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TM-750-116
TM-750-116
March 17, 2018 | Author: 1Y875 | Category:
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TMSUPERSEDES COPY 750-116 14 MAY 1984 DATED T E C H N I C A L M A N U A L GENERAL PROCEDURES FOR PURGING AND O F CHARGING FIRE CONTROL INSTRUMENTS DISTRIBUTION STATEMENT A: Approved for public release; distribution unlimited. HEADQUARTERS, DEPARTMENT MAY 1993 OF THE ARMY WARNING High pressure nitrogen gas is used during purging and charging of this equipment. Keep face and body clear of release valves. Failure to observe safety precautions may result in severe injury or death. When using compressed nitrogen gas in confined areas, use extreme care; gas could cause asphyxiation. Do not store compressed nitrogen gas tanks in upright position without securing in a rack or chaining to a wall or support. Do not drop tank of compressed gas. Handle instruments with radioluminous light source with care. To avoid possible radioactive contamination. do not purge or charge an instrument that has a damaged or inoperative radioluminous light source. Immediately wrap instrument in plastic and notify the local Radiation Protection Officer (RPO). Solvent vapors are toxic. Do not use solvent in a confined space. Avoid long periods of breathing solvent vapors and/or contact with skin. Compressed air presents a serious hazard. Its use for cleaning and drying purposes should be permitted only where all other methods have failed. When it is necessary to use compressed air for cleaning or drying, adequate controls must be provided to protect the user, adjacent operators, and other personnel in the area. The minimum amount of air pressure required to perform the specific operations must be used. All users of compressed air must wear eye protection. Compressed air will not be used for cleaning purposes except where reduced to less than 30 psig. a TM 750-116 C1 HEADQUARTERS Department of the Army Washington D.C., 24 November 1995 Change No. 1 GENERAL PROCEDURES FOR PURGING AND CHARGING OF FIRE CONTROL I N S T R U M E N T S TM 750-116, dated 5 May 1993 is changed as follows: 1. Remove old pages and insert new pages as indicated below. Insert Pages Remove Pages 2-1 thru 2-4 2-1 thru 2-4 2. New or changed material is indicated by a vertical bar in the margin of the page. Illustration changes are indicated by a pointing hand adjacent to the illustrations. 3. File this change sheet in front of the publication for reference purposes. Change 1 block 0899 requirements for TM 750-116.DISTRIBUTION: To be distributed in accordance with DA Form 12-34-E. . . . . . . . . . . . . . . . . .*TM 750-116 TECHNICAL MANUAL NO. . . . . . . . . . . . . . Munitions and Chemical Command. . . distribution unlimited. . . . . . . . . . . . . . . . .1-1 1-2 Maintenance Forms. . . . . . . . . . . . . . . . .S. . . . . . . . . . . 1-1 1-4 Reporting Equipment Improvement Recommendations (EIR) . direct to Commander. . . . . . . . . . . . . . . . . . . . . . . 1-1 1-3 Destruction of Army Materials to Prevent Enemy Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mail your letter. . . . . . . . . . . . . . . . . . . . . . . . General Information . . . . . . . . . . . . . . . DA Form 2028 (Recommended Changes to Publications and Blank Forms). . . . . . . . . . . . . DISTRIBUTION STATEMENT A: Approved for public release. . . . . . . TM 750-116 Washington.. . Records. . . . . Rock Island. . . . . . . . . . . . . . . . . . . . . . Army Armament. . . . . . . please let us know. . 1-1 *This manual supersedes TM 750-116 dated 14 May 1984. . . . . . . . . . . . . . . . . . . . . U.1-1 1-1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . located in the back of this manual.1-1 Section I. . . . . . . . . . . . . ATTN: AMSMC-MAS. i . If you find any mistakes or if you know of a way to improve the procedures. . . . . . . . . . . . . . . . . A reply will be furnished to you. . . . . . . . . . . . . . . . . .iv LIST OF TABLES . . . . . or DA Form 2028-2. . . . . . . . . . . . . . . . and Reports . . . . . . . . TABLE OF CONTENTS Page LIST OF ILLUSTRATIONS . . . . . . . . . . . . . . . . . . . . . . INTRODUCTION . . including all changes. . . . . . . . . . . . . . . . . . . . DC HEADQUARTERS DEPARTMENT OF ARMY 5 May 1993 GENERAL PROCEDURES FOR PURGING AND CHARGING OF FIRE CONTROL INSTRUMENTS This manual is current as of 1 January 1993 REPORTING ERRORS AND RECOMMENDING IMPROVEMENTS You can help improve this manual. IL 61299-6000. vi CHAPTER 1. . . . . . Tank . . . . . . . . . . . . .Continued Page Section II. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 2-4 Time Cycles . . .2-3 2-5 Purging and Charging Procedures . . . . . . . . M65 Battery Commander’s . . . . . . . . GENERAL PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M44A1E1. . . . . . . . . . . . . 2-3 CHAPTER 3. . . . . . . . . . . . 3-2 3-3 Binocular. . . . . . . . . . . . . . . . . . . . . . . . . . . . . and Handling . . . . . . . M1A1 . . . . .3-8 3-10 Periscopes. . . . . . . .3-5 M26/M27 M26A1/M27A1 3-8 Mounts. . . . . . . 3-1 Section I. . . . . . . . . . . . . . . . .2-1 2-2 Setup of Purging and Charging Equipment . . . . . Equipment Description and Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 3-2 Aiming Circle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Telescope . . . . . . . . . Boresight . . . .3-6 M137 M145/M145A1 M149/M149E1 M187 3-9 Periscope. . .3-1 Specific Instruments . . . . . . . . . . . . . . . . . . M44A3. . . . . . 3-1 3-1 Scope . . . . . . . . . . . . 3-2 3-4 Collimator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5 3-7 Devices. . . . . . . . . 1-1 1-6 Safety. . . . . . . . . . . . . . . . . . . . . . . .3-3 Ammo Select Unit Cant Angle Sensor Computer Unit Gunner’s Control Unit Output Unit Rate Tachometer 3-6 Device. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1-7 Corrosion Prevention and Control (CPC) . . . . . . . . . . . . . . . . . .2-1 2-1 Scope . . . . M21 Electronic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M139/M140 . . . . . . . . . . . . . . . PURGING AND CHARGING SPECIFIC INSTRUMENTS . . . . . . . . . . . . . . . M2A2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Care. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8 M28C M30C M32El and M32CE1 M35E1 M36 and M36E1 M42 M44A. . . Capabilities. . . . . . . . . . . .3-3 3-5 Computer. . . . . . . . . . . . . . . . . . . . . . Alinement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Information . . . . 1-2 CHAPTER 2. . . . . . . . . . . . . . . . . . . . . . . and Features . . . .TM 750-116 TABLE OF CONTENTS . . . . . . . . . . . . . . . . . . . . M44A2. . . . . . . . . . . . . . . . 2-1 2-3 Bleed Down of Purging and Charging Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M44A2E1 M47 M48 M901 M981 Section II. . . . . . . . M44A4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii . . . . . . . . . 1-1 1-5 Equipment Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Continued Page 3-11 Quadrants . . . . . . . and M17C 3-13 Sights . . . . . . . . . Elbow . . . . Panoramic . . M17B1C. . . . . . . . . . . . . . . . . . . . . . . . . PN 12279200 3-14 Telescopes. . . . . . . . . .3-21 BFV TOW/TOW2 Subsystem Backup Sight PN 12316793 Integrated Sight Unit Commander’s Relay Assembly 8635466 Infinity Sight M44C Infinity M61 Computing Commander’s Extension. . . . . . . PN 12278900 Gunner’s Primary Sight. . . . . . . .. . .3-27 M105D and M105F M127 and M127A1 3-15 Telescopes. . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . Image Gunner’s Auxilliary Sight. . . . . . . . . . . . . . . . . . . . . . . . . .3-28 M114 and M114A1 M16A1D and M116 Series M118 Series M138 M139 3-16 Telescopes. . . . . . . . . . . . . . . . . PN12285300 Control Unit. . . . . . . PN 12549761-2. . . . . . . . . . . . . . . . . . . . . . PN 12549761-3. . . .*TM 750-116 TABLE OF CONTENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-18 Laser AN/VVG-2 M17A1. . . . . . . . . . . . . . . PN 9377279-2 Tank Thermal Commander’s Display Gunner’s Display Head Assembly Power Converter Weapon.3-29 M12A7Q and M12A7S M113 and M113A1 M115 M117 and M117A1 M137 and M137A1 M901A1 M981 FISTV iii . PN 12282140. . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-17 M14 and M14A1 M15 M17 M18 3-12 Rangefinders . . . . . . . . . . . . . . . Articulated. . . . . . . . . . . . . . . . . . . . . . . . M32E1 Passive Elbow Assembly . . . . . M36 Infrared Body Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-34 3-20 Unit.3-13 3-29 . . . M137 Telescope Mount . . . . . .3-6 3-15 . . . . . . . . . . . . . . . . . . .3-5 3-10 .3-6 3-14 . .2-2 3-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-13 iv . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M19 Binocular . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M2A2 Aiming Circle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3 3-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1 APPENDIX C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2 3-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Straight . . . . . . . . . . . .Ml39/Ml40 Alinement Device . . . . . . . . . . . . .3-12 3-26 . . . . . . . . . . . . .2-1 2-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TM 750-116 TABLE OF CONTENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ammo Select Unit . . . . . . . . . . . . . . . . . . . M55 Laser . . . . . . . . . . . . . . . . . . . . . . . . . . . . M42 Tank Periscope . . . C-1 INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-32 M90A2 M134 3-18 Test Set. . . . . . . . . . . . . . . . . . . .Modified Production . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0utput Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rate Tachometer . . . M42 Tank Periscope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2 3-3 . . . . . . . . . . . . . . . . . . . . . . . . .3-11 3-25 . . . . . . . . . . . M187 Telescope Mount . . . . . . . . . . . . . . . . 3-33 3-19 Trainer. . . . . . . . . . . . M149/M149E1 Telescope Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INDEX 1 LIST OF ILLUSTRATIONS 2-1 . . M28C Tank Periscope . . . . . . . . . . M32E1 Head Assembly . . . . . . . . . . . . . . Setup for Two-Stage Fixture . . . . . . . . . . M36 Passive Elbow Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4 3-6 . . . . . . . . . . .3-10 3-22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3 3-4 . . . . . . . . . . . . . . . . . . . . . . .3-12 3-27 . . . . . . . . . . . . . . Setup for Single Stage Fixture . . . . . . . . . . . . . . . . M36 Head Assembly. . . . . . . . . . . . . ADDITIONAL SUPPLIES . . . . . . . . . . . . . . . . . . . . . . .M26/M27 Boresight Device . . . . . . . . . . . . . . . . . . . A-1 APPENDIX B. . . . . . . . . . . . . . . . . . . . . . . . . . .3-12 3-28 . . . . . . . . . . . . . . . . .3-4 3-8 . . . . . . . . .3-11 3-24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8 3-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M42 Tank Periscope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8 3-17 . . . . . . . . . . . . . . . . . . . . . . .3-7 3-16 . . . . . . . . . . . . . . . . M1A1 Collimator . . M30C Tank Periscope . . . . . .3-6 3-13 . . . . . . . . .3-5 3-12 . .3-34 APPENDIX A. . . . . . . . . . . . . . . . .Late Production . Gunner’s Control Unit . . . . . . . . . . . . . . . M36 Daylight Body Assembly. Computer Unit. . . . . . .3-9 3-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . REFERENCES . . . . . . . . . . . . . . . . . . . . . . . .Continued Page 3-17 Telescopes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M26A1/M27A1 Muzzle Boresight . . . . . . . . . . . . . . . . . . . . . . . . M145/M145A1 Telescope Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . M65 Battery Commander’s Periscope . . . . . . .3-7 3-18 . . . . . . . . . . . . . . . . . . . . . . . .3-4 3-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4 3-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5 3-11 . . . . . . . . . . . . . . . EXPENDABLE SUPPLIES AND MATERIALS LIST . M32E1 Daylight Body Assembly . . . . . . . . . . . . . . . . . . . . . .. . . . . Receiver/Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-10 3-23 . . . . . . . . . . . . . .3-8 3-20 . . . . . . . . . . . . . . . . . . . . . . . . Reticle Projector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cant Angle Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-30 3-73 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M15 Quadrant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M44A Head Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Laser Rangefinder Electronics Cavity . . . . . . . . M113 and M113A1 Panoramic Telescope .3-28 3-68 . .3-23 3-52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-26 3-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M61 Computing Sight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. M55 Deflector Optical Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-25 3-58 . . . . . . . . Reticle . . . . . . . M47 Tank Periscope Assembly . . . . . . . . . . . . . Receiver/Transmitter Test Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M134 Straight Telescope . . . . . . .3-24 3-54 . . . . . . .3-29 3-71 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-29 3-72 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Head Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . .3-15 3-35 . . M115 Panoramic Telescope . . . . . . . M55 Barrel Assembly . . . . . . . . . . . . . . . . . . . . .3-19 3-44 . . . . . . . . M90A2 Straight Telescope . