Tm 11-5855-214-10 Operator Manual Csw Nv Antvs5

TM 11-5855-214-10 TECHNICAL MANUAL

OPERATOR’S MANUAL NIGHT VISION SIGHT, CREW SERVED WEAPON AN/TVS-5 (NSN 5855-00-629-5327)

HEADQUARTERS, DEPARTMENT OF THE ARMY 15 FEBRUARY 1989

Distribution authorized to the Department of Defense and DOD contractors only for official use or for administration or operational purposes. was made on 3 November 1988.

This determination

Other requests for this document will be

referred to Commander, US Army Communications-Electronics Command and Fort Monmouth, ATTN:

AMSEL-LC-ME-P, Fort Monmouth, NJ 07703-5000.

DESTRUCTION NOTICE - Destroy by any method that will prevent disclosure of c o n t e n t s

o r

r e c o n s t r u c t i o n

o f

t h e

d o c u m e n t .

●

Do not press eyeguard except with eye area of face for operation of sight. Sight emits illumination which can be detected by enemy if eyeguard is used improperly.

●

Do not use sight without eyeguard attached or personal injury from weapon recoil may result.

●

The contents of the mercury batteries are extremely irritating to the eyes, oral, and nasal passages, therefore, be careful when discarding the batteries. To prevent explosion, batteries should not be disposed of by burning.

●

Do not short circuit.

●

Do not recharge.

●

Do not store the night vision sight with the batteries in it.

●

Always replace both Mercury batteries at the same time. A

LITHIUM BATTERIES BA-5567

WARNING A lithium-sulfur dioxide (Li-S02) battery used with the AN/TVS-5 contains pressurized sulfur dioxide (S02) gas. The gas is toxic, and the battery MUST NOT be abused in any way which may cause the battery to rupture.

WARNING DO NOT heat, short circuit, crush, puncture, mutilate, or disassemble batteries.

WARNING DO NOT USE any battery which shows signs of damage, such as bulging, swelling, disfigurement, brown liquid in the plastic wrap, a swollen plastic wrap, etc.

WARNING DO NOT test Li-SO2 batteries for capacity.

WARNING DO NOT recharge Li-SO2 batteries.

B

WARNING DO NOT use water to extinguish Li-SO2 battery fires if a Shock hazard exists due to high voltage electrical equipment in the immediate vicinity [i.e., greater than 30 volts, alternating current (at) or direct current (dc)].

WARNING If the battery compartment becomes hot to the touch, if you hear a hissing sound (i.e., battery venting), or smell irritating sulfur dioxide gas, IMMEDIATELY Turn Off the equipment. Remove the equipment to a well ventilated area or leave the area.

WARNING DO NOT use a HaIon type fire extinguisher on a lithium battery fire.

B.1/(B.2 blank)

WARNING In the event of a fire, near a lithium battery(ies), rapid cooling of the battery(ies) is important. Use a carbon dioxide (CO2) extinguisher. Control of the equipment fire, and cooling, may prevent the battery from venting and potentially exposing lithium metal. In the event that lithium metal becomes involved in fire, the use of a graphite based Class D fire extinguisher is recommended, such as Lith-X or MET-L-X.

WARNING DO NOT store lithium batteries with other hazardous materials and keep them away from open flame or heat.

C

CORROSIVE CHEMICAL FIRST AID ●

In the even of contact with the eyes, immediately flush the eyes with water and continue to flush for 15 minutes. The first few seconds after contact are critical and immediate flushing of the eyes may prevent permanent damage. An eyewash fountain is preferred, but an eyewash hose or any other water source should be used in an emergency. Alkali (base) burns are usually more serious than acid burns.

●

D

Strong chemicals burn the skin rapidly. There is no time to waste. Flush the area with water immediately. Remove and discard clothing, socks and shoes (obtain

other clothes and shoes). Continue to flood the area, while clothing is being removed. ●

Consult warnings on the product label for full first-aid information. Give the label information to the attending physician.

●

Neutralizers and solvents (alcohol, etc.) should not be used by the first aider. The spread of skin absorbing corrosive poison, like phenol, can cause death. Don’t depend on spilled chemicals to evaporate from your clothes. Exposure of skin can kill you.

E/(F blank)

*TM 11-5855-214-10 Technical Manual No. 11-5855-214-10

Headquarters Department of the Army Washington, DC, 15 February 1989

OPERATOR’S MANUAL NIGHT VISION SIGHT, CREW SERVED WEAPON AN/TVS-5 (NSN 5855-00-629-5327) REPORTING ERRORS AND RECOMMENDING IMPROVEMENTS You can help improve this manual. If you find any mistakes or if you know of a way to improve the procedures, please let us know. Mail your letter or DA Form 2028 (Recommended Changes to Publications and Blank Forms) direct to: Commander, US Army, Fort Monmouth, ATTN: AMSEL-LC-ME-PS, Fort Monmouth, New Jersey 07703-5000. In either case, a reply will be furnished direct to you. This

manual

supersedes

TM

11-5855-214-10,

13

September 1985.

i

TABLE OF CONTENTS Paragraph Page CHAPTER 1. INTRODUCTION Section I. General Scope . . . . . . . . . . . . . . . . . . . . . Consolidated index of Army publications and blank forms . . . . . . . . . . . . . . . . . . . Maintenance forms, records, and reports . . . . . . . . . . . . . . . Reporting equipment improvement recommendations (EIR) . . . . . . . . . . . . . . . . . . . . Administrative storage. . . . . . . Destruction of Army electronics materiel . . . . . . . Hand Receipt (-HR) Manual . . . Il. Description and data Description . . . . . . . . . . . . . . . . Tabulated data . . . . . . . . . . . . . CHAPTER 2. OPERATING INSTRUCTIONS Section I. Operating procedures General . . . . . . . . . . . . . . . . . . . . Unpacking of sight . . . . . . . . . . Installation of batteries . . . . . . Installation of BA-3058/U battery adapter . . . . . . . . . . . Installation of BA-3058/U battery . . . . . . . . . . . . . . . . . . Controls and indicators . . . . . . Installation of Night Vision Sight on crew served weapons . . . . . . . . . . . . . . . . . Reticle operation. . . . . . . . . . . . .

