CONTINUOUS AXLE OR WHEEL NOISE

TM 10-3930-638-24&P

2-37. AXLES AND DRIVE SHAFT ASSEMBLIES TROUBLESHOOTING (cont)

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

2. CONTINUOUS AXLE OR WHEEL NOISE (cont)

Step 2. (cont)

a. If end play is noticeable, adjust or replace wheel bearing (para 2-39f).

b. If end play is okay, proceed to step 3.

Step 3. Check axle shafts for damage (para 2-39f).

a. If axle shafts damaged, replace (para 2-39f).

b. If axle shafts are not damaged, notify direct support maintenance.

3. DIFFERENTIAL CARRIER ASSEMBLY OVERHEATING

Check lubricant level (para 2-39d).

Add lubricant (para 2-39d)

4. LUBRICANT LEAKING FROM DIFFERENTIAL CARRIER ASSEMBLY

Check axle breather for damage or clogged condition (para 2-39e).

a. If axle breather is damaged or clogged. clean or replace it (para 2-39e).

b. If axle breather is okay, notify direct support maintenance.

5. EXCESSIVE NOISE OR VIBRATION IN DRIVE SHAFT ASSEMBLIES

Step 1. Check for loose universal joint mounting bolts (para 2-39a, b and c).

a. If universal joint mounting bolts are loose, tighten (para 2-39a, b and c).

b. If universal joint mounting bolts are tight, proceed to step 2.

Step 2. Check drive shaft assemblies for insufficient lubrication, wear or damage (indicated by excessive

movement between universal joint and drive shaft assembly in any direction).

a. If drive shaft assemblies are insufficiently lubricated, lubricate (para 2-39a, b and c); if worn or

damaged, repair or replace drive shaft assembly (para 2-39a, b and c).

b. If drive shaft assemblies are lubricated and are not worn or damaged, check for a bent drive shaft

assembly (para 2-39a, b and c). Replace a bent drive shaft assembly (para 2-39a, b and c).