Downloaded from on 2012-10-29T18:40:10.ARMY TM 9-2320-272-10AIR FORCE TO 36A12-1C-441TECHNICAL MANUALOPERATOR’S MANUALFORTRUCK, 5-TON, 6X6, M939,M939A1, AND M939A2SERIES TRUCKS (DIESEL)TRUCK, CARGO: 5-TON, 6X6 DROPSIDE, M923(2320-1-050-2084) (EIC: BRY); M923A1 (2320-01206-4087) (EIC:BSS); M923A2 (2320-01-230-0307) (EIC: BS7);M925 (2320-01-047-8769) (EIC: BRT); M925A1(2320-01-206-4088) (EIC:BST); M925A2 (2320-01-230-0308) (EIC: BS8);TRUCK, CARGO: 5-TON, 6X6 XLWB, M927(2320-01047-8771) (EIC: BRV); M927A1 (232001-206-4089), (EIC: BSW); M927A2 (2320-01-2300309) (EIC: BS9); M928 (2320-01-047-8770) (EIC:BRU); M928A1 (2320-01-206-4090) (EIC: BSX);M928A2 (2320-01-230-0310) (EIC: BTM);TRUCK, DUMP: 5-TON, 6X6, M929 (2320-01478756)(EIC: BTH); M929A1 (2320-01-206-4079) (EIC:BSY);M929A2 (2320-01-230-0305) (EIC: BTN); M930(2320-01-047-8755) (EIC: BTG); M930A1 (232001-206-4080), (EIC: BSZ); M930A2 (2320-01-2300306) (EIC: BTO);TRUCK, TRACTOR: 5-TON, 6X6, M931 (2320-01047-8753)(EIC: BTE); M931A1 (2320-01-206-4077) (EIC:BS2);M931A2 (2320-01-230-0302) (EIC: BTP); M932(2320-01-047-8752) (EIC: BTD); M932A1 (232001-205-2684) (EIC: BS5); M932A2 (2320-01-2300303) (EIC: BTQ);TRUCK, VAN, EXPANSIBLE: 5-TON, 6X6, M934(2320-01-047-8750) (EIC: BTB); M934A1 (232001-205-2682) (EIC: BS4); M934A2 (2320-01-2300300) (EIC: BTR);TRUCK, MEDIUM WRECKER: 5-TON, 6X6, M936(2320-01-047-8754) (EIC: BTF); M936A1 (232001-206-4078) (EIC:BS6); M936A2 (2320-01-230-0304) (EIC: BTT).TABLE OF CONTENTSiiHOW TO USE THIS MANUALiiiINTRODUCTION1-1OPERATING INSTRUCTIONS2-1PREVENTIVE MAINTENANCE CHECKS ANDSERVICES (PMCS)2-28MAINTENANCE INSTRUCTIONS3-1TROUBLESHOOTING PROCEDURES 3-2REFERENCESA-1COMPONENTS OF END ITEM(COEI) AND BASIC ISSUEITEMS (BII) LISTSB-1ADDITIONAL AUTHORIZAIONLISTS (AAL)C-1EXPENDABLE/DURABLE SUPPLIESAND MATERIALS USTD-1STOWAGE AND SIGN GUIDEE-1DISTRIBUTION STATEMENT A Approved for public release; distribution is unlimited.HEADQUARTERS, DEPARTMENT OF THE ARMYAND THE AIR FORCEAUGUST 15, 1996