i i

1-1

1-1

1-2

1-1

1-3

1-1

1-4 1-5

1-2 1-2

1-6 1-7

1-3 1-3

1-8 1-9

1-3 1-4

2-1 2-2 2-3

2-1 2-2 2-2

2-4

2-4

2-5 2-6

2-8 2-8

2-7 2-8

2-10 2-17

CHAPTER 2- C o n t . Paragraph Page Operation under normal conditions . . . . . . . . . . . . . . . . Zeroing procedures. . . . . . . . . . II. Operation of auxiliary equipment Low temperature adapter . . . . . Daylight cover . . . . . . . . . . . . . . Battery/equipment overheating . . . . . . . . . . . . . . . III. Operation under unusual conditions Extreme weather conditions . . Operation in high altitudes . . . CHAPTER 3. MAINTENANCE INSTRUCTIONS Section I. Preventive maintenance checks and services (PMCS) Purpose of PMCS . . . . . . Frequency of performing PMCS . . . . . . . . . . . . . . . Correcting and reporting deficiencies . . . . . . . . . . Performance of PMCS . . II. Troubleshooting General troubleshooting information . . . . . . . . . . Troubleshooting procedures . . III. Maintenance procedures Scope of operator maintenance . . . . . . . . . . . . . . . . . . Installation of low temperature adapter assembly . . . . . . . . . . . . . . . . .

2-9 2-27 2-10 2-28

2-11 2-32 2-12 2-32 2-12.1 2-32.1

2-13 2-14

2-33 2-35

3-1

3-1

3-2

3-1

3-3 3-4

3-1 3-2

3-5 3-6

3-5 3-6

3-7

3-6

3-8

3-8

iii

CHAPTER 3 - Cont. Paragraph Page Installation of low temperature adapter assembly (battery adapter) . . . . . . . . . . . . . . . . . Installation of daylight cover . . . . . . . . . . . . . . . . . . . . Installation of eyeguard . . . . . . Inspection of mounting bracket assemblies . . . . . . . . Cleaning . . . . . . . . . . . . . . . . . . . Appendix A. REFERENCES . . . . . . . . . . . . . . B. COMPONENTS OF END ITEMS LIST . . . . . . . . . . . . . . C. ADDITIONAL AUTHORIZETION LIST . . . . . . . . . . . . . . . . D. EXPENDABLE SUPPLIES & MATERIALS LIST . . . . . . . .

iv

3-9

3-10

3-10 3-11

3-10 3-10

3-12 3-13

3-13 3-13 A-1 B-1 C-1 D-1

LIST OF ILLUSTRATIONS

Number 1-1 2-1 2-2 2-3 2-4 2-5 2-6 2-7 2-8 2-9 2-10 2-11 2-12 2-13 2-14 2-15 2-16 3-1 3-2 3-3 B-1 C-1

Title Night Vision Sight, Crew Served Weapon AN/TVS-5 . . . . . . . . . . . . . . . . . Major assemblies and installation of batteries . . . . . . . . . . . . . . . . . . . . . . . . . Major assemblies and installation of battery adapter . . . . . . . . . . . . . . . . . Installation of BA-3058/U batteries in adapter housing . . . . . . . . . . . . . . . . Controls and indicators . . . . . . . . . . . . . . Installation of mounting bracket assembly, M2 . . . . . . . . . . . . . . . . . . . . . Installation of mounting bracket assembly, M60 . . . . . . . . . . . . . . . . . . . . Installation of mounting bracket assembly, M40 . . . . . . . . . . . . . . . . . . . . Installation of mounting bracket assembly, M85/M139/tripod . . . . . . . . . M2 and M85 reticle pattern . . . . . . . . . . . . M40 reticle pattern . . . . . . . . . . . . . . . . . . Use of ranging symbols M2 and M85 . . . . . . . . . . . . . . . . . . . . . . . . . Use of M139 stadia lines for ranging . . . . . . . . . . . . . . . . . . . . . . . . . . M139 reticle pattern . . . . . . . . . . . . . . . . . M60 reticle pattern . . . . . . . . . . . . . . . . . . Forward observer reticle pattern . . . . . . . M2 boresight target with AN/TVS-5 . . . . . Installation of low temperature adapter assembly . . . . . . . . . . . . . . . . . Installation of low temperature adapter assembly . . . . . . . . . . . . . . . . . Installation of eyeguard and daylight cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . Integral components of end items. . . . . . Additional authorization list . . . . . . . . . .

Page

1.0 2-3 2-5 2-6 2-7 2-11 2-13 2-15 2-17 2-19 2-20 2-21 2-22 2-24 2-25 2-26 2-30 3-9 3-11 3-12 B-6 C-4

v

1-0

Figure 1-1.

Night Vision Sight, Crew Served Weapon AN/TVS-5.

CHAPTER 1 INTRODUCTION Section I. GENERAL 1-1. Scope This manual contains instructions operating and maintaining Night Vision Served Weapon AN/TVS-5. Throughout the AN/TVS-5 will be referred to as the weapon sight, or the sight.

for use in Sight, Crew this manual, crew served

1-2. Consolidated Index of Army PubIi-

cations and Blank Forms Refer to the latest issue of DA Pam 25-30 to determine whether there are new editions, changes or additional publications pertaining to the equipment.

1-3. Maintenance Forms, Records, and Reports a. Reports of Maintenance and Unsatisfactory Equipment. Department of the Army forms and procedures used for equipment maintenance will 1-1

be those prescribed by DA Pam 738-750 as contained in Maintenance Management Update. b. Reporting of Item and Packaging Discrepancies. Fill out and forward SF 364 (Report of Discrepancy (ROD)) as prescribed in AR 735-11-2/DLAR 4140.55/ SECNAVINST 4355.18/AFR 400-54/MCO 4430.3J. c. Transportation Discrepancy Report (TDR) (SF 361). Fill out and forward Transportation Discrepancy Report (TDR) (SF 361) as prescribed in AR 55-38/ NAVSUPINST 4610.33C/AFR 75-18/MCO P4610.19D/ DLAR 4500.15. 1-4.

Reporting Equipment Improvement Recommendations (EIR)

If your equipment needs improvement, let us know. Send us an EIR. You, the user, are the only one who can tell us what you don’t like about your equipment. Let us know why you don’t like the design or performance. Put it on an SF 368 (Product Quality Deficiency Report). Mail it to: Commander, US Army Communications-Electronics Command and Fort Monmouth, ATTN: AMSEL-PA-MA-D, Fort Monmouth, New Jersey 07703-5000. We’ll send you a reply.

1-5.

