MIL-T-46765 Trucks, Tank: Sewage And Waste, Dump Type, 4550 And 7570 Liter 1200 And 2000 Gallon, Modified CommercialThis specification covers diesel and gasoline engine driven trucks equipped with a hydraulic lift dump tank, an auxiliary engine driven centrifugal pump, and associated hoses and equipment for loading and unloading the dump tank with sewage and waste materials. The vehicle is capable of cleaning sewers, septic tanks, catch basins, manholes, and sludge pits. The trucks have minimum gross vehicle weights GVW of 11 350 kilograms kg 25,000 pounds in a four wheel, two wheel drive 4x2, 4550 liter L 1200 gallon size; and 15 650 kg 34,500 pounds in a six wheel, four wheel drive 6x4, 7570 L 2000 gallon size; for normal rating conditions. Vehicles procured under this specification are commercial items which are warranted by the manufacturer as specified in acquisition documents.

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MIL-T-46765(AT)

* 3.4.24 AM/FM radio. When specified (see 6.2), the manufacturer's standard AM/FM radio shall be provided.

* 3.4.25 Servicing and adjusting. Prior to acceptance of the vehicle by the Government inspector, the contractor shall service and adjust each vehicle and its mounted equipment for operational use including at least the following: alinement of lights; adjustment of engine; adjustment of brake system; filling and charging of batteries; alinement of front wheels; inflation of all tires; complete lubrication of chassis, engine, running gear, and mounted equipment with grades of lubricants recommended for the ambient air temperature at the delivery point; servicing of cooling system in accordance with 3.4.25.1; and servicing of windshield washer reservoir with water and appropriate additives.

* 3.4.25.1 Engine coolant. The engine coolant shall be a solution of ethylene glycol antifreeze and water or propylene glycol antifreeze and water, in equal parts of antifreeze and water by volume. Ethylene glycol antifreeze shall conform to ASTM D 4985 with not more than

250 parts per million silicates. Propylene glycol antifreeze shall be in the specific formulation

approved by the engine and cooling system manufacturers. When specified (see 6.2), the percentage of antifreeze in the cooling system shall be increased to provide protection against freezing down to -54°C (-65°F).

3.5 Body. The truck shall be equipped with a hydraulic lift operated dump type rectangular tank, an auxiliary engine driven centrifugal pump, and associated hoses and equipment suitable for loading, transporting and unloading heavy sewage and waste materials. The cab-to-axle or cab-to-trunnion dimension shall be not less than 3050 mm (120 inches).

3.5.1 Tank body. The tank body shall be equipped with a watertight rear tailgate hinged at the top, a top deck with hinged covers fully enclosing the tank, a hatch, baffles, a sewage and waste inlet, a level indicator, a drain, a hydrant water inlet, and a hydraulically operated dump body type hoist. The tank body shall be watertight to a water level capacity of 4.6 m3

(6 cubic yards) or 4550 L (1200 gallons) for size 1200 trucks and 7.6 m3 (10 cubic yards) or

7570 L (2000 gallons) for size 2000 trucks.

3.5.2 Tank body construction. For size-1200 trucks, inside length shall not be less than

2740 mm (108 inches) and inside width shal1 be not less than 1980 mm (78 inches). For size

2000 trucks, inside length shall be not less than 3050 mm (120 inches) and inside width shall be not less than 2130 mm (84 inches). Body floor, sides, and front head shall be of not less than

10 gage (3.416 mm) (0.1345 inch) steel. When the body floor in constructed in two or more pieces, an automatic seam weld having full penetration is acceptable without reinforcement.

When the seam is hand welded, the underside of joint shall be reinforced with 75 mm (3-inch)

wide, 8 gage (4.176 mm) (0.1644 inch) butt plates, welded between crossmembers. Full-length,