C H A P T E R    1    . I N T R O D U C T I ON5-TON, 6X6, CARGO TRUCK, DROPSIDE WO/W AND W/W (M813A1) (RIGHT REAR VIEW)5-TON, 6X6, CARGO TRUCK, EXTENDED CARGO BODY WO/W AND W/W (M814) (RIGHT FRONT VIEW)5-TON, 6X6, MEDIUM WRECKER TRUCK W/W (M816) (LEFT REAR VIEW)5-TON, 6X6, TRACTOR TRUCK WO/W AND W/W (M818) (RIGHT FRONT VIEW)5-TON, 6X6, EXPANSIVE VAN TRUCK WO/W  (M820) (LEFT FRONT VIEW)5-TON, 6X6, BRIDGE TRANSPORTING  TRUCK WO/W (M821) (RIGHT REAR  VIEW)FORMS   AND   RECORDSTable 1-1. Vehicle Class Information. LIST OF  ABBREVIATIONS   (Contd)MILITARY   TERMS   AND   COMMOM   TERMS CROSS   REFERENCE   LIST   (Contd)CARGO   TRUCKS   W/W   AND   WO/W: M813,   M813A1,   AND   M814CARGO TRUCK, DROPSIDE (M813A1) (RIGHT REAR VIEW)BOLSTER   LOGGING   TRUCK   W/W:   M815MEDIUM   WRECKER   TRUCK   W/W:   M816DUMP   TRUCK   W/WAND   WO/W:   M817TRACTOR   TRUCK   W/W   AND   WO/W:   M818TRACTOR   WRECKER   TRUCK   W/W:   M819EXPANSIBLE   VAN   TRUCK   WO/W: M820,   M820A1,   AND   M820A2 EXPANSIBLE   VAN   TRUCK   WO/W:   M820, M820A1,   AND   M820A2   (Contd) BRIDGE   TRANSPORTING   STAKE   TRUCK   WO/W:   M821Tabulated   DataTable 1-3. Weights.Table 1-5. Capacities.Table 1-7. Chassis Dimensions. Table 1-9. Performance Data.Table 1-11. Engine Downshift RPM DataSection  III.  TECHNICAL  PRINCIPLES  OF  OPERATIONElectrical   System   OperationTM-9-2320-260-10_40Service  Brake  System  OperationC H A P T E R    2 O P E R A T I N G    I N S T R U C T I O N SCHASSIS   CONTROLS   AND   INDICATORSHigh beam indicator lampPrimer pressure gage  Primer pump controlCowl ventilator control handleClutch pedal Steering wheelFront winch drum lock knobOil filler capFuel tank filler capBODY   EQUIPMENT   CONTROLS   AND   INDICATORSBolster Logging Truck (M815) (Contd).Medium Wrecker (M816) and Tractor Wrecker (M819) (Contd)Boom control leverShipper brace retaining bracket - TM-9-2320-260-10_58Dipstick Fifth wheel locking plunger leverDump Truck (M817).Bridge Stake Truck (M821)Expansible Van (M820, M820A1, M820A2).Power input receptacleCircuit breaker panelWindow  regulatorLadders stored on liftgatePhone jack receptacle Locking plungersSPECIAL PURPOSE KITS CONTROLS AND INDICATORSArctic Winterization Kit (Contd).Hardtop closure replaces Deepwater Fording Kit - TM-9-2320-260-10_73Hot Water Personnel Heater KitA-Frame  Kit.Section   II.   PREVENTIVE   MAINTENANCE   CHECKS AND   SERVICESTable 2-1. General Cleaning Instructions - TM-9-2320-260-10_77Table 2-1. General Cleaning Instructions - TM-9-2320-260-10_78CLASS   LEAKAGE   DEFINITIONSTable 2-2. Operator/Crew Preventive Maintenance Checks and ServicesOperator/Crew Preventive Maintenance Checks and Services (Contd) - TM-9-2320-260-10_81Operator/Crew Preventive Maintenance Checks and Services (Contd) - TM-9-2320-260-10_82Operator/Crew Preventive Maintenance Checks and Services (Contd) - TM-9-2320-260-10_83Operator/Crew Preventive Maintenance Checks and Services (Contd) - TM-9-2320-260-10_84Operator/Crew Preventive Maintenance Checks and Services (Contd) - TM-9-2320-260-10_85Operator/Crew Preventive Maintenance Checks and Services (Contd) - TM-9-2320-260-10_86Operator/Crew Preventive Maintenance Checks and Services (Contd) - TM-9-2320-260-10_87Operator/Crew Preventive