MIL-T-62255 Truck Tractor, Yard Type, 4 X 2, Xm878This specification covers diesel engine driven, four-wheel, two rear wheel drive truck-tractor, yard type, with a one man half cab, having a minimum gross vehicle weight rating GVWR of 43,500 pounds and a gross combination weight rating GCWR of 100,000 pounds. Vehicles under this specification shall be procured only from a manufacturer who meets the standard commercial and commercially proven component criteria. Vehicles shall be warranted by the manufacturer as specified in the procurement documents.

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MIL-T-62255C(AT)

f. Air pressure gage, visible to the driver.

g. Low air pressure warning, visible and audible.

h. Alcohol aspirator with unbreakable transparent container, capable of accepting minus 50°F.

i. Automatic moisture ejector capable of operating at minus 50°F. j. Air control valves.

k. Service brake stop lamp switch. l. Air chambers.

m. Four-way relay emergency valve.

3.4.9.2 Trailer brake control system. In addition to components specified in 3.4.9.1, a trailer brake control system shall be furnished. Trailer brake control system shall at least include:

a. Identification of emergency and service lines. Emergency painted red and marked. b. Coincident control of trailer brakes with prime mover foot control.

c. Independent hand control for trailer brakes.

d. Prime mover protection valve with dash control and automatic break-away.

e. Trailer stoplight operative with foot brake and with hand control for trailer brakes.

f. When pintle assembly is specified in 3.1.1.5, air connectors with cover for trailers with

"gladhand" couplers mounted at the rear of the vehicle and located to preclude interference with the trailer. Dummy "gladhand" couplers with chains. Air connectors shall be in accordance with SAE J318. Emergency air connector painted red and marked.

g. Two connecting air hoses conforming to SAE J1402 and not less than 110 inches in

length, equipped with coiled spring hose guards, and "gladhand" quick connector on trailer end of hoses located at rear of cab on a pogo stick type hose tender. Emergency coupler painted red and marked.

h. Spring supports on pogo stick type hose tender with dummy "gladhand" connectors to

retain hoses when not in use. Hose tender shall not be mounted on cab roof. i. See 3.1.1.5 for air lines forward of the rear crossmember.

3.4.9.3 Parking brake. A parking brake shall be furnished. The parking brake shall be capable of being manually applied by the operator seated in the driver's seat and shall be in accordance with Federal Motor Carrier Safety Regulation 393.41.

3.4.10 Cab. Manufacturer shall furnish a standard half-width tilt cab. Cab shall be mounted to preclude vibration. Body shall be insulated and weather stripped for inclement weather specified herein. A street side cab door, and curb side cab door, when provided, shall be