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.

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MIL-T-46797B(AT)

(a) at the body, when the body is fully retracted

(b) at the body and hoisting mechanism, when the body is elevated to its maximum

specified height, in the most critical position, that would induce tipping.

In both (a) and (b), the resistant moment shall be greater than the wind load. The contractor shall furnish calculations or a certified test report for the vehicle or an identical vehicle to the engineering offices of the procuring activity.

* 3.3.3.8 Stress analysis. A stress analysis of the vehicle body and frame shall be furnished as specified in 3.8.

3.4 Chassis components.

3.4.1 Engine. The engine furnished shall be the chassis manufacturer's standard or optional engine for the commercial model truck which meats or exceeds the requirements of this specification.

* 3.4.1.1 Diesel engine. Unless otherwise specified (see 3.4.1.2), the vehicle shall be equipped with a liquid cooled, compression ignition, two-stroke or four-stroke cycle diesel engine, with not less than four cylinders. Engine net horsepower figures used in performance prediction calculations shall be determined in accordance with SAE J816 or SAE J1349. A fan clutch to reduce fan speed automatically, when not required for engine cooling, shall be provided.

3.4.1.2 Gasoline engine. When specified (see 6.2), the vehicle shall be equipped with a liquid cooled, internal combustion, four-stroke cycle gasoline engine, with not less than six cylinders. The engine furnished shall produce the required vehicle performance when operated on unleaded fuel with a research octane rating of 91, at engine speed not more than manufacturer's recommended operating speed. The engine shall be capable of warranted operation on unleaded fuel, when used in accordance with the operator's manual. Unless otherwise specified or required by foreign laws, vehicles for overseas use shall be capable of accepting and operating on leaded gasoline. The rated net torque output of the engine shall be not less than 265 pound-feet. Engine net torque ratings and net horsepower figures used in performance prediction calculations shall be determined in accordance with SAE J245 or

SAE J1349. A fan clutch to reduce fan speed automatically, when not required for engine cooling, shall be provided.

3.4.1.3 Oil filter. A full flow type oil filter shall be furnished.