WHEELS AND TIRES

TM 9-2320-279-20-1

Troubleshooting Malfunctions (Cent)

12-15. TROUBLESHOOTING INSTRUCTIONS

2-9. Troubleshooting

Malfunction

Test or Inspection

Corrective Action

DUAL AIR BRAKE SYSTEM

10. FRONT AXLE PARKING BRAKES WILL NOT RELEASE

788

TOP VIEW

AUXILIARY FRONT BRAKE

Step 1. Remove cover from auxiliary front brake valve (para 11-2 1.2). Release front axle parking

brakes (TM 9-2320-279-10). Loosen line 789 at air brake valve.

valve

11-21.2).

If air comes out of air brake valve, replace air

Step 2. Release spring brakes (TM 9-2320-279-10). Loosen line 788 at inversion valve.

11-21 .2).

If air comes out of inversion valve, replace inversion valve

WHEELS AND TIRES

1. TIRE UNEVENLY WORN.

Step 1. Check wheel bearings for looseness.

12-2 or 12-3), replace if damaged (para 12-2 or 12-3).

Adjust wheel bearings

Lubricate wheel bearings as required (LO 9-2320-279-12).

Step 2. Check for damaged tie rods or drag links.

Replace damaged tie rods (para 13-5).

13-4).

Replace damaged drag links

Step 3. Notify the supervisor for wheel alinement.