Tm 9-2320-273-20
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TM 9-2320-273-20 TECHNICAL MANUAL ORGANIZATIONAL MAINTENANCE TRUCK TRACTOR, LINE HAUL, 50,000 GVWR, 6 X 4, M915 (NSN 2320-01-028-4395) TRUCK TRACTOR, LIGHT EQUIPMENT TRANSPORTER (LET), 56,000 GVWR, 6 X 6, W/WINCH M916 (NSN 2320-01-028-4396) TRUCK TRACTOR, MEDIUM EQUIPMENT TRANSPORTER (MET), 75,000 GVWR, 8 X 6, W/WINCH M920 (NSN 2320-01-028-4397) TRUCK CHASSIS, 75,000 GVWR, 8 X 6, FOR 20-TON DUMP TRUCK, M917 (NSN 3805-01-028-4389) TRUCK CHASSIS, 56,000 GVWR, 6 X 6, FOR BITUMINOUS DISTRIBUTOR TRUCK, M918 (NSN 3895-01-028-4390) TRUCK CHASSIS, 75,000 GVWR, 8 X 6, FOR CONCRETE-MOBILE@ MIXER TRUCK, M919 (NSN 3895-01-028-4391) AM GENERAL CORPORATION TA 075632 HEADQUARTERS, DEPARTMENT OF THE ARMY NOVEMBER 1980 This copy is a reprint which includes current pages from Changes 1 through 4. TM 9-2320-273-20 This manual may include copyrighted technical data of one or more of the following subcontractors of AM General Corporation: © 1975 Alinabal, Division of MPB Corporation © 1973, 1978 Anchorlock, Division of Royal Industries © 1971 Bostrom, Division of Universal Oil Products Company © 1976 The Budd Company © 1965, 1967, 1973, 1977 Cole-Hersee Company © 1971, 1972, 1974, 1975 Chelsea Power Equipment, Division of Dana Corporation © 1970 Cross Manufacturing, Incorporated © 1977, 1978, 1979 Cummins Engine Company, Incorporated © 1977 Dayco Corporation © 1976 Eberhard Manufacturing Company, Division of the Eastern Company © 1973 Firestone Steel Products Company, Division of the Firestone Tire and Rubber Company © 1976 Grote Manufacturing Company © 1975, 1975, 1977 Owatonna Tool Company, Tools and Equipment Division © 1975 Holland Hitch Company © 1972, 1973, 1976 Long Manufacturing, Division of Borg-Warner Corporation © 1960 Mercury Metal Products © 1976 Nelson Muffler, Division of Nelson Industries, Incorporated © 1977 Phillips, Division of Budd © 1976 Parker-Hannifin Corporation © 1970, 1975, 1976, 1977, © 1978, 1979 RockwelI International © 1976, 1977 Ross Gear, Division of TRW, Incorporated © 1978 Snap-On Tools Corporation AM General has written permission from any and all such subcontractors holding copyrights to grant the United States Government a royalty free, nonexclusive and irrevocable license throughout the world for Governmental purposes to publish, translate, reproduce, deliver, perform, dispose of, and to authorize others so to do, alI tecnnical data now or hereafter covered by copyright. Any use other than that authorized above must be made with the express permission of AM General or the sub- contractor whose copyrighted material is being used. This notice must be reproduced on alI copies or portions thereof. a/(b (blank)) TM 9-2320-273-20 CARBON MONOXIDE POISONING CAN BE DEADLY Carbon monoxide is a colorless, odorless, poisonous gas, which, when breathed, deprives the body of oxygen and causes suffocation. Exposure to air contaminated with carbon monoxide produces symptoms of headache, dizziness, loss of muscular control, apparent drowsiness, or coma. Permanent brain damage or death can result from severe exposure. Carbon monoxide occurs in the exhaust fumes of fuel-burning internal combustion engines and can become dangerous