Administrative Storage

Administrative Storage of equipment issued to and used by Army activities will have preventive maintenance performed in accordance with the

1-2

PMCS charts before storing. When removing the equipment from administrative storage the PMCS should be performed to assure operational readiness.

1-6. Destruction of Army Electronics Materiel Destruction of Army electronics materiel to prevent enemy use shall be in accordance with TM 750-244-2.

1-7. Hand Receipt (-HR) Manual Use the hand receipt in TM 11-5855-214-10HR for property accountability of Night Vision Sight, Crew Served Weapon AN/TVS-5.

EQUIPMENT DESCRIPTION AND DATA 1-8. Description Section IL.

The AN/TVS-5 (fig. 1-1) is a portable, batteryoperated electro-optical instrument used for observation and aimed fire of weapons at night. It amplifies reflected light such as moonlight, starlight, and skyglow so that the viewed scene becomes clearly visible to the operator. The sight does not emit visible or infrared light (except from the eye-piece) that can be detected by the enemy. 1-3

It is used on the M2, M60, and M85 machineguns; M40 recoilless rifle, and M139 20-mm cannon. Mounting brackets are provided for each type weapon. A right angle relay assembly is added to the sight when used with the recoilless rifle to allow viewing from the side. The sight may also be used as a tripod mounted observation device.

NOTE If you need a detailed description of the sight, ask your supervisor to see TM 11-5855-214-24&P.

1-9. Tabulated Data Magnification . . . . . . . . . 5.6X Field of view . . . . . . . . . . 9° Eyepiece focus. . . . . . . . +3 to -6.0 diopters Objective lens focus . . . 25.0 meters to infinity Range . . . . . . . . . . . . . . . . 1000-1200 meters for vehicle targets in starlight and moonlight Reticle adjustment . . . . ±2.5° (in ¼ mil increments) Operating conditions . . . -65°F (-54°C) to + 125°F (+ 52°C) Battery type . . . . . . . . . . BA-5567/U (2 each) Voltage . . . . . . . . . . . . 3.0 volts dc Shelf like . . . . . . . . . . . 1 year at 70°F (21°C) Operating life . . . . . . . Approximately 50 hours at normal temperatures

1-4

Battery type . . . . . . . Voltage . . . . . . . . . Shelf life . . . . . . . Operating life . . . .

. . . .

(BA-3058/U) 1.5 volts dc (2 required) . 9 months 50 hours at normal temperatures

1-5/(1 -6 blank)

CHAPTER 2 OPERATING INSTRUCTIONS Section I. OPERATING PROCEDURES 2-1. General This section contains instructions for placing the AN/TVS-5 in operation, and to operate it under normal conditions. The function of controls and indicators is explained. If equipment fails to operate, refer to troubleshooting procedures in chapter 3.

CAUTION The AN/TVS-5 is a precision electro-optical instrument and must be handled carefully at all times.

2-1

2-2. Unpacking of Sight CAUTION Relieve air pressure inside carrying case by depressing core of relief valve located near carrying handle before releasing latches. a. Release the six latches securing top of carrying case (fig. 1-1) and remove top. b. Check contents of case for completeness. All items of equipment shown in figure 1-1, and listed in the basic issue items list, appendix B, should be present. Report all discrepancies. c. Remove carrying bag from carrying case. Open bag and remove the sight. d. Examine the sight for obvious evidence of damage (cracks, chips, abrasions) and check to see that decals are readable. Report deficiencies.

2-3. Installation of Batteries Batteries are shipped separate from the sight and must be installed before operation of the sight.

2-2

WARNING A lithium-sulfur dioxide (Li-S02) battery used with the AN/TVS-5 contains pressurized sulfur dioxide (S02) gas. The gas is toxic, and the battery MUST NOT be abused in any way which may cause the battery to rupture. See the warning page of this manual.

WARNING DO NOT heat, short circuit, crush, puncture, mutilate, or disassemble batteries.

WARNING DO NOT USE any battery which shows signs of damage, such as bulging, swelling, disfigurement, brown liquid in the plastic wrap, a swollen plastic wrap, etc.

WARNING DO NOT test Li-SO2 batteries for capacity.

2-2.1

WARNING DO NOT recharge Li-SO2 batteries.

CAUTION DO NOT dispose of lithium batteries with ordinary trash/refuse. Turn-in batteries to your local serving Defense Reutilization and Marketing Office.

CAUTION ONLY use batteries which have been authorized for this equipment. a. Replace the battery if it shows signs of damage or if it will not properly operate the equipment. b. Remove battery caps (fig. 2-1) by turning counter-clockwise. c. Insert a battery in each battery cap with the negative (-) terminal facing into the cap as shown. d. Replace battery caps and tighten firmly.

2-2.2

Figure 2-1.

Major Assemblies and Installation of Batteries.

2-3

CAUTION Remove the batteries when the sight is not in use to prevent accidental operation. e. Disposition of unserviceable lithium batteries must be through the local servicing Defense Reutilization and Marketing Office (DRMO). Coordinate disposition with your local Installation Environmental Office and DRMO.

2-4. Installation of BA-3058/U Battery

Adapter Install the Battery Adapter as follows: a. Remove battery caps (figs. 2-1 and 2-2) by turning counter-clockwise. b. Remove batteries from caps. c. Replace battery cap at right side of sight. d. Install adapter in place of top battery cap. Tighten using notched side of retainer screw as a tool. e. Properly position the adapter housing on the adapter. f. Insert retainer screw in top of housing. Turn clockwise to tighten.

2-4

Figure 2-2.

Major Assemblies and Installation of Battery Adapter.

2-5

Figure 2-3.

2-6

Installation of Batteries in Adapter Housing.

Figure 2-4.

Controls and Indicators.

2-7

2-5. Installation of BA-3058/U Batteries Batteries are shipped separately from the battery adapter and must be installed before operation of the sight. Install the batteries as follows: a. Remove retaining screw (fig. 2-3) by turning counter-clockwise. b. Lift off adapter housing cover. c. Insert batteries in adapter housing, observing terminal polarities marked on housing. d. Replace adapter housing cover. Insert retaining screw, turn clockwise and e. tighten firmly.

2-6. Controls and Indicators Controls and indicators required to operate the sight are shown in figure 2-4 and described in table 2-1.

CAUTION The daylight cover must be installed when operating the sight during daylight to protect the image intensifier tube from damage.