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28 3-69 . . . . . . . . . .3-21 3-49 . . . . . . . . . . . . . . . . . . . . M118A2/M118A3 Elbow Telescope . . . . . . . . . . . . . . . . . . . . . . . . . .3-33 3-79 . . . . . . . . . . . . . . . . . . . . . . . . . . . PN 12549761-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-26 3-61 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M44A Series Tank Periscope . . . . . . AN/VVG-2 Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M17 and M18 Quadrants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Integrated Sight Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-28 3-70 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M901/M981 Tank Periscope. .3-24 3-56 . . . . . . . . . . . . . . . . . . . . .3-22 3-51 . . . . . . . . . . . . M12A7Q Panoramic Telescope. . . . . . . . . . . . . . . . . . . . . . . . . . PN 12549761-2. . . . .3-32 3-77 . . . . . . . . .3-17 3-37 . . . . . . . . . . . . . . . . . . . . . . . . . . . . PN 12316793 . . . . . . . . PN 9377279-2 3-25 3-59 . . . . . . . . . . . . . . . . . . . . . . . . .Old Configuration . . . . . . . . . . . . . . . M17A1 and M17C End Assembly. . . . . . . .3-14 3-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M14 and M14A1 Quadrants . . . . . . . . . . . . . . .3-27 3-66 . . . M15 Quadrant . . . . . .3-25 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-34 v . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M48 Periscope Body Assembly. . . . . . . . . . . . .3-26 3-62 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-19 3-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . M137 Panoramic Telescope . . . . . . . . . . . . . . . . . . . Gunner’s Auxiliary Sight PN 12278900 . . . . . . . . . . . . . . . . . . . . . . Gunner’s Display . . . . . . . . . . . . . . . . . . . . . . . . . . .3-17 3-39 . . . . . . . . . . . . . . . . . Lamp Assembly . . . . . . . . . . . . .5 7 . . . . . . . . . . . . . . . . . .*TM 750-116 LIST OF ILLUSTRATIONS – Continued 3-30 . . . . . . . . . . . . . . . . . . .3-33 3-80 . . . . . . . . . . .3-19 3-42 . . . . . . . . . . . . . . . . . . . .. . . . M139 Elbow Telescope . . . . . . . . . . . . Gunner’s Primary Sight PN 12282140. . . . . . . . . . M44A Body Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M117/M117A2 Panoramic Telescope . . . . . . M17A1 Body Assembly . . . . . . . . . . . . . . . . . AN/VVG-2 Electronics Cavity. . . .3-17 3-38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-21 3-48 . . . . . . . . . . . . . .3-20 3-46 . . . . . . . . . . . . . . . . . . . . . . .3-23 3-53 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-27 3-65 . . . . . . .Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-21 3-47 . . . . . . . . . . . . . . M114 Elbow Telescope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-18 3-41 . . . . . . M17B1C End Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . .3-34 3-81 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Image Control Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Backup Sight. . . . . . . Commander’s Relay Assembly . .3-13 3-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M137A1 Panoramic Telescope . . . . . . . .3-20 3-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8635466 Infinity Sight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-26 3-63 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Projector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unit. . . . . . .3-34 3-82 . . . . Weapon Sight PN 12279200 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Converter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-15 3-34 . . .3-31 3-75 . . . . . M105D Series Telescope .3-24 3-55 . . . . .3-14 3-33 . . . . . . . . . . . . . . . . . . . . . . . . . .3-30 3-74 . . . . . . .3-16 3-36 . . . . . Commander’s Extension PN 12285300 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Commander’s Display . . . . . . . . . . . . . . . . . . . Laser Rangefinder Optical Cavity. . . . . . . . . . . . . . . M901A1 Panoramic Telescope. . . . . . .New Configuration . . . . . . . . . . . . . . . . . . . . . . . Night Sight Cover Actuator Handle/Support . . . . . . . . . . . . .3-28 3-67 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-27 3-64. . . . . . . . . . . . . .3-31 3-76 . . . . . . . . . . . . . . . . . . M44C Infinity Sight .3-33 3-78 . . . . . . . M138 Elbow Telescope . . . . . . . . . . .3-18 3-40 . . . . . . . . . . . . . . . . . . . . .3-22 3-50 . . . . . . . . . . . . . . . . M127 Articulated Telescope . . . . . Integrated Sight Unit . . . . . . . Leak Test. . . . . . . . . . . . . . . . . . . . . . . . .3-22 3-2 . . . . . . . . . . . . . . . . Leak Test. . . . . . . . . . . . . . . . . Commander’s Relay Assembly . .TM 750-116 LIST OF TABLES 3-1 . . . . . . . . . . . . . . . . . . . . . .3-23 vi . . . . . . . . . . . Put it on an SF 368 (Quality Deficiency Report). DESTRUCTION OF ARMY MATERlALS TO PREVENT ENEMY USE. Army Armament. U. Port Identification. Department of the Army forms and procedures used for equipment maintenance will be those prescribed by DA PAM 738-750. 1-1 . We will send you a reply. Death or severe injury may result if personnel fail to observe safety precautions. b. Purging and charging ports of new production and overhauled fire control instruments are color coded. a. RECORDS. The following safety precautions are listed for the protection of personnel performing the procedures contained in this manual. SCOPE. ATTN: AMSMC-QAD. this publication does not attempt to take precedence over that publication. are the only one who can tell us what you do not like about your equipment.S. If specific instructions are provided in a technical publication pertaining to a specific fire control item. 1-3. Mail it to us at Commander. You. The color code system provides for painting of a gray band around the inlet port and a yellow band around the outlet port. Let us know what you do not like about the design or performance. Illustrations for fire control instruments that are purged and charged in this manual are included to show the location of inlet and outlet ports as well as associated hardware. Rock Island. This manual provides general instructions for purging and charging fire control instruments with dry nitrogen. b.TM 750-116 CHAPTER 1 INTRODUCTION SECTION I GENERAL INFORMATION 1-1. personnel should familiarize themselves with first aid information contained in FM21-11. MAINTENANCE FORMS. IL 61299-6000. EQUIPMENT CHARACTERISTICS. Prior to performing the work requirements. First Aid. SAFETY. Send us an EIR. let us know. If the equipment used in these procedures needs improvement. 1-6. 1-2. a. AND REPORTS. Port Location. Compressed nitrogen gas is used for purging and charging. 1-4. the user. The Army Maintenance Management System. Compressed Gas. CAPABILITIES. Serious injury may occur at any time during the performance of these procedures. AND HANDLING. REPORTING EQUIPMENT IMPROVEMENT RECOMMENDATIONS (EIR). CARE. Refer to TM 750-244-3 and TM 750-244-1-4 for procedures concerning the destruction of this material. Munitions and Chemical Command. SECTION II EQUIPMENT DESCRIPTION AND DATA 1-5. AND FEATURES. E-Mail
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Not Open. General Maintenance Procedures for Fire Control Materiel. drinking. such as workbench or table. OR SUDDENLY LOSES ILLUMINATION. If not illuminated. Double wrap the entire instrument in plastic (item 1. If skin contact is made with any area contaminated with tritium. softening. Optimum bioassay sample is at least four hours after exposure. mortars. (b) Personnel who may have handled the broken tritium instrument should report to health clinic for tritium bioassay. storage. storage and training are located in TM 9-254. CONTACT THE BASE SAFETY OFFICE FOR THE NAME AND TELEPHONE NUMBER OF YOUR LOCAL RPO: LOCAL RPO: TELEPHONE: (1) Safety Procedures for Nuclear Regulatory Commission (NRC) Licensed Tritium Fire Control Devices. the AMCCOM RPO may be contacted through the staff duty office at DSN 793-6001. The area must be cordoned off. Tritium can be taken into the body by inhalation. CRACKED. (b) If assistance is needed. No eating. If a tritium source breaks. swelling." Dispose of used gloves as radioactive waste per instructions from local RPO and wash hands well. IL 61299-6000. it can also include deterioration of other materials such as rubber and plastic. ATTN: AMSMC-QAD/Customer Feedback Center. 1-7. DO NOT ATTEMPT TO REPAIR. (c) The licensee/AMCCOM RPO may be contacted by writing to Commander. Unusual cracking. 1-2 . Corrosion Prevention and Control (CPC) of Army materiel is a continuing concern.” “deterioration.TM 750-116 (3) Emergency Procedures. appx B) and notify the local RPO. Army Armament. (2) Safety Precautions. packaged and evacuated to depot. (c) Radiological Hazard: The beta radiation emitted by tritium presents no external radiation hazard. IL 61299-6000. shipping. tanks. (a) Requirements for safe handling. maintenance. (a) Personnel handling the instrument should wear rubber or latex gloves. IMMEDIATELY DOUBLE WRAP INSTRUMENT IN PLASTIC AND NOTIFY THE LOCAL RADIATION PROTECTION OFFICER (RPO). (4) Further Information. Rock Island. Commercial (309) 782-2965/2995. smoking or applying cosmetics will be allowed in tritium device work areas. or percutaneous (skin) absorption/ injection. HANDLE WITH CARE. (b) Scope: This procedure is applicable to all personnel working with tritium devices.” “rust. U. Munitions and Chemical Command (AMCCOM). ATTN: AMSMC-SFS. Outside package must be identified as "Broken Tritium Device . Report the incident to the local RPO.ARMY. or disposal of radioactive instruments. restricted until wipe tests indicate no contamination. It is important that any corrosion problems with these items be reported so that the problem can be corrected and improvements can be made to prevent the problem in future items. After work hours. IN THE EVENT THE RADIOLUMINOUS SOURCE IS BROKEN. (c) Broken tritium sources indoors may result in tritium contamination in the area. Fax extension 2289. do not repair. and rifles. Product Quality Deficiency Report. While corrosion is typically associated with rusting of metals. general support maintenance and operator levels. (a) Check for illumination in low light or darkroom prior to use or service. Actions below will be taken under supervision or direction of the local RPO. inform other personnel to vacate the area or move upwind. If a capsule is broken. wash immediately with nonabrasive soap and water. Use of key words such as “corrosion. including organizational.S. ingestion. If a corrosion problem is identified.S. (a) Purpose: To implement mandatory license requirements for use and maintenance of tritium radioluminous fire control instruments used on howitzers. or telephone: DSN 793-2965/2995. U.MIL. sealed. Commercial (309) 782-6001. (b) Removal of the radioluminous source from the instrument is prohibited except at authorized depots. appx B).” or “cracking” will assure that the information is identified as a CPC problem. However. Munitions and Chemical Command. it can damge soft tissue. it can be reported using Standard Form 368. CORROSION PREVENTION AND CONTROL (CPC). Instrument must be immediately double wrapped in plastic (item 1. The form should be submitted to: Commander. Rock Island. Army Armament. the tritium gas will dissipate into the surrounding air and surfaces near the vicinity of the break may become contaminated. contact your local or major command (MACOM) safety office(s) for information on safe handling. or breaking of these materials may be a corrosion problem. maintenance. if taken internally. direct support. SETUP OF PURGING AND CHARGING EQUIPMENT. Change 1 2-1 . Setup for Single Stage Fixture(fig. Open tank valve momentarily to rid valve seat of any foreign material. (7) For bleed down procedures. NOTE When using regulator 11729749. obtain and use replacement tank. This chapter describes genera! procedures for the setup of purging and charging equipment time cycles. GAS COULD CAUSE ASPHYXIATION. Install valve relief into tee in the 3 o’clock position. WHEN USING IN CONFINED AREAS. (5) Open the nitrogen tank valve (CCW) slowly until the maximum tank pressure is registered on the high pressure gage. 2-2. USE EXTREME CARE. adapter 10917072-2 is required to connect hose assembly to low pressure to low pressure port of regulator.1) Remove the adapter from the regulator install tee into the regulator. a. install the adapter into tee in the 6 o’clock position. (figs. (3) Securely attach hose assembly to the adapter. (2) Securely attach regulator to tank valve using appropriate adapter supplied with purging kit if necessary. refer to para 2-3a. 2-1 and 2-2). close pressure regulator valve (CCW). (4) Close pressure regulator valve counterclockwise (CCW) to the extreme closed position.TM 750-116 CHAPTER 2 GENERAL PROCEDURES 2-1. Figure 2-1. (1) Obtain a tank of water pumped dry nitrogen and remove threaded protective cover from the outlet of the tank. (6) SIowly open pressure regulator valve clockwise (CCW) until approximately 5 psi is registered on the low pressure gage. SCOPE. Check for and eliminate any interference. (1. 