Table 8. Rear Axle Troubleshooting Procedures.

TM 9-2320-312-24-1

TROUBLESHOOTING PROCEDURES - CONTINUED

0006 00

NOTE

For additional rear axle troubleshooting, refer to Group 090 Commercial Service Manuals.

Table 8. Rear Axle Troubleshooting Procedures.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

1. Differential Overheating.

Remove differential fill plug and

a. Add fluid as required (WP

0008 00 and WP 0009 00).

check fluid level.

b. Notify DS Maintenance.

2. Differential or Wheel Noise.

1. Check for loose or missing

Replace missing lug nuts.

lug nuts at each wheel.

Retorque lug nuts to 500 lb-ft

(678 Nm).

2. Remove differential fill plug

a. Add fluid as required (WP

and check fluid level.

0008 00 and WP 0009 00).

b. If fluid level is OK, notify

DS Maintenance.

3. Remove wheel end fill plugs

a. Add fluid as required (WP

and check fluid level.

0008 00 and WP 0009 00).

b. If fluid level is OK, notify

DS Maintenance.

NOTE

For additional service brake system troubleshooting, refer to Group 080 Commercial Service Manuals.

Table 9. Service Brake System Troubleshooting Procedures.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

If slack adjusters, S-cams or

1. Front Brakes Locked or Overheated.

1. Inspect slack adjusters, S-

cams, and shafts for damage

shafts are damaged, replace

and proper adjustment.

(Group 080 Commercial Service

Manuals).

Replace worn or damaged

2. Remove front brakedrums

and inspect brakeshoes and

components

(Group

080

brake

components

for

Commercial Service Manuals).

excessive

wear

and/or

damage.

Replace leaking or damaged

3. Inspect

front

airbrake

chambers and air hose for air

airbrake chambers or air hose

leaks and damage.

(WP 0031 00 or WP 0066 00).

0006 00-25