TM 9-2320-260-20
Table 2-2. Mechanical Troubleshooting (Contd).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 3. Check axle housing condition. Inspect axle housing for external evidence of gear oil.
If axle housing is leaking gear oil, notify your supervisor.
END OF TESTING!
36. CONTINUOUS AXLE OR WHEEL NOISE
Step 1. Check to see if transfer selector lever is in "LOW" position.
Place transfer selector lever in "HIGH" position when traveling on hard, flat surfaces,
Step 2. Check tires for improper inflation or damage.
a. Inflate tires to proper inflation (TM 9-2320-260-10).
b. Replace damaged tires (para. 9-3).
Step 3. Check for loose or missing wheel lug nuts or adapter nuts.
a. Tighten lug nuts or adapter nuts 450-500 lb-ft (610-678 Nm).
b. Replace missing lug or adapter nuts (para. 9-3).
Step 4. Check lubrication level in axle housing and differential.
Lubricate differential and axle housing to proper level (LO 9-2320-260-12).
Lubricate wheel bearings (LO 9-2320-260-12).
Step 6. Check for loose or damaged wheel bearings. Raise wheel off ground. Use prybar to check
for excessive play.
a. Adjust wheel bearings (para. 9-6).
b. Replace wheel bearings if damaged (para. 9-4 or 9-5).
Step 7. Inspect axle shaft for damage,
Replace damaged axle shaft (para. 7-10 or 7-12).
Step 8. Check differential oil seals for leaks.
If leaking, notify your supervisor.
Step 9. Check yoke oil seal for leaks.
If leaking, notify your supervisor.
END OF TESTING!
SUSPENSION
37. NOISY SUSPENSION
Step 1. Inspect leaf springs for breaks and damage.
Replace if damaged (para. 7-15 or 7-18).
Step 2. Check spring U-bolts and shackles for lack of lubrication, looseness, wear, or damage.
a. Lubricate as necessary (LO 9-2320-260-12).
b. Tighten loose U-bolts and shackles.
c. Replace worn or broken parts (para. 7-15, 7-16, or 7-17).
Step 3. Check rear spring seat pads for wear.
Replace spring seat pads if springs are rubbing against spring seat bracket (para. 7-18).
END OF TESTING!
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