2-8

Table 2-1. Name ON-OFF/TUBE BRIGHTNESS

ON-OFF RETICLE BRIGHTNESS Objective focus ring Diopter focus ring Diopter indicator

Reticle elevation adjustment actuator

Reticle azimuth adjustment actuator

Reticle patterns:

Controls and Indicators Function Applies power to sight. ON-OFF/RETICLE Enables BRIGHTNESS control to function. Controls brightness of image intensifier tube. Applies power to reticle. Controls brightness of reticle. Adjusts system focus from 25 meters to infinity. Adjusts focus of eyepiece. Indicates direction of rotation of diopter focus ring for + or diopter. Controls reticle adjustment up or down. Each click of adjustment moves strike of round fired 1.0 inch at 100 meters. Controls reticle adjustment right or left. Each click of adjustment moves strike of round fired 1.0 inch at 100 meters. Indicate aiming points of weapons and provide ranging information.

M2/M85 M40 M139 M60 Forward observer

2-9

2-7. Installation of Night Vision Sight on Crew Served Weapons Separate mounting bracket assemblies are provided to mount the sight on the M2 and M60 machineguns and M40 recoilless rifle. One bracket assembly is provided for use on the M85 machinegun, M139 20-mm cannon, or the forward observer tripod. Brackets are shown in additional authorized list (appendix B). Select the proper mounting bracket assembly for your weapon and install the bracket and sight as described below.

NOTE Visually inspect each mounting bracket assembly for obvious damage or missing parts. Pay particular attention to stripped threads on the lever screw assembly and missing nuts and washers where applicable. If you are in doubt of the serviceability of the assembly, or if the sight and bracket assembly cannot be installed as instructed, refer to higher category of maintenance. a. 2-10

M2 Machinegun. (1) Release the catch at the left side of

cartridge covet and raise cover to the UP position (fig. 2-5).

Figure 2-5.

Installation of Mounting Bracket Assembly, M2.

2-11

(2) Position the M2 mounting bracket assembly over the breech of the machinegun and slide it to the rear until it stops. (3) Swing the three locking cams to the rear to secure the bracket to the weapon (side cam first, followed by two top locking cams). (4) Close the cartridge cover and secure it with the catch. (5) Install the sight on the M2 mounting bracket assembly by positioning it in the groove at the top rear of the bracket so that the scribe line on the bracket is aligned with the scribe line in the sight mounting adapter. Tighten the lever screw to secure the sight to the bracket. It will be easier to tighten the lever screw if you will place an empty cartridge case over the lever arm to increase the amount of leverage applied. b. M60 Machinegun. (1) Remove the M60 hinge pin latch and hinge pin (fig. 2-6) from the cover assembly by pressing on the latch (open end of pin) with an empty cartridge case and separating the latch and pin. Place the pin and latch in the aiming guides on the left side of the mounting bracket and press together. (2) Position the mounting bracket assembly on top of the machinegun cover so that holes in the front of the bracket align with cover assembly pin holes. 2-12

Figure 2-6. Installation of Mounting Bracket Assembly, M60.

(3) Insert the longer hinge pin supplied with the bracket and cover assembly. Secure by inserting the pin latch. (4) Loosen the wingnuts on both leg clamps and position the clamps under the cover 2-13

assembly. Secure the mounting bracket by tightening wingnuts firmly.

NOTE The split washer should be next to the wingnut and the flat washer next to the bracket. (5) Install the sight on the M60 mounting bracket assembly by positioning it in the groove on top of the bracket so that the scribed line on the bracket is aligned with the scribed line on the sight mounting adapter. Tighten the lever screw to secure the sight to the bracket. Use an empty cartridge case placed over the lever arm to increase leverage as you tighten the lever screw assembly. c. M40 Recoilless Rifle.

NOTE Installation of the right angle relay on the sight is required and must be performed by direct support maintenance personnel. (1) Position the M40 mounting bracket assembly (fig. 2-7) on top of the tube of the rifle and slide it forward until the two locating pins are fully seated in matching holes in the band. 2-14

Figure 2-7.

Installation of Mounting Bracket Assembly, M40.

2-15

(2) Swing the secondary clamp under and around the tube until it engages the primary clamp. (3) Swing the eyebolts down into the grooves in the secondary clamp and tighten wingnuts securely. (4) Position the sight (with right angle relay attached) on the mounting bracket so that the scribed line on the bracket is aligned with the scribed line in the sight adapter mount assembly. Tighten the lever screw assembly to secure the sight to the bracket. Use an empty cartridge case placed over the lever arm to increase leverage. d. M85 Machinegun, M139 20-mm Cannon, Tripod. (1) Slide the bracket over the dovetail of the weapon adapter. (2) Tighten the locking knob by rotating it clockwise. (3) Loosen the wingnut on the thumbscrew and tighten thumbscrew firmly clockwise. Tighten wingnut to hold thumbscrew in place. (4) Position the sight on the mounting bracket assembly (fig. 2-8) so that the scribed line on the bracket is aligned with the scribed line on the sight mounting adapter. Tighten the lever screw assembly to secure the sight to the bracket. Use an empty cartridge case placed over the lever arm to increase leverage. 2-16

Figure 2-8.

Installation of Mounting Bracket Assembly M85/M139/Tripod.

2-8. Reticle Cell Operation NOTE Installation and maintenance of the reticle assembly must be persupport f o r m e d by d i r e c t maintenance personnel. The proper reticle cell must be installed in the sight before the sight can be used for aimed fire of the weapon. The sight is normally equipped 2-17

with one reticle that is used for the M2 and M85 machineguns. If the sight is to be used with a different weapon, return the sight for installation of the proper reticle. Reticle patterns and target ranging information are described below. Reticle Cell for M2 and M85 Machineguns (fig. 2-9 and 2-11). (1) Vertical lines at top of reticle indicate range (in hundreds of meters) of a 6-foot standing person. Measurement is made from horizontal line to top (or bottom) of each vertical line for the range indicated. (2) Horizontal line of the range scale indicates the range (in hundreds of meters) of a 20-foot target such as a tank viewed from the side. Place left edge of tank at left side of horizontal line; rnage to tank is read from scale where right edge of tank falls. Width of tanks is approximately half the length, so placement of tank width on ranging symbol is read as one half the range scale value. (3) Aiming points for ranges from 0 to 1200 meters are shown as small dots in a vertical row down the center of the reticle. The aiming point out to 250 meterts is in the center of the two horizontal lines. (4) Locate target, estimate range, and adjust machinegun to place corresponding aiming point on target. 2-18

Figure 2-9.

