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2. WAR DEPARTMENT TECHNICAL MANUAL *TM 9-801RESTRICTEDTRUCK, 2V2-TON, 6x6(CMC CCKW-352 and 353)WAR DEPARTMENT24 APRIL 1944* This manual, together with TM 9-1801 and TM 9-1802A, supersedes thefollowing manuals:TM 10-1105, 18 Jul 1941 TM 10-1269, 19 Jan 1942TM 10-1147, 26 Aug 1941 TM 10-1501, 12 Jul 1941TM 10-1253, 8 Oct 1941 TM 10-1563, 1 Jul 1942In addition, this manual supersedes the following:TM 9-801, 12 Apr 1943 OFSTB 10-1501-1, 6 Apr 1943OFSTB 801-1, 6 Apr 1943 OFSTB 801-4, 24 Jan 1943OFSTB 10-1147-1, 6 Apr 1943It also supersedes applicable portions of the following:OFSTB 800-15, 14 Jul 1943 TB ORD 26, 9 Feb 1944TB ORD 13, 12 Jan 1944 TB ORD 32, 18 Feb 1944TB ORD 20, 24 Jan 1944Generated on 2013-07-24 08:02 GMT / http://hdl.handle.net/2027/uc1.b3243761Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google 3. WAR DEPARTMENTWashington 25, D.C., 24 April 1944TM 9-801, 2V2-ton 6x6 Truck (CMC CCKW-352 and 353) is pub-lishedfor the information and guidance of all concerned.[A.G. 300.7 (20 Nov 43) ]BY ORDER OF THE SECRETARY OF WAR:G. C. MARSHALL,Chief of Staff.OFFICIAL:J. A. ULIO,Major General,The Adjutant General.DISTRIBUTION: D 7 (5); B 18 (2); R 9 (4); Bn 2,4,5,6,7,8,9,17,18, 44 (2); C 9 (8); 1C 2,4,6,7,8,10,17,18,44 (2).f(For explanation of symbols, see FM 21-6.)/ vGenerated on 2013-07-24 08:02 GMT / http://hdl.handle.net/2027/uc1.b3243761Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google 4. TM 9-801U//3TRUCK, 2*-TON, 6 x 6(CMC CCKW-352 & 353)CONTENTSPART ONE GENERALParagrophs .PagesSECTION I. Introduction .................. 1-2 5-6II. Description and tabulated data .. 3-5 6-19III. Tools, parts, and accessories ..... 6-10 20-27PART TWO-OPERATING INSTRUCTIONSIV. Controls and instruments ....... 11-15 28-35V. Operation under usual conditions 16-23 35-54VI. Operation of auxiliary equipment 24-28 54-69VII. Operation under unusual condi-tions....................... 29-35 69-79PART THREE MAINTENANCE INSTRUCTIONSVIII. Lubrication ................... 36-37 80-98IX. New vehicle run-in test ......... 38-40 99-103X. First echelon preventive mainte-nanceservice ............... 41-45 103-114XI. Second echelon preventivemaintenance ................ 46 114-137XII. Power plant trouble shooting anddiagnosis ................... 47-59 137-150XIII. Power train and miscellaneoustrouble shooting and diagnosis . 60-74 150-161XIV. Engine description, data, mainte-nance,and adjustment onvehicle ..................... 75-82 161-177XV. Engine removal and installation . 83-85 178-186XVI. Ignition system ............... 86-90 186-196XVII. Fuel and air intake system ...... 91-101 196-215Generated on 2013-07-24 08:02 GMT / http://hdl.handle.net/2027/uc1.b3243761Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google 5. TM 9-801CONTENTSSECTION Paragraphs PagesXVIII. Exhaust system 102-105 215-219XIX. Cooling system 106-112 220-230XX. Starting system 113-115 230-233XXI. Generating system 116-118 233-238XXII. Battery and lighting system. . . . 119-125 238-249XXIII. Wiring, harnesses, and circuits.. . 126-128 249-260XXIV. Radio noise suppression system. . 129-134 260-272XXV. Instruments, gages, and switches. 135-148 272-283XXVI. Clutch and controls 149-152 284-288XXVII. Transmission 153-155 288-292XXVIII. Power take-off and controls 156-158 292-301XXIX. Transfer case and control 159-162 301-309XXX. Front axle 163-169 309-320XXXI. Rear axles 170-174 321-325XXXII. Propeller shafts, universal joints,and pillow block 175-177 325-329XXXIII. Service brake system 178-191 329-361XXXIV. Hand brake system 192-196 361-366XXXV. Wheels, tires, and hubs 197-202 366-386XXXVI. Steering system 203-207 386-392XXXVII. Front and rear spring suspension. 208-213 392-403XXXVIII. Frame 214-219 404-412XXXIX. Cab and associated parts 220-224 412-418XL. Sheet metal 225-228 419-424XLI. Cargo and dump bodies 229-232 424-431XLII. Gasoline and water tank bodies. . 