TM 9-2320-387-24-1
8-24
Change 1
8-9. FRONT WHEEL TOE-IN ALIGNMENT
INITIAL SETUP:
Tools
General mechanic’s tool kit:
automotive (Appendix B, Item 1)
Materials/Parts
Chalk (Appendix C, Item 20)
Personnel Required
One mechanic
One assistant
Manual References
TM 9-2320-387-10
TM 9-2320-387-24P
Equipment Condition
• Tires inflated to proper pressure (TM 9-2320-387-10).
• Vehicle on level ground.
Maintenance Level
Unit
This task covers:
a. Preliminary Inspection
c.
Toe-in Adjustment
b. Toe-in Check
NOTE
• It is not necessary to perform front wheel toe-in alignment prior
to the scheduled semiannual or 3,000 mile (4,827 km) mainte-
nance interval unless abnormal vehicle handling or control is
reported, or it is directed by another maintenance task.
• Front wheel alignment adjustments other than toe-in are per-
formed by GS maintenance (Chapter 34).
• Ensure M1113 models have S250 shelter installed before per-
forming front wheel toe-in alignment.
1.
Check all tires (6) for uniform tread wear.
2.
Raise vehicle and place support under lower control arms (9).
3.
Check geared hubs (4) for output spindle end play by grasping edges of tires (6) and attempting to
move tires (6) up and down. Adjust spindle bearings (para. 6-12) if any spindle movement is apparent.
4.
Check for looseness of upper ball joints (3) by grasping top of tires (6), and attempting to move
tires (6) in and out. Replace upper ball joints (3) (para. 6-23) if tire (6) movement at top outer edge of
tires (6) is 3/8 in. (9 mm) or more.
5.
Check for looseness of lower ball joints (7) by grasping bottom of tires (6), and attempting to move
tires (6) in and out. Replace lower ball joints (7) (para. 6-24) if tire (6) movement at bottom outer edge of
tires (6) is 1/2 in. (13 mm) or more.
6.
Lower vehicle.
7.
Check for looseness of tie rod ends (5) by attempting to move tie rods (8) vertically and horizontally.
Replace tie rod end(s) (5) (para. 8-16) if any movement is apparent.
8.
Check for damaged control arm bushings (1). Replace upper control arms (2) (para. 6-25) or lower
control arms (9) (para. 6-26) if bushings (1) are damaged.
a. Preliminary Inspection