Downloaded from on 2012-10-29T18:40:10.TM 9-2320-272-10TO 36A12-1C-441C1TECHNICALMANUALNo. 9-2320-272-10DEPARTMENTS OF THE ARMYAND THE AIR FORCEWASHINGTON, D.C. 22 Feb 1999OPERATOR’S MANUALFORTRUCK, 5-TON, 6X6, M939,M939A1 AND M939A2 SERIES (DIESEL)TRUCK, CARGO: 5-TON, 6X6, DROPSIDE,M923 (2320-01-050-2084), M923A1 (2320-01-206-4087), M923A2 (2320-01-230-0307).M925 (2320-01-047-8769). M925A1 (2320-01-206-4088), M925A2 (2320-01-230-0308);TRUCK, CARGO: 5-TON. 6X6,M924 (2320-01-047-8773), M924A1 (2320-01-205-2692),M926 (2320-01-047-8772), M926A1 (2320-01-205-2693);TRUCK, CARGO: 5-TON, 6X6, XLWB,M927 (2320-01-047-8771), M927A1 (2320-01-206-4089). M927A2 (2320-01-230-0309),M928 (2320-01-047-8770), M928A1 (2320-01-206-4090), M928A2 (2320-01-230-0310);TRUCK, DUMP: 5-TON, 6X6,M929 (2320-01-047-8756), M929A1 (2320-01-206-4079), M929A2 (2320-01-230-0305),M930 (2320-01-047-8755), M930A1 (2320-01-206-4080). M930-A2 (2320-01-230-0306);TRUCK, TRACTOR: 5-TON, 8X6,M931 (2320-01-047-8753), M931A1 (2320-01-206-4077), M931A2 (2320-01-230-0302),M932 (2320-01-047-8752), M932A1 (2320-01-205-2684), M932A2 (2320-01-230-0303);TRUCK, VAN, EXPANSIBLE: 5-TON, 6X6,M934 (2320-01-047-8750), M934A1 (2320-01-205-2682), M934A2 (2320-01-230-0300);M935 (2320-01-047-8751, M935A1 (2320-01-205-2683), M935A2 (2320-01-230-0301);TRUCK, MEDIUM WRECKER: 5-TON, 6X6,M936 (2320-01-047-8754), M936A1 (2320-01-206-4078). M936A2 (2320-01-230-0304)This change is issued in conjunction with Safety of Use Message (SUOM). TACOM Control No. 98-07. It emphasizessafe driving procedures to be followed by M939 vehicle operators.TM 9-2320-272-10. August 1996, is changed as follows:Remove old pages 1-23, 1-24 and 2-105, 2-106 and insert provided pages with same numbering.DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited

Downloaded from on 2012-10-29T18:40:10.By Order of the Secretary of the Army:DENNIS J. REIMERGeneral, United States ArmyChief of StaffAdministrative Assistant to theSecretary of the Army05676By Order of the Secretary of the Air Force:RONALD R. FOGLEMANGeneral, United States Air ForceChief of StaffOfficial:HENRY VICCELLIO, JR.General, United States Air ForceCommander, Air Force Materiel CommandDISTRIBUTION:To be distributed in accordance with the initial distribution number (IDN)380385, requirements for TM 9-2320-272-10.

Downloaded from on 2012-10-29T18:40:10.TM 9-2320-272-10WARNINGEXHAUST GASES CAN KILL1. NOT operate your vehicle engine in enclosed area.DO NOT idle vehicle engine with vehicle windows closed.DO NOT drive vehicle with inspection plates or cover plates removed.BE ALERT at all times for exhaust odors.BE ALERT for exhaust poisoning symptoms. They are: 6.HeadacheDizzinessSleepinessLoss of muscular controlIF YOU SEE another person with exhaust poisoning symptoms: Remove person from areaExpose to open airKeep person warmDo not permit person to moveAdminister artificial respiration* or CPR, if necessaryFor artificial respiration, refer to FM 21-11.7. BE AWARE, the field protective mask for Nuclear-Biological-Chemical (NBC) protection will not protect you fromcarbon monoxide poisoning. THE BEST DEFENSE AGAINST EXHAUST POISONING IS ADEQUATE VENTILATION.WARNINGHIGH INTENSITY NOISEHearing protection is required for all personnel working in and around this vehicle while the engine isrunning (reference AR 40-5 and TB MED 501).Warning a

Downloaded from on 2012-10-29T18:40:10.TM 9-2320-272-10WARNING SUMMARY If Nuclear, Biological, or Chemical (NBC) exposure is suspected, all air filter media should be handled by personnelwearing protective equipment. Consult your unit NBC officer or NBC NCO for appropriate handling or disposalinstructions. Extreme care should be taken when removing surge tank filler cap if temperature gauge reads above 175 F (79 C).Steam or hot coolant under pressure will cause injury. Pump brakes gradually when slowing or stopping vehicle on ice, snow, or wet pavement. Sudden stop will causevehicle wheels to lock, engine to stall, and loss of power steering. Failure to do this will result in injury or death. Ground spike must be driven into ground 18-24 inches (46-61 centimeters) and spike cable connected to the chassisbefore power can be taken from outside source. Failure to do this will result in electrical damage, injury, or death. Ensure spike cable ring terminal makes good contact with bare metal. If necessary, scrape contact area clean of dirt,paint, or rust. Failure to do this will result in electrical damage, injury, or death. Vehicle will become charged with electricity if A-frame contacts or breaks high voltage wire. Do not leave vehicle whilehigh voltage line is in contact with A-frame or vehicle. Failure to do this will result in injury or death. Notify nearbypersonnel to have electrical power turned off. Do not put vehicle in motion until warning light is extinguished, and alarm (buzzer) stops sounding. If air pressuregauges indicate less than 90 psi (621 kPa), turn ignition and battery switches to OFF positions, and notify unitmaintenance. Failure to do this will result in injury or death. Alcohol used in alcohol evaporator is flammable, poisonous, and explosive. Do not smoke when adding fluid and donot drink fluid. Failure to do this will result in injury or death. Stay clear of dump body and cab protector at all times during loading and unloading operations. Dump body canunexpectedly raise when a heavy load is dropped into dump body and will cause injury or death. Do not smoke, have open flames, or make sparks around the batteries, especially if the caps are off. They can explodeand cause injury or death. Do not lower load without a ground guide. Direct all personnel to stand clear of lifting operations. Swinging loads willcause injury or death. Do not perform fuel system checks or inspection while smoking or near fire, flames, or sparks. Fuel could ignite,causing damage to vehicle, injury, or death. This vehicle has been designed to operate safely and efficiently within the limits specified in this TM. Operation beyondthese limits is prohibited IAW AR 70-1 without written approval from the Commander, U.S. Army Tank-automotive andArmaments Command, ATTN: AMCPEO-CM-S, Warren, MI 48397-5000. When brakes are applied, the hand throttle does not automatically disengage.Warning b

