guide Vanes (80)
Points fan discharge air flow in a straight path
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GENERAL Page 13 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ALL CFMI PROPRIETARY INFORMATION
GENERAL Page 14 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ITEM NO.
IDENTIFY THE LINE, ACCESSORY OR COMPONENT
ITEM NO.
SELECT THE PURPOSE THAT MATCHES THE LINE ACCESSORY OR COMPONENT
Alternate Vibration Sensor Pad
Supplies HPC bleed air to the HPT shroud to increase engine efficiency
T2.5 (CIT) Sensor (Inside Frame)
Supplies compressor inlet temperature to MEC
Air Ignition Tube
Supplies static rigging of variable stator vane actuator to the system
High Pressure Turbine Clearance Control Valve (HPTCCV)
Ignite fuel/air mixture and BSI port S10
VSV Actuator Rig Pin Hole (Right Side)
Connects No. 1 bearing vibration sensor with aircraft
Electrical Connector, Bearing Vibration Sensor
To connect each VSV actuation ring
Igniter - Lower Right Hand Side Combustor Case
Alternate No. 1 bearing vibration sensor mounting pad Supplies cooling air from the booster to the air manifold
VSV Actuation Connecting Links
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GENERAL Page 15 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ALL CFMI PROPRIETARY INFORMATION
GENERAL Page 16 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ITEM NO.
IDENTIFY THE LINE, ACCESSORY OR COMPONENT Borescope Port S7 Borescope Port S9 Borescope Port S6 Borescope Port S3
ITEM NO.
SELECT THE PURPOSE THAT MATCHES THE LINE ACCESSORY OR COMPONENT BSI stage 8 trailing edge and stage 9 leading edge HPC BSI stage 5 trailing edge and stage 6 leading edge HPC BSI stage 6 trailing edge and stage 7 leading edge HPC BSI stage 1 trailing edge and stage 2 leading edge HPC
Borescope Port S1
BSI IGV and leading edge stage 1 HPC
Borescope Port S5
BSI stage 2 trailing edge and stage 3 leading edge HPC BSI stage 4 trailing edge and stage 5 leading edge HPC BSI stage 3 trailing edge and stage 4 leading edge HPC BSI stage 7 trailing edge and stage 8 leading edge HPC
Borescope Port S2 Borescope Port S4 Borescope Port S8
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GENERAL Page 17 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ALL CFMI PROPRIETARY INFORMATION
GENERAL Page 18 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ITEM NO.
IDENTIFY THE LINE, ACCESSORY OR COMPONENT
ITEM NO.
SELECT THE PURPOSE THAT MATCHES THE LINE ACCESSORY OR COMPONENT
IGV Actuation Half Ring
Stage 2 VSV scheduling
Stage 3 Actuation Half Ring
Connects turbine frame bearing vibration sensor to aircraft
Stage 2 Actuation Half Ring
IGV angle scheduling
Stage 1 Actuation Half Ring
Stage 3 VSV scheduling
Electric Connector, Bearing Vibration Sensor
Stage 1 VSV scheduling
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GENERAL Page 19 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ALL CFMI PROPRIETARY INFORMATION
GENERAL Page 20 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ITEM NO.
IDENTIFY THE LINE, ACCESSORY OR COMPONENT
ITEM NO.
SELECT THE PURPOSE THAT MATCHES THE LINE ACCESSORY OR COMPONENT
Fuel Nozzle (20)
Supplies fuel to the combustion chamber
Shrouded Fuel Manifold
Supplies stage 9 bleed air to the HPTCCV
HPC Stage 9 Bleed Tap
Supplies fuel to the fuel nozzles
Bleed Bias Sensor (CBP)
Senses use of customer bleed air
HPTCCV Discharge Manifold
Supplies stage 5, stage 9, or mixed bleed air to HPT shroud
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GENERAL Page 21 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ALL CFMI PROPRIETARY INFORMATION
GENERAL Page 22 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ITEM NO.
