TM 5-3805-274-10 OPERATION INSTRUCTIONS DUMP TRUCK BODY .
TM 5-3805-274-10TECHNICAL MANUALOPERATION INSTRUCTIONSDUMP TRUCK BODYM917NSN 3805-01-028-4389FRUEHAUF CORPORATION(MANUAL PREPARED BY AM GENERAL CORPORATION)DAAE07-77-C4211HEADQUARTERS, DEPARTMENT OF THE ARMYOCTOBER 1979This copy is a reprint which includes current pages from Changes 1 and 2.
TM 5-3805-274-10C1ChangeNo. 1}HEADQUARTERSDEPARTMENT OF THE ARMYWashington, DC, 8 September 1980Operation InstructionsDUMP TRUCK BODY, M917(NSN 3805-01-028-4389)TM 5-3805-274-10, 5 October 1979, is changed as follows1. Cover (bottom of page) Add, OCTOBER 19792. Remove old pages and insert new pages as indicated below. New or changed material is indicated by a verticalbar in the margin of the page. Added or changed illustrations is indicated by a vertical bar adjacent to theidentification number.Remove pagesInsert pages3-13 and 3-14 . 3-13 and 3-14B-3 and C-0 . B-3 and C-0D-1 and INDEX-0 . D-1 and INDEX-03. File this change sheet in front of the publication for reference purposes.
By Order of the Secretary of the Army:Official:J. C. PENNINGTONMajor Genera4 United States ArmyThe Adjutant GeneralE. C. MEYERGeneral, United States ArmyChief of StaffDistribution:To be distributed in accordance with DA Form 12-25B requirements for Dump Truck, M917.
TM 5-3805-274-10WARNINGWhen operating the M917 dump truck, be sure to observe all warnings identified In the TM 2320 27310 Operator’s Manual for the M917 truck chassis. The warning conditions most likely to beencountered during dumping operations a repeated here.CARBON MONOXIDE POISONINGCAN BE DEADLYCarbon monoxide is a colorless, odorless, poisonous gas, which, when breathed, deprives thebody of oxygen and uses suffocation. Exposure to air contaminated with carbon monoxideproduces symptom of headache, dizziness, loss of muscular control, apparent drowsiness, orcoma. Permanent brain damage or death can result from severe exposure.Carbon monoxide occurs in the exhaust fumes of fuel-burning internal combustion engines andcan become dangerous under conditions inadequate ventilation. The following precautions mustbe observed to insure safety of personnel:A. DO NOT operaVENTILATED.the engine of a vehicle in an engine area unless it is ADEOUATELYB. DO NOT idle the engine for long periods without maintaining ADEQUATE VENTILATION in thepersonnel compartments and immediate area.C. DO NOT operate any vehicle with inspection plates, cover plates or engine compartmentdoors removed unless it is necessary for maintenance purposes.
TM 5-3805-274-10WARNINGD. BE ALERT at all times during vehicle operation r exhaust odors, and exposure symptoms. Ifeither is present, IMMEDIATELY VENTILATE the area. If symptoms persist, remove affectedpersonnel from the area and teat as follows.(1) Expose to fresh air.(2) Keep warm.(3) DO NOT PERMIT EXERCISE.(4) If necessary, administer artificial respiration.THE BEST DEFENSE AGAINST CARBON MONOXIDE POISONING IS ADEQUATE VENTILATION.EXHAUST SYSTEM COMPONENTS CAN CAUSE SEVERE BURNSDuring normal operation the exhaust pipe and muffler an become very hot. Be careful not totouch these components with your bare hands. Do not allow your body to come in contact withthe pie or muffler. Exhaust system components may be hot enough to cause serious burns.