M2 and M85 Reticle Pattern.

b. Reticle Cell for M40 Recoilless Rifle (fig. 2-10) and Stadia Lines (fig. 2-12). (1) Range to a 20-foot target such as a tank viewed from the side is determined by placing the sight so that the front and rear of the tank just fit 2-19

Figure 2-10.

2-20

M40 Reticle Pattern.

Figure 2-11.

Use of Ranging Symbols M2 and M85.

2-21

Figure 2-12. Use of M139 Stadia Lines for Ranging.

2-22

between the curved reticle lines. Read range in hundreds of meters from the scale on the right of the reticle pattern. (2) Aiming points for targets at ranges from 200 to 1600 meters are shown by small vertical lines in the center of the reticle. Ranges shown on the reticle correspond to the top of each vertical line. Ranges corresponding to the bottom of each vertical line are an additional 100 meters. (3) Length of a horizontal line represents 5 roils and spaces between lines represent 5 roils. c. Reticle Cell for M139 20-mm Cannon (fig. 2-13). (1) Refer to b(1) above for use of stadia lines for ranging. (2) Aiming points for targets at ranges from 400 to 1600 meters are shown by small vertical lines in the center of the reticle. Ranges printed on the reticle correspond to the top of each vertical line. Ranges corresponding to the bottom of each vertical line are an additional 200 meters. d. Reticle Cell for M60 Machinegun (fig. 2-14). (1) Refer to b(1) above for use of ranging symbol. (2) Aiming points for ranges from 400 to 1000 meters are shown by small dots in a vertical row down the center of the reticle. Aiming points for ranges out to 250 meters is through center of straight lines. 2-23

Figure 2-13.

2-24

M139 Reticle Pattern.

Figure 2-14.

M60 Reticle Pattern.

(3) Locate target, estimate range, and adjust machinegun to place corresponding aiming point on target. e. Reticle Cell for Forward Observer (fig. 2-15). (1) Each segment of the vertical and horizontal scales represents 10 roils. (2) Follow FO fire adjustment procedures. 2-25

Figure 2-15.

2-26

Forward Observer Reticle Pattern.

2-9. Operation Under Normal Conditions WARNING Use of the sight without the eyeguard installed may permit detection by the enemy and can result in physical injury to the operator because of weapon recoil. NOTE The daylight cover must be installed during daylight and removed at night. NOTE Batteries must be removed when the sight is not in use to prevent accidental turn-on of the sight. NOTE Follow all battery warnings and cautions on the inside front cover of this manual. a. Press your eye against the eyeguard to open the rubber leaves that prevent emission of stray light. 2-27

b. Turn the ON-OFF/TUBE BRIGHTNESS control (fig. 2-4) clock-wise to turn on the sight. c. Adjust the ON-OFF/TUBE BRIGHTNESS control to the lowest setting that will provide good target-to-background contrast. CAUTION Excessive reticle brightness may damage the image intensifier tube. d. Turn the ON-OFF/RETICLE BRIGHTNESS control clockwise to turn on the light emitting diode. Adjust the light intensity so that the reticle is just visible against the background. e. Turn the diopter focus ring until you get the clearest image of the reticle pattern. f. Turn the objective focus ring until the target in the field of view is sharply defined. g. Turn the RETICLE BRIGHTNESS/TUBE BRIGHTNESS controls to OFF when you are through using the sight. Remove both batteries.

2-10. Zeroing Procedures The sight may be zeroed during daylight or darkness. If zeroed during daylight, the daylight cover must be installed. Recommended distance for zeroing is 50 meters for machineguns and 20-mm cannon and 1000 meters for recoilless rifle. 2-28

CAUTION Prolonged use of sight under high light conditions without a daylight cover will damage image intensifier assembly. a. Procedures for Zeroing M2 and M85 Machineguns and M139 Cannon. (1) Select a stable firing position for the weapon. Place a target as shown in figure 2-16 at 50 meters. (2) Install bracket and sight on weapon. Place sight in operation and adjust azimuth and elevation controls so that the reticle aiming point is approximately in the center of the field of view. (3) Fire 1 and 2 rounds to settle the sight on the weapon. (4) Tighten the sight and mounting bracket fasteners firmly. (5) Place zeroing range aiming point of reticle on the target aiming point as shown in figure 2-16. Fire enough rounds to obtain a good shot group. Locate center of the shot group. (6) Adjust the reticle to move the center of the shot group a distance of 9.8cm (7 square on the target) directly below the target aiming point. Reticle adjustment actuators are marked to indicate direction of movement of round impact. For example, if the shot group is high and to the left of the desired impact point, move the 2-29

ELOKD013

Figure 2-16. M2 Boresight Target with AN/TVS-5.

elevation adjustment in the DN direction and the azimuth adjustment in the RT direction.

2-30

NOTE Each click of the azimuth or elevation adjustment actuator will move the strike of the round 0.5 inch (1.3 cm or ¼ mil) at 50 meters range. One click of the adjustment moves the reticle approximately one square on the target shown on figure 2-16 at 50 meters range. (7) Move the weapon so the reticle aiming point is again on the target aiming point. Repeat (5) and (6) above until the center of the slot is 9.8 cm below the target aiming point as shown in figure 2-16. b. Procedures for Zeroing M40 Recoilless Rifle. (1) Select a target at 1000 meters and bring the recoilless rifle daylight sight and night vision sight to bear on the same target. (2) Check accuracy of zeroing by firing the 50-caliber spotting gun at the target using night sight to direct fire. (3) Adjust the reticle as outlined in a(6) above until the right sight aiming point is aligned to the strike of the spotting round. c. Procedure for Zeroing M35 Machinegun and M139 Cannon.

2-31

(1) Zero the weapon to its daylight sight as prescribed in the applicable field manuals. (2) Install the bracket and night sight. (3) Select a target at 400 meters and bring the weapon’s daylight sight and the night sight’s 400 reticle aiming point to bear on the same target. (4) Check accuracy by firing the weapon at the target using the night sight to direct fire. Make adjustments to the night sight reticle until the 400 meter target can be hit using the night sight’s 400 meter reticle aiming point to direct fire.

Section II. OPERATION OF AUXILIARY EQUIPMENT 2-11. Low Temperature Adapter The low temperature adapter (fig. B-4) is used under conditions of extreme cold to keep the battery warm and to maintain its useful output. The adapter is installed on the sight as described in paragraph 3-8. Place the free end of the adapter containing the battery inside your clothing where it can absorb body heat.

