TB-9-2320-335-13&P HMMWV Operator and Field Maintenance, Parts, Tools M1151A1 M1152A1 M1165A1 Download
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TB 9-2320-335-13&P 2-5 Table 2-1. Unit Level Preventive Maintenance Checks and Services HMMWV (Cont’d). ITEM NO. INTERVAL ITEM TO BE INSPECTED PROCEDURES NOT FULLY MISSION CAPABLE IF: 2 Semi- annually Tires WARNING Changing tire pressures or wheel alignment out of the recommended specification may adversely affect the vehicle’s handling characteristics. Loss of vehicle control may result, causing serious injury or death to personnel and damage to equipment. NOTE Vehicle must be up on jack stands for the following checks. a. Check tread depth of tires with tire gauge. If tread depth is less than 1/16 in.(1.59 mm), replace tire. Radial tires will take approximately 1,300 miles (2,092 km) to wear 1/32 in. (0.79 mm). If mission will require the vehicle to travel this distance within a month, replace tire if it measures 3/32 in. (2.38 mm). a. Tread depth is less than 1/16 in. (1.59 mm). b. Inspect tires for uneven wear and balance (TM 9-2320-387-24-1). The vehicle’s alignment is optimally designed for GVW operation. Operating the vehicle without a load can cause excessive wear on the outer edge of the tread pattern. If this pattern develops, turn tires around on the rims (para. 8-4.1). NOTE If vehicle is new and has been driven less than 3,000 mi (4,800 km), it is not necessary to align wheels unless abnormal handling is reported. b. Tires exhibit excessive or uneven wear or balance. c. Check alignment of front and rear wheels (TM 9-2320-387-24-1). c. Front or rear wheels are out of alignment.