1. w^0)fOWAR BEPARflirm,TECHNICAL MANUAL45-TONTANK TRANSPORTERTRUCK-TRAILERM19DEPARTMENT . 25 OCTOBER 1944Generated on 2013-06-15 11:18 GMT / http://hdl.handle.net/2027/uc1.b3243754Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google

2. WAR DEPARTMENT TECHNICAL MANUALTM 9-768This manual supersedes:a. WDTB ORD 91, dated 13 May 1944, and WDTB ORD 103, dated 10 June 1944.b. OFSTB 811-1 and 10-1255-1, dated 22 October 1943 insofar as it applies to this manual.Together with TM 9-811, dated 25 January 1944, this manual completely supersedes OFSTB811-1 and 10-1255-1.c. The following publications insofar as they apply to this manual. These publicationsremain in force until such time as they are incorporated in other affected manuals orspecifically rescinded: OFSTB 800-21, dated 30 November 1943; OFSTB 1700-32, 1800-3,and 10-1000-22, dated 8 July 1943; WDTB ORD 60, dated 13 March 1944: WDTB ORD74, dated 8 July 1943; WDTB ORD 126, dated 19 July 1944; WDTB ORD 20, dated24 January 1944.d. The following 10-series Technical Manuals insofar as they apply to this manual: TM 10-1225, dated 25 October 1941; TM 10-1242, dated 15 August 1942; TM 10-1242 (revised),dated 15 February 1944; TM 10-1255, dated 6 July 1942; and TM 10-1322, dated 3November 1941. The above 10-series manuals remain in effect until they are incorporatedin TM 9-1768A, TM 9-1768B, TM 9-1768C, and SNL G-159, at which time they will becompletely superseded.45-TONTANK TRANSPORTERTRUCK-TRAILERM19WAR DEPARTMENT 25 OCTOBER 1944RESTRICTED DISSEMINATION OF RESTRICTED MATTERThe information contained in restricted documents and the essential char-acteristicsof restricted material may be given to any person known to be inthe service of the United States and to persons of undoubted loyalty anddiscretion who are cooperating in Government work, but will not be com-municatedto the public or to the press except by authorized military publicrelations agencies. (See also paragraph 23b, AR 380-5, 15 March 1944.)Generated on 2013-06-15 11:20 GMT / http://hdl.handle.net/2027/uc1.b3243754Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google 3. WAR DEPARTMENTWashington 25, D. C, 25 October 1944TM 9-768,45-ton Tank Transporter Truck-trailer M19, is publishedfor the information and guidance of all concerned.tA.G. 300.7 (2 Jun 44) IO.O.M. 461/Rar. Ars. (10-27-44) JBY ORDER OF THE SECRETARY OF WAR:G. C. MARSHALL,Chief of Staff.OFFICIAL:J. A. ULIO,Major General,The Adjutant General.DISTRIBUTION: Armies (10); Corps (10); SvC (10); Depts (10);IBn 9 (2); 1C 9, 17 (3); Chief of Tech Svs (2); Gen& Sp Sv Schools (10); Ord Decentralized Sub-O (3);PE's "Mark for Ord O" (5); H & R Points (5); OrdDist O (5); Ord Regional O (3); Ord Dist Br O (3);Ord Establishments (5); Ord Tk Dep (3).IBn 9T/O 9-65, 9-75, 9-315, 9-325.1C 9T/O 9-7, 9-9, 9-37, 9-67, 9-76, 9-127,9-187, 9-197, 9-316, 9-318, 9-327, 9-328,9-377, 9-500.17T/O 17-2, 17-60-1.(For explanation of symbols, see FM 21-6.)t'''- Generated on 2013-06-15 11:20 GMT / http://hdl.handle.net/2027/uc1.b3243754Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google 4. U.1I3CONTENTS.7_PART ONE GENERAL**ParagraphsPag>SECTION I.Introduction1- 21- 3II.Description and data3- 43- 9III.Tools, parts and accessories ...5- 99- 16PARTTWO OPERATING INSTRUCTIONSSECTION IV.Driving controls and instru-ments10- 1117- 23V.Operation under ordinaryconditions12- 1423- 30VI.Operation of auxiliary equip-ment15- 1731- 36VII.Operation under unusual con-ditionsGenerated on 2013-06-15 11:21 GMT / http://hdl.handle.net/2027/uc1.b3243754Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google18- 2036- 44PART THREE MAINTENANCE INSTRUCTIONSSECTION VIII.Lubrication21- 2245- 65IX.New vehicle run in test23- 2565- 72-X.First echelon preventivemaintenance service26- 3072- 85XI.Second echelon preventivemaintenance '.3185-109XII.Trouble shooting32- 57109-135XIII.Engine description and main-tenancein vehicle58- 66136-151XIV. 5. PART THREEMAINTENANCE INSTRUCTIONS (Contd.)ParagraphsPagesSECTION XXII.Tachometer and speedometer119-120247-249XXIII.Engine oil