2-12. Daylight Cover The daylight cover must be installed when using the sight in daylight. Instructions for installing the cover are contained in paragraph 3-9. By turning the 2-32

external knob in the center of the cover, you are placing filters in front of the objective lens which protects the sight from daylight. The degree of filtering is adjustable to provide the best view of the target scene and reticle. It will also be necessary to adjust tube brightness, reticle brightness, and objective focus to obtain the best sight picture. If the objective focus is not set correctly, three images or a blurred image will be seen.

2-12.1 Battery/Equipment Overheating WARNING DO NOT use water to extinguish LiSO2 battery fires if a Shock hazard exists due to high voltage electrical equipment in the immediate vicinity [i.e., greater than 30 volts, alternating current (at) or direct current (de)]. WARNING If the battery compartment becomes hot to the touch, if you hear a hissing sound (i.e., battery venting), or smell irritating sulfur dioxide gas, IMMEDIATELY Turn Off the equipment. Remove the equipment to a well ventilated area or leave the area. 2-32.1

WARNING DO NOT use a HaIon type fire extinguisher on a lithium battery fire. WARNING

In the event of a fire, near a lithium battery(ies), rapid cooling of the battery(ies) is important. Use a carbon dioxide (CO2) extinguisher. Control of the equipment fire, and cooling, may prevent the battery from venting and potentially exposing lithium metal. In the event that lithium metal becomes involved in fire, the use of a graphite based Class D fire extinguisher is recommended, such as Lith-X or M ET-L-X.

2-32.2

a. Allow the equipment to cool at least 1 hour. b. Remove and replace battery after the equipment has cooled to the touch. c. If there is a safety incident, or if you believe a safety hazard exists. notify your local Safety Office/ Officer, file a Product Quality Deficiency Report, SF Form 368, and notify the CECOM Safety Office, Ft. Monmouth, NJ at AUTOVON 995-3112, Commercial (201 ) 544-3112.

Section III. OPERATION UNDER UNUSUAL CONDITIONS 2-13. Extreme Weather Conditions a. Extreme Cold. Under conditions of extreme cold, use the low temperature adapter to keep the battery warm. The adapter is provided with a 5-foot extension cable to permit operation of any weapon sight. Lenses may fog over or frost up during cold rainy weather. Under those conditions, remove the eyeguard (para 3-10a), clean lens (para 3-12), coat lens with antifogging compound, shake off excess compound and allow to dry. When dry, replace eyeguard (para 3-10b). b. Dusty or Sandy Areas. Avoid operation of the sight under these conditions if possible. If

2-33

operation is necessary, observe the following precautions: (1) Avoid pointing the sight into the wind to prevent dust and sand from pitting or scratching objective lens. (2) Cover as much of the sight as possible to prevent damage to external surfaces. (3) Keep carrying case latched and carrying bag closed except to remove or replace equipment. (4) Clean eyepiece and objective lenses frequently with a lens brush and lens tissue. c. Rainy or Humid Conditions. (1) Use antifogging compound as instructed in a above. (2) Dry all parts thoroughly after exposure to rain or high humidity. (3) Keep carrying case latched and carrying bag closed except to remove or replace equipment. (4) Do not store sight in a wet or damp carrying bag. d. Salt Water Areas. Observe the following precautions: (1) After exposure to salt water, clean all components by dipping them in fresh water. (2) Dry all parts thoroughly after removing all traces of salt water. e. Operation in Extreme Heat. The sight can be operated at high temperature of 125° F (52°C). 2-34

2-14. Operation in High Altitudes Altitude has no effect on operation of the sight.

2-35/(2-36 blank)

CHAPTER 3 MAINTENANCE INSTRUCTIONS Section I. PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) 3-1. Purpose of PMCS PMCS is performed daily to be sure that the sight is ready for use at all times. Procedures are a systematic inspection of the sight that will enable you to discover defects that might cause the sight to fail on a mission.

3-2. Frequency of Performing PMCS The frequency of performing PMCS is as follows: a. Daily unless in protective storage (standby condition). b. When sight is installed on a weapon. c. When sight is reinstalled after removal for any reason. d. Weekly when in a standby condition.

3-3. Correcting and Reporting Deficiencies Deficiencies that cannot be corrected after following the instruction in table 3-1 shall be 3-1

reported to organizational maintenance for action.

3-4. Performance of PMCS Preventive maintenance checks and services shall be performed following the sequence and inspection procedures indicated in table 3-1. Table 3-1. Preventive Maintenance Checks and Services B-Before Operation D-During Operation A-After Operation Interval and Sequence No. B

1

2

3

4

3-2

D

A

Item to Be Inspected Procedure AN/TVS-5 Check for completeness, including accessories. Check for dirt and moisture on external surfaces and parts. Clean and dry with lint-free cloth. SHIPPING AND CARRYING CASE Check for dirt, moisture, and mildew. Clean and dry with lint-free cloth. CARRYING BAG Check for dirt, moisture, and mildew. Clean and dry with lint-free cloth. BATTERIES Remove batteries. Check for corrosion on terminals and dirt or moisture in battery cap or battery assembly adapter if installed. Clean battery cap or battery assembly adapter with dry cloth. Replace batteries if corroded.

Table 3-1. Preventive Maintenance Checks and Services B-Before Operation D-During Operation A-After Operation

Interval and Sequence No. B

D

5

6

7

8

9

A

Item to Be Inspected Procedure LOW TEMPERATURE ADAPTER (IF PRESENT) Check for cracks in cable and for corroded connectors. Report deficiencies to higher category maintenance. DAYLIGHT COVER Check for dirt or cracks in cover or broken lenses. Rotate holder to be sure that all apertures can be used. CONTROLS Check each knob, switch and control for smooth mechanical action. If control binds or sticks, report deficiency to higher category maintenance. ON-OFF/TUBE BRIGHTNESS Install batteries. Turn switch to ON position. Intensifier tube should glow green. Color intensity should change as switch is rotated. Report deficiencies to higher category maintenance. ON-OFF RETICLE BRIGHTNESS CONTROL

3-3

B-Before Operation

Table 3-1. - Con’t. D-During Operation A-After Operation

Interval and Sequence No. B

D

9 (Continued)

10

11

12

13

3-4

A

Item to Be Inspected Procedure . Turn switch to ON position. Rotate control and check for change in reticle intensity. If reticle cannot be seen, report deficiency to higher category of maintenance. DIOPTER FOCUS RING Check for smooth movement and adjust for sharp image of reticle. Report deficiencies to higher category maintenance. OBJECTIVE FOCUS RING Check for smooth movement and adjust for sharp image. Report deficiencies to higher category maintenance. RETICLE AZIMUTH ADJUSTMENT KNOB Rotate knob and check that reticle moves in azimuth. Return knob to original position. Report deficiency to higher category maintenance. RETICLE ELEVATION ADJUSTMENT KNOB Rotate knob and check that reticle moves in elevation. Return knob to original position. Report deficiency to higher category of maintenance.