2-1) DO NOT DROP TANK OF COMPRESSED NITROGEN GAS. NOTE If pressure indicated is less than 100 psi. (1) Close pressure regulator valve and test fixture valve(s) counterclockwise (CCW). OR HOSE BEFORE FIRST PERFORMING ENTIRE BLEED DOWN PROCEDURE. (3) Connect hose assembly to regulator assembly. (9) Remove stopper(s) from outlet pipe(s). b. 2-1 and 2-2). Open manifold valve. (3) Open transfer valve by pulling it to the outermost position. (11) For bleed down procedures. 2–2). (1) Close pressure regulator valve counterclockwise (CCW). INJURY COULD RESULT FROM SUDDEN RELEASE OF HIGH PRESSURE GAS. 2-2 . slowly rotate test fixture valve(s) CW until low pressure gage. (4) Open transfer valve by pulling it to the outermost position.TM 750–116 b. Pressure regulator valve should be left in the closed position when not in use. Leaving valve in the open position could damage regulator diaphragm. ADAPTER. (4) Close pressure regulator valve (CCW). (2) Close tank valve clockwise (CW). (2) Close tank valve clockwise (CW). (5) With manifold valve(s) open. NOTE If pressure indicated is less than 100 psi. BLEED DOWN OF PURGING AND CHARGING EQUIPMENT (fig. Pressure greater than 15 psi could damage the unit. Bleed Down for Single Stage Fixture (fig.b. obtain and use a replacement tank. 2–1). 2-3. Make certain pressure regulator valve is turned counterclockwise (CCW) to off. (10) Close manifold valve(s) and attach feeder tube(s) to outlet pipe(s). Figure 2–2 Setup for Two–Stage Fixture. (8) Close manifold valve(s) and check pressure reading on test fixture gage(s) . DO NOT REMOVE REGULATOR ASSEMBLY. At no time should the pressure be permitted to exceed 15 psi. a. refer to para 2-3. PN 8565556 (1) Place a tank of dry nitrogen in a vertical position in the back of the fixture so that the tank is lodged in the structural steel “V” formation of the fixture and secure with the strap and clamping screw arrangement provided. high pressure gage and test fixture gage(s) indicate zero. (3) Slowly open pressure regulator valve (CW) until low pressure gage and high pressure gage both indicate zero. Bleed Down for Two Stage Fixture (fig. (6) Close pressure regulator valve and test fixture valve(s) CCW. (5) Close test fixture valve(s) and ensure low pressure gage indicates 0 psi. (2) Secure regulator assembly to the tank. Open nitrogen tank valve (CCW) until maximum tank pressure is registered on the high pressure gage. Adjust fixture valve(s) if necessary. 2-2). Setup for Two Stage Fixture (fig. (6) Open pressure regulator valve clockwise (CW) until low pressure gage indicates 15 psi. (7) Open test fixture valve(s) until test fixture gage(s) indicate(s) proper pressure. Open manifold valve(s) and check the pressure on test fixture gage(s). (4) Rotate pressure regulator valve CW until low pressure gage indicates 15 psi. Leaving valves open could result in damage to unit diaphragms. a. NOTE The 180-day cycle does not apply to rangefinders which are purged and charged once a year. (b) If relief valve does not open before pressure reaches maximum range. d. a visual inspection is required every 90 days for evidence of moisture. (a) Relief valve should open between specified pressures. maximum pressure is 10 psi. Maintenance personnel will purge and charge tank fire control items every 180 days and artillery fire control items every 90 days or when condensation is evident in the instrument. (2) Inspect inlet port for cleanliness and presence of valve core. DO NOT ATTEMPT TO REPAIR. NSN’s 4820-01-384-9005 and 4730-00-277-9615 are mandatory for purging artillery fire control. Replace pressure relief valve on instrument. OR SUDDENLY LOSES ILLUMINATION. Remove any dirt or foreign matter. when unit is opened for maintenance. AN/VVG–2. IMMEDIATELY WRAP DEVICE IN PLASTIC AND NOTIFY THE LOCAL RADIATION PROTECTION OFFICER (RPO). However. Change 1 2-3 . (5) Open regulator valve (clockwise .CCW) or damage may occur to regulator. or when evidence of moisture is present. (3) Connect hose assembly to inlet pert on instrument. PURGING AND CHARGING PROCEDURES. The electrical components of M21 Ballistic Computer System to include the Ammo Select Unit. TIME CYCLES. (6) Watch low pressure gage and listen for purge relief valve to open. (1) Remove inlet port cap of instrument to be purged and charged. Pressure regulator valve and test fixture valve(s) should be left in the closed position when not in use. For maintenance of material in storage refer to applicable equipment manuals. HANDLE WITH CARE. Computer Unit. (4) Open main valve on nitrogen tank (CCW). immediately turn off regulator valve (CCW). a. IN THE EVENT THE RADIOLUMINOUS SOURCE IS BROKEN. Maintenance personnel will purge and charge fire control materiel being repaired whenever the repair function affects internal sealing. do not exceed maximum pressure. c. This procedure is used when instrument is designed to hold a charge. Ensure regulator valve is closed (counterclockwise . Output Unit and Rate Tachometer and the Laser Rangefinder. b. To avoid damage to instruments being purged and charged. Cant Angle Sensor. CRACKED. Purge and Charge: Inlet Port Entry. Electronics Unit require purging every 180 days.TM 750-116 2-5. Unless otherwise noted for specific instrument.CW) until specified purge pressure is indicated on low pressure gage. 2-4. Repeat procedure. Relief Valve Exit. (14) Install inlet port cap on instrument.Inlet Port Entry. refer to para 2-3. (b) If pressure relief valve does not close before reaching the lowest pressure indicated. Unless otherwise noted for specific instrument. (9) Reduce pressure to 1 psi. (3) Connect hose assembly to valve stem on instrument. (a) Watch low pressure gage for indication of nitrogen leaks. IMMEDIATELY WRAP DEVICE IN PLASTIC AND NOTIFY THE LOCAL RADIATION PROTECTION OFFICER (RPO). Apply soap solution to the valve core. Do not allow pressure to exceed maximum specified pressure. — When pressure relief valve opens. (8) Purge instrument for specified time. OR SUDDENLY LOSES ILLUMINATION. If moisture is still present. — Open regulator valve (CW) until specified pressure registers on low pressure gage. (a) Relief valve should close at specified pressure. close regulator valve (CCW). If a Ieak is found. replace the pressure relief valve and repeat procedure. Repeat procedure until all leaks are eliminated. (4) Open main valve on nitrogen tank (CCW). (11) If no leaks are found on instrument. perform leak check: — Apply a soap solution to all sealed joints and screws. CRACKED.TM 750–116 (7) Purge instrument for specified time. (6) Open regulator valve clockwise (CW) until specified purge pressure is indicated on low pressure gage. repeat purge and charge procedure. (5) Remove outlet port screw(s) (unless otherwise directed for specific instrument) and any accompanying gasket/preformed packing. replace valve core of instrument and repeat purge and charge procedure. IN THE EVENT THE RADIOLUMINOUS SOURCE IS BROKEN. If moisture is still present. HANDLE WITH CARE. 2-4 . (10) Leak test by allowing instrument to stand for specified time. (b) If pressure reduces. a longer purge time may be required. b. Ensure regulator valve is closed (counterclockwise . (8) Close the regulator valve (CCW).(CCW) or damage may occur to regulator. To avoid damage to instruments being purged and charged. — Refer to appropriate maintenance manuals to replace defective seals.) If no leak is indicated. maximum pressure is 10 psi. (15) For bleed down procedures. (Low pressure gage will indicate decreasing pressure. a longer purge time may be required. go to step 11. (1) Remove inlet port cap of instrument to be purged and charged. (12) Remove hose assembly. Remove any dirt or foreign matter. — When defective seals are replaced. perform leak test on purge kit and hose connection while still connected to instrument. DO NOT ATTEMPT TO REPAIR. (9) Watch low pressure gage and listen for purge relief valve to close. (13) Close main tank valve (CW). do not exceed maximum pressure. Outlet Port Screw(s) This procedure is used when instrument is designed to hold a charge. Purge and Charge . (2) Inspect valve stem for cleanliness and presence of valve core. — Watch for bubbles to appear around seals and screws. (7) Watch low pressure gage and listen for gas escaping from outlet port. Unless otherwise noted for specific instrument. (13) Close regulator valve (CCW). (3) Connect hose assembly to inlet port valve stem on instrument.When defective seals are replaced. HANDLE WITH CARE. Repeat procedure until all leaks are eliminated.CCW) or damage may occur to regulator. If moisture is still present. (17) Close main tank valve (CW). (1) Remove inlet port cap from instrument to be purged. (16) Remove hose assembly. replace valve core of instrument and repeat purge and charge procedure. (15) If no leaks are found on the instrument.Open regulator valve (CW) to increase internal pressure to instrument’s charge pressure. (a) Watch low pressure gage for indication of nitrogen leaks (low pressure gage will indicate decreasing pressure). perform a leak test on the purge kit and hose connection while still connected to the equipment. IN THE EVENT THE RADIOLUMINOUS SOURCE IS BROKEN. (19) For bleed down procedures. Replace self-sealing screw if necessary. (18) Install inlet port cap on instrument.CW) until specified purge pressure is indicated on low pressure gage. (7) Watch low pressure gage and listen for gas escaping from outlet port. Purge Only. do not exceed maximum pressure. (8) Purge instrument for specified time. 2-5 . . . If a leak is found. (14) Leak test by allowing instrument to stand for specified time. appx B. Apply soap solution to valve core. To avoid damage to instruments being purged. maximum pressure is 10 psi. Remove any dirt or foreign matter. sealing compound. (11) Install outlet port screw(s) and any accompanying gasket/preformed packing. . Outlet Port Screw.TM 750-116 (10) Check outlet port screw to ensure seal on screw is serviceable. If no leaks occur. IMMEDIATELY DOUBLE WRAP INSTRUMENT IN PLASTIC AND NOTIFY THE LOCAL RADIATION PROTECTION OFFICER (RPO). (6) Open regulator valve (clockwise . Do not allow pressure to exceed maximum specified pressure. (2) Inspect inlet port for cleanliness and presence of valve core.Apply a soap solution to all sealed joints and screws. repeat purge and charge procedure. If other than self-sealing screw is used. CRACKED. (item 6. (4) Open main valve on nitrogen tank (CCW).Refer to appropriate maintenance manuals to replace defective seals. . . refer to para 2-3. Inlet Port Entry. DO NOT ATTEMPT TO REPAIR. This procedure is used when instrument does not hold a charge.Watch for bubbles to appear around seals and screws. (b) If pressure reduces. c. proceed to step 15. Ensure regulator valve is closed (counterclockwise . (5) Remove outlet port screw (unless otherwise directed for specific instrument) with any accompanying gasket/preformed packing. perform leak check: . (9) Close the regulator valve (CCW).Close regulator valve (CCW). (12) Increase pressure to specified charge pressure for specified time. a longer purge time may be required. OR SUDDENLY LOSES ILLUMINATION. unless otherwise specified) must be applied to screw before installing. a longer purge time may be required. (7) Open regulator valve (clockwise . OR SUDDENLY LOSES ILLUMINATION. Remove any dirt or foreign matter. Replace self-sealing screw if necessary. DO NOT ATTEMPT TO REPAIR. (2) Inspect inlet port for cleanliness. CRACKED. Ensure regulator valve is closed (counterclockwise .TM 750-116 (10) Check outlet port screw to ensure seal on screw is serviceable. (11) Install outlet port screw with any accompanying gasket/preformed packing. (11) Check inlet and outlet port screws to ensure seals on screws are serviceable. Replace self-sealing screws if necessary. (6) Remove outlet screw(s) (unless otherwise directed for specific instrument) and any accompanying gasket/preformed packing. d. If moisture is still present. (If other than self-sealing screws are used. This procedure is used when instrument does not hold a charge. (14) For bleed down procedures. (3) Install specified purge adapter in inlet port. (4) Connect hose assembly to purge adapter on the instrument. unless otherwise specified) must be applied to screw before installing. If other than self-sealing screw is used. To avoid damage to instruments being purged. refer to para 2-3. Unless otherwise noted for specific instrument. (8) Watch low pressure gage and listen for gas escaping from outlet port(s). sealing compound (item 6. IMMEDIATELY DOUBLE WRAP INSTRUMENT IN PLASTIC AND NOTIFY THE LOCAL RADIATION PROTECTION OFFICER (RPO). (14) Install inlet screw.Inlet Port Screw. (13) Remove hose assembly and adapter. (9) Purge instrument for specified time. sealing compound (item 6. (12) Remove hose assembly. Purge Only . unless otherwise specified) must be applied to screw before installing. (1) Remove inlet port screw from instrument to be purged.CCW) or damage may occur to regulator. (10) Close the regulator valve (CCW). (13) Install inlet port cap. refer to para 2-3. (15) For bleed down procedures. (12) Install outlet screw(s) and any accompanying gasket/preformed packing (if required). (5) Open main valve on nitrogen tank (CCW). appx B. maximum pressure is 10 psi. IN THE EVENT THE RADIOLUMINOUS SOURCE IS BROKEN. HANDLE WITH CARE. Outlet Port Screw(s). do not exceed maximum pressure. appx B.CW) until specified purge pressure is indicated on low pressure gage. 2-6 . (Do not allow pressure to exceed maximum specified pressure. leak checking pressures. OR SUDDENLY LOSES ILLUMINATION. and any specific notes. Binoculars. For presentation purposes. SCOPE. HANDLE WITH CARE. and leak testing pressures and times for specific fire control instruments. Alinement Devices. 