system121-125249-254XXIV.Clutch126-131254-263XXV.Transmission132-135263-268XXVI.Auxiliary transmission136-139268-272XXVII.Power take-off140-143272-274XXVIII.Propeller shafts and universaljoint assemblies144-148275-281XXIX.Front axle assembly149-153281-285XXX.Rear axle assembly154-160Generated on 2013-06-15 11:22 GMT / http://hdl.handle.net/2027/uc1.b3243754Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google285-297XXXI.Truck service brake system . .161-179297-329XXXII.Parking brake system180-183329-334XXXIII.Truck wheels, hubs, wheelbearings, and tires184-186334-341XXXIV.Springs187-188341-344XXXV.Steering gear189-193345-350XXXVI.Cab, frame, and body194-208350-367XXXVII.Auxiliary equipment209-217367-375XXXVIII. 6. TM 9-7681RESTRICTEDThis manual supersedes:a. WDTB ORD 91, dated 13 May 1944, and WDTB ORD 103, dated 10 June 1944.b. OFSTB 811-1 and 10-1255-1, dated 22 October 1943 insofar as it applies to this manual.Together with TM 9-811, dated 25 January 1944, this manual completely supersedesOFSTB 811-1 and 10-1255-1.c. The following publications insofar as they apply to this manual. These publicationsremain in force until such time as they are incorporated in other affected manuals orspecifically rescinded: OFSTB 800-21, dated 30 November 1943; OFSTB 1700-32,1800-3, and 10-1000-22, dated 8 July 1943; WDTB ORD 60, dated 13 March 1944;WDTB ORD 74, dated 8 July 1943; WDTB ORD 126, dated 19 July 1944; WDTBORD 20, dated 24 January 1944.d. The following 10-series Technical Manuals insofar as they apply to this manual: TM10-1225, dated 25 October 1941; TM 10-1242. dated 15 August 1942; TM 10-1242(revised), dated 15 February 1944; TM 10-1255, dated 6 July 1942; and TM 10-1322,dated 3 November 1941. The above 10-series manuals remain in effect until they areincorporated in TM 9-1768A, TM 9-1768B, TM 9-1768C, and SNL G-159, at whichtime they will be completely superseded.PART 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 45-tonTank Transporter Truck-trailer Ml9, as well as descriptions of themajor units and their functions in relation to the other components ofthis vehicle.b. This manual has the following arrangement:(1) Part One, General, contains description and data. It lists thetools, spare parts, and equipment carried on the vehicle. It also listsorganization special tools for the vehicle.(2) Part Two, Operating Instructions, contains instructions forthe operation of the vehicle with description and location of the con-trolsand instruments.(3) Part Three, Maintenance Instructions, contains informationGenerated on 2013-06-15 11:23 GMT / http://hdl.handle.net/2027/uc1.b3243754Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-googleneeded for the performance of the scheduled lubrication and preven-tivemaintenance services, and instructions for maintenance oper-ationswhich are the responsibility of the using organizations (firstand second echelons). Stock numbers in this part were obtained fromthe Organizational Spare Parts and Equipment List of SNL G-159.*To provide operating instructions with the materiel, this technical manual has been publishedin advance of complete technical review. Any errors or omissions will be corrected by changes or,if extensive, by an early revision. 7. TM 9-7681-2General(4) The appendix contains instructions for shipment and limitedstorage, and a list of references which includes standard nomenclaturelists, technical manuals, and other publications applicable to thevehicle.2. RECORDS.a. Forms and records applicable for use in performing prescribedoperations 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 TICKETAND PREVENTIVE MAINTENANCE SERVICE RECORD. This form, properlyexecuted, will be furnished to the driver when his vehicle is dispatchedon nontactical missions. The driver and the official user of the vehiclewill complete in detail appropriate parts of this form. These formsneed not be issued for vehicles in convoy or on tactical missions. Thereverse side of this form contains the driver's daily and weekly pre-ventivemaintenance service reminder schedule.