B-Before Operation

Table 3-1. Con‘t. D-During Operation A-After Operation

Interval and Sequence No. B D A 14

Item to Be Inspected Procedure REMOVE BATTERIES Remove battery caps or adapter battery assembly upper housing and remove batteries after operation. Replace battery caps or battery assembly adapter upper housing if installed.

Section II. TROUBLESHOOTING 3-5. General Troubleshooting Information a. This section contains troubleshooting information for locating and correcting most of the operating troubles which may develop in the sight. Each malfunction for an individual component, unit, or system is followed by a list of tests or inspections that will help determine probable causes and corrective action to take. Perform the tests/ inspections and corrective actions in the order listed. b. T h i s m a n u a l c a n n o t l i s t a l l p o s s i b l e malfunctions that may occur, or all tests or inspections and corrective actions. If a malfunction 3-5

is not listed (except when malfunction and cause are obvious), or is not corrected by listed corrective actions, notify your supervisor.

3-6. Troubleshooting Procedures Troubleshooting procedures are listed in table 3-2.

Section III.

MAINTENANCE PROCEDURES

3-7. Scope of Operator Maintenance Operator maintenance consists of external inspection of components of the sight for serviceability, cleaning and installation of the low temperature adapter assembly and mounting bracket assemblies. Maintenance instructions covered elsewhere in this manual (for example, PMCS, troubleshooting) are not repeated in this section.

3-6

Table 3-2.

Troubleshooting

MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION IMAGE INTENSIFIER 1. WEAK OR NO ILLUMINATION OF IMAGE INTENSIFIER TUBE. Step 1. Check to see if ON-OFF TUBE BRIGHTNESS control is turned off or turned down. If control is turned off, turn it on. If control is turned down, adjust until tube is illuminated. Step 2. Check to see if batteries are weak. Replace batteries and recheck illumination of tube.

2. BLURRED IMAGE. Step 1. Check to see if eyepiece lens is out of focus. Adjust diopter focus ring until reticle pattern is sharply defined. Step 2. Check to see if objective lens is out of focus. Adjust objective focus ring until image is sharply defined.

3. NO VISIBLE RETICLE PATTERN OR lNTENSlTY IS TOO LOW. Step 1. Check to see if reticle intensity is turned down or off. If control is turned off, turn it on. If control is turned down, adjust until reticle is clearly visible. Step 2. Check to see if batteries are weak. Replace batteries and recheck reticle visiblity. 3-7

Table 3-2.

Troubleshooting - Cont.

MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 4. IMAGE INTENSIFIER TUBE ILLUMINATES BUT NO IMAGE OR RETICLE PATTERN. Tube failure. Report failure to higher category maintenance.

3-8. Installation of Low Temperature Adapter Assembly The low temperature adapter (fig. 3-1) should be installed when the operating temperature is below -20° F. It is installed as follows: a. Remove the two battery. caps and batteries from the sight. Place on battery in your pocket. b. Replace one battery cap and screw the adapter plug on the sight in place of the battery cap. c. Insert a battery into the second battery cap (terminal polarity as shown in fig. 3-1) and screw the cap and battery in the low temperature adapter housing.

3-8

Figure 3-1.

ELOKD014

Installation of Low Temperature Adapter Assembly. 3-9

3-9. Installation of Low Temperature Adapter Assembly (AA Battery Adapter) The low temperature adapter (fig. 3-2) should be installed when the temperature is below -20” F. It is installed as follows: a. Remove battery adapter from sight. b. Screw low temperature adapter plug on sight in place of adapter. c. Screw battery adapter into low temperature adapter housing. d. Install batteries as described in paragraph 2-3.2.

3-10. Installation of Daylight Cover The daylight cover is removed to clean the objective assembly. The cover (fig. 3-3) is simply pulled off or pressed on the objective end of the sight.

3-11.

Installation of Eyeguard

The eyeguard (fig. 3-3) is removed to clean the eyepiece lens. It is removed and installed as follows: a. To remove the eyeguard, grasp it firmly where it joins the eyepiece and unscrew counterclockwise until free of the eyepiece.

3-10

Figure 3-2.

ELOKD014A

Installation of Low Temperature Adapter Assembly. 3-11

Figure 3-3. 3-12

ELOKD015

installation of Eyeguard and Daylight Cover.

b. To install the eyeguard, position it on the threads of the eyepiece, grasp it firmly close to the eyepiece, a n d s c r e w c l o c k w i s e o n t h e eyepiece until fully seated.

3-12. Inspection of Mounting Bracket Assemblies When installed on the weapon, the sight and the mounting bracket must be held firmly in place when the weapon is fired. This requires that all parts of the bracket assembly are present and in good working order. If the sight or the mounting bracket is loose and cannot be tightened, report the deficiency to organizational maintenance.

3-13. Cleaning The operator is responsible for keeping the sight and accessories clean and serviceable. Consumable cleaning items are listed in appendix D. Also, clean, lint-free cloths are required. Cleaning procedures are outlined below. a. Lenses. Clean the objective lens, eyepiece lens, daylight cover lenses and right angle relay lenses as follows: (1) Remove loose dirt with a lens brush. (2) Clean the glass surfaces of lenses with lens tissue. You may saturate the lens tissue with 3-13

water (distilled, if available) to remove dirt that is caked on the surface. (3) Dry and polish lenses with a dry lens tissue. b. Mets/Surfaces. Clean all exposed metal surfaces with a lint-free cloth. If necessary, dampen the cloth with water. Allow surfaces to dry thoroughly before storing the sight. c. Eyeguard. Clean the rubber eyeguard with a wet cloth. d. Carrying Bag. Shake out loose dirt or foreign matter. Wipe the inside and outside of the bag with a damp cloth. e. Carrying and Storage Case. Shake out loose dirt or foreign matter. Clean the exterior of the case with a clean cloth (dampened with water, if necessary). Wipe the interior cushions with a clean cloth (do not dampen the cloth unless absolutely necessary). Allow the interior to dry thoroughly before storing the sight and closing the case.

