MIL-T-62246 Truck, Dump, Street Maintenance, Diesel And Gasoline Engine Driven, 21,000 Pounds Gvw, 4X2, CommericalThis specification covers diesel and gasoline engine driven, four-wheel, two-rear-wheel drive dump trucks equipped with a material sprayer, an auxiliary engine driven air compressor, and a vibrating roller for use in street maintenance. Vehicles shall have a minimum gross vehicle weight GVW of 21,000 pounds for normal operating conditions. Vehicles procured under this specification are commercial items which shall be warranted by the manufacturer as specified in acquisition documents.

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MIL-T-62246B(AT)

(h)

Dual sunvisors

(i)

(j)

Front door mounted armrest on driver's side

Driver's compartment ventilator other than window

(k)

Tachometer.

3.4.20 Rearview mirrors. Outside rearview mirrors shall be mounted on each side of the cab. The mirrors shall be of the combination type having flat and convex areas enclosed in a common housing. The flat portion shall have not less than 50 square inches of reflective area. The convex portion shall have not less than 20 square inches of reflective area. The mirrors shall have not less than two supporting arms.

3.4.21 Horn. The manufacturer's standard electric horn shall be furnished. When specified (see 6.2), in addition, an air operated horn shall be furnished on vehicles equipped with an air brake system.

* 3.4.22 Engine hour meter. An engine hour meter having a totalizing mechanism of not less than 9,999 hours shall be furnished for the chassis engine to register accurately the number of hours of operating time. The meter shall be of rugged construction to ensure continuous

trouble-free performance under severe operating conditions. The engine hour meter shall be

mounted on the cab instrument panel or in the engine compartment in a readable location.

* 3.4.23 Warning light. An amber, rotating, vehicular warning light conforming to

MS51317-4 shall be provided. The rotating light shall be mounted with reinforcement at point of

attachment on vehicle centerline for 360-degree visibility. The rotating light shall be operated by means of a separate switch with an indicator light located on the instrument panel and marked to indicate the function of the switch.

3.4.24 Back-up alarm. The vehicle shall be provided with an audible, pulsating signaling device (electrical or mechanical) to caution personnel when the vehicle is in reverse gear operation.

3.5 Body. The vehicle shall have a rear-of-cab to rear axle dimension of not less than

100 inches. The vehicle shall be equipped with a hydraulic hoist operated dump body.

Maintenance equipment shall include a material sprayer with air compressor, and all accessories including other standard equipment generally furnished, and an asphalt patching vibrating roller.

3.5.1 Dump body. The dump body shall have a water level capacity of not less than 2 cubic yards (minus 5 percent). Inside length shall be not less than 96 inches. Inside width shall be not less than 78 inches. The front head and tailgate shall be not less than 6 inches higher than the sides.