3-1 . charging. Under each of these categories the specific instruments are listed alphanumerically. Telescopes. c. The soap solution used in general procedures in chapter 2 is a mixture of soap (item 7. replace with the appropriate screw as listed in Appendix C or in appropriate technical manual. DO NOT ATTEMPT TO REPAIR. NOTE If the outlet port screw or purging inlet screw is lost or damaged. Periscopes. IMMEDIATELY DOUBLE WRAP INSTRUMENT IN PLASTIC AND NOTIFY THE LOCAL RADIATION PROTECTION OFFICER (RPO). IN THE EVENT THE RADIOLUMINOUS SOURCE IS BROKEN. Computers. cautions or warnings applicable to the specific instrument. and Reticle Projector Unit. specific instrument procedures are arranged in categories: Aiming Circle. Refer to paragraph 2-2 for initial setup information and paragraph 2-5 for general purging and charging procedures. Rangefinders.TM 750-116 CHAPTER 3 PURGING AND CHARGING SPECIFIC INSTRUMENTS SECTION I GENERAL INFORMATION 3-1. Also included are instructions for separation of major assemblies. Quadrants. This chapter presents purging. appx B) and water. a. Mounts. Each procedure refers to a partially exploded illustration showing location of inlet and outlet ports. Collimators. Leak-Tee may also be used if available. time durations. b. CRACKED. Sights. use of inlet port adapters. f. appx B) to setscrew to reinstall. 3-3. Elevate elbow telescope to about 800 mils.d. 3-2. Perform purging procedure para 2-5. Remove adapter assembly and install self-sealing screw (2). i. Remove self-sealing screw (2). d. e. Figure 3-2 M19 Binocular a. Elevate elbow telescope until self-sealing screw (2) is accessible. Return elbow telescope to zero mils. for both sides. c. Apply sealing compound (item 6. Perform purging procedure para 2-5.TM 750-116 SECTION II SPECIFIC INSTRUMENTS g. M19 (fig. h. remove one of the reticle setscrews to purge. Depress elbow telescope to about 400 mils. 3-1). M2A2 (fig.d. BINOCULAR. Purge instrument at 5 psig for 5 minutes. Repeat procedure para 2-5. AIMING CIRCLE. Install adapter assembly with 8-32 UNC-2A threads. b. Purge instrument at 5 psig for 5 minutes. 3-2 . DO NOT EXCEED THE PRESSURES INDICATED THROUGHOUT THE FOLLOWING PROCEDURES. NOTE On aiming circle with only one self-sealing screw. 3-2) NOTE Both sides of the binocular must be purged individually. Install self-sealing screw (1). SELF-SEALING SCREW SELF-SEALING SCREW k. Remove self-sealing screw (1).d. Figure 3-1 M2A2 Aiming Circle a. j. b. M21 ELECTRONIC (figs. Leak test for a minimum of 5 minutes. c.b. DO NOT ATTEMPT TO REPAIR. Perform purging and charging procedure para 2-5. IN THE EVENT THE RADIOLUMINOUS SOURCE IS BROKEN. 3-4 through 3-9). Remove hose assembly and release all pressure by depressing inlet port valve stem.). Charge instrument at 3 psig maintaining pressure for 10 seconds.. Install inlet port cap.a. Purge instrument at 3 psig for 5 minutes. .). a. 3-3 . HANDLE WITH CARE. (1) Perform purging and charging procedure para 2-5. (2) Purge each unit at 8 psig for 5 minutes. 3-4). M1A1 (fig. 3-3). IMMEDIATELY DOUBLE WRAP INSTRUMENT IN PLASTIC AND NOTIFY THE LOCAL RADIATION PROTECTION OFFICER (RPO). the single stage fixture may be used (refer to para 2-2. g. Check to be sure nitrogen is escaping from both outlet ports. 3-5. Ammo Select Unit . \ Figure 3-4 Ammo Select Unit Figure 3-3 M1A1 Collimator NOTE Actual location of outlet port screws may vary from location shown in illustration due to colimator adjustments. (4) Leak test for a minimum of 5 minutes... the two stage fixture is required (refer to para 2-2. NOTE For sealing the collimator. a. b..b.two each (fig. For regular purging and charging. OR SUDDENLY LOSES ILLUMINATION. COMPUTER.b. d. f. COLLIMATOR..TM 750-116 3-4. e. h. CRACKED. Reconnect hose assembly and charge instrument at 1 psig for 10 seconds. (3) Charge each unit at 1 psig maintaining pressure for 10 seconds. Figure 3-7 Gunner’s Control Unit e. Computer Unit (fig 3-6). Figure 3-6 Computer Unit Figure 3-8 Output Unit 3-4 .a.a. Refer to para 3-5. 3-8). 3-5). Refer to para 3-5.a. 3-7).a for procedures.TM 750-116 b. Refer to Figure 3-5 Cant Angle Sensor c. for procedures. for procedures. para 3-5. Output Unit (fig. Gunner’s Control Unit (fig. d. Refer to para 3-5. Cant Angle Sensor (fig. for procedures. 3-7. OR SUDDENLY LOSES ILLUMINATION. Purge instrument at 7 psig for 5 minutes. Charge instrument at 1 psig maintaining pressure for 10 seconds. IN THE EVENT THE RADIOLUMINOUS SOURCE IS BROKEN. M139/M140. c. d. Figure 3-10 M139/M140 Alinement Device Figure 3-9 Rate Tachometer a. 3-6. (fig.b. HANDLE WITH CARE. Refer to para 3-5. Perform purging and charging procedure para 2-5. M26/M27 Boresight (fig. b. ALINEMENT. CRACKED. Figure 3-11 M26/M27 Boresight Device (1) Remove the rubber protective head cover. DEVICES. for procedures.TM 750-116 f. Leak test for minimum of 5 minutes. BORESIGHT. Rate Tachometer (fig. 3-5 . 3-11). 3-9). DEVICE. 3-10). IMMEDIATELY DOUBLE WRAP INSTRUMENT IN PLASTIC AND NOTIFY THE LOCAL RADIATION PROTECTION OFFICER (RPO). DO NOT ATTEMPT TO REPAIR.a. a. (6) Charge instrument at 3 psig maintaining pressure for 10 seconds. M137 (fig. TELESCOPE. M26A1/M27A1 Muzzle Boresight (fig. To attach the hose asembly to these units. Figure 3-13 M137 Telescope Mount (1) Perform purging procedure para 2-5. M145/M145A1 (fig. (3) Purge instrument at 5 psig for 5 minutes. (4) Install the rubber protective head cover on the boresight. TM9-4933-259-14&P) and install angle valve on inlet port. Telescope Mount. b.TM 750-116 NOTE Some early manufacture boresight inlet ports were equipped with metric threads.d. Figure 3-12 M26A1/M27A1 Muzzle Boresight (1) Release pressure from optical unit by removing pneumatic inlet port cap and depressing valve core . (2) Purge instrument at 5 psig for 5 minutes. (3) Turn angle valve T clockwise (CW) until snug. Telescope Mount. a. 3-8. 3-12). (9) Leak test for minimum of 5 minutes.c. MOUNTS. 3-13). Figure 3-14 M145/M145A1 Telescope Mount (1) Perform purging procedure para 2-5. (2) Purge instrument at 5 psig for 5 minutes. (7) Turn angle valve T counterclockwise (CCW) until snug. Insert the adapter carefully and do not force the adapter past its binding point. (2) Perform purging procedure para 2-5. 3-6 . 3-14). b. (5) Purge instrument at 5 psig for 5 minutes or until all traces of moisture in optical unit are removed. (8) Remove hose assembly and angle valve from inlet port core. (4) Perform purging and charging procedure para 2-5.c.b. it is necessary to use the 10-32 adapter supplied with the purging kit. (2) Attach hose assembly to angle valve (special tool. Telescope Mount. Telescope. Maintain pressure for 10 minutes.TM 750-116 c. d. DO NOT ATTEMPT TO REPAIR. (2) (3) (4) (5) Perform purging and charging procedure para Relief valve should open between 3-10 psig. (5) Leak test for a minimum of 5 minutes. (2) Perform purging and charging procedure para 2-5. Do not remove poppet valve on M149E1 Telescope Mount. (4) Charge instrument at 1 psig for 40 seconds. Leak test for minimum of 5 minutes. M149/M149E1 (fig.b for M149 and para 2-5. 3-16). Figure 3-15 M149/M149E1 Telescope Mount (1) Remove inlet port cap and outlet screw on M149 Telescope Mount. OR SUDDENLY LOSES ILLUMINATION.a. HANDLE WITH CARE. M187 (fig. Relief valve should close between 1-5 psig. (1) 2-5. Mount. NOTE Mount must be removed from installed position for purging and charging operations. IMMEDIATELY DOUBLE WRAP INSTRUMENT IN PLASTIC AND NOTIFY THE LOCAL RADIATION PROTECTION OFFICER (RPO). (3) Purge M149 Telescope Mount at 5 psig and M149E1 Telescope Mount at 3 psig.a for M149A1. Purge instrument for 5 minutes. Figure 3-16 M187 Telescope Mount 3-7 . 3-15). Refer to appendix A for a listing of applicable publications. IN THE EVENT THE RADIOLUMINOUS SOURCE IS BROKEN. CRACKED. a. Figure 3-19 M30C Tank Periscope 3-8 . Figure 3-17 M65 Battery Commander’s Periscope a. d. Charge instrument at 1 psig maintaining pressure for 20 seconds. Leak test for minimum of 5 minutes.b. Repeat procedure for each tube assembly. c. 3-17). NOTE The eyeshield must be removed to provide access to outlet screw. Figure 3-18 M28C Tank Periscope (1) Perform purging and charging procedure para 2-5. Ensure that nitrogen is escaping from both outlet ports before proceeding with charging procedures.b. 3-10. Purge instrument at 5 psig for 10 minutes. b. M30C Tank (fig. TANK. Perform purging and charging procedure para 2-5. Periscope. Refer to appendix A for a listing of applicable publications. (3) Charge instrument at 1 psig maintaining pressure for 10 seconds. PERISCOPES. PERISCOPE. NOTE Both tubes of the Battery Commander’s Periscope must be purged and charged separately. b. (4) Leak test for minimum of 5 minutes. M65 BATTERY COMMANDER’S (fig. Periscope. M28C Tank (fig. NOTE The periscope must be removed from installed position for purging and charging operations. (2) Purge instrument at 5 psig for 10 minutes. 3-18). 3-19).TM 750-116 3-9. c.TM 750-116 (1) Perform purging and charging procedure para 2-5. (4) Leak test for minimum of 5 minutes. (2) Purge instrument at 5 psig for 10 minutes. 3-9 . (1) Head Assembly (fig. (3) Charge instrument at 1 psig maintaining pressure for 20 seconds. (d) Leak test for minimum of 5 minutes.b. Do not purge and charge the infrared body assembly in bright light. M32E1 Tank (figs.5V-OFF-24V SWITCH ON BOTTOM OF THE INFRARED BODY ASSEMBLY IS SET TO OFF. ENSURE THAT 1. (b) Purge instrument at 8 psig for 5 minutes.000 VDC. 3-20 through 3-22). 3-20). (c) Charge instrument at 1 psig maintaining pressure for 10 seconds.b. Periscope. NOTE Periscope must be removed from installed position for purging and charging operations. Refer to appendix A for listing of applicable public a- Figure 3-20 M32E1 Head Assembly (a) Perform purging and charging procedure para 2-5. prolonged exposure can cause damage to the image conversion tube. THIS UNIT CARRIES 16. (c) Charge instrument at 1 psig maintaining pressure for 20 seconds. 3-21).c. (d) Leak test for minimum of 5 minutes. Refer to para 3-10.b.c. 3-22). (c) Charge instrument at 1 psig maintaining pressure for 20 seconds. Figure 3-21 M32E1 Daylight Body Assembly (a) Perform purging and charging procedure para 2-5. (3) Passive Elbow Assembly (fig. Periscope. 3-20 through 3-22).b. (d) Leak test for a minimum of 5 minutes. 3-20 through 3-22. Periscope.TM 750-116 (2) Daylight Body Assembly (fig. for procedures. (b) Purge instrument at 8 psig for 5 minutes. 3-10 . NOTE The daylight body assembly must be removed from head assembly for purging and charging operations. NOTE: TWO VIEWS SHOWN FOR CLARITY Figure 3-22 M32E1 Passive Elbow Assembly (a) Perform purging and charging procedure para 2-5. Refer to appendix A for a listing of applicable publications. NOTE The passive elbow assembly must be removed from head assembly for purging and charging operations. d. M32CE1 Tank (figs. Refer to para 3-10. e. M35E1 Tank (figs. Refer to appendix A for a listing of applicable publications. (b) Purge instrument at 8 psig for 5 minutes. for procedures. Periscope. THIS UNIT CARRIES 16. 