(3) W.D., A.G.O. FORM No. 478, MWO AND MAJOR UNIT ASSEM-BLYREPLACEMENT RECORD. This form will be used by all personnelcompleting a modification or major unit assembly (engine, transmis-sion,transfer case, and tracks) replacement to record clearly thedescription of work completed, data, vehicle hours, and/or mileage,and MWO number or nomenclature of unit assembly. Personnel per-formingthe operation will initial in the column provided. Minorrepairs, parts, and accessory replacements will not be 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 (semiannual) maintenance services and alltechnical inspections performed on wheeled or half-track vehicles.Generated on 2013-06-15 11:24 GMT / http://hdl.handle.net/2027/uc1.b3243754Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google(6) W.D., O.O. FORM No. 7353, SPOT-CHECK INSPECTION REPORTFOR ALL MOTOR VEHICLES. This form may be used by all command-ingofficers or their staff representatives in making spot-check inspec-tionson all vehicles.(7) W.D., A.G.O. FORM No. 468, UNSATISFACTORY EQUIPMENTREPORT. This form will be used for reporting manufacturing, design,or operational defects in materiel with a view to improving and cor- 8. TM 9-7682-3Description and Datarecting such defects, and for use in recommending modifications ofmateriel. This form will not be used for reporting failures, isolatedmateriel defects, or malfunctions of materiel resulting from fair wearand tear or accidental damage; nor for the replacement, repair, orthe issue of parts and equipment. It does not replace currently author-izedoperational or performance records.(8) W.D., O.O. FORM No. 7370, EXCHANGE PART OR UNITIDENTIFICATION TAG. This tag, properly executed, may be used whenexchanging unserviceable items for like serviceable assemblies, sub-assemblies,parts, vehicles, and tools.Section IIDESCRIPTION AND DATA3. DESCRIPTION (figs. 1,2, and 3).a. General. The 45-ton Tank Transporter Truck-trailer M19is a combination of two units, the 12-ton, 6x4 truck M20 and the45-ton, 12-wheel trailer M9. The unit is designed to recover and trans-portdamaged tanks and materiel weighing up to 90,000 pounds.b. Truck. The 12-ton, 6x4 truck M20 is a tandem-rear-axle, or6-wheel, truck equipped with a rear pintle for towing the M9 trailer.The cab is a closed type on some models and open type on others.A ballast body and a winch are installed on the chassis behind thecab. The winch is operated through a power take-off installed onthe auxiliary transmission and is controlled from outside the cabby means of an air-operated clutch control and remote throttle con-trol.Recovery and loading is accomplished by means of the winch.Additional wheel traction can be obtained by filling the ballast bodywith any available materials such as gravel or sand. The spare wheeland tire are mounted in the forward end of the ballast body, and twostowage boxes are located inside the body at the rear end. A fuel tankis installed on each side of the truck immediately behind the cab.The storage batteries and fuel gate valves are carried in a compart-menton each side under the cab doors. The truck is powered by aDiesel engine, which is equipped with a fuel oil burning heater tofacilitate cold weather starting.c. Trailer. The 45-ton, 12-wheel trailer M9 has a tandem axleat the rear which carries 8 dual wheels and a front axle which carriesGenerated on 2013-06-15 11:25 GMT / http://hdl.handle.net/2027/uc1.b3243754Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google4 dual wheels. A drawbar is provided for towing the trailer. The rearend of the trailer slopes down and two hinged ramps are provided to 9. TM 9.7683General821Generated on 2013-06-15 11:29 GMT / http://hdl.handle.net/2027/uc1.b3243754Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google 10. TM 9-7683Description and DataI>uOOSceIM-XUi1Generated on 2013-06-15 11:29 GMT / http://hdl.handle.net/2027/uc1.b3243754Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google 11. TM 9-7683GeneraII13IitoIGenerated on 2013-06-15 11:28 GMT / http://hdl.handle.net/2027/uc1.b3243754Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google 12. TM 9-7683-4Description aid DataNOMENCLATURE TRUCK. PRIME MOVER. 