under conditions of inadequate ventilation. The following precautions must be observed to insure the safety of personnel: A. DO NOT operate the engine of a vehicle in an enclosed area unless it is ADEQUATELY VENTILATED. B. DO NOT idle the engine for long periods without maintaining ADEQUATE VENTILATION in the personnel compartments. C. DO NOT drive any vehicle with inspection plates, cover plates, or engine compartment doors removed unless it is necessary for maintenance purposes. D. BE ALERT at all times during vehicle operation for exhaust odors, and exposure symptoms. If either are present, IMMEDIATELY VENTILATE the personnel compartments. If symp- toms persist, remove affected personnel from the vehicle and treat as follows: (1) Exposure to fresh air. (2) Keep warm. (3) DO NOT PERMIT EXERCISE. (4) If necessary, administer artificial respiration (see FM 21-11). THE BEST DEFENSE AGAINST CARBON MONOXIDE POISONING IS ADEQUATE VENTILATION. COMPRESSED AIR Compressed air used for cleaning purposes will not exceed 30 psi. Use only with effective chip guarding and personal protective equipment (goggles/shield, gloves, etc.). WINCH HYDRAULIC RESERVOIR (M916 AND M920) Do not remove fill cap when hydraulic fluid is hot. The hydraulic tank is pressurized to 5 psi. Remove the fill cap slowly. c TM 9-2320-273-20 COOLING FAN When working in the engine compartment with the engine running, stay clear of the cooling fan. The fan may engage automatically at any time and could cause serious injury. PUSHER AXLE (M917, M919, AND M920) When the pusher axle is in the up position it freewheels. DO NOT USE THE PUSHER AXLE AS A STEP. You can fall and be injured. Always lower the pusher axle when the vehicle is parked. FILLING THE RADIATOR Let the radiator cool before removing cap. Remove radiator cap in two steps. First, place a thick cloth over the cap and slowIy rotate cap left to its first stop; pause, and let pressure escape from cooling system. Then rotate cap farther left until you can remove it. Failure to follow this procedure can re- sult in serious burns. LIFTING THE TRUCK Improper use of lifting equipment and attachment of cables to the truck can result in serious person- nel injury and equipment damage. OBSERVE ALL STANDARD RULES OF SAFETY. HOOD SAFETY LATCH After raising hood, insert the S-shaped safety hook through two matching holes in the prop channels to prevent the hood from falling accidentally. EXHAUST PIPE AND MUFFLER During normal operation the exhaust pipe and muffler can become very hot. Be careful not to touch these components with your bare hands. Do not allow your body to come in contact with the pipe or muffler. Exhaust system components may be hot enough to cause serious burns. d Change 2 TM 9-2320-273-20 C5 Change HEADQUARTERS, DEPARTMENT OF THE ARMY No. 5 WASHINGTON, DC, 30 December 2005 TECHNCIAL MANUAL ORGANIZATIONAL MAINTENANCE TRUCK TRACTOR, LINE HAUL, 50,000 GVWR, 6x4, M915 (NSN 2320-01-028-4395) TRUCK TRACTOR, LIGHT EQUIPMENT TRANSPORTER (LET), 56,000 GVWR, 6x6, W/WINCH M916 (NSN 2320-01-028-4396) TRUCK TRACTOR, MEDIUM EQUIPMENT TRANSPORTER (MET), 75,000 GVWR, 8x6, W/Winch M920 (NSN 2320-01-028-4397) TRUCK CHASSIS, 75,000 GVWR, 8x6, FOR 20-TON DUMP TRUCK M917 (NSN 3805-01-028-4389) TRUCK