AXLES AND DIFFERENTIAL CARRIER ASSEMBLIES TROUBLESHOOTING

TM 10-3930-638-24&P

3-18. AXLES AND DIFFERENTIAL CARRIER ASSEMBLIES TROUBLESHOOTING

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

1. CONTINUOUS AXLE OR WHEEL NOISE

Before raising wheel off ground, be sure that shipping lock pin is

installed. Failure to do so may cause vehicle to turn and slip off

jack or jack stands causing serious injury or death. If you are

injured by falling equipment, obtain medical aid immediately.

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

If axle shafts are not damaged, replace differential carrier assembly (para 3-20c or 3-20d)

and notify general support maintenance.

2. LUBRICANT LEAKING FROM DIFFERENTIAL CARRIER ASSEMBLY

Step 1. Check if lubricant is leaking between axle housing and differential carrier assembly.

a. If lubricant is leaking between axle housing and differential carrier assembly, remove differential

carrier assembly, clean mating surfaces, apply sealer, and reinstall (para 3-20c or 3-20d).

b. If lubricant is not leaking between axle housing and differential carrier assembly, proceed to

step 2 below.

Step 2. Check if lubricant is leaking from differential carrier assembly housing (indicating cracked housing)

or from area near yoke.

Remove and replace differential carrier assembly (para 3-20c or 3-20d) and notify general support

maintenance (housing, oil slinger, or shims may require replacement).