MIL-T-740 Trucks; 5 Ton, 6X6, Military Design, M39, M39A1, M39A2 And M809 SeriesThis specification covers general and special purpose 5 ton, gasoline, multi-fuel, and diesel engine powered, six-wheel, six-wheel drive, military design truck chassis, trucks, and truck tractors having single front and dual rear wheels.

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MIL-T-740G

3.3.4 Stowed material. Original equipment material (OEM) items shall be stowed on the vehicle in the spaces provided to assure that items will not interfere with other components and operation of the vehicle.

3.3.5 Engines. Engines, when installed in group 1, 2, and 3 vehicles, shall be in accordance with the following:

a. Group 1, Gasoline engines, Ordnance Drawing 10883507.

b. Group 2, Multi-fuel engines, LDS-465-1A and 1; - DAPD-292.

c. Group 3, Diesel engines; NHC-250 and ENDT-673; - ATPD-2023.

3.3.6 Heaters and air conditioners (truck, van: expansible).

3.3.6.1 Heaters. Two multi-fuel burning space heaters shall be furnished and installed on trucks, van, expansible, M291A1, M291A1D, M2191A2, M291A2C, M291A2D, M291A2F, M820, M820A1 and M820A2, in accordance with applicable TDP requirements.

3.3.6.1.1 Air flow modulation. Air inlet damper shall be provided to control the percentage of circulating air mixture.

3.3.6.2 Air conditioner. Provisions shall be made so that a 36,000 British thermal unit per hour (Btu/hr), air conditioner can be installed on vehicles listed in 3.3.6.1, in accordance with applicable TDP requirements.

3.3.7 Winches. Winches, controls and equipment, installed in accordance with applicable drawings on vehicles requiring winches, shall supply power to retrieve disabled equipment under all climatic conditions. The winch and controls shall supply power for the operation of wrecker equipment.

3.3.8 Lubrication fittings. All surfaces requiring lubrication shall be provided with lubrication fittings.

3.3.9 Wrecker crane and controls. Wrecker crane and controls, constructed and installed in accordance with specified drawing, shall operate without malfunction throughout all ranges of operation, under all operating conditions.

3.3.10 Truck, bolster, logging (M748A1 w/winch, M748A2 w/winch, and M815 w/winch. Truck, bolster, logging M748A1 w/winch, M748A2 w/w and M815 w/w shall consist of a body, bolster, logging, constructed in accordance with specified drawings and mounted on a M40A1, M40A2 w/w or M809 w/w truck chassis.

3.3.11 Truck, stake, bridge transporting (M328A1, M328A2 w/winch and M821 w/winch. Truck, stake, bridge transporting M328A1, M328A2 w/w, and M821 w/w, shall consist of a body, stake, bridge transporting, constructed in accordance with specified drawings and mounted on an M139Al, M139A2 w/w or M812 w/w truck chassis.

3.3.12 Drop-side cargo body. Drop-side cargo body, constructed in accordance with specified drawings, shall consist of sides and tailgate, that can be either rotated on hinges or removed to permit access to the cargo bed floor area from three sides of the vehicle.