3-14

APPENDIX A REFERENCES AR 55-38

Reporting of Transportation Discrepancies in Shipments

AR 735-11-2

Reporting of Item and Packaging Discrepancies

DA PAM 25-30

Consolidated Index of Army Publications and Blank Forms

DA PAM 738-750

The Army Maintenance Management System (TAM MS)

TM 11-5855-214-24&P

Organizational, Direct Support, and General Support Technical Maintenance Manual including Repair Parts and Special Tools List (including Depot Maintenance Repair Parts and Special Tools) for Night Vision Sight, A-1

Crew Served Weapons AN/TVS-5 TM 750-244-2

A-2

Procedures for Destruction of Electronics Materiel to Prevent Enemy Use (Electronics Command)

APPENDIX B COMPONENTS OF END ITEM LIST Section I. INTRODUCTION B-1. Scope This appendix lists integral components of and basic issue items for the AN/TVS-5 to help you inventory items required for safe and efficient operation.

B-2. General This Components of End Item List is divided into the following sections: a. Section II. Integral Components of the End Item. These items, when assembled, comprise the AN/TVS-5 and must accompany it whenever it is transferred or turned in. The illustrations will help you identify these items. b. Section III. Basic Issue Items (Not applicable). These are the minimum essential items required to place the AN/TVS-5 in operation, to operate it, and to perform emergency repairs. Although shipped separately packed they must accompany the AN/TVS-5 during operation and whenever it is transferred between accountable B-1

officers. The illustrations will assist you with hard-to-identify items. This manual is your authority to requisition replacement BII, based on TOE/MTOE authorization of the end item.

B-3. Explanation of Columns a. Illustration. This column is divided as follows: (1) Figure number. Indicates the figure number of the illustration on which the item is shown. (2) /tern number. The number used to identify item called out in the illustration. b. National/Stock Number. Indicates the National stock number assigned to the item and which will be used for requisitioning. c. Description. Indicates the Federal item name and, if required, a minimum description to identify the item. The part number indicates the primary number used by the manufacturer, which controls the design and characteristics of the item by means of its engineering drawings, specifications, standards, and inspection requirements to identify an item or range of items. Following the part number, the Federal Supply Code for Manufacturers (FSCM) is shown in parentheses. d. Location. The physical location of each item listed is given in this column. The lists are B-2

designed to inventory all items in one area of the major item before moving on to an adjacent area. e. Usable on Code. Not applicable. f. Quantity Required (Qty Reqd). This column ists the quantity of each item required for a compIete major item. g. Quantity. This column is left blank for use during an inventory. Under the Rcvd column, list he quantity you actually receive on your major tern. The Date columns are for your use when you inventory the major item.

B-3

5855-01-043-8431 5855-01-076-0890 5855-01-045-5496 5855-01-045-5487 5855-01-020-2211

COVER, DAYLIGHT SM-D-850080-1 (80063) CELL NIGHT ASSEMBLY VISION SIGHT SM-D-85-0490-10 SU-88/TVS-5 (80058) RETICLERETICLE CELL ASSEMBLY M2, M85 CASE, CARRYING AND STORAGE SM-D-850200-1 (80063)

SECTION II. INTEGRAL COMPONENTS OF END ITEM

B-4

SECTION II. INTEGRAL COMPONENTS OF END ITEM

B-5

41011–002 Figure B-1. B-6

Integral Components of End Item.

APPENDIX C ADDITIONAL AUTHORIZATION LIST

Section I.

INTRODUCTION

C-1. Scope This appendix lists additional items you are authorized for the support of the AN/TVS-5.

C-2. General This list identifies items that do not have to accompany the AN/TVS-5 and that do not have to be turned in with it. These items are all authorized to you by CTA, MTOE, TDA, or JTA.

C-3. Explanation of Listing National stock numbers, descriptions, and quantities are provided to help you identify and request the additional items you require to support this equipment. Figure Numbers are included to further assist you to identify the items.

C-1

SECTION II. ADDITIONAL AUTHORIZATION LIST

C-2

SECTION II. ADDITIONAL AUTHORIZATION LIST

C-3

41011-011

Figure C-1. C-4

Additional Authorization List.

APPENDIX D EXPENDABLE SUPPLIES AND MATERIALS LIST

Section I.

INTRODUCTION

D-1. Scope This appendix lists expendable supplies and materials you will need to operate and maintain the AN/TVS-5. These items are authorized to you by CTA 50-970, Expendable Items (Except Medical, Class V, Repair Parts, and Heraldic Items).

D-2. Explanation of Columns a. Column 1 - Item Number. This number is assigned to the entry in the listing and is referenced in the narrative instructions to identify the material (e.g., “Use cleaning compound, item 5, App. D“). b. Column 2- Level. This column identifies the lowest level of maintenance that requires the listed item.

D-1

C O F H

- Operator/Crew - Organizational Maintenance - Direct Support Maintenance - General Support Maintenance

c. Column 3- National Stock Number. This is the National stock number assigned to the item; use it to request or requisition the item. d. Column 4 - Description. Indicates the Federal item name and, if required, a description to identify the item. The last line for each item indicates the part number followed by the Federal Supply Code for Manufacturer (FSCM) in parentheses, if applicable. e. Column 5- Unit of Measure (UIM). Indicates the measure used in performing the actual maintenance function. This measure is expressed by a two-character alphabetical abbreviation (e.g., ea, in, pr). If the unit of measure differs from the unit of issue, requisition the lowest unit of issue that will satisfy your requirements.

D-2

ECTION II. EXPENDABLE SUPPLIES AND MATERIALS LIST

D-3/( D-4 blank)

By Order of the Secretary of the Army:

CARL A. VUONO General, United States Army Chief of Staff

Official:

WILLIAM J. MEEHAN II Brigadier General, United States Army The Adjutant General

DISTRIBUTION: To redistributed inaccordance with DA Form 12-36 operator requirements for AN/TVS-5.

*U.S. GOVERNMENT PRINTING OFFICE: 1991- 281-504/47489

THE METRIC SYSTEM AND EQUIVALENTS

PIN:

018202-000