IDENTIFY THE LINE, ACCESSORY OR COMPONENT Turbine Frame Distribution Box LPT Case Cooling
ITEM NO.
SELECT THE PURPOSE THAT MATCHES THE LINE ACCESSORY OR COMPONENT Supplies fan discharge air to LPT Case for cooling Prevents flame propagation in the center vent tube
LPT Case Cooling Manifold
Supports the engine on the ground
Turbine Frame Ground Handling Mount
Supplies fan discharge air to LPT case cooling manifold
Flame Arrestor
Connects EGT system to flight deck indicator
T4.95 (EGT) Junction Connector
Second structure frame of engine
T4.95 (EGT) Thermocouple Probes (9)
Sense exhaust gas temperature
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GENERAL Page 23 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ALL CFMI PROPRIETARY INFORMATION
GENERAL Page 24 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ITEM NO.
IDENTIFY THE LINE, ACCESSORY OR COMPONENT
ITEM NO.
SELECT THE PURPOSE THAT MATCHES THE LINE ACCESSORY OR COMPONENT
Borescope Port S22
Scavenge return of oil from aft sump to lube unit
Aft Sump Oil Scavenge Line
BSI stage 3 leading edge and stage 2 trailing edge LPTR
Borescope Port S17
Supplies oil to aft sump from lube unit
Aft Sump Supply Line
BSI HPTR trailing edge and stage 1 LPTR leading edge BSI stage 4 leading edge and stage 3 trailing edge LPTR
Borescope Port S21
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GENERAL Page 25 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ALL CFMI PROPRIETARY INFORMATION
GENERAL Page 26 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ITEM NO.
IDENTIFY THE LINE, ACCESSORY OR COMPONENT
ITEM NO.
SELECT THE PURPOSE THAT MATCHES THE LINE ACCESSORY OR COMPONENT
Low Pressure Turbine Stator Case
Supplies stage 5, stage 9, and mixed bleed air to the HPT shroud
HPC Stage 9 Bleed Port (4)
Support the HPT shrouds in the HPTR area
HPC Stage 5 Bleed Manifold (4) LPT Stage 1 Cooling
Stage 9 customer bleed air
HPT Shroud Support
Supplies fuel to left hand side nozzles
Fuel Manifold (Left Hand Side)
Connect EGT system to flight deck indicator
T4.95 (EGT) Junction Connector
Transmits vibration signal from the turbine frame sensor to connector
Turbine Frame Vibration Sensor Cable
Enclose the four LPT stages
HPTCCV Discharge Manifold
Supplies stage 5 bleed air for stage 1 LPT nozzle cooling BSI HPTR trailing edge and stage 1 HPTR leading
Borescope Port S18
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GENERAL Page 27 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ALL CFMI PROPRIETARY INFORMATION
GENERAL Page 28 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ITEM NO.
IDENTIFY THE LINE, ACCESSORY OR COMPONENT
ITEM NO.
SELECT THE PURPOSE THAT MATCHES THE LINE ACCESSORY OR COMPONENT
Left Hand Ignition Lead
Stage 5 customer bleed air
HPC Stage 5 Start Bleed Valve
Supplies fuel to the combustion chamber
Igniter–Lower Left Hand Side Combustion Case
Transmits high voltage from the upper exciter to the 8:00 igniter Supplies start air pressure to the HPC stage 5 start bleed valve
Fuel Nozzle (20) CDP (PS3) Tap and Signal Line
Ignites the fuel/air mixture and BSI Port S11
HPC Stage Bleed Port (3)
Aerodynamically unloads the HPC during start
Combustion Case
Transmits the compressor discharge pressure signal to the MEC
Air Signal Start Bleed Tube
Contains the combustion chamber
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GENERAL Page 29 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ALL CFMI PROPRIETARY INFORMATION
GENERAL Page 30 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ITEM NO.
IDENTIFY THE LINE, ACCESSORY OR COMPONENT Master VBV Ball Screw Actuator (1) Fan Duct Panel Variable Bleed Valve (12) VBV Stop Mechanism Kicker Stop Feedback Rod Clevis
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ITEM NO.