233-234 431-440XLIII. Winch and controls 235-242 440-448XLIV. Power hoist and controls 243-249 448-463APPENDIXXLV. Shipment and temporary storage.250-252 463-469XLVI. References 253-255 469-471Index 472-480.4.Generated on 2013-07-24 08:03 GMT / http://hdl.handle.net/2027/uc1.b3243761Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google 6. TM 9-8011-2PART ONEGENERALSection IINTRODUCTION1. SCOPE.a. These instructions are published for the information andguidance of the personnel to whom this equipment is assigned. Theycontain information on the operation and maintenance of the Truck,2 Vi-Ton, 6x6, CMC CCKW-352 "and 353, as well as descriptions ofthe major units and their functions in relation to the other com-ponentsof this vehicle.b. This manual has the following arrangement:(1) Part One, General, contains description and data. It liststhe tools, spare parts, and equipment carried on the vehicle. It alsolists organizational special tools for this vehicle.(2) Part Two, Operating Instructions, contains instructions forthe operation of the vehicle with description and location of thecontrols and instruments.(3) Part Three, Maintenance Instructions, contains informa-tionneeded for the performance of the scheduled lubrication andpreventive maintenance services, and instructions for maintenanceoperations which are the responsibility of the using organizations(first and second echelons). Stock numbers in this part were ob-tainedfrom the Organizational Spare Parts and Equipment List ofSNL G-5Q8, 29 December 1943.(4) The Appendix contains instructions for shipment and tem-porarystorage, and a list of references including standard nomen-claturelists, technical manuals, and other publications applicableto the vehicle.2. RECORDS.a. Forms and records applicable for use in performing pre-scribedoperations are listed below with brief explanations of each.(1) STANDARD FORM No. 26, DRIVER'S REPORTACCIDENT,MOTOR TRANSPORTATION. One copy of this form will be kept withthe vehicle at all times. In case of an accident resulting in injury orproperty damage, it will be filled out by the driver on the spot or aspromptly as practical thereafter.(2) WAR DEPARTMENT FORM No. 48, DRIVER'S TRIP TICKETGenerated on 2013-07-24 08:03 GMT / http://hdl.handle.net/2027/uc1.b3243761Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-googleAND PREVENTIVE MAINTENANCE SERVICE RECORD. This form, prop-erlyexecuted, will be furnished to the driver when his vehicle isdispatched on non-tactical missions. The driver and the official userof the vehicle will complete in detail appropriate parts of this form.These forms need not be issued for vehicles in convoy or on tacticalmissions. The reverse side of this form contains the driver's dailyand weekly preventive maintenance service reminder schedule.(3) W.D., A.G.O. FORM No. 478, MWO AND MAJOR UNIT AS-SEMBLYREPLACEMENT RECORD. This form will be used by all per-sonnelcompleting a modification or major unit assembly (engine, 7. TM 9-8012-3TRUCK, 2V2-TON, 6x6transmission, transfer case, and tracks) replacement to recordclearly the description of work completed, date, vehicle hours,and/or mileage, and MWO number or nomenclature of unit as-sembly.Personnel performing the operation will initial in the columnprovided. Minor repairs, parts, and accessory replacements will notbe recorded.(4) W.D., A.G.O. FORM No. 6, DUTY ROSTER. This form, slightlymodified, will be used for scheduling and maintaining a record of ve-hiclemaintenance operations. It may be used for lubrication records.(5) W.D., A.G.O. FORM No. 461, PREVENTIVE MAINTENANCESERVICE AND TECHNICAL INSPECTION WORK SHEET FOR WHEELEDAND HALF-TRACK VEHICLES. This form will be used for all 1,000-mile (monthly) and 6,000-mile (semi-annual) maintenance servicesand all technical inspections performed on wheeled or half-trackvehicles.(6) W.D., O.O. FORM No. 7353, SPOT-CHECK INSPECTION RE-PORTFOR ALL MOTOR VEHICLES. This form may be used by allcommanding officers or their staff representatives in making spot-checkinspection on all vehicles.