3-11 . (1) Head Assembly (fig. (d) Leak test for a minimum of 5 minutes. 3-24). Do not purge and charge the infrared body assembly in bright light. (2) Daylight Body Assembly (fig. (a) Perform purging and charging procedure para 2-5. ENSURE THAT 1. (b) Purge instrument at 8 psig for 5 minutes. Refer to appendix A for a listing of applicable publications. prolonged exposure can cause damage to the image conversion tube. 3-23). (b) Purge instrument at 8 psig for 5 minutes. (d) Leak test for minimum of 5 minutes.b. M36 Tank (figs. Figure 3-24 M36 Daylight Body Assembly Figure 3-23 M36 Head Assembly (a) Perform purging and charging procedure para 2-5.b. 3-23 through 3-26). (C) Charge instrument at 1 psig for 20 seconds. NOTE The daylight body assembly and the infrared body assembly must be removed from the head assembly for purging and charging procedures. NOTE The periscope must be removed from the installed position for purging and charging operations.5-OFF-24V SWITCH ON THE BOTTOM OF THE INFRARED BODY ASSEMBLY IS SET TO OFF. (c) Charge instrument at 1 psig for 10 seconds. Refer to appendix A for a listing of applicable publications.TM 750-116 f.000 VDC. NOTE: TWO VIEWS SHOWN FOR CLARITY Figure 3-26 M36 Passive Elbow Assembly NOTE: TWO VIEWS SHOWN FOR CLARITY Figure 3-25 M36 Infrared Body Assembly (a) Perform purging and charging procedure para 2-5. 3-27). M42 Tank (fig. Refer to para 3-10. (4) Passive Elbow Assembly (fig. 3-12 .d. Refer to appendix A for a listing of applicable publications. Leak test for a minimum of 5 minutes. Tank Periscope. Figure 3-27 M42 Tank Periscope . 3-23 through 3-26). Refer to appendix A for a listing of applicable publications.b. NOTE Early. g. 3-26). NOTE The infrared body assembly must be removed from the head assembly for purging and charging operations.f. Periscope. (1) Early Production (fig.TM 750-116 (3) Infrared Body Assembly (fig. (b) Purge instrument at 5 psig for 5 minutes. later. 3-25). M36E1 Tank (figs. (c) (d) Charge instrument at 1 psig for 20 seconds.f. Refer to para 3-10. and modified production periscopes must be removed for purging and charging procedures. 3-27). (b) Purge instrument at 8 psig for 5 minutes.Early Production (a) Perform purging procedure para 2-5. h.(3) for procedures. for procedures. b. Do not expose periscope to bright light. (d) Leak test for minimum of 5 minutes. (c) Charge instrument at 1 psig for 10 seconds. (1) Purging and Charging in the Installed Position (fig. M44A Tank (figs. (b) Purge instrument at 5 psig for 5 minutes. 3-28). 3-32. Figure 3-30 M44A Series Tank Periscope (a) Perform purging and charging procedure para 2-5. Figure 3-29 M42 Tank Periscope .(2) above for procedures. Refer to para 3-10. Periscope. THE HIGH VOLTAGE AND LOW AMPERAGE OF THE POWER PACK IS NOT DANGEROUS. (d) Leak test for minimum of 5 minutes. IF THE HIGH VOLTAGE PARTS ARE TAMPERED WITH.b. 3-30 through i. ENSURE THAT THE VEHICLE MASTER SWITCH AND THE PERISCOPE EMERGENCY SWITCH ARE IN THE OFF POSITION. (c) Charge instrument at 1 psig for 20 seconds.Late Production Special plate assemblies are provided for purging and charging when the head assembly and body assembly are separated. HOWEVER. prolonged exposure may cause damage to image conversion tube. (3) Modified Production (fig.Modified Production (b) Purge instrument at 5 psig for 10 minutes. These plates are also used for shipment and storage of the periscope.h.TM 750-116 (2) Late Production (fig. (a) Perform purging and charging procedure para 2-5. AN ELECTRICAL SHOCK MAY RESULT. 3-13 . 3-30). 3-29). NOTE Figure 3-28 M42 Tank Periscope . 3-14 . (C) Charge instrument at 1 psig for 20 seconds. (3) Purging and Charging the Body Assembly (fig.b. 3-30 through 3-32). 3-32). Figure 3-32 M44A Body Assembly (a) Perform purging and charging procedure para 2-5. Periscope. 3-31). for procedures. Figure 3-31 M44A Head Assembly (b) Purge instrument at 5 psig for 10 minutes. j. k.TM 750-116 (2) Purging and Charging the Head Assembly (fig.i.i. NOTE Mount plate 10549705 before proceeding with purging and charging operations.b. M44A3 Tank (figs. (d) Leak test for minimum of 5 minutes. for procedures. Periscope. Leak test for minimum of 5 minutes. (a) 2-5. Refer to para 3-10. M44A2 Tank (figs. Charge instrument at 1 psig for 20 seconds. (b) (c) (d) Perform purging and charging procedure para Purge instrument at 5 psig for 10 minutes. Refer to para 3-10. NOTE Install plate 10542087 before performing purging and charging procedures. 3-30 through 3-32). Refer to para 3-10. Do not purge and charge the infrared body assembly in bright light. Refer to para 3-10. p. Periscope. 3-30 through 3-32). Refer to appendix A for a listing of applicable publications. for procedures. NOTE The periscope body assembly must be separated from the head assembly or removed from storage for purging and charging procedures. M47 Tank (fig. M44A2E1 Tank (figs. Figure 3-33 M47 Tank Periscope Body Assembly Figure 3-34 M48 Periscope Body Assembly (1) Perform purging and charging procedure para 2-5.TM 750-116 l. AN ELECTRIC SHOCK CAN RESULT. (2) Purge instrument at 5 psig for 5 minutes. THE HIGH VOLTAGE AND LOW AMPERAGE OF THE POWER PACK IS NOT DANGEROUS. 3-34). HOWEVER. o.i. Refer to appendix A for a listing of applicable publications. (2) Purge instrument at 5 psig for 5 minutes. (3) Charge instrument at 1 psig for 10 seconds. Periscope. M44A1E1 Tank (figs. m. (4) Leak test for minimum of 5 minutes. Periscope M48 Tank (fig.i. for procedures. for procedures.i. Refer to para 3-10. ENSURE THAT VEHICLE MASTER SWITCH IS IN OFF POSITION. (1) Perform purging and charging procedure para 2-5. (4) Leak test for minimum of 5 minutes. (3) Charge instrument at 1 psig for 10 seconds.b. Periscope. n. IF THE HIGH VOLTAGE PARTS ARE TAMPERED WITH. 3-33). Periscope. 3-30 through 3-32).b. NOTE The periscope body assembly must be separated from the head assembly or removed from vehicle storage for purging and charging procedures. 3-15 . 3-30 through 3-32). prolonged exposure may cause damage to the image conversion tube. M44A4 Tank (figs. 4 kPa) on low pressure gage.TM 750-116 q. (a) Remove desiccant cap and old desiccant from desiccant container and install desiccant cap. M901 (fig 3-35).0 psig +5°F to +30°F (-15°C to -l°C) 0. (1) Upper Section. NOTE Desiccant must be replaced every time unit is purged.5 to 34. (l) Close nitrogen tank supply valve (CW) and remove hose assembly. purge charging lines by blowing pressurized nitrogen through lines. (g) Purge until humidity indicator is blue (approximately 30 minutes). (j) Lubricate preformed packing on desiccant cap lightly with grease or silicone compound and install cap and desiccator. Periscope. (c) Close pressure regulator valve (CCW). (a) Remove desiccator by unscrewing container part (hex head) from tank periscope body. Loss of pressure resulting from such attempts will shorten the time between maintenance actions. (k) Slowly open pressure regulator valve (CW) and pressurize upper section for 10 seconds to value given below for ambient air temperatures. Open nitrogen tank valve and observe nitrogen tank pressure gauge. (f) Alternately open and close self-sealing screw holes so one hole is open and another is closed every 15 minutes. Pressurize to: Above +110°F (43°C) 4. 3-16 . Remove slotted cap and install new desiccant. (b) Hold container part upright and remove slotted cap of desiccator by turning counterclockwise using screwdriver and discard old desiccant.0 psig +30°F to +55°F (-1°C to 13°C) 1.5 psig Below +5°F (-15°C) 0 psig Pressurizing in excess of 10 psig (68. Check that nitrogen is being discharged from selfsealing screw holes.0 psig +55°F to +85°F (13°C to 29°C) 2. (h) Close pressure regulator valve (CCW). (e) Open pressure regulator valve (CW) to purge pressure of 4-5 psig (27. Install hose assembly and loosen self-sealing screws in both upper and lower sections.4 kPa) on low pressure gage. Install dust cap on filler valve. Pressurizing assemblies in excess of 10 psig (68.5 to 34. This will remove any contamination in lines. (d) Remove l/4-inch upper and lower self-sealing screws. Refer to appendix A for listing of applicable publications. Ambient Air Temperature List Air Temp. (2 to 3 Nm). Open main valve on nitrogen tank and observe nitrogen tank pressure gage indicating tank is pressurized.. (c) Remove dust cap on filler valve and install valve extension and hose. (b) Close pressure regulator valve (CCW).95 kPa) can cause damage to seals. Check that nitrogen is being discharged from selfsealing screw holes. Figure 3-35 M901/M981 Tank Periscope (2) Lower Section. (e) Open pressure regulator valve (CW) to purge pressure of 4-5 psig (27. Do not check pressure at any time other than during the pressurizing cycle.0 psig +85°F to +110°F (25°C to 43°C) 3. Torque cap to 20 to 30 in lb. indicating tank is pressurized. (d) Remove dust cap on filler valve. (i) Remove desiccator from tank periscope body.95 kPa) can cause damage to seals. To prevent damage to tank periscope. 3-35). 3-11. a. Quadrants. Refer to para 3-11. Remove hose and valve extension and install dust cap. 3-37 and 3-38). (2) Purge instrument at 5 psig for 5 minutes. (k) Slowly open regulator valve (CW) and charge lower section for 10 seconds to value given in ambient air temperature chart in para 3-10.New Configuration . Torque cap to 20 to 30 lb in. lubricate self-sealing screw preformed packing lightly with silicone compound. Refer to para 3-10.q. 3-17 Figure 3-38 M15 Quadrant .a. (g) Purge until humidity indicator is blue.d. (l) Close nitrogen tank valve. M15 (figs. During purge. Figure 3-36 M14 and M14A1 Quadrants (1) Perform purging and charging procedure para 2-5. Figure 3-37 M15 Quadrant . M14 (fig. 3-36). New configuration units are illustrated in figure 3-38. c. (2 to 3 Nm). Quadrant. b. (4) Leak test for minimum of 5 minutes. (3) Charge instrument at 1 psig for 10 seconds. 3-36).b.q. r. Periscope. refer to figure 3-37. NOTE For old configuration units..TM 750-116 (f) Alternately open and close self-sealing screw holes so one hole is open and other is closed every 15 minutes. M14A1 (fig. Quadrant. M981 Tank (fig.Old Configuration (1) Perform purging procedure para 2-5. Quadrant. for procedures. (h) Close pressure regulator (CCW) and reinstall two self-sealing screws. (2) Purge instrument at 5 psig for 5 minutes. (i) Remove desiccant cap and insert new desiccant from sealed package immediately into desiccant container. for procedures. (j) Lubricate preformed packing on desiccant cap lightly with grease or silicone compound and reinstall cap. (f) Loosen. (h) While purging. 3-18 . Install inlet plug with preformed packing attached and outlet screw with preformed packing attached. remove hose assembly and depress valve core until all pressure has escaped. If damage is evident. 3-39). (c) Remove inlet plug and preformed packing. (2) Purge instrument at 7 psig for 5 minutes. Laser. Quadrant. (j) Reassemble by tightening sealing screw and installing cover. for procedures. NOTE See appendix C for Service Kit containing replacement parts for M1 and M1A1 Tanks. (1) Optical Cavity (fig. e. (b) Perform purging procedure para 2-5. (fig. 3-12. (5) Charge instrument at 1 psig for 60 seconds. RANGEFINDERS. 3-39). 3-40). d.TM 750-116 d. M17. NOTE While purging the quadrant. (g) Purge instrument at 5 psig for 5 minutes. ensure the pressure relief valve is working by checking for nitrogen gas escaping from the valve. but do not remove sealing screw. (4) If relief valve closes before reaching 1 psig. Refer to para 3-11. a. (6) Leak test for a minimum of 5 minutes. leak test lens area.a.c. (i) Remove hose assembly and valve extension from inlet port. Figure 3-39 M17 and M18 Quadrants (1) Perform purging and charging procedure para 2-5. (3) Turn pressure regulator off (CCW) and note when relief valve closes. (e) Attach hose assembly to valve extension. Figure 3-40 Laser Rangefinder Optical Cavity (a) Remove cover and check lens for cracks and breaks. (d) Install valve extension on inlet port. do not attempt purging and charging procedure. Quadrant. M18 (fig. (k) Install inlet port cap. b.d. (4) Laser Electronics Unit (fig.(1) for procedures.TM 750-116 (2) Electronic Cavity (fig. If not. (b) Remove outlet screw with preformed packing attached.b. Figure 3-41 Laser Rangefinder Electronics Cavity (a) Remove inlet screw with preformed packing attached. Perform purging procedure para 2-5. 3-41).Transmitter (b) Purge instrument at 8 psig for 5 minutes. Figure 3-42 AN/VVG-2 Receiver . NOTE Refer to para 4-12. Electronics Compartment. (1) (a) (b) minutes. Ensure nitrogen is escaping from the relief valve. Purge electronics compartment at 8 psig for 5 (2) Receiver-Transmitter (R/T) Compartment. (3) Optics Compartment.