MIL-T-62498 Truck, Refuse Collection: Compaction Type, One Person Operation, Manual Side-Loading, 17, 29 And 39 Yard, Dual Right And Left Hand Drive, Low Entry Cab, Diesel Engine Driven, 32,000, 35,000 And 50,000 Pounds Gvw, 4X2 And 6X4, CommercialThis specification covers diesel engine driven, four-wheel, two-wheel-drive, and six-wheel, four-wheel-drive, commercial, one-person operation refuse collection trucks. The trucks shall have dual right and left hand drive, a low entry cab, and a minimum gross vehicle weight GVW of 32,000, 35,000 or 50,000 pounds. The minimum rated capacity of the body shall be 17, 29 or 39 cubic yards, and shall be side loading and rear dumping.

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MIL-T-62498

3.2.8  Ratings.  Vehicle ratings shall be manufacturer's published ratings.  Component and vehicular ratings shall not be raised to meet the requirements of this specification.  When published ratings are not available, verification of ratings must be submitted to the engineering office of the procuring activity.

3.2.9  Cab-to-axle dimension.  The cab-to-axle dimension shall conform to that recommended by the refuse collection body manufacturer for conformance to this specification.

3.2.10  Width.  The overall width of the vehicle, exclusive of mirrors, light reflectors, and tires, shall be not more than 96 inches.  The width over the tires shall be not more than

100 inches.

3.3  Performance.

3.3.1  Speeds.  High and low speed requirements shall be met with the vehicle loaded to required GVW.

3.3.1.1  High speed gradeability.  The vehicle shall ascend grades specified in table II at

50 miles per hour (mph).  Gradeability shall be verified with calculations in accordance with

SAE J688 (see 6.3).  Gradeability requirements shall be met with the main transmission in direct drive.

TABLE II.  Gradeability.

3.3.1.2  Low speed.  Low speed shall be calculated with the engine operating at not less than 35 percent of the recommended governed speed and shall provide a vehicle speed not greater than 6 mph.

3.3.1.3  Maximum geared speed.  The maximum geared speed at engine governed speed shall be not less than 50 mph (minus 1 percent).  Conformance to geared speed specified shall be determined by calculating in accordance with the following formula:

Maximum geared speed (mph)=                 Governed speed (rpm)         Total gear reduction x tire factor (see 6.3)

3.3.2  Service brakes.  The service brakes shall control and hold the vehicle on a 30 percent grade when the vehicle is loaded to its required GVW.  The service brakes shall stop the vehicle,

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