(7) W.D., A.G.O. FORM No. 468, UNSATISFACTORY EQUIPMENTRECORD. This form will be used for reporting manufacturing, design,or operational defects in material with a view to improving andcorrecting such defects, and for use in recommending modificationsof material. This form will not be used for reporting failures, isolatedmaterial defects, or malfunctions of material resulting from fairwear and tear or accidental damage, nor for the replacement, repair,or the issue of parts and equipment. It does not replace currentlyauthorized operational or performance records.(8) W.D., O.O. FORM No. 7370, EXCHANGE PART OR UNITIDENTIFICATION TAG. This tag, properly executed, may be usedwhen exchanging unserviceable items for like serviceable assemblies,parts, vehicles, and tools.Section IIDESCRIPTION AND TABULATED DATA3. DESCRIPTION.a. General. Vehicles described in this manual are designatedGenerated on 2013-07-24 08:03 GMT / http://hdl.handle.net/2027/uc1.b3243761Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-googleas TRUCK, IVi-ton, 6x6, CMC CCKW-352 and 353. The vehiclesare equipped with one driving front axle and two driving rear axles,.and six driving wheels. Conventionally mounted open type cab isused on all vehicles with either cargo, cargo-dump, gasoline tank, orwater tank body. In addition to special purpose use, depending upontype of body, vehicles may also be used for towing tractors, guns, andother wheeled equipment.b. General Characteristics.(1) POWER PLANT. Six-cylinder, in-line, valve-in-head engine 8. TM 9-8013DESCRIPTION AND TABULATED DATALEFT FRONT VIEWRIGHT REAR VIEWSTRAIGHT FRONT VIEWDA PD 332854Figure 1 CCKVV-352 (Short Wheelbase) with Carga Bodyand WinchLess Tarpaulin7Generated on 2013-07-24 08:04 GMT / http://hdl.handle.net/2027/uc1.b3243761Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google 9. TM 9-8013TRUCK, 2V2-TON, 6x6LEFT REAR VIEWLEFT FRONT VIEWSTRAIGHT FRONT VIEWRA PD 332891Figure 2CCKW-353 (Long Wheelbase) with Cargo Bodyand WinchTarpaulin Installed8Generated on 2013-07-24 08:04 GMT / http://hdl.handle.net/2027/uc1.b3243761Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google 10. TM 9-8013DESCRIPTION AND TABULATED DATAis three-point mounted at front end of chassis frame. Conventionalaccessories such as generator, cranking motor, distributor, oil filter,carbureter, air cleaner, clutch, etc., are attached to engine proper.Transmission, mounted to rear end of engine, has five speeds forwardand one reverse, with direct drive in fourth speed and over-drive infifth. Clutch is single dry-plate type attached directly to flywheel.(2) AXLES, SUSPENSION, AND STEERING. Three driving axlesare full-floating and may be either split or banjo type. Front axle in-corporatesspecial universal joints at the steering knuckles whichpermit steering of vehicle in conventional automotive manner. Sus-pensionof axles from chassis frame is with semi-elliptic springs, withtorque rod connections used at rear axles. Each front spring is at-tachedto conventional two-channel type frame by a shackle at frontend, and a bracket at rear end. Each rear spring is supported at thecenter on cross shaft bearings. Ends of rear springs are fitted intoguides at wheel ends of rear axles.(3) BRAKES. Service brakes are vacuum operated hydraulictype, operating two mechanical brake shoes at each wheel. Hydraulicmaster cylinder, operated by foot brake pedal, actuates Hydrovacpower cylinder, which in turn transmits hydraulic pressure to wheelcylinders to apply brakes. Band type hand brake assembly is mount-edon output shaft at rear of transfer case. Conventional latch typehand brake lever operates brake through rods and linkage for emer-gencystops, or to hold vehicle while parking.(4) POWER DRIVE UNITS. Two-speed transfer case permits driveby rear axles, or front and rear axles, depending upon position ofmanual shift levers. Axles are driven through conventional typepropeller shafts from transfer case. Power take-off for winch andhoist operation (when used) is mounted on left side of transmission,and drives these auxiliary units through universal joint type driveshafts.