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)

3.1.1.3.1 Coolant system and indicators. Coolant system shall inciude a deaeration system and a surge tank or a coolant recovery reservoir of not less than two quart capacity. A high coolant temperature and a low coolant level alarm buzzer and red indicator warning light shall be provided on the dash instrument panel. The reservoir shall be located in a position readily

visible for inspection of the coolant level. A radiator servicing access door shall be provided.

3.1.1.4 Towing, tiedown and lifting devices. Towing, tiedown and lifting devices specified herein, shall be furnished. The tiedown and lifting devices shall be in accordance with Class 1, Type II of MIL-STD-209, and their attaching members shall be certified to the engineering office of the procuring activity that the devices meet or exceed MIL-STD-209.

3.1.1.4.1 Towing devices. Two towing devices shall be furnished on the front of the vehicle and two towing devices shall be furnished on the rear of the vehicle. The towing devices shall be capable of towing the specified GCWR. A caution plate shall be provided depicting the following.

NOTE: Do not tow vehicle over 20 miles per hour (mph) and no more than 15 miles.

3.1.1.4.2 Tiedown and lifting devices. In addition to the towing devices specified in

3.1.1.4.1, the vehicle shall be capable of being transported by highway, rail, ocean carrier and

C5A aircraft. Complete diagrams and instructions for lifting and tying down the vehicle to the various transportation modes shall be provided. The tiedown devices shall permit tiedown of the vehicle to the floor or deck of the transportation medium in such a manner as to prevent shifting or movement in any direction. Each device and its attaching member shall be capable of accepting its proportionate share of the loads imposed.

3.1.1.5 Rear crossmember mounting for pintle assembly. A rear crossmember for mounting a pintle assembly MS51117 by the receiving activity shall be furnished. Location for the holes for the pintle assembly shall be as specified in 3.1.1.5.1. The crossmember shall include the mounting holes for the pintle assembly, and the two towing devices specified in 3.1.1.5.1. The brake air lines and the electrical lines shall terminate forward of the crossmember with provisions for the receiving activity to install the air brake receptacles and electrical 12 volt