(1) for procedures.d. 3-19 . (d) Purge instrument at 5 psig for 5 minutes. repair as necessary.b. NOTE See appendix C for Service Kit containing replacement parts for M1 and M1Al Tanks. Figure 3-43 AN/VVG-2 Electronics Unit (a) Perform purging procedure para 2-5. Refer to para 3-12. (c) Perform purging procedure para 2-5.d. 3-43). AN/VVG-2 Laser (fig. 3-42). TM 750-116 c. (b) (c) (d) Body Assembly (fig. Purge instrument at 8 psig for 30 minutes. Some end housings have a relief valve instead of an outlet screw. NOTE Rangefinder end housings are purged and charged on a yearly basis.b. they must be visually inspected every 90 days.a. Ensure relief valve closes at 5 psig. M17B1C. 3-44) Figure 3-45 M17A1 and M17C End Assembly Perform purging and charging procedure para (a) Remove inlet port cap and outlet screw with preformed packing attached. Purging pressure for end housings with relief valves must be increased to 8 psig to open the relief valve and keep it open during purging. (2) End Housing Assemblies (figs. 3-45 and 3-46). 3-44 through 3-46). (e) Leak test for minimum of 5 minutes. (d) Charge instrument at 1 psig for 10 seconds. (c) Purge instrument at 5 psig for 5 minutes. however. 3-20 . disregard the procedure that removes the outlet screw. Figure 3-44 M17A1 Body Assembly (1) (a) 2-5. and M17C. M17A1. When there is a relief valve. (b) Perform purging and charging procedure para 2-5. NOTE Blister and splatter shields must be removed for end housing assembly purging and charging procedures. Leak test for a minimum of 5 minutes. Charging pressure for housings with relief valves is the 5 psig at which the relief valve seats. (figs. (e) Charge instrument at 5 psig. (1) Backup Sight. SIGHTS. (b) Open valve stem (outlet screw) on outer head assembly onlv three turns for purge procedure. a. M2A1. (a) Open and secure gunner’s hatch cover. Refer to TM 9–2350-252-10-2. Never let low pressure gage get higher than 4 psig.c. 3-47). (a) Perform purging and charging procedure para 2-5. M3. open sight shield assembly per TM 9-2350-252-20–2-3. (c) For M2A2 and M3A2 only. NOTE The backup sight must be moved to gunner’s position and the commander’s hatch cover opened and secured before purging and charging. PN 12316793 . Figure 3-48 Integrated Sight Unit ISU seals could rupture if pressure is too high. (g) Close hatch and secure commander’s hatch cover. and M3A1 only. Refer to para 3-12. (Refer to TM 9-2350-252-l0-2 for M2.(2) for procedures. M3. PN 12316793. remove ballistic sight shield assembly per TM 9-2350-284-20-2-3. 3-47 through 3. 3-46) is purged and charged in the same manner as the M17A1 and M17C with the exception of removing two outlet screws instead of one.52). M3. M2A2. M2A1. 3-48 and 3-49).b. and M3A1 or TM 9-2350-282-l0-2 for M2A2 and M3A2. M3A1. (fig. (f) Leak test for minimum of 5 minutes. Figure 3-46 M17B1C End Assembly 3-13. 3-21 Figure 3-47 Backup Sight. (2) Integrated Sight Unit (figs. M2A1. BFV TOW/TOW2 SUBSYSTEM (M2. (c) Purge instrument at 5 psig for 5 minutes.) (b) For M2.TM 750-116 NOTE The end assembly for the M17BlC (fig. (d) Close valve stem (outlet screw) on outer head assembly. AND M3A2 (figs. repair per table 3-1. and M3A2 only.5 psig. remove two screws. M3A1. M2A1. 3-22 . M3. (i) Charge instrument at 4 psig for 10 minutes. (h) Torque outlet port screw to 24-28 in-lb (28-32 cm kg). (e) Remove outlet port screw and discard. install ballistic sight shield assembly per TM 9-2350-284-20-2-3. (n) Close and secure gunner’s hatch cover per TM 9-2350-252-10-2 (for M2. and M3A1 only) or TM 9-2350-284-10-2 (for M2A2 and M3A2 only). M3. If leak is detected. and M3A1 only) or TM 9-2350-284-10-2 (for M2A2 and M3A2 only). ONLY) Figure 3-49 Lamp Assembly (b) For M2A2 and M3A2 only. M3.b. appx B) to o-ring of replacement outlet port screw and install. and M3A1 only. (3) Commander’s Relay Assembly (figs. 3-50 and 3-51). M2A1. close sight shield assembly per TM 9-2350-252-20-2-3. (g) Apply thin coat of lubricant (item 3. M2A2. M2A1. (j) Leak test instrument for minimum of 10 minutes. (a) Open and secure gunner’s hatch cover per TM 9-2350-252-10-2 (for M2. and M3A1 vehicles TM9-2350-25220-2-3 TM9-2350-25220-2-3 TM9-2350-25220-2-3 TM9-1425-47434-1 (M2/M3) TM9-1425-45334-1 (M2A1/ M3A1) Manual referred for M2A2 and M3A2 vehicles TM9-2350-28420-2-3 —— TM9-2350-28420-2-3 TM9-1425-45334-1 lamp window collar assembly lampholder assembly cover valve assembly all other parts of ISU Figure 3-50 Commander’s Relay Assembly LAMP WINDOW COLLAR ASSEMBLY Commander’s Relay Assembly seals could rupture if pressure is too high. (l) For M2. Never let low pressure gage get higher than 4 psig. Table 3-1 Leak Test. reduce pressure from 4 psig to approximately 1. shim(s). M3. (k) For M2A1.TM 750-116 (d) Perform purging and charging procedure para 2-5. (m) For M2A2 and M3A2 only. and night sight cover actuator handle/support. LAMPHOLDER COVER (M2. Integrated Sight Unit Part leak detected from Manual referred for M2. M3. NOTE Shim(s) may or may not be present between night sight cover support and turret. (f) Purge instrument at 4 psig for 10 minutes or until all visible traces of moisture are gone. washers. M2A1. appx B) to threads of two screws. repair per table 3-2. (d) Remove outlet port screw and discard. 8635466 Infinity Sight (fig. (h) Charge instrument at 4 psig for 10 minutes. The procedures for purging and charging apply to later production models only. (f) Apply thin coat of lubricant (item 3. appx B) to o-rings of replacement outlet port screw and install. If leak is detected. M2A1.b. DMWR 9-1240-399-1 (j) For M2A2 and M3A2 only. NOTE Infinity sights 8635466 are identified as early and late production models. 3-52). (g) Torque outlet port screw to 10-12 in-lb (12-14 cm kg). M3) DMWR 9-1240-399-1 (M2A1. appx B) and sealing compound (item 5. M3. (i) Leak test instrument for minimum of l0 minutes. and M3A1 vehicles TM9-2350-25220-2-3 TM9-1425-47434-1 (M2/M3) TM9-1425-45334-1 (M2A1/ M3A1) DMWR 9-1240-394 (M2. Commander’s Relay Assembly Part leak detected from Manual referred for M2. Figure 3-52 8635466 Infinity Sight 3-23 .TM 750-116 Table 3-2 Leak Test. M3A1) Manual referred for M2A2 and M3A2 vehicles TM9-2350-28420-2-3 TM9-1425-45334-1 valve assembly commander’s eyepiece assembly all other parts of commander’s relay asembly Figure 3-51 Night Sight Cover Actuator Handle/Support (c) Perform purging and charging procedure para 2-5. night sight cover actuator handle/support and install two washers and screws. and M3A1 only) or TM 9-2350-282-10-2 (for M2A2 and M3A2 only). (e) Purge instrument at 4 psig for 3-5 minutes or until all visible traces of moisture are gone. M2A1. (k) Close and secure gunner’s hatch cover per TM 9-2350-252-10-2 (for M2. b. M3. apply primer item 4. Position shim(s). TM 750-116 (1) Perform purging and charging procedure para 2-5. and plunger. (1) Perform purging and charging procedure para 2-5. (3) Ensure relief valve closes at 5 psig. 3-24 . 3-53). (2) Purge instrument at 5 psig for 5 minutes. (4) Leak test for a minimum of 10 minutes. c.) Figure 3-54 M61 Computing Sight (1) Perform purging procedure para 2. Figure 3-53 M44C Infinity Sight Figure 3-55 Commander’s Extension PN 12285300 (1) Remove outlet plug. spring. (4) Leak test for a minimum of 5 minutes. 3-55). e.c (3) Purge instrument at 5 psig for 5 minutes.b (2) Purge instrument at 5 psig for 5 minutes.e. NOTE M44C sights are equipped with two types of inlet ports. Some sights require the use of an adapter. If this is the case.a. (3) Charge instrument at 5 psig for 5 minutes. (2) Perform purging procedure para 2-5. PN 12285300 (fig.5. use purging procedure para 3-5. (2) Purge instrument at 8 psig for 5 minutes. (3) Charge instrument at 1 psig for 10 seconds. (4) Leak test for a minimum of 5 minutes. M44C Infinity Sight (fig. Commander’s Extension.b. control shafts. PN 12549761-2. g. purging valve. sensitivity knob. and two boresight knobs from the front panel.TM 750-116 f. PN 9377279-2 (1) 2-5. Figure 3-57 Gunner’s Auxiliary Sight PN 12278900 Figure 3-56 Image Control Unit (1) Loosen. screws. (2) Remove all knobs from the unit. h. Control Unit.a. (4) Purge instrument at 10 psig for 3 minutes. reticle knob. Gunner’s Primary Sight. Figure 3-58 Gunner’s Primary Sight PN 12282140. PN 12278900 (fig. symbols knob. (3) Perform purging and charging procedure para 2-5. 3-57). (3) Ensure relief valve closes at 5 psig. (6) Leak test all sealed joints. unit test pattern knob.a. and relief valve for minimum of 15 minutes. (4) Leak test for a minimum of 5 minutes. 3-56). Ensure relief valve closes at 5 psig. Gunner’s Auxiliary Sight. (7) Install knobs on front panel. and PN 9377279-2 (fig. PN 12549761-3. Image (fig. PN 12549761-2. PN 12549761-3.a. 3-58). (2) Purge instrument at 8 psig for 10 minutes. (2) (3) (4) Perform purging and charging procedure para Purge instrument at 6 psig for 5 minutes. Leak test for minimum of 5 minutes. PN 12282140. 3-25 . (5) Ensure relief valve closes at 5 psig. (1) Perform purging and charging procedure para 2-5. but do not remove setscrews in the contrast knob. 3-60). (c) Ensure relief valve closes at 5 psig.a.i.(1) for procedures. Tank Thermal Sight. Refer to para 3-13. 3-61).(1) for procedures. 3-59) (3) Head Assembly (fig.TM 750-116 i. Figure 3-61 Head Assembly (4) Power Converter (fig. (b) Purge instrument at 8 psig for 5 minutes. Refer to para 3-13. Refer to para 3-13. Figure 3–59 Commander’s Display (a) Perform purging and charging procedure para 2-5. (2) Gunner’s Display (fig. Figure 3-60 Gunner’s Display Figure 3-62 Power Converter 3-26 .i. 3-62). (1) Commander’s Display (fig.(1) for procedures. (d) Leak test for minimum of 5 minutes.i. a. M127 (fig. (3) Ensure relief valve closes at 5 psig. 3-65).a. (2) Perform purging and charging procedure para 2-5. for procedures. Refer to para 3-14. 3-63).a. for procedures. 3-27 . Refer to para 3-14. (2) Purge instrument at 7 psig for 5 minutes. Figure 3-65 M127 Articulated Telescope (a) Perform purging and charging procedure para 2-5. b. c. 3-61).b. NOTE The telescope must be removed from the installed position for purging and charging procedures. Figure 3-63 Weapon Sight. (3) Purge instrument at 5 psig for 10 minutes. (1) Eyepiece Assembly. M105D (fig. Refer to appendix A for a listing of applicable publications. (5) Leak test for minimum of 5 minutes. Articulated Telescope. Articulated. Articulated Telescope. Telescopes. Articulated Telescope.TM 750-116 j. 3-14. (4) Charge instrument at 1 psig for 40 seconds. (2) Objective Assembly.(1) for procedures. Refer to para 3-14. 3-64). a. (4) Leak test for minimum of 5 minutes.a. (1) Remove inlet port cap and outlet plug with gasket attached. d. Articulated Telescope.c. M105F (fig. M127A1 (fig. PN 12279200 (1) Perform purging and charging procedure para 2-5. Weapon Sight. (b) Purge instrument at 8 psig for 10 minutes. 3-64). PN 12279200 (fig. Figure 3-64 M105D Series Telescope (d) Leak test for minimum of 5 minutes. (c) Ensure relief valves close at 5 psig. a. (3) Charge instrument at 1 psig for 1 minute. c. f. Figure 3-66 M114 Elbow Telescope (1) Perform purging and charging procedure para 2-5.TM 750-116 3-15. 3-69). Elbow Telescope. 3-69). NOTE The telescope must be removed from the installed position for purging and charging procedures.b. 3-66). d. (1) Perform purging and charging procedure para 2-5. (3) Ensure relief valve closes at 5 psig. Refer to para 3-15.a. 3-66). (4) Leak test for minimum of 5 minutes. for procedures. Telescopes. M16 and M116 Series (fig.d. M139 (fig. (2) Purge instrument at 5 psig for 5 minutes. (4) Leak test for minimum of 5 minutes. Figure 3-67 M118A2/M118A3 Elbow Telescope Figure 3-69 M139 Elbow Telescope (1) Perform purging and charging procedure para 2-5.b. M114A1 (fig. 3-28 . b. Figure 3-68 M138 Elbow Telescope (2) Purge instrument at 8 psig for 5 minutes. (1) Perform purging procedure para 2-5. for procedures. Refer to para 3-15. Elbow. Elbow Telescope. Elbow Telescope. (2) Purge instrument at 5 psig for 5 minutes. M138 (fig. Refer to appendix A for a listing of applicable end item manuals. e. 3-68). 3-67). a. (2) Purge instrument at 5 psig for 15 minutes. Elbow Telescope. (3) Charge instrument at 1 psig for 10 seconds. (4) Leak test for minimum of 5 minutes. Elbow Telescope.f. M118 Series (fig. Elbow Telescope. M114 (fig. (d) Charge instrument at 3 psig for 10 seconds. M12A7S (fig. M12A7Q (fig.d. M113 and M113A1 (fig.a. (1) Counter Box Assembly. 3-71). Panoramic Telescope. c. 3-70). (b) Perform purging and charging procedure para 2-5. Purge instrument at 5 psig for 5 minutes. (b) (c) Perform purging procedure para 2-5. 3-70).b. Refer to para 3-16. (a) Remove optical inlet port cap and optical outlet screw.TM 750-116 3-16. 3-71). Panoramic Telescope. (e) Leak test for minimum of 5 minutes. (c) Purge instrument at 5 psig for 5 minutes.c. (a) Remove counter box inlet port cap and outlet port cap. (2) Purge instrument at 5 psig for 5 minutes. Panoramic. a. Panoramic Telescope. b. Figure 3-70 M12A7Q Panoramic Telescope (1) Perform purging procedure 2-5. Telescopes. 