TM 5-3805-262-34
2-9. FRONT AXLE TROUBLESHOOTING
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. EXCESSIVE VIBRATION.
Step 1.
Check if front axle dif-
ferential assembly pinion
nut is loose.
a. If pinion nut is
loose, tighten to
800 to 1100 lb-ft.
b. If pinion nut is
not loose, go to
step 2 below.
Step 2.
Remove front axle differential assembly (page 3-362).
Check adjustment of
a. If differential
4-231) .
differential bearings (page 4-231).
bearings are not adjusted properly, adjust (page
b. If differential
below.
Step 3.
Check adjustment of
bearings are adjusted properly, go to step 3
ring gear backlash (page 4-232).
a. If adjustment of ring gear is not okay, adjust (page 4-232).
b. If ring gear adjustment is okay, go to step 4 below.
Step 4.
Check ring gear tooth contact (page 4-232).
a. If ring gear tooth contact is not okay, adjust ring gear back-
lash (page 4-232).
b. If ring gear tooth contact is okay, go to step 5 below.
Step 5. Remove differential case and gear assembly from differential assem-
bly (page 4-218).
Check cone and rollers for wear or damage (page 4-237).
a. If cone and rollers are worn or damaged, replace.
b. If cone and rollers are okay, go to step 6 below.
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