Maintenance Checks and Services (Contd) - TM-9-2320-260-10_88Operator/Crew Preventive Maintenance Checks and Services (Contd) - TM-9-2320-260-10_89Operator/Crew Preventive Maintenance Checks and Services (Contd) - TM-9-2320-260-10_90Operator/Crew Preventive Maintenance Checks and Services (Contd) - TM-9-2320-260-10_91Operator/Crew Preventive Maintenance Checks and Services (Contd) - TM-9-2320-260-10_92Operator/Crew Preventive Maintenance Checks and Services (Contd) - TM-9-2320-260-10_93Operator/Crew Preventive Maintenance Checks and Services (Contd) - TM-9-2320-260-10_94Operator/Crew Preventive Maintenance Checks and Services (Contd) - TM-9-2320-260-10_95Operator/Crew Preventive Maintenance Checks and Services (Contd) - TM-9-2320-260-10_96Operator/Crew Preventive Maintenance Checks and Services (Contd) - TM-9-2320-260-10_97Operator/Crew Preventive Maintenance Checks and Services (Contd) - TM-9-2320-260-10_98Operator/Crew Preventive Maintenance Checks and Services (Contd) - TM-9-2320-260-10_99Operator/Crew Preventive Maintenance Checks and Services (Contd) - TM-9-2320-260-10_100Operator/Crew Preventive Maintenance Checks and Services (Contd) - TM-9-2320-260-10_101Operator/Crew Preventive Maintenance Checks and Services (Contd) - TM-9-2320-260-10_102Operator/Crew Preventive Maintenance Checks and Services (Contd) - TM-9-2320-260-10_103Operator/Crew Preventive Maintenance Checks and Services (Contd) - TM-9-2320-260-10_104Operator/Crew Preventive Maintenance Checks and Services (Contd) - TM-9-2320-260-10_105Operator/Crew Preventive Maintenance Checks and Services (Contd) - TM-9-2320-260-10_106Operator/Crew Preventive Maintenance Checks and Services (Contd) - TM-9-2320-260-10_107Operator/Crew Preventive Maintenance Checks and Services (Contd) - TM-9-2320-260-10_108Operator/Crew Preventive Maintenance Checks and Services (Contd) - TM-9-2320-260-10_109Operator/Crew Preventive Maintenance Checks and Services (Contd) - TM-9-2320-260-10_110Operator/Crew Preventive Maintenance Checks and Services (Contd) - TM-9-2320-260-10_111Operator/Crew Preventive Maintenance Checks and Services (Contd) - TM-9-2320-260-10_112Operator/Crew Preventive Maintenance Checks and Services (Contd) - TM-9-2320-260-10_113S e c t i o n    I I I .    O P E R A T I O N    U N D E R    U S U A L    C O N D I T I O N SSTARTING   THE   ENGINE   (ABOVE   +32F)   (0C) -contCOLD  WEATHER  STARTING  (BELOW  +32F)  (0C)COLD  WEATHER  STARTING  (BELOW  +32F)  (0C) -contOPERATION   OF   VEHICLE   SERVICE   LIGHTSPLACING  AND  SUSTAINING  VEHICLE  IN  MOTION PLACING  AND  SUSTAINING  VEHICLE  IN  MOTION  -contDriving vehicle down steep gradesSTOPPING   THE   VEHICLE   AND   ENGINESTOPPING   THE   VEHICLE   AND   ENGINE -contBACKING   THE   VEHICLE USING   SLAVE   RECEPTACLE   TO   START   ENGINE RAISING   AND   SECURING   HOOD RAISING   AND   SECURING   HOOD  -contSEAT  BELT  OPERATION  (FIXED  SEAT  AND FLOATING   SEAT)VEHICLE   TOWINGTowing Vehicle With Towbar to Start Engine -contFailure to completely turn off air shutoff valvesTowing with Chain or Cable to Start Engine. Flat-Towing With Towbar.Lift-Towing With Wrecker. Lift-tow  operationsLift-Towing With Wrecker.  -contINSTALLING   CAB   TOP   AND   RAISING   WINDSHIELDINSTALLING   CAB   TOP   AND   RAISING   WINDSHIELD -contOPERATION   OF   FRONT   WINCH Unwinding Winch Cable.Unwinding Winch Cable. -contPulling or Lifting Load.Stopping WinchPreparing Winch for Travel. -contOPERATION   OF   CARGO   TRUCKSRemoving Front and Side RacksInstalling Front and Side Racks. Loose Projectile Restraint SystemOPERATION   OF   BOLSTER   TRUCKS   AND   TRAILERSUnloading Bolster Trailer from Bolster Truck -cont - TM-9-2320-260-10_151Unloading Bolster Trailer from Bolster Truck -cont - TM-9-2320-260-10_152Unloading Bolster Trailer from Bolster Truck -cont - TM-9-2320-260-10_153Preparing Bolster Truck and Trailer for loading Cargo. I.oading or Unloading Bolster Truck and Trailer. Loading Bolster Trailer on Bolster TruckBolster sliding chocks Loading Bolster Trailer on Bolster Truck -cont - TM-9-2320-260-10_158Loading Bolster Trailer on Bolster Truck -cont - TM-9-2320-260-10_159Tiedown chain secures trailerOPERATION   OF   MEDIUM   WRECKER   REAR   WINCH Rear Winch Operation. -contUnwinding the Winch Cable.For night operationKeep tension on winch cableRigging the Load.Pulling the LoadPulling the Load -contStopping the Winch.Preparation for Travel.Preparation for Travel. -cont - TM-9-2320-260-10_171Preparation for Travel. -cont Preparation for Travel. -cont - TM-9-2320-260-10_173OPERATION   OF   DUMP   TRUCKTable 2-3. Typical Material Weights (Contd)Before Operation. Before Operation.  -cont Loading the Truck. Loading the Truck. -contUnloading the Truck by DumpingUnloading the Truck by Dumping -cont - TM-9-2320-260-10_181Unloading the Truck by Dumping -cont - TM-9-2320-260-10_182Unloading the Truck by Rocker-Type OperationUnloading the Truck by Rocker-Type Operation -contUnloading the Truck by SpreadingUnloading the Truck by Spreading -cont - TM-9-2320-260-10_186Unloading the Truck by Spreading -cont - TM-9-2320-260-10_187OPERATION   OF   TRACTOR   AND   TRACTOR   WRECKER FIFTH  WHEELCoupling   the   Semitrailer.Connect service airbrake Coupling   the   Semitrailer. -cont - TM-9-2320-260-10_191Coupling   the   Semitrailer. -cont - TM-9-2320-260-10_192Uncoupling the Semitrailer. OPERATION   OF   WRECKER   CRANEOperation of Wrecker Crane (M816). -cont - TM-9-2320-260-10_195Operation of Wrecker Crane (M816). -cont - TM-9-2320-260-10_196Operation of Wrecker Crane (M816). -cont - TM-9-2320-260-10_197Lifting the Load,Lifting the Load, -contLifting and Swinging the LoadHeavy Rear Lifting. 3Heavy Rear Lifting.  -contHeavy Side Lifting. Preparing for Travel. -cont - TM-9-2320-260-10_204Preparing for Travel. -cont - TM-9-2320-260-10_205Preparing for Travel. -cont - TM-9-2320-260-10_206Operation of Wrecker Crane (M819)During crane operationLifting and Swinging the Load. -contPositioning the Crane Supports.Positioning the Crane Supports. -cont - TM-9-2320-260-10_211Positioning the Crane Supports. -cont - TM-9-2320-260-10_212Positioning the Crane Supports. -cont - TM-9-2320-260-10_213Extending and Retracting Boom ExtensionPreparation for Travel Without Semitrailer.Preparation for Travel With Semitrailer. OPERATION   OF   EXPANSIBLE   VAN   TRUCKS aLeveling Van BodyLeveling Van Body -contExpanding Van Body. Expanding Van Body.  -cont - TM-9-2320-260-10_221Expanding Van Body.  -cont - TM-9-2320-260-10_222Electric auxiliary cableOperating Van Electrical System. Operating Van Heaters. -cont Operating Van Air ConditionerBlackout Operations -contOperating Power Liftgate (M820A2 Only)Retracting Van Body. Retracting Van Body.  -cont - TM-9-2320-260-10_230Retracting Van Body.  -cont - TM-9-2320-260-10_231Retracting Van Body.  -cont - TM-9-2320-260-10_232OPERATION   OF   BRIDGE   TRANSPORTING   TRUCK Loading the Truck Using Crane.Loading the Truck ManuallyLoading the Truck Manually -cont - TM-9-2320-260-10_236Loading the Truck Manually -cont - TM-9-2320-260-10_237Tie Down of Loaded Material.Preparation for UnloadingPreparation for Unloading -contUnloading Truck Using Crane.Unloading Truck Manually. Section   IV.   OPERATION   UNDER   UNUSUAL   CONDITIONSOPERATING   IN   EXTREME   COLDDriving Vehicle.After Operation.OPERATING   IN   SNOWAfter OperationDriving Vehicle. Radiator fan and engine coolantOPERATING   IN   DUSTY,   SANDY   AREASOPERATING   UNDER   RAINY   OR   HUMID   CONDITIONSOPERATING   IN   DEEP   MUDOPERATING   IN   SALT   WATERFording Operation in Salt Water - TM-9-2320-260-10_255Fording Operation in Salt Water - TM-9-2320-260-10_256Section   V.   OPERATION   OF   AUXILIARY   EQUIPMENT (SPECIAL   PURPOSE   KITS)OPERATING   DEEPWATER   FORDING   KITFording Operation. - TM-9-2320-260-10_259BOW   AND   TARP   KITBow and Tarp Kit Installation -contRaising Paulin for VentilationRaising Paulin for Ventilation -cont - TM-9-2320-260-10_263Raising Paulin for Ventilation -cont - TM-9-2320-260-10_264Racks, seats, bows, and covers of troop seat and cover kitHOT   WATER   PERSONNEL   HEATER   KITOperating Winterfront Cover.ARCTIC   WINTERIZATION   KITOperating Fuel Burning Personnel Heater. If heater fails to startOperating Fuel Burning Engine Coolant HeaterOperating Fuel Burning Engine Coolant Heater -cont - TM-9-2320-260-10_272Operating Fuel Burning Engine Coolant Heater -cont - TM-9-2320-260-10_273Operating Slave Receptacle. OPERATING  A-FRAME  KIT OPERATING   WINDSHIELD   WASHER   KITTroop Seat Kit Installation.AIRBRAKE   HAND   CONTROL   KIT - TM-9-2320-260-10_278AIRBRAKE   HAND   CONTROL   KIT - TM-9-2320-260-10_279Uncoupling  Trailer  from  Vehicle. C H A P T E R    3     M A I N T E N A N C E     I N S T R U C T I O N S GENERAL   LUBRICATING   INSTRUCTIONS   UNDER UNUSUAL   CONDITIONS Section   III.   TROUBLESHOOTINGTable 3-1. Troubleshooting Troubleshooting -cont - TM-9-2320-260-10_285Troubleshooting -cont - TM-9-2320-260-10_286Troubleshooting -cont - TM-9-2320-260-10_287Troubleshooting -cont - TM-9-2320-260-10_288Troubleshooting -cont - TM-9-2320-260-10_289Troubleshooting -cont - TM-9-2320-260-10_290Troubleshooting -cont - TM-9-2320-260-10_291Troubleshooting -cont - TM-9-2320-260-10_292Troubleshooting -cont - TM-9-2320-260-10_293Section   IV.   MAINTENANCE   PROCEDURESCoolant Surge Tank.Priming Fuel SystemAir Cleaner Service.A I R    R E S E R V O I R SOIL   RESERVOIR   BREATHER   CAP   SERVICE   (M819)WHEELS   AND   TIRES Spare Wheel Removal and Replacement (M819). Spare Wheel Removal and Replacement (M816)Spare Wheel Removal and Replacement (M821)Jacking  ProcedureReplacementTIRE   INFLATION  Tire InflationWINCH   SHEARPIN   REPLACEMENTA P P E N D I X    A     R E F E R E N C E SAPPENDIX   A   (Contd)A P P E N D I X    B C O M P O N E N T S    O F    E N D    I T EM AND   BASIC   ISSUE   ITEMS   LISTSUsable On Code.  