2 ton, multi-fuel engine driven, six-wheel six-wheel drive, military design truck chassis, trucks, and truck tractors.

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MIL-T-46780D(AT)

3.3.2 Soft top. When specified (see 6.2), the soft top furnished and installed in accordance with applicable drawings shall provide the maximum protection for the personnel when vehicle is operating in adverse climatic conditions.

3.3.3 Electrical circuits. The electrical circuits shall maintain continuity from end to end without evidence of internal or external shorts during all vehicle operating conditions.

3.3.3.1 Headlights. The main headlights furnished on all type trucks shall be mounted, and adjusted with the vehicle on a level surface so the center of the upper beam will focus on the road 300 feet ahead of the loaded vehicle. Means shall be provided for subsequent adjustments as necessary.

3.3.3.2 Radio receptacle. When specified (see 6.2), the radio receptacle furnished shall be in accordance with Drawing 7731417, and shall be installed in accordance with

Drawing 10937690.

3.3.4 Controls. All electrical, mechanical, and hydraulic controls shall operate without malfunction throughout all ranges of operation under all vehicle operating conditions.

3.3.5 Adjustment mechanisms. All adjustment mechanisms shall function properly, and maintain adjustment settings during all vehicle operating conditions.

3.3.6 Stowed material. All on vehicle material (OVM) shall be stowed on the vehicle in spaces provided to assure the items will not interfere with other components and operation of vehicle.

3.3.7 Fuel servicing tank trucks (M49A2C). All seams and joints of the tank shall be liquid tight without caulking and shall not leak when under 2 pounds per square inch (psi) pressure. The tank body and equipment shall conform to requirements of the drawings and as specified by the procurement documents.

3.3.8 Water-tank trucks (M50A3). The water-tanks furnished for mounting on truck chassis (M45A2) shall be of the 2 compartment type 500 gallons forward and 500 gallons rear) with a nominal capacity of 1000 gallons and provide space for the stowage of equipment. Actual capacity of each compartment shall provide a minimum of 3 percent greater than nominal to allow for expansion. Fully loaded water-tank truck shall have clearance for approved tire chains.

3.3.8. Tank body. The tank body furnished shall be in accordance with

Drawing 11609000 with insulated compartments. Parts, fittings, and piping in contact with water shall be of corrosion-resistant material not affecting the potability of the water. Where dissimilar materials are utilized, effective means shall be taken to prevent corrosion from electrolytic action.