SELECT THE PURPOSE THAT MATCHES THE LINE ACCESSORY OR COMPONENT Changes the VBV fuel gear motion into VBV linear rotational motion Supplies by-pass of primary airflow into the secondary airflow Points airflow from the booster through the open VBV doors to the fan by-pass air Controls the range of movement of the VBV fuel gear motor Transmits VBV master ball screw position to feedback cable Supplies a stop for the free lever
GENERAL Page 31 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
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GENERAL Page 32 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ITEM NO.
IDENTIFY THE LINE, ACCESSORY OR COMPONENT Return Lever VBV Feedback Cable Rod End Bearing Free Lever VSV Rod End Pressure Line VSV Head End Pressure Line VBV Gear Motor
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ITEM NO.
SELECT THE PURPOSE THAT MATCHES THE LINE ACCESSORY OR COMPONENT Uses fuel pressure to turn the motor drive, which opens or closes the VBVs Supplies a biased feedback signal to the MEC to further open VBV doors Transmits rod end fuel pressure from the MEC to the VSV actuator Transmits head end fuel pressure from the MEC to the VSV actuator Adjusts the length of the VBV feedback cable during the travel check Returns the VBV to the normal MEC schedule
GENERAL Page 33 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
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GENERAL Page 34 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ITEM NO.
IDENTIFY THE LINE, ACCESSORY OR COMPONENT TC2 Signal Line Idle Solenoid TC3 Signal Line (-3B2/-3C only) Cavity Drain VSV Rod End Pressure Line VSV Head End Pressure Line TC1 Signal Line
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ITEM NO.
SELECT THE PURPOSE THAT MATCHES THE LINE ACCESSORY OR COMPONENT Carries Pb or Pc fuel pressure from the MEC to the HPTCCV 9th stage valve Carries Pb or Pc fuel pressure from the MEC to the HPTCCV 5th stage valve Drains oil from the forward sump seal cavity to overboard Carries fuel pressure from the MEC to the VSV actuators to open the VSVs Electrically supplies flight and ground idle (high and low idle) by the aircraft’s flight condition Carries fuel pressure from the MEC to the VSV actuators to close the VSVs Signal pressure to the timer solenoid during a takeoff with n2 larger than 95%
GENERAL Page 35 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
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GENERAL Page 36 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ITEM NO.
IDENTIFY THE LINE, ACCESSORY OR COMPONENT Electric Connector VSV Feedback Cable Pb Pressure Line VBV Feedback Cable Adjustment Screw VSV Feedback Cable
ITEM NO.
SELECT THE PURPOSE THAT MATCHES THE LINE ACCESSORY OR COMPONENT Transmits PLA from the MEC to the PMC and transmits the TMC from the PMC to the MEC To rig the position of the pointer with the VSV rig notch To rig the position of the pointer with the VBV rig notch Carries Pb (low) pressure from the CIT (T25) sensor to the MEC Carries P6 (high) pressure from the MEC to the CIT (T25) sensor
P6 Pressure Line
Indicates VBV door position to the MEC
Adjustment Screw VBV Feedback Cable
Indicates VSV position to the MEC
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GENERAL Page 37 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
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GENERAL Page 38 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ITEM NO.
IDENTIFY THE LINE, ACCESSORY OR COMPONENT Oil Scavenge Return Line Oil Scavenge Line
ITEM NO.
