TB-9-2320-335-13-P
TRUCK, UTILITY: EXPANDED CAPACITY, IAP/ARMOR READY
TECHNICAL BULLETIN; OPERATOR AND FIELD MAINTENANCE AND REPAIR PARTS AND SPECIAL TOOLS LIST (RPSTL) INSTRUCTIONS
MAY 2008
TB-9-2320-335-13-P - Page 77 of 680
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.
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