TM 5-3805-274-10WARNINGIf NBC exposure is suspected, all air filter media should behandled by personnel wearing protective equipment. Consultyour unit NBC Officer or NBC NCO for appropriate handling ordisposal instructions.WARNINGDo not attempt to dump in a high wind. Be sure the truck ison firm ground. Stay at the controls so that you can lower thebed immediately if it leans or shifts during dumping. Makecertain all personnel are clear before you unlock the tailgateor raise the bed. If the body leans or shifts, check for: Flat tires or low air pressure. Weak or broken spring leaves. Wheels sinking unevenly. Load sticking on one side of body. High or gusty wind.Find and correct the problem before you finish dumping.NEVER OPERATE THE HYDRAULIC CONTROL LEVER (located in the truck cab)without first making sure all personnel are clear of the dump body.While loading the dump truck, make sure the vehicle park brake is set (see TM 9-2320 273-10) otherwise the truck may roll or shift causing injury to personnel or equipmentdamage.Disengage the PTO and turn OFF the engine while cleaning the raised body.Change 2 c.
TM 5-3805-274-10TECHNICAL MANUALHEADQUARTERSDEPARTMENT OF THE ARMYWashington, D.C.5 October 1979OPERATOR’S MANUALDUMP TRUCK BODYM917 (NSN 3805-01-028-4389)REPORTING ERRORS AND RECOMMENDING IMPROVEMENTSYou can help improve this manual. If you find any mistakes or if you know of a way to improve theprocedures, please let us know. Mail your letter, DA Form 2028 (Recommended Changes to Publicationsand Blank Forms), or DA Form 2028-2, located in the back of this manual, direct to: Commander, U.S.Army Tank-Automotive Command, ATTN: AMSTA-MB, Warren, Ml 48397-5000. A reply will be furnishedto you.TABLE OF CONTENTSCHAPTER 1Section I.Section II.CHAPTER 2Section I.ParaINTRODUCTION .General .Scope.1-1Maintenance Forms and Records .1-2Reporting Equipment ImprovementRecommendations (EIR) .1-3Description and Data .1-0Description.1-4Tabulated Data .1-5OPERATING INSTRUCTIONS .Operating Procedures.Scope.2-1Preparing To Load .2-2Loading the Dump Truck .2-3Transporting.2-4Dumping .2-5Controlled Spreading .2-6Hauling Long Materials .2-7Stowing the Tarpaulin .2-8Section II Operation Under Unusual Conditions.Operation in Windy Weather .2-9Operation in Rainy or Snowy Weather .2-10Operation in Cold Weather .2-11Change 2 12-142-172-182-182-182-18
TM 5-3805-274-10CHAPTER 3Section I.Section II.Section III.Section IV.APPENDIXAPPENDIX BSection I.Section II.Section III.APPENDIX CSection I.Section II.APPENDIX DSection I.ScopeSection II.ParaMAINTENANCE INSTRUCTIONS .Lubrication Instructions .Lubrication. 3-1Preventive Maintenance Checks and Services.General. 3-2General Maintenance Procedures. 3-3Fluid Leakage. 3-4Troubleshooting.Introduction. 3-5Maintenance Procedures .Introduction. 3-6Cleaning Procedure. 3-7A REFERENCES .Publication Indexes . A-1Forms . A-2Other Publications . A-3COMPONENTS OF END ITEM LIST.Introduction.Scope . B-1General. B-2Explanation of Columns . B-3Integral Components of End Item .Basic Issue Items (None Authorized)ADDITIONAL AUTHORIZATION LIST.Introduction.Scope . C-1General. C-2Explanation of Listing . C-3Additional Authorization List .EXPENDABLE SUPPLIES AND MATERIALS LIST .Introduction.D-1. D-1Explanation of Columns . D-2Expendable Supplies and Materials List .INDEX -1D-1D-2Index 1
TM 5-3805-274-10CHAPTER 1INTRODUCTIONSection I. GENERAL1-1.Scope.This manual is for your use in operating and maintaining the M917 Dump Truck Body. Refer to the Operator’s Manual (TM9-2320-273-10) for instructions on operating and maintaining the vehicle chassis.1-2.Maintenance Forms and Records.Equipment maintenance forms and procedures for their use are contained in DA Pam 738-750, The Army MaintenanceManagement System (TAMMS).1-3.Reporting Equipment Improvement Recommendations (EIR).EIRs will be prepared on SF 368 (Quality Deficiency Report). Instructions for preparing EIRs are provided in DA Pam 738 750, The Army Maintenance Management System (TAMMS). EIRs should be mailed directly to: Commander, U.S. ArmyTank-Automotive Command, ATTN: AMSTA-MP, Warren, Ml 48397-5000. A reply will be furnished to you.Section II. DESCRIPTION AND