SELECT THE PURPOSE THAT MATCHES THE LINE ACCESSORY OR COMPONENT Transmits flight deck throttle demand to the MEC Supplies static rigging procedure of the VSV actuator to the system
VSV Actuator Rig Pin Hole (Left Side)
Supplies positive fuel ON/OFF selection
VSV Actuator (Left Side)
Supplies fuel from the servo fuel heater to the MEC Fuel pressure from the MEC to the rod end or the head end actuates the VSV system Supplies scavenge oil return from the servo heater to the oil tank
VBV Open Port Line Power Lever Fuel Shutoff Lever
Holds all servo mechanism lines
Full Reverse Power Lever Stop
Supplies stoppage for the power lever at its 130-degree stop (non-adjustable) Supplies mechanical stoppage for the power lever (non-adjustable) Supplies oil from the scavenge filter to the servo fuel heat exchanger Supplies fuel from the MEC to the VBV motor to open the VBVs Supplies fuel from the MEC to the VBV motor to close the VBVs
Fuel Supply Line 9 O’clock Tube Bundle VBV Close Port Line Full Forward Power Lever Stop
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GENERAL Page 39 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
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GENERAL Page 40 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ITEM NO.
IDENTIFY THE LINE, ACCESSORY OR COMPONENT LP Fuel Pump Screen Assembly Servo Fuel Heater
ITEM NO.
SELECT THE PURPOSE THAT MATCHES THE LINE ACCESSORY OR COMPONENT De-ices the servo fuel by convection transfer of heat from the scavenge oil Transmits power from the IGB to the AGB for the accessories
Transfer Gearbox
Supplies gear drive for the accessories
Main Fuel/Oil Heat Exchanger
Gives access to the LP stage impeller for verification of rotation Supplies vent air from AGB to the forward sump, & protects horizontal drive shaft Transmits fuel from the pump to the servo heater Two-stage pump that supplies fuel pressure and drive for the MEC Pb supply to the timer and timer solenoid valve from the fuel pump Transmits fuel from the MEC to the fuel flow meter Cools the engine oil through convection transfer of heat from the oil to the fuel Supplies schedule fuel for combustion and servo operation
Fuel Supply Heater Tube Pb Pressure Line (-3B2/-3C only) Fuel Pump Fuel Supply Line Horizontal Drive Shaft Housing Accessory Gearbox Main Engine Control (MEC)
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GENERAL Page 41 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
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GENERAL Page 42 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ITEM NO.
IDENTIFY THE LINE, ACCESSORY OR COMPONENT Forward Sump MCD Lube Supply Filter PS12 Signal Line Oil Scavenge Line Lubrication Unit AGB/TGB Sump MCD Aft Sump MCD Fuel Filter
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ITEM NO.
SELECT THE PURPOSE THAT MATCHES THE LINE ACCESSORY OR COMPONENT Collects and filters metallic and non-metallic particles from the AGB/TGB sumps Supplies one supply pump and three scavenge pumps for oil circulation Supplies scavenge oil from the lube unit to the scavenge filter element Collects and filters metallic and non-metallic particles from the aft sump Supplies static air pressure from the PS12 manifold to the MEC Filters the fuel before the fuel flows to the high pressure stage of the fuel pump Filters the supply oil before the oil flows to the sumps Collects and filters metallic and non-metallic particles from the forward sump
GENERAL Page 43 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ALL CFMI PROPRIETARY INFORMATION
GENERAL Page 44 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ITEM NO.
IDENTIFY THE LINE, ACCESSORY OR COMPONENT
ITEM NO.
SELECT THE PURPOSE THAT MATCHES THE LINE ACCESSORY OR COMPONENT
AGB Drain Port
Supplies oil from the lube unit to the AGB
Lube Scavenge Filter
Filters the scavenge oil before the oil flows to the servo heater
AGB Alignment Turnbuckle
Supplies drainage of the AGB sump
MCD Retention Bar
Supplies a positive lock of the MCD, and prevents partial disengagement Connects the TGB to the AGB to supply oil scavenging Aligns the AGB for horizontal drive shaft installation Supplies a visual indication of the lube supply filter clogging
Oil Supply Line Visual Clogging Indicator Oil Scavenge Line
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GENERAL Page 45 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ALL CFMI PROPRIETARY INFORMATION
GENERAL Page 46 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ITEM NO.