6X4MAKE AND MODEL DIAMOND-T MODELSERIAL NUMBERVEHICLE WEIGHT, UNLOADEDVEHICLE WEIGHT. LOADED NOMINALMAXIMUM TOWED LOADDATE OF DELIVERYRECOMMENDED BY MANUFACTURERTIRE INFLATION PRESSURES.A.E. GRADE OF OIL FOR SUMMER USES.A.E. GRADE OF OIL FOR WINTER USECHECK VISCOMETER FREQUENTLY AS45.000 LBS.115.0OO LBS.80 LBS. PER SO. IN.QRA PD 321327Figure 4Chassis Platefacilitate loading. The trailer is equipped with track guides, cabletroughs, rollers, and sheaves. Four chock blocks and various anchorchains are carried to secure the tank while it is being transported.The trailer is equipped with an air-brake system and a manual controlfor setting brakes independently of the truck. A stowage compartmentis located at the rear of the trailer.4. DATA.a. Truck With Trailer.Length, overall 52 ft 11% in.Weight, net 48,600 Ibb Truck.(1) GENERAL SPECIFICATIONS.Manufacturer Diamond TModel 980 or 981Wheelbase 14 ft I1y4 in.Length, over-all 23 ft 3% in.Width, over-all 8 ft 5V2 in.Height, over-all 8 ft 5 in.Generated on 2013-06-15 11:30 GMT / http://hdl.handle.net/2027/uc1.b3243754Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-googleWheel size 20 x 9-10 in.Tire size 12.00 x 20Tire type Mud and snow 13. TM 9-7684GeneralTread (center-to-center)front 75% in.rear 74 in.Crew 2Weight of vehiclenet 26,650 IbWeight of vehiclepayload 18,350 IbWeight of vehiclegross , 45,000 IbGround clearance:Front axle (loaded) 13%6 in.Rear axle" HVs in.Chassis" 18%6 in.Kind and grade of fuel 45 cetene Diesel fuel oilApproach angle 45 degDeparture angle 51 deg(2) FUEL, LUBRICATING, AND COOLING SYSTEM CAPACITIES.Transmission 18 ptAuxiliary transmission 17 ptRear axle differentials (each) 20 ptFuel tanks (total) 150 galCooling system 61 qtCrankcase 26 qtOil-bath air cleaners (each) 2 ptWinch 8 pt(3) PERFORMANCE (WITHOUT TRAILER ATTACHED).Maximum speed allowable 23 mphMinimum turning circle (dia.)right 65 ftleft 72 ftFording depth 38 in.Towing facilitiesfront 1 pintle, 2 air brake connectionsrear 1 pintle, 2 air brake connectionsMaximum towed load 115,000 IbMaximum grade ascending ability 25 petMaximum allowable engine speed 1,600 rpmMiles per gallon, average conditions with towed load 2Cruising range 300 milesc. Trailer.(1) GENERAL SPECIFICATIONS.Wheelbase 15 ft 7 in.Length, over-all, including drawbar 29 ft 8 in.Width, over-all 9 ft. 6 in.Height, over-all 4 ft 83/4 in.Loading height, unloaded 38V2 in.Tire size 8.25 x 158Generated on 2013-06-15 11:31 GMT / http://hdl.handle.net/2027/uc1.b3243754Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google 14. TM 9-768Tools, fartt, and AccessoriesWeightnet 22,020 IbWeightpay load 90,000 IbWeightgross 112,020 IbGround clearance 12 in.Brakes AirSection IIITOOLS, PARTS, AND ACCESSORIES5. PURPOSE.a. The lists in this section are for information only and must notbe used as a basis for requisition. The lists include tools, equipment,and spare parts for both truck and trailer.6. ON-VEHICLE TOOLS.a. Truck Tools.Quantity perVehicle11Item Name andStockage NumberEYE, lifting, engine (41-E-626)HAMMER, machinist's, ball-peen,16-oz (41-H-523)1 HANDLE, wheel stud nut wrench(30-in.) (Buddwheel-44201)(41-H-1517-50)1 JACK, hydraulic, 7-ton, with han-dle(41-J-73-5)1 PLIERS, combination slip-joint,wire-cutting (41-P-1650)1 SCREWDRIVER, common, heavy-duty,6-in. blade, integral-handle(41-S-1076)1 SCREWDRIVER, cross-recessed1) No. 2 (for%H-in. screws)type (typeVs-in. andGenerated on 2013-06-15 11:32 GMT / http://hdl.handle.net/2027/uc1.b3243754Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google(41-S-1638)SCREWDRIVER, cross-recessedtype (type 1) No. 3 (forStowageLocationRight-hand stowage boxRight-hand stowage boxRight-hand stowage boxRight-hand stowage boxRight-hand stowage boxRight-hand stowage boxRight-hand stowage boxRight-hand stowage boxVi-in. and No.(41-S-1640)12 screws) 15. IMY-/OO6General0.aBoooUr! i1> V*1'f1sZa. |o ij^*^*^'*^ i:1', ir jaen&!*JFLATION HOSE,AGE5p5.ZZZZS_QJ5a^^TABLE AUTOMO-WRENCH,15-IN.6^Uo^2^