CHASSIS, 56,000 GVWR, 6x6, FOR BITUMINOUS DISTRIBUTOR TRUCK, M918 (NSN 3895-01-028-4390) TRUCK CHASSIS, 75,000 GVWR, 8x6, FOR CONCRETE- MOBILE MIXER TRUCK M919 (NSN 3895-01-028-4391) DISTRIBUTION STATEMENT A- Approved for public release; distribution is unlimited. TM 9-2320-273-20, 28 November 1980, is changed as follows: 1. Remove old pages and insert new pages as indicated below. Remove Pages Insert Pages B-1 through B-20 B-1 through B-20.2 Sample and DA Forms 2028 Sample and DA Forms 2028 2. File this changed sheet in the front of the publication for information purposes. This change implements Army Maintenance Transformation and changes the Maintenance Allocation Chart (MAC) to support Field and Sustainment Maintenance. By Order of the Secretary of the Army: PETER J. SCHOOMAKER General, United States Army Official: Chief of Staff SANDRA R. RILEY Administrative Assistant to the Secretary of the Army 0517806 DISTRIBUTION: To be distributed in accordance with the initial distribution (IDN) 380298 requirements for TM 9-2320-273-20. TM 9-2320-273-20 C4 CHANGE HEADQUARTERS DEPARTMENT OF THE ARMY No. 4 WASHINGTON, D. C., 20 April 1993 ORGANIZATIONAL MAINTENANCE TRUCK TRACTOR, LINE HAUL, 50,000 GVWR, 6X4, M915 (NSN 2320-01-028-4395) TRUCK TRACTOR, LIGHT EQUIPMENT TRANSPORTER (LET), 56,000 GVWR, 6X6, W/WINCH M916 (NSN 2320-01-028-4396) TRUCK TRACTOR, MEDIUM EQUIPMENT TRANSPORTER (MET), 75,000 GVWR, 8X6, W/WINCH M920 (NSN 2320-01-028-4397) TRUCK CHASSIS, 75,000 GVWR, 8X6 FOR 30 TON DUMP TRUCK M917 (NSN 3805-01-028-4389) TRUCK CHASSIS, 56,000 GVWR, 6X6 FOR BITUMINOUS DISTRIBUTOR TRUCK, M918 (NSN 3895-01-028-4390) TRUCK CHASSIS, 75,000 GVWR, 6X6 FOR CONCRETE MOBILE MIXER TRUCK, M919 (NSN 3895-01-028-4391) TM 9-2320-273-20, 28 November 1980, is changed as follows: 1. Remove old pages and insert new pages as indicated below. 2. The Preventive Maintenance Checks and Services have been completely replaced; no change bars or pointing hands will appear on pages 3-3 through 3-10.30. Remove Pages Insert Pages 3-3 through 3-10 3-3 through 3-10.30 3. File this change sheet in the front of the publication for information purposes. By Order of the Secretary of the Army: GORDON R. SULLIVAN General, United States Army Official: Chief of Staff MILTON H. HAMILTON Administrative Assistant to the Secretary of the Army Distribution: To be distributed in accordance with DA Form 12-38-E, Block 0298, requirements for TM 9-2320-273-20. Approved for public release; distribution is unlimited. TM 9-2320-273-20 CHANGE HEADQUARTERS DEPARTMENT OF THE ARMY Washington D.C., 26 June 1992 No. 3 ORGANIZATIONAL MAINTENANCE TRUCK TRACTOR, LINE HAUL, 50,000 GVWR, 6 X 4, M915 (NSN 2320-01-028-4395) TRUCK TRACTOR, LIGHT EQUIPMENT TRANSPORTER (LET), 56,000 GVWR, 6 X 6, W/WINCH M916 (NSN 2320-01-028-4396) TRUCK TRACTOR, MEDIUM EQUIPMENT TRANSPORTER (MET), 75,000 GVWR, 8 X 6, W/WINCH M920 (NSN 2320-01-028-4397) TRUCK CHASSIS, 75,000 GVWR, 8 X 6 FOR 30 TON DUMP TRUCK, M917 (NSN 3805-01-028-4389) TRUCK CHASSIS, 56,000 GVWR, 6 X 6 FOR BITUMINOUS DISTRIBUTOR TRUCK, M918 (NSN 3895-01-028-4390) TRUCK CHASSIS, 75,000 GVWR, 6 X 6 FOR CONCRETE MOBILE MIXER TRUCK, M919 (NSN 3895-01-028-4391) TM 9-2320-273-20,28 November 1980 is changed as follows: 1.