ABBREVIATIONSSection  II.  COMPONENTS  OF  END  ITEM  LISTSection  III.  BASIC  ISSUE  ITEMS  LISTBASIC   ISSUE   ITEMSBASIC   ISSUE   ITEMS   (Contd) - TM-9-2320-260-10_317BASIC   ISSUE   ITEMS   (Contd) - TM-9-2320-260-10_318BASIC   ISSUE   ITEMS   (Contd) - TM-9-2320-260-10_319BASIC   ISSUE   ITEMS   (Contd) - TM-9-2320-260-10_320BASIC   ISSUE   ITEMS   (Contd) - TM-9-2320-260-10_321BASIC   ISSUE   ITEMS   (Contd) - TM-9-2320-260-10_322BASIC   ISSUE   ITEMS   (Contd) - TM-9-2320-260-10_324BASIC   ISSUE   ITEMS   (Contd) - TM-9-2320-260-10_325BASIC   ISSUE   ITEMS   (Contd) - TM-9-2320-260-10_326BASIC   ISSUE   ITEMS   (Contd) - TM-9-2320-260-10_327BASIC   ISSUE   ITEMS   (Contd) - TM-9-2320-260-10_328BASIC   ISSUE   ITEMS   (Contd) - TM-9-2320-260-10_329BASIC   ISSUE   ITEMS   (Cont'd) - TM-9-2320-260-10_330BASIC   ISSUE   ITEMS   (Cont'd) - TM-9-2320-260-10_331BASIC   ISSUE   ITEMS   (Cont'd) - TM-9-2320-260-10_332BASIC   ISSUE   ITEMS   (Cont'd) - TM-9-2320-260-10_333BASIC   ISSUE   ITEMS   (Cont'd) - TM-9-2320-260-10_334BASIC   ISSUE   ITEMS   (Cont'd) - TM-9-2320-260-10_335BASIC   ISSUE   ITEMS   (Cont'd) - TM-9-2320-260-10_336BASIC   ISSUE   ITEMS   (Cont'd) - TM-9-2320-260-10_337BASIC   ISSUE   ITEMS   (Cont'd) - TM-9-2320-260-10_338A P P E N D I X    C A D D I T I O N A L    A U T H O R I Z A T I O N    L I STADDITIONAL    AUTHORIZATION    LISTADDITIONAL   AUTHORIZATION   LIST   (Contd) - TM-9-2320-260-10_341ADDITIONAL   AUTHORIZATION   LIST   (Contd) - TM-9-2320-260-10_342A P P E N D I X    D E X P E N D A B L E / D U R A B L E    S U P P L I ES A N D    M A T E R I A L S    L I STEXPENDABLE/DURABLE  SUPPLIES  AND  MATERIALS  LIST EXPENDABLE/DURABLE  SUPPLIES  AND  MATERIALS  LIST  (Cont'd) - TM-9-2320-260-10_345EXPENDABLE/DURABLE  SUPPLIES  AND  MATERIALS  LIST  (Cont'd) - TM-9-2320-260-10_346EXPENDABLE/DURABLE  SUPPLIES  AND  MATERIALS  LIST  (Cont'd) - TM-9-2320-260-10_347EXPENDABLE/DURABLE  SUPPLIES  AND  MATERIALS  LIST  (Cont'd) - TM-9-2320-260-10_348A P P E N D I X    E S T O W A G E    A N D    S I G N    G U I D E    F O R C O M P O N E N T S    O F    E N D    I T E M, BASIC   ISSUE   ITEMS,   AND   APPLICABLE ADDITIONAL    AUTHORIZATION    LIST    ITEMSSTOWAGE   LOCATIONS   (Contd)  - TM-9-2320-260-10_350STOWAGE   LOCATIONS   (Contd)  - TM-9-2320-260-10_351STOWAGE   LOCATIONS   (Contd)  - TM-9-2320-260-10_352I N D E X INDEX   (Contd) - TM-9-2320-260-10_354INDEX   (Contd) - TM-9-2320-260-10_355INDEX   (Contd) - TM-9-2320-260-10_356INDEX   (Contd) - TM-9-2320-260-10_357INDEX   (Contd) - TM-9-2320-260-10_358INDEX   (Contd) - TM-9-2320-260-10_359INDEX   (Contd) - TM-9-2320-260-10_360INDEX   (Contd) - TM-9-2320-260-10_361INDEX   (Contd) - TM-9-2320-260-10_362INDEX   (Contd) - TM-9-2320-260-10_363INDEX   (Contd) - TM-9-2320-260-10_364INDEX   (Contd) - TM-9-2320-260-10_365INDEX   (Contd) - TM-9-2320-260-10_366INDEX   (Contd) - TM-9-2320-260-10_367INDEX   (Contd) - TM-9-2320-260-10_368INDEX   (Contd) - TM-9-2320-260-10_369INDEX   (Contd) - TM-9-2320-260-10_370INDEX   (Contd) - TM-9-2320-260-10_371