MIL-T-46797 Truck, With High Lift Dump Mechanism: Dump, Cargo And Stake Body Types, Diesel And Gasoline Engine Driven, 24,000 Gvw, 4X2, CommercialThis specification covers diesel and gasoline engine driven, four-wheel, two-rear-wheel drive, commercial trucks with a high lift dump mechanism. The truck has a minimum gross vehicle weight GVW of 24,000 pounds for normal operating conditions. Vehicles procured under this specification are commercial items which shall be warranted by the manufacturer as specified in procurement documents.

Pages 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17 - 18 - 19 - 20 - 21 - 22 - 23 - 24 - 25 - 26 - 27 - 28 - 29 - 30 - 31 - 32 - 33 - 34 - 35 - 36

MIL-T-46797B(AT)

equipped with a removable crank handle. The vehicle shall be adequately reinforced at areas of jack installation to preclude damage to body and chassis assembly. The stabilizing jacks shall be of sufficient capacity to withstand the loads imposed during all operations of lifting and dumping without permanent deformation.

3.5 Body types.

* 3.5.1 Coal dump body (type I). The vehicle shall be equipped with a hydraulically operated coal dump body. The body shall have a total water level capacity of not less than

7 cubic yards (minus 5 percent). The body shall have two compartments and shall be equipped

with a mechanically operated compartment divider. The vehicle shall have a cab-to-axle dimension of not less than 84 inches. Inside length shall be not less than 103 inches and inside width shall be not less than 84 inches. A rear bumper is not required.

3.5.1.1 Body construction. Body floor, sides, compartment divider, and front head shall be of not less than 8 gage (0.1644 inch) steel. The front head shall be capable of withstanding a horizontal static load equal to 1/2 the payload capacity of the vehicle without permanent distortion. When the body floor is constructed in two or more pieces, an automatic seam weld, having full penetration is acceptable without reinforcement. When seam is hand welded, underside of joint shall be reinforced with 3-inch wide, 8 gage (0.1644 inch) butt plates, welded between crossmembers. Full-length, channel formed, rub rail of minimum width to cover rear dual tire treads shall be provided. Not less than three triangular or box section side braces per side, of not less than 10 gage (0.1345 inch) steel, shall be equally spaced, between body front head and full box-type rear corner posts, and welded to side plates. Front head sheet shall be formed or reinforced for rigidity. Front head and tailgate shall be not less than 6 inches higher than the sides. Sides shall have pockets provided at each end for insertion of side boards. The interior of body shell and side reinforcements shall be welded with continuous welds. The rub rail shall be attached using continuous welds, or with intermittent welds for not less than

50 percent of the edge length of contact edges. The body shall have sloping running boards and sloping horizontal tailgate braces to minimize the buildup of dirt.

3.5.1.2 Tailgate. The tailgate panel shall be not less than 8 gage (0.1644 inch) steel. The tailgate shall be double acting, opening from top and bottom. The tailgate shall have heavy duty hardware, heavy duty support chains, and heavy duty tailgate latch operable by a control at the left front corner of the vehicle body. The tailgate shall be reinforced to prevent deformation under load. The tailgate shall be equipped with the manufacturer's standard built-in coal chute with a manually operated sliding door and a coal deflector. The coal chute shall not interfere with the normal use of the tailgate.