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 2-55 To check for proper operation of ball joints: (1) Chock rear wheels front and back. (2) Raise front wheels about two inches off the ground and support on a jack stand. NOTE If ball joint boot is ripped or torn, ball joint is unservicable. (a) Lower ball joints. (3) Mark a line across the head of the top bolt holding the steering arm cover. Make sure the mark is parallel to the lower control arm. (4) Put a prybar between the cover control arm and gear hub. (5) Set a 6-inch ruler upright between the lower control arm and the marked screw. (6) Push down the prybar to try to move the hub. (7) Measure movement in the hub assembly. If movement is more than 1/8 inch (3 mm), replace lower ball joint (refer to TM 9-2320-387-24-1). (b) Upper ball joints. (8) Visually inspect ball joint boot, and replace upper ball joint if boot is ripped or torn. (9) Grasp top of tire and attempt to move tire IN and OUT. Observe upper control arm and gear hub where upper ball joint is mounted. If lateral movement is observed, upper ball joint may be worn. (10) Replace upper ball joint if movement is 1/8 in. (3 mm) or more (refer to TM 9-2320-387-24-1). For replacing the pulley, refer to TM 9-2320-387-24-1. REFERENCE INFORMATION STEERING SYSTEM Check for looseness in idler arm and pitman arm, refer to TM 9-2320-387-24-1. For replacing center link, refer to (para. 8-20.1). For replacing tie rods, refer to TM 9-2320-387-24-1.