(5) WINCH. The winch, when supplied, is mounted at front endof vehicle, and is driven through drive shaft by transmission powertake-off.(6) CAB. The two-man cab consists of a metal open top en-closurearound driver's compartment. Cab is equipped with wind-shield,Generated on 2013-07-24 08:05 GMT / http://hdl.handle.net/2027/uc1.b3243761Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-googletarpaulin and hinged side curtains, and provision for gunmount ring.(7) BODY TYPES.(a) Cargo (figs. 1 and 2). Wood type cargo body, equipped withtroop seats, cargo racks, bows, and top tarpaulin, may be mountedon either long wheelbase (CCKW-353) or short wheelbase (CCKW-352) chassis.(b) Cargo Dump (fig. 3). Metal type cargo dump body, equippedwith troop seats, cargo racks, bows, and top tarpaulin, is mountedonly on long wheelbase (CCKW-353) chassis with winch. Hydraulichoist, mounted on subframe, raises body to dumping position.(c) Gasoline Tank Body (fig. 4). Metal gasoline tank body, con-sistingof two 375 gallon tanks, is mounted only on long wheelbase(CCKW-353) chassis. Tank is equipped with dump valves and 11. TM 9-8013TRUCK, 2V2-TON, 6x6, IRA PD 64759Figure 3CCKW353 (Long Wheelbase) with CargoDump BodyLess Tarpaulinsimilar equipment. Chassis upon which gasoline tanks are mountedare not equipped with winches or pintle hooks.(d) Water Tank Body (fig. 5). Metal water tank body of 700gallon capacity is mounted only on long wheelbase (CCKW-353)chassis. Tank body is equipped with auxiliary gasoline engine andpump unit, control valves, portable heating unit, and heating con-nectionsto chassis exhaust pipe system. Chassis upon which watertank bodies are mounted are not equipped with winches or pintlehooks.(e) Special Purpose Bodies. Either long wheelbase or shortwheelbase chassis (CCKW-353 or 352) with or without winch, maybe used with special purpose bodies such as van, water purification,10Generated on 2013-07-24 08:05 GMT / http://hdl.handle.net/2027/uc1.b3243761Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google 12. TM 9-8013DESCRIPTION AND TABULATED DATALEFT VIEWRIGHT REAR VIEWSTRAIGHT REAR VIEWRA PD 332881Figure 4CCKW-353 (Long Wheelbase) with Gasoline TankBodyLess Camouflage Equipment11Generated on 2013-07-24 08:05 GMT / http://hdl.handle.net/2027/uc1.b3243761Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google 13. TM 9-8013f.TRUCK, 21/2-TON, 6x6LEFT FRONT VIEWRIGHT REAR VIEWSTRAIGHT REAR VIEWRA PD 332868Figure 5CCKW-353 (Long Wheelbase) with Water TankBodyLess Camouflage Equipment12*Generated on 2013-07-24 08:06 GMT / http://hdl.handle.net/2027/uc1.b3243761Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google 14. TM 9-8013-4DESCRIPTION AND TABULATED DATAEARLY MODEL-. f GENERAL. MOTOfU 1U^/NOMENCLATURE -TRUCK 2 TON 6X0 [^ SUPPLY SERVICE MAINTAINING VEHICLEORDNANCE DEPARTMENTMAKE AND MODEL - GMC-CCKW-333MFG'S. SERIAL NO. -VEHICLE WT. UNLOADEDMAX. PAY LOADMAX. GROSS WT.CONCERNEDPRESCRIBED BY SERVICEOCTANE RATING OF GASOLINE - T0 MINS.A.E. GRADE OF OIL BELOW 32* r - OE 103.AE. GRADE OF OIL ABOVE 32*F-OE30GMC TRUCK A COACH DIVISIONGENERAL MOTORS CORPORATIONPONTIAC. MICHIGAN'RING MOUNTt)RIMC MOUNTwOVERALL LENGTHOVERALL WIDTHOVERALL HEIGHTLOWEST OPERABLE HEIGHTSHIPPING CUBICSHApING TONNAGE'LATE MODELFigure 6Vehicle Nomenclature PlatesRA PD 332860oil service, shop, topophoto, and air compressor. These bodies are notdescribed in this manual.4. DIFFERENCES AMONG MODELS.a. Model Designation. Model designation symbols, togetherGenerated on 2013-07-24 08:06 GMT / http://hdl.handle.net/2027/uc1.b3243761Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-googlewith suffix letters and numbers, are stamped on nomenclature plate(fig. 6). These identification letters and numbers are all that arenecessary to identify the vehicle as to wheelbase, type of axle, bodytype, and whether or not it is equipped with a winch. The