3-29 . for procedures. Figure 3-71 M113 and M113A1 Panoramic Telescope (2) Optical Assembly (fig. (a) screw. Panoramic Telescope.c. (e) Leak test for minimum of 5 minutes. (c) Purge instrument at 5 psig for 5 minutes. (1) Counter Box. 3-30 . (b) 2-5. Purge instrument at 5 psig for 5 minutes. (a) Remove optical system inlet port cap and outlet screw.c. (b) (c) Remove counter box inlet port cap and outlet Perform purging procedure para 2-5. e. (1) Counter Box Assembly.TM 750-116 d. 3-72).b. Panoramic Telescope. Figure 3-72 M115 Panoramic Telescope (2) Optical Assembly. (d) Charge instrument at 1 psig for 10 seconds. M117/M117A1 (fig. Figure 3-73 M117/M117A2 Panoramic Telescope (2) Optical System. (c) (d) (e) Remove optical system inlet port cap and outlet Perform purging and charging procedure para Purge instrument at 5 psig for 5 minutes. (a) port cap. (b) Perform purging procedure para 2-5. (a) Remove counter box inlet port cap and outlet port cap. Charge instrument at 1 psig for 10 seconds. (b) Perform purging and charging procedure para 2-5.b. 3-73). (c) Purge instrument at 5 psig for 5 minutes. Leak test for minimum of 5 minutes. M115 (fig. (a) Remove counter box inlet port cap. IMMEDIATELY DOUBLE WRAP INSTRUMENT IN PLASTIC AND NOTIFY THE LOCAL RADIATION PROTECTION OFFICER (RPO). Panoramic Telescope M137 (fig.a Figure 3-75 M137A1 Panoramic Telescope 3-31 . OR SUDDENLY LOSES ILLUMINATION. (e) Leak test for minimum of 5 minutes.TM 750-116 f. DO NOT ATTEMPT TO REPAIR. HANDLE WITH CARE. HANDLE WITH CARE. (c) Purge instrument at 7 psig for 5 minutes. (1) Counter Box.a. DO NOT ATTEMPT TO REPAIR.a. IMMEDIATELY DOUBLE WRAP INSTRUMENT IN PLASTIC AND NOTIFY THE LOCAL RADIATION PROTECTION OFFICER (RPO). (a) Perform purging and charging procedure para 2-5. (d) Ensure relief valve closes between 1-5 psig. Figure 3-74 M137 Panoramic Telescope (2) Optical Assembly. Panoramic Telescope. CRACKED. (a) Remove optical inlet port cap. (c) Purge instrument at 7 psig for 5 minutes. IN THE EVENT THE RADIOLUMINOUS SOURCE IS BROKEN. 3-74). g. (1) Counter Box. M137A1 (fig. IN THE EVENT THE RADIOLUMINOUS SOURCE IS BROKEN. (b) Perform purging procedure para 2-5. (e) Leak test for minimum of 5 minutes. 3-75). CRACKED. (b) Relief valve should open between 3-10 psig. (b) Perform purging and charging procedure para 2-5. OR SUDDENLY LOSES ILLUMINATION. (c) Purge instrument at 7 psig for 5 minutes. (d) Ensure relief valve closes at 5 psig. During purge.25 to 3. (12) Remove dessicator from telescope body and refill desiccator to level slightly below threads. (19) Close pressure regulator gauge. Purge instrument at 7 psig for 5 minutes.0 + or . (b) (c) (d) (e) Perform purging and charging procedure para Relief valve should open between 3-10 psig. Leak test for minimum of 5 minutes.a. (14) Install top part of desiccator to bottom. (13) Lightly lubricate preformed packing on top part of desiccator with grease or silicone compound. Remove hose assembly and replace cap on nut of valve and install lockwire. (3) Discard old desiccant. NOTE Purge panoramic telescope when the internal optical surfaces are fogged over. (6) Remove lockwire and cap from valve stem. (20) Close tank supply valve and verify on high pressure gage. adjust pressure regulator to 2. Discard two preformed packings from desiccator. Install desiccator. The sealscrew is a captive screw and must not be removed. Contamination can damage the telescope. Ensure relief valve closes between 1-5 psig. M901A1 (fig.5 psig.39 Nm). 3–76). Figure 3-76 Panoramic Telescope.3 kPa).5 psig (14 + or . M901A1 (4) Close nitrogen tank valve and pressure regulator valve. 3-32 . (16) Install desiccator on telescope body and tighten to 20 to 30 in lb. h.TM 750-116 (2) Optical System. Panoramic Telescope. (a) 2-5. (17) Slowly open pressure regulator valve and charge instrument to 2. slowly open setscrew. then tighten setscrew when pressure regulator gauge stabilizes. Tighten setscrew when pressure regulator gauge stabilizes. (15) Lightly lubricate preformed packing with grease or silicone compound.0 + or . (1) Remove desiccator by unscrewing container part (hex head) from telescope body.0. (7) Install hose assembly on valve stem and loosen setscrew. Replace the desiccant and two preformed packings every time the unit is purged.. (2. (18) If overpressurization occurs. Removal of the screw damages equipment.0. (8) Adjust pressure regulator to 4-5 psig (28 to 34 kPa) as indicated on low pressure gauge. (10) Purge telescope until all sections of indicator are blue. Blow pressurized nitrogen through the charging lines to remove contamination. (11) Close pressure regultor valve and tighten setscrew. (5) Open tank supply valve and observe high pressure gauge indicating that tank is pressurized. (2) Hold container part upright and remove slotted cap of desiccator. Do not attempt to check the pressure in the panoramic telescope at any other time than during the pressurization cycle. (9) Verify nitrogen is being vented from sealscrew hole and observe humidity indicator. lubricate preformed packings lightly with silicone compound. Loss of pressure resulting from such attempts will shorten the time between maintenance actions. c. for procedures. M981 FISTV (fig. M90A2 Straight Telescope (fig. Purge instrument at 10 psig for 15 minutes. Charge instrument at 1 psig for 10 minutes. d.TM 750-116 i. b.h. 3-79). 3-17. 3-18. IMMEDIATELY DOUBLE WRAP INSTRUMENT IN PLASTIC AND NOTIFY THE LOCAL RADIATION PROTECTION OFFICER (RPO).b. Straight. Receiver/Transmitter (fig. CRACKED.a. HANDLE WITH CARE. a. a. b. M134 Straight Telescope (fig. IN THE EVENT THE RADIOLUMINOUS SOURCE IS BROKEN. 3-77). NOTE The telescope must be removed from the vehicle or the vehicle storage area before beginning purging procedures. Telescopes. (2) Relief valve should open between 3-10 psig. Refer to 3-16. Refer to appendix A for a listing of applicable publications. DO NOT ATTEMPT TO REPAIR. Figure 3-77 M90A2 Straight Telescope (1) Perform purging and charging procedure para 2-5. Leak test for minimum of 5 minutes. OR SUDDENLY LOSES ILLUMINATION. 3-76). 3-78). Panoramic Telescope. T e s t Set. Purge instrument at 5 psig for 5 minutes.d. (3) Purge instrument for 5 minutes. Figure 3-78 M134 Straight Telescope (1) (2) Perform purging procedure para 2-5. 3-33 . (4) Relief valve should close between 1-5 psig. Figure 3-79 Receiver/Transmitter Test Set Perform purging and charging procedure para 2-5. (5) Leak test for a minimum of 5 minutes. 3-80). 3–80 and 3-81). (6) Leak test for minimum of 5 minutes. 3-81). (7) Tighten outlet screw and install lens guard. Figure 3-81 M55 Deflector Optical Assembly 3-34 . (5) Charge instrument at 1 psig for 1 minute. Reticle Projector (fig. 3-82). Figure 3-82 Reticle Projector Unit a. Unit. M55 Laser (figs. (4) Purge instrument at 5 psig for 2 minutes. Barrel Assembly (fig.c. (2) Remove the lens guard and loosen the outlet screw.d. Deflector Optical Assembly (fig. (2) Purge instrument at 5 psig for 2 minutes. a. (1) Perform purging procedure para 2-5. Purge instrument at 8 psig for 5 minutes. remove the barrel extension by turning it counterclockwise. 3–20. b. b.TM 750-116 3-19. Perform purging procedure para 2-5. Trainer.b. (3) Perform purging and charging procedure para 2-5. Figure 3-80 M55 Barrel Assembly (1) If necessary. FIRE CONTROL INSTRUMENT Aiming Circle.DA Form 2028 Recommended Changes to Publications . . . . . . Recommended Changes to Publications . . . TECHNICAL MANUALS. . . . . . . . . . .. . . . . . . 9-1240-324-34&P BFVS M2/M3/M2A1/M3A1 9-2350-252-l0-2 9-2350-252-20-3 9-1425-474-34-l(M2/M3) 9-1425-453–34-l (M2A1/M3Al) 9-2350-284-10-2 9-2350-284-20-2-3 9-1425-453-34-1 9-2350-252-10-2 9-2350-252-20-2-3 9-1425-474-34-l(M2/M3) 9-1425-453-34-1 (M2A1/M3Al) 9-2350-284-10-2 9-2350-284-20-2-3 9-1425453–34-1 9-2350-304-20-2 9-2350-311-20-2 TM REFERENCE 9-1290-262-24 BFVS M2/M3 9-2350-252-10-2 APPLICATION END ITEM TM REFERENCE Commander’s Relay Assy. . . . . . . . . . . . . . . . . . . . . . . . . . . .SF 368 A-3. . . . . . . . . . . . . . . . . DA Form 2028-2 Quality Deficiency Report . . . . . FIELD MANUALS. . . . . TM 750-244-1-4 Procedures for Destruction of Equipment to Prevent Enemy Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BFVS M2A2/M3A2 Integrated Sight Unit BFVS M2/M3/M2Al/M3Al Integrated Sight Unit BFVS M2A2/M3A2 Mount.. . . . . .. . . . . . . . . . . . . . . . . . . . . . General Maintenance Procedures for Fire Control Materiel . . . . . . . . . . . . . . . and miscellaneous publications referenced in this manual. . . . . . . . . .. . . . . . . . . . .. . . . . . .. . . . . . . . . . . . . . . M1Al Commander’s Relay Assy. . . . . . . . . . . . . M2A2 Backup Sight Collimator. . . . . . . . . . . . . . . .FM 21-11 A-4. M137 Mount. . . . . . . . . .. . . .. . .TM 750-116 APPENDIX A REFERENCES A-1. . . . . technical manuals. A-2. M145/M145Al 9-1240-400-34 9-1240-401-34&P M11OA2 M109A2/A3/A4/A5 A-1 . . . . . FORMS. First Aid for Soldiers . . . . field manuals. . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . SCOPE. . . . . .. . . . . . . . . . . . . . . . .. . . . . . . . . . . This appendix lists all forms. . . . . . . .. .TM 750-244-3 The following publications should be referred to for removal and installation instructions.. . . .TM 9-254 Procedures for Destruction of Aviation General Support Equipment to Prevent Enemy Use . . . . . . . . . . . . . . . . . . . . . . . Fire Control: Organizational. . . . . . SUPPLY CATALOGS. M47 Periscope. . M36 Series Periscope. . Ml17/Ml17A2 Telescope. . . Ml18A2/Ml18A3 Telescope. .TM 750-116 A-4. . .. DA PAM 738-750 A-2 . . M42 Periscope. . Battery Commander’s Quadrant. M105F Telescope. . M115 Telescope. . . M32E1 Periscope. . . . . M149/M149A1 Muzzle Boresight M26A1/M27Al Periscope. . . . . . . . . . . . . . . . . Panoramic. . . . . . . . . . . . . . . . SC 4931-95-J54 A-6. . M65. . . . . M32CE1/M35El Periscope. . . . . . M105D 9-1240-313-34 9-1240-313-34 9-1240-314-34 9-1240-401-34 9-6650-221-35 9-6650-222-35 9-1240-368-34 9-1290-322-34&P 9-1240-262-34 M109A2/A3/A4/A5 M60A1 M60A3 M60A1 Rise/ M60A2Rise Passive M48A5 Tank M60 Tank CEV M728 M11OA2 M109A2/A3/A4/A5 M109A6 M109A2/A3/A4/A5 Vulcan SP. . . . . . . . MISCELLANEOUS PUBLICATIONS. Panoramic. . .. . . . M163A1 Vulcan. M30C Periscope. . TECHNICAL MANUALS – continued FIRE CONTROL Mount. . . . Purging Kit. . Direct and General Support Maintenance and Hand Receipt . . M134 9-1240-262-34 9-1240-400-34 9-1240-401-34&P 9-1240-401-34&P 9-1240-318-35 A-5. . . Towed M167A1 Towed Pivads M167A2 9-2350-311-20-2 9-2350-215-20-2 Series 9-2350-252-20-2 9-2350-257-20-2 Series 9-2350-258-20-2 9-2350-260-20-2 Series 9-2350-222-20-2 Series 9-2350-304-20-2 9-2350-311-10 9-2350-314-10 9-2350-311-10 9-2350-300-10 9-2350-286-10 9-1005-318-10 9-1240-312-34 9-4933-259-14&P M48A5 M48A5 M60/M60A1 CEV M728 M60/M60A1 M109A2/A3/A4/A5 M551/M551Al M551/M551A1 9-2350-258-20-2 9-2350-258-20-2 9-2350-222-2 Series 9-2350-222-20-2 Series 9-2350-257-20-2 Series 9-2350-31l-20-2 9-2350-230-20-l 9-2350-230-20-l M551/M551Al END ITEM 9-2350-230-20-2 Telescope. . . . . . M15 Telescope. M48 Periscope. . . . . . . . . . The Army Maintenance Management System (TAMMS) . . . . Repair Parts. use it to request or requisition the item. This appendix lists expendable supplies and materials you will need to purge and charge fire control instruments. liquid. item . MIL-R-46082.. These items are authorized to you by CTA 50-970. a description to identify the item. Gas form. INTRODUCTION B-1.Item number. b. EXPLANATION OF COLUMNS.Description. Grade N. pr). “Use sealing compound. if required. Grade B. The last line for each item indicates the Contactor and Government Entity Code (CAGEC) in parentheses followed by the part number. 44 x 32 inches Nitrogen. (80064). Column (2) . Expendable Items (Except Medical. oil–free.g. Indicates the Federal item name and. l–gallon container: (81348) P-S-624 (4) U/M BX CF 3 1240-01-189-4372 8030-00-900-2373 I QT OZ 8030-01-166-0575 6 8030-00-275-8114 8520-00-228-0598 I 7 GL B-1 (B-2 blank) .. plastic. 1941316 Soap. Primer (05972). Class 1 Lubricant (18876). c. Section II. This measure is expressed by a two-character alphabetical abbreviation (e. Form R. Indicates the measure used in performing the actual maintenance function. Grade F MIL-S-46162. toilet. Column (4) ... polysulfide base.National Stock Number. BB-N-411. Column (1) .. d. Class V.Unit of Measure (U/M). adhesive. 567-47 Sealing Compound. ea. Type 1.. technical. SCOPE. This number is assigned to the entry in the listing and is referenced in the narrative instructions to identify the material (e. appendix B“). a.. and Heraldic Items). 