Downloaded from on 2012-10-29T18:40:10.ARMY TM 9-2320-272-10AIR FORCE TO 36A12-1C-441TECHNICAL MANUALNO. 9-2320-272-10HEADQUARTERS,DEPARTMENT OF THE ARMYANDTHEAIRFORCEWashington DC, 15August 1996TECHNICAL ORDERNO. 36A12-1C441OPERATOR’S MANUALFORTRUCK, 5-TON, 6X6, M939, M939A1, ANDM939A2 SERIES TRUCKS (DIESEL)TRUCKCargo, DropsideCargo, DropsideCargo, DropsideCargo, DropsideCargo, DropsideCargo, ctorVan, ExpansibleVan, ExpansibleVan, ExpansibleMedium WreckerMedium WreckerMedium WreckerMODELEICNSN 230-0307NSN -047-87542320-01-206-40782320-01-230-0304i

Downloaded from on 2012-10-29T18:40:10.TM 9-2320-272-10REPORTING OF ERRORS AND RECOMMENDING IMPROVEMENTSYou can help improve this manual. If you find any mistakes or if you know of a way to improve the procedures, please letus know. Mail your letter, DA Form 2028 (Recommended Changes to Publications and Blank Forms), or DA Form 2028-2located in back of this manual direct to: Commander. U.S. Army Tank-automotive and Armaments Command, ATTN:AMSTA-IM-OPIT, Warren, Michigan 48397-5000. A reply will be furnished to you.DISRTRRUTION STATEMFENT A - Approved for public release; distribution is unlimited.PageHOW TO USE THIS MANUAL .iiiCHAPTER 1.INTRODUCTION .1-1Section I.II.III.CHAPTER 2.General Information .1-1Equipment Description and Data .1-8Principles of Operation .1-27OPERATING INSTRUCTIONS .2-1Section I.Description and Use of Operator’s Controls and Indicators .2-1II.PREVENTIVE MAINTENANCE CHECKS.2-28AND SERVICES (PMCS)III.IV.V.Operation Under Usual Conditions .2-100Operation Under Unusual Conditions .2-201Operation of Special Purpose kits .2-217CHAPTER 3.MAINTENANCE INSTRUCTIONS.3-1Section I.Lubrication Instructions .3-1II.TROUBLESHOOTING PROCEDURES .3-2III.Maintenance Procedures .3-23APPENDIX A.REFERENCES .A-1APPENDIX B.COMPONENTS OF END ITEM (COEI) AND .B-1BASIC ISSUE ITEMS (BII) LISTSAPPENDIX C.ADDITIONAL AUTHORIZATION LIST (AAL) .C-1APPENDIX D.EXPENDABLE/DURABLE SUPPLIESAND MATERIALS LIST .D-1APPENDIX E.STOWAGE AND SIGN GUIDE .E-1ii

Downloaded from on 2012-10-29T18:40:10.TM 9-2320-272-10HOW TO USE THIS MANUAL1.2.3.4.The information contained in this manual can be accessed in several ways.a. If you know what area you are looking for, us the front cover index. Find the appropriate box and match it to theblackened pages on the side of the book, or use the page number listed in the box.b. If you are looking for a specific paragraph, refer to the index at the back of the manual.This manual consists of:a. Chapter 1, Introduction - provides inf

technical manual no. 9-2320-272-10 headquarters, department of the army technical order andtheairforce no. 36a12-1c441 washington dc, 15august 1996 operator’s manual for truck, 5-ton, 6x6, m939, m939a1, and m939a2 series trucks (diesel) truck model eic nsn (wo/winch) nsn (w/winch) cargo, dropside m923 bry 2320-01-050-2084