DATA1-4.Description.a. Features and Capabilities. The M917 dump truck body provides the capability of hauling and dumping, orspreading heavy loads of hot asphalt, aggregate, dirt, and similar materials. The M917 vehicle chassis has off-roadcapabilities therefore providing a wide variety of terrain in which the dump truck can operate. The dump body contains asealed hydraulic system for raising and lowering the dump bed. The hydraulic system is powered by the vehicle chassisPTO unit. The tailgate can be adjusted for dumping the load or for controlled spreading while the vehicle is moving.b. Major Components. Figure 1-1 shows the location of major dump truck body components you will need tobecome familiar with to properly operate the M917 dump body.(1) Guide rod. This steel rod, bolted to the cab protector, provides the operator a visual indication of when thebed is down.(2) Dump bed. This is a rectangular shaped steel bed for hauling hot asphalt, aggregate, or various othermaterials. It incorporates a cab protector as a structurally integral component. Its purpose is to protect the cab. A doghouse is provided in the front of the bed in which the top of the hoist cylinder is mounted.(3) Tarpaulin hooks. There are fourteen hooks attached to the dump body for attaching the tarpaulin, five oneach side, two in front and two in the back.Change 2 1-0
TM 5-3805-274-10Figure 1-1. Major Components of the Dump Body.1-1
TM 5-3805-274-10(4) Tailgate. This is a double-acting tailgate in that it is hinged at the top and the bottom. For normal operation,the tailgate is hinged at the top and opens outward at the bottom. A locking mechanism, operated by the tailgate controllever, is provided to lock the tailgate in the closed position. When the control lever is up, two jaws, one on each side of thetailgate, clamp over the large pins or rods at the bottom of the tailgate. By removing the top pin and lowering the tailgatefrom the top to a level position and securing with the adjustment chain, extra long materials can be hauled.(5) Adjustable Chain. An adjustment chain is provided which allows adjusting the maximum swing travel of thetailgate for spreading. This is accomplished by shortening or lengthening the linkage of the chain.(6) Safety strut. When the bed is raised for purposes of inspection or other maintenance, the safety strut shouldbe raised as an added safety precaution (fig. 2-10). The safety strut is hinged at the back, and when raised forms acradle with the cross member braced across the bottom of the dump bed. When not in use, it rests between the chassisframe rails.(7) Hydraulic control valve. This is a single-spool valve with the control piston mechanically linked to thehydraulic control lever in the cab. Its purpose is to supply hydraulic pressure to raise and lower the dump bed.(8) Hoist cylinder. This is a three stage telescoping cylinder that, under hydraulic pressure, raises the dump bed.The cylinder piston is attached to the dump bed inside the dog house and the cylinder base is attached to the dump bodysub-frame. In the lowering cycle, pressure is relieved through the pilot valve which allows the cylinder to compress underthe weight of the dump bed.(9) Hydraulic reservoir. The hydraulic reservoir is a 20-gallon, all steel tank mounted between the dump bodysub-frame rails just in front of the hoist cylinder. The reservoir has top and bottom sight glasses for determining fluid leve l.The top sight glass can be viewed from the driver’s side without raising the dump bed.(10) Tarpaulin. The tarpaulin contains grommets for hooking to the front, side, and rear of the dump bed. Rubbertie down straps are provided for fastening over the tarpaulin hooks on the sides and rear. The tarpaulin is stowed in astowage box located between the cab and the dump body. The stowage box is tubular with an access door on the driver’sside of the truck.(11) Hydraulic control lever. This is a floor mounted unit that is mechanically linked to the hydraulic control valve.By squeezing the T-handle control head, the lever can be shifted to the UP position to raise the dump bed, or to theDOWN position to lower the dump bed. Release the T-handle and place the lever in the N (neutral) position when youwish to stop the dump bed.(12) Filter and service indication gage. The filter collects contaminants in the hydraulic system. When the filter isdirty it restricts oil flow and there is a buildup in pressure at the filter. The service indication gage registers this pressure.When the gage needle is in the red, the need for an oil filter change is indicated.1-2