764-55 Sealing Compound (05972). Grade N. type 1.TM 750-116 APPENDIX B EXPENDABLE SUPPLIES AND MATERIALS LIST Section I. If the unit of measure differs from the unit of issue. EXPENDABLE SUPPLIES AND MATERIALS LIST (2) NATIONAL STOCK NUMBER 1 2 8105-00-150-6256 6830-00–782-2641 (3) DESCRIPTION Bag. noncuring.g. MILS-22473.. MIS-23546 Sealing Compound. requisition the lowest unit of issue that will satisfy your requirements. (81348). in. B-2. This is the National stock number assigned to the item. general purpose. Column (3) . . Machine 8-32UNC. Machine 40-UNC-2A. Machine 10-32UNC. Screw. Screw. Machine 4-40UNC. Screw. Machine 6-32UNC. Machine 6-32UNC. Machine 1/8 NPT. Screw. Machine 10-32UNF. Screw. Screw. Machine 8-36UNF. Machine 8-32UNC. OUTLET PORT SCREWS AND PLUGS. Socket Head 10-32UNF. Screw. Machine Length (inches) 5/16 3/8 1/4 1/4 3/8 3/8 1/8 1 3/8 1/8 1/4 1/4 1/4 1/8 1/2 1/4 3/1 6 3/1 6 1/4 3/16 5/16 3/8 1/4 1/4 1/4 3/8 3/4 I C . COMMON TOOLS AND EQUIPMENT. Screw.1 . Screw. Screw. Machine 10-24UNC. Self-locking 8-32UNC. Screw. Setscrew 10-24UNF. Machine 6-4OUNC. Machine 10-24UNC. Machine 10-24UNC. Screw. Machine 24UNC.TM 750-116 APPENDIX C ADDITIONAL SUPPLIES C-1. Select replacement hardware by determining the thread size and depth of the port requiring hardware. Screw. Table C-1 lists replacement self-sealing screws and plugs for outlet ports. C-2. Screw. Shoulder 4-4OUNC. Machine 8-32UNC. Self-Sealing Outlet Screws and Plugs Part No. required to perform the operations described in this manual refer to the Modified Table of Organization and Equipment (MTOE) applicable to your unit. Pipe 4-4OUNC. Screw. For authorized common tools and equipment. 5305-00-639-7518 5305-00-011-0499 5305-00-738-0624 5305-00-433-3707 5305-00-855-2989 5305-00-085-4056 5305-00-724-3439 5305-00-068-8202 5305-00-543-2753 5305-00-939-9219 4730-00-01 8–9566 5305-00-054-5647 5305-00-050-9225 5305-0>964-0310 5305-00-003-7126 5305-00-010-0697 5305-00-997-4604 5305-00-085-3706 5305-00-606-8179 5305-00-955-2941 5305-00-41 9–3378 5305-00-740-8890 5305-01-057-9300 5305-00-1 82–7302 5305-00-524-0709 5305-00-245-5157 5305-00-111 –5540 Thread 4-4OUNC. Machine 4-4OUNC. Screw. Table C-1. Screw. Cap. Plug. Screw. Screw. AN505-4R5 FFS92 MS3212-1 MS3212-21 MS3212-31 MS3212-39 MS5103-33 MS I 6996-40 MS35266-61 MS35375-239 MS49005-2 MS51957-13 MS51957-59 MS51958-24 0228372 100697 10541671 105551 57–1 105551 57–2 10555157-4 10555157-6 10555157-7 105551 57–8 105551 57–11 105551 57–14 11737540-2 11737718 National Stock No. Machine 6-32UNC. Screw. Screw. Screw. Screw. Screw. Machine 10-32UNF. Machine 8-32UNC. Screw. Machine 6-32UNC. Machine 4-4OUNC. 5 psig Cap Strap Nut. Self-locking Length (inches) 1/4 3/8 1 1/4 3/16 3/8 C-4. Machine 10-32UNC. PNEUMATIC VALVES. Screw.TM 750-116 Table C-1. Self-locking 8-32UNC. Self-Sealing Outlet Screws and Plugs (continued) 8574881 8624877 8626469 8643632 5305-00-684-4401 5305-00-857-5190 5305-00-959-6865 5305-00-930-1808 3/8-32UNF. Machine Thread 8-32UNC. Table C-2 lists replacement screws for purging inlet ports. Screw Cap. Screw. Table C-3 lists replacement pneumatic valves for inlet and outlet ports. Screw. Select replacement hardware by determining the thread size and depth of the port requiring hardware. Socket Head 8-32UNC. Screw. Inlet Part Number MS3212-21 MS3212-31 MS16996-40 8624877 11737540-1 11737540-2 National Stock Number 5305-00-433-3707 5305-00-855-2989 5305-00-068-8202 5305-00-857-5190 5305-00-262-0077 5305-00-245-5157 Thread 8-32UNC. Self–locking 10-32UNF. Select replacement hardware by determining the thread size and depth of the port requiring hardware. Pneumatic Valves Assemblies/Components Part Number MS51607-1 MS51377-2 MS20813-1 SM-C-805978-1 SM-C-805845 10556186 8200055 10516567 11737597 National Stock Number 1240-00-114-1096 2640-00-060-3543 2644-00-222-4525 4820-00-427-5047 5885-01-063-1403 4820-01-053-0223 2640-00-507-9260 1240-00-464-4792 5310-00-096-9728 Description Valve Stem Valve Core Cap Schroeder Schroeder Relief. Screw. INLET PORT SCREWS. Machine 10-24UNC. Screw. Screw. Self-Sealing Screws. Machine 6-32UNC. plain hexagon C-2 . Screw. Plug. Table C-2. Table C-3. Machine 1/6 1/4 5/32 1/4 C-3. Table C-4. 5705438. this kit is part of Service Kit. NSN 3640-01-117-7942. Table C-4 lists the parts kits to be used for specific applications. For M1A1 Tank. NSN 2540-01-255-3347. Part No. Laser. this kit is part of Service Kit. PARTS KITS. Parts Kits Part Number 5705155* National Stock Number 1240–01–114-3070 Application Laser Rangefinder for M1/M1A1 Tank *For M1 Tank. Laser. Part No.TM 750-116 C-5. C-3 (C-4 blank) . 5705137. . . . . . . .A-l I Inlet Port Screws . . . . . . . . B-1 F Field Manuals . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . and Features . . . . . . . 3-2 Applicable Publications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Alinement M139/M140 . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maintenance . . . . .A-1 Forms. . . . . . . . . . . . . . . . . . . . .TM 750-116 INDEX SUBJECT A Additional Supplies . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-2 M Maintenance Forms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8 M30C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . M19 . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . References . . . . . . . . . . . . . . . . Electronic. . . . . . . . . . .3-6 M149/M149El . . . . . . . . . . . . . . . . . . . . . .3-8 M32E1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-9 PAGE Index 1 . . . . . . . . . Records and Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6 M187 . . . . . . . . 3-2 Bleed Down of Purging and Charging Equipment . . 1-2 D Destruction of Army Materials to Prevent Enemy Use . . . . . . . . . . . . . . . . . . M65 Battery Commander’s . . . . . . . . . . . . . . . . . 3-3 Common Tools and Equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1 Computer. . . . . . . . . . . . . . .3-6 M145/M145Al . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Telescope M137 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1 Forms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5 M26A1/M27Al Muzzle . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . and Reports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Capabilities. . . . . . . . . . . . . . 3-5 E Equipment Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . .3-7 O Outlet Port Screws and Plugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Device. . Tank M28C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1 Aiming Circle. . . . . . . . . . . . . . . .. . 3-3 Corrosion Prevention and Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M2A2 . . . . . . . . . . . . . . . . . . M21. . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . .. . List of. . . . . . . . . . . . . . . . 2-2 C Collimator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Expendable Supplies and Materials . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Boresight M26/M27 . . . . . . .C-3 Periscope. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7 Periscopes. . . . . . . . . . . . . . . . . . . . . . .C-l P Parts Kits . . . . Records. . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1 Mounts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M1A1 . . . . . . . . . A-1 B Binocular. . . 3-5 Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2 Outlet Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M901 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Publications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21 Commander’s Relay Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M44A4 . . . . . . . . . . . M44A3 . . . . . . . . . . . . . . M17C References . M47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M44A1E1 . . . . . . 1-1 Screws Inlet Port . . . . . . . . . . . . . . . . . . . . . . 2-2 Sights BFV Tow/Tow2 Subsystem. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . Q Quadrants M14 . . . . . . . . . . . . . . . . . . . . . . . . . M17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1 Setup of Purging and Charging Equipment . . M48 . . . . . . . . . . . . . . . . . . . . . Reporting Equipment Improvement Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TM 750-116 INDEX – Continued SUBJECT Periscopes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M36 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M14A1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21 Integrated Sight Unit . . . . . . . . M15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M981 . . . . . . . . . . . . . . . . . . . M42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M44A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M44A2E1 . . . . . . . . . . . . . . . . . . Pnuematic Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25 Gunner’s Auxiliary Sight PN 12278900 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24 Commander’s Extension. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23 M44C Infinity . . . . . . . . . . . . . . . . . . . . . . . . 3-21 Backup Sight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Purging and Charging Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M36E1 . . . . . . . . . . . . . . . . . . . . . S Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M17B1C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M17A1. . . . . . . . . . . . . . . . and Handling . . . . 3-22 8635466 Infinity . . . . . 3-24 Control Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .continued M32CE1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AN/VVG-2 Laser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24 M61 Computing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M44A2 . . . M35E1 . . . . . . . . . . . . . . . . . . . . . . . . . Care. . . PN 12285300 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . R Rangefinders Laser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25 3-18 3-19 3-20 A-1 1-1 3-17 3-17 3-17 3-18 3-18 PAGE 3-10 3-10 3-11 3-12 3-12 3-13 3-13 3-14 3-15 3-15 3-15 3-15 3-15 3-16 3-17 C-2 A-2 2-3 Index 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-28 M114A1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . PN 12549761-3. . . . . .3-31 M137A1 . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25 Tank Thermal Sight . ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . 3-28 M118 Series . . . . . . . . . . . . . . . . . . .3-28 M139 . . . . . . Articulated M105D . . . . . . .3-29 Ml15 . . . . . . . . . . . . . . . . . . . . .3-32 M981 FISTV . . . . . . . . .3-27 M127A1 . . . . .A-l Telescopes. .3-30 M137 . . . . ... . . . . . . . . . . . . . . .TM 750-116 INDEX . . . . . . . . . . . . .. . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Receiver/Transmitter . . . . . . . . . . . . . . . . . . . . . . .continued Gunner’s Primary Sight PN 12282140. . . PN 1254976 1-2. . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-28 M16 and M116 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-33 Test Set. . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . .3-34 V Valves. . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . Elbow M114 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-29 M113 and M113A1 . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-33 Time Cycles . . . . . . . . . . . . . . . . . . . . . . . . . .3-33 Telescopes. . . . . . . . . . . Pneumatic . . . . . . . . . . . . . . . . . . . . . . . . .. .3-28 Telescopes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-27 M105F . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-29 M12A7S . . . . .3-34 U Unit. . . . . . . . . . M55 Laser . .2-3 Trainer. . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-26 Weapon Sight PN 12279200 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PN 9377279-2 . . . . . . . .. . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Straight M90A2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Panoramic M12A7Q . . . .. . . . . . .. . . .3-29 M117/M117A1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . .3-28 M138 . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-2 Index 3 (Index 4 blank) . . . . . . . . . . . . . . . . . . .3-31 M901A1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . .3-27 Telescopes. . . . . . . . . .3-33 M134 . . . .3-27 Supply Catalogs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Continued SUBJECT PAGE Sights . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reticle Projector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-2 T Technical Manuals . . . . . . . . . . . . . . . . . . . . . .3-27 M127 . . . . . . . . . . . . . . . . . . . . . . . HAMILTON Administrative Assistant to the Secretary of the Army 03954 DISTRIBUTION: To be distributed in accordance with DA Form 12-34-E. *U.By Order of the Secretary of the Army: GORDON R SULLIVAN General.S.300-421/82036 . United States Army Chief of Staff Official: MILTON H. requirements for TM 750-116. GOVERNMENT PRINTING OFFICE: 1994 . Block 0899. . . . . . . . . . PIN : 012697-000 .
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