IDENTIFY THE LINE, ACCESSORY OR COMPONENT TS5 Pressure Line (-3B2/-3C only) P7 Pressure Line HPTCCV Timer (-3B2/-3C only) HPTCCV Timer Lockout Solenoid (-3C only) Pb Pressure Line TC1 Pressure Line (-3B2/-3C only) TS9 Pressure Line (-3B2/-3C only)
ITEM NO.
SELECT THE PURPOSE THAT MATCHES THE LINE ACCESSORY OR COMPONENT Changes the operation of the HPTCCV during takeoff Transmits Pb (low) pressure from the T2 sensor to the MEC Supplies output of Pc or Pb from the TCC timer to the TCC valve to control stage 5 bleed* Supplies output of Pc or Pb from the TCC timer to the TCC valve to control stage 9 bleed** Controls the operation of the stage 5 valve of the TCCV (timer disarmed) Weight-on-wheels sensing relay, airborne condition prevents TC3 fuel flow to TCCV timer Transmits P7 (high) pressure from the MEC to the T2 sensor *NOTE: Timer disarmed TS5 ports Tc1 fuel pressure. **NOTE: Timer disarmed TS9 ports Tc2 fuel pressure.
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GENERAL Page 47 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
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GENERAL Page 48 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ITEM NO.
IDENTIFY THE LINE, ACCESSORY OR COMPONENT Bellows/Valve Housing (T2) Pb Pressure Line (-3b2/-3C only)
ITEM NO.
SELECT THE PURPOSE THAT MATCHES THE LINE ACCESSORY OR COMPONENT Pc pressure holds the timer latching valve in the latched position * Controls the operation of the stage 9 valve of the TCCV (timer disarmed)
HPTCCV Timer Adjustment Screw (-3B2/-3C only)
Supplies low pressure for timer operation
Pc Pressure Line (-3B2/-3C only)
Changes the fuel pressure to the MEC with changes in inlet temperature The timer starts its sequence when pressure indicates to lock-out solenoid that N2 is 95% Supplies the adjustment for the timer operation speed
TC2 Pressure Line (-3B2/-3C only) T2 Sensor (Stowed) TC3 Pressure Line (-3B2/-3C only)
Supplies the fan inlet temperature to the MEC
*NOTE: This lets the timer open one time each engine cycle
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GENERAL Page 49 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
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GENERAL Page 50 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ITEM NO.
IDENTIFY THE LINE, ACCESSORY OR COMPONENT
ITEM NO.
SELECT THE PURPOSE THAT MATCHES THE LINE ACCESSORY OR COMPONENT
Hand Cranking Pad
Drains to Overboard
Hydraulic Pump Pad Drain
Supports the hydraulic pump
Hydraulic Pump Pad
Drains to overboard
Starter and Hand Cranking Pad Drain
Drains to overboard
CSD/IDG Cavity Reservoir Standpipe Drain
Supports the air starter
Pneumatic Starter Pad
Lets the operator rotate the core during maintenance Transmits power to the PMC and flight deck N2 speed indication
CSD/IDG Pad CSD/IDG Pad Drain
Supports the CSD/IDG
Control Alternator
Makes sure oil level of the CSD/IDG is normal during servicing
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GENERAL Page 51 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
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GENERAL Page 52 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION
ITEM NO.
IDENTIFY THE LINE, ACCESSORY OR COMPONENT Core Major Module Fan Major Module Low Pressure Turbine (LPT) Major Module
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ITEM NO.
SELECT THE PURPOSE THAT MATCHES THE LINE ACCESSORY OR COMPONENT Contains the LPT rotor, LPT stator, LPT shaft, and the LPT frame Contains fan/booster, No. 1 and 2 bearing support, IGB, No. 3 bearing, fan frame, TGB and AGB Contains HPC rotor & stators, combustor case & liner, HPT nozzle & rotor, and LPT nozzle
GENERAL Page 53 Dec 00
CFM56-3
TRAINING MANUAL
COMPONENT IDENTIFICATION THIS PAGE LEFT INTENTIONALLY BLANK
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GENERAL Page 54 Dec 00
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