TM 5-3805-274-10(13) Tailgate control lever. This control is a direct mechanical link to the tailgate locking mechanism. A safetyloop and chain (attached to the dump body) are provided as a safety feature. When the control lever is in the full upposition, place the loop over the control lever to prevent accidental releasing of the tailgate. To release the tailgate fordumping, remove the safety loop and pull the control lever forward and pull down. After dumping and lowering the bed,push the control lever back and pull up to lock the tailgate closed. If the tailgate is hanging open, the locking mechanismwill not engage. Make sure the tailgate locking jaws have latched over the rod at the bottom of the tailgate. After lockingthe tailgate, slip the safety loop over the control lever.c. Chassis Components. You will also need to become familiar with the truck chassis components. Refer toTM 92320-273-10.1-5.Tabulated Data.a. Capacities, Weights and Dimensions. Table 1-1 lists pertinent data on dump body capacities, weights, anddimensions which you may need to operate the equipment.Table 1-1. M917 Dump Body Capacities, Weights, and Dimensions.CAPACITIESDump BodyStruck (water level) .12.0 cu yd (9.17 m3)Heaped (excluding cab protector) . 15.2 cu yd (11.63 m3)Heaped (with 12 in high side boards). 19.6 cu yd (14.99 m3)Hydraulic System .27 gal (102.21 liter)WEIGHTS (including Chassis)Empty . 34,080 lbs (15,459 kg)Loaded . 74,980 lbs (34,011 kg)DIMENSIONS (including Chassis)Height (empty, over cab protector). 141 in (3.58 m)Width (outside) . 96 in (2.44 m)Length . 350.6 in(8.90 m)Loading Bucket Clearances (ground to top of side). 101 in (2.56 m)Hopper Loading Clearances (drive through) . 142 in (3.61 m)1-3
TM 5-3805-274-10b. Instruction and Data Plates. Figure 1-2 shows the dump body data and instruction plates.Figure 1-2. Instruction and Data Plates.1-4
TM 5-3805-274-10CHAPTER 2OPERATING INSTRUCTIONSSection I. OPERATING PROCEDURES2-1.Scope.This section tells you how to load, transport cargo, and unload the dump body under ordinary operating conditions. Itidentifies controls and tells you how to use them.NOTEThis manual contains instructions for dump body operation only.chassis operating instructions.2-2.See TM 9 2320273-10 forPreparing To Load.a. Perform your before (B) PMCS (see chapter 3, section II). Notify Organizational Maintenance of any problems.b. Check tailgate control and locking mechanism to make sure it is securely fastened.(1) Be sure that the control lever is in the full up position. The chain safety loop must be in place, as shown infigure 2-1.(2) Check that the jaws of the tailgate locking mechanism are closed securely over the bottom pins of thetailgate as shown in figure 2-2.(3) Make sure the cotter pins are installed in the tailgate top la
(7) Hydraulic control valve. This is a single-spool valve with the control piston mechanically linked to the hydraulic control lever in the cab. Its purpose is to supply hydraulic pressure to raise and lower the dump bed. (8) Hoist cylinder. This is a three stage telescoping cylinder that, under hydraulic pressure, raises the dump bed.
Baker, Dorrice bakerd@gram.edu Phone: Fax: (318)274-3254 (318)274-3304 GSU Box 4274 Charles P.Adams, School of Social Work Administrative Assistant 3 Baniya, Babu K. baniyab@gram.edu Phone: Fax: (318)274-6388 (318)274-2232 GSU Box 4257 Carver Hall, Room 281b Mathematics Assistant Professor Banks, Toyon b
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Bob Gardner Michael Shapcott ACKNOWLEDGEMENTS The Wellesley Institute acknowledges the financial and research support of the Public Health Agency of Canada in preparing an earlier version of this paper. Copies of this report can be downloaded from www.wellesleyinstitute.com.