numeralsappearing after the model designation and the equipment suffix rep-resentthe chassis serial number. The nomenclature plate used onlate vehicles contains information pertinent to shipping (fig. 6). Thefollowing table itemizes and explains the vehicle identification sym-bols.VEHICLE IDENTIFICATIONSymbolsGMC ModelSuffixWheelboserypeTypCCKW-352Al145-inchsplitcargoCCKW-352Bl145-inchsplitcargoCCKW-352A2145-inchbanjocargo 15. TM 9-8014TRUCK, 21/2-TON, 6x6VEHICLE IDENTIFICATION fCont.)SymbolsEquipmentSuffixChassisWheelbaseCMC Made/CCKW-353A2164-inchCCKW-353Bl164-inchCCKW-353B2164-inchCCKW-353Dl164-inchCCKW-353D2164-inchCCKW-353Al164-inchCCKW-353G2164-inchCCKW-353HI164-inchCCKW-353H2164-inchExplanation of SymbolsAxle BadyType Type Winchbanjo cargo nonesplit cargo yesbanjo cargo yessplit gas tank nonebanjo gas tank nonesplit water tank nonebanjo water tank nonesplit dump yesbanjo dump yesBANJO TYPE AXLESPLIT TYPE AXLERA PD 64499Figure 7Axle Hausing Identificationb. Axle Housing Types. Vehicles may be equipped with eithersplit type (indicated by suffix numeral 1) or banjo type (indicatedby suffix numeral 2). These axle housing types can be identified asillustrated in figure 7.c. Spare Tire and Vehicle Gas Tank Location.(1) SHORT WHEELBASE (CCKW-352). Spare tire and wheelcarrier, and gasoline tank on short wheelbase chassis (CCKW-352)are mounted across chassis frame at rear of cab.(2) LONG WHEELBASE (CCKW-353). On long wheelbasechassis with cargo or cargo dump body only, spare wheel and tireare mounted under body on frame left side rail. The gasoline tank ismounted on frame right side rail immediately forward of forwardrear wheel. On long wheelbase chassis with gas or water tank body,the spare wheel and tire are mounted on frame back of cab, whilevehicle fuel tank location remains the same as on conventional longwheelbase chassis.14*Generated on 2013-07-24 08:06 GMT / http://hdl.handle.net/2027/uc1.b3243761Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google 16. TM 9-8014DESCRIPTION AND TABULATED DATAENGINE SERIAL NUMBERON RIGHT SIDE OF BLOCK*ENGINE SERIAL NUMBERON LEFT SIDE OF BLOCKPUBLICATIONS APPLYING TO THIS VEHICLEOPERATORS MANUAL TM 9-801MAINTENANCE MANUAL TM 9-1801PARTS LIST SNL-G-508PUBLICATIONS PLATERA PD 332890Figure 8Engine Serial Number and Publication Platesd. Engine Serial Number and Plate (fig. 8). This plate in-cludesengine serial number, cylinder bore, piston stroke, and numberof cylinders. Plate is attached to left side of engine crankcase. Engineserial number is also stamped on right side of engine crankcase neardistributor.e. Publication Plate (fig. 8). This plate includes TM numbersof technical manuals and parts list to use with vehicle. Plate is lo-catedon dash panel above package compartment.f. Water Tank and Gasoline Tank Body Camouflage (fig. 9).Some vehicles, equipped with water tank or gasoline tank bodies,are provided with bows and tarpaulins to serve as camouflage. Withtarpaulin installed, vehicles have the appearance of cargo bodies.15*Generated on 2013-07-24 08:07 GMT / http://hdl.handle.net/2027/uc1.b3243761Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google 17. TM 9-8014TRUCK, 2'/2-TON, 6x6WATER TANK WITH TARP BOWSWATER TANK WITH TARP INSTALLEDGAS TANK WITH TARP BOWSRA PD 332944Figure 9Tarpaulin Camouflage Equipment farWater or Gasoline Tank Body5. TABULATED DATA.a. Engine Specifications (All Vehicles).Type Valve-in-headNumber of cylinders 6 in-lineHorsepower (S.A.E.) 34.35Displacement (Cu in.) 269.5Bore (in.) 325/32Stroke (in.) 4Engine governed speed (rpm) 2,75016Generated on 2013-07-24 08:07 GMT / http://hdl.handle.net/2027/uc1.b3243761Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google 18. TM 9-8015DESCRIPTION AND TABULATED DATAS t|. 10 o .0O CMn (.1. CM S)0 . 0r-l IO'. ^S o. o cJio . CMCO CM CO - CO f CM O "^ '00ys vi o vIr- 3' O"iIO . O O O r ~IO 00 uJ h *OO^ . t^* IO CO COO -t" ^i*: *: v? 'lOTT t-T vTvi CO CMoa- ^H pi" ? O OO O O O O O 1010 10 o O O O r^Tf O Ol IO O IO 01
