TM 9-2320-363-20-1
Table 3-1. Troubleshooting (Cont)
Malfunction
Test or inspection
Corrective action
AIR SYSTEM
1. LOSS OF AIR PRESSURE.
Step 1.
Check for leaks in lines and fittings.
Replace damaged components (pages 4-454 thru 4-483).
Step 2.
Check for faulty air supply tanks or components.
Replace damaged components (pages 4-454 thru 4-483).
2. LOSS OF AIR SUPPLY FUNCTION.
Step 1.
Check for blocked or kinked lines.
Replace damaged lines (pages 4-487, 4-503).
Step 2.
Check for faulty valves.
Replace faulty valves (pages 4-528, 4-530, 4-532, 4-534, 4-546,
4-549, 4-572).
3. AIR DRYER LEAKS.
Check for faulty seal.
Replace filter seal (page 4-560 or 4-561.0).
4. AIR DRYER FAILS TO ABSORB POLLUTANTS.
Step 1.
Check for dirty filter(s).
Service (page 4-560 or 4-561.0) or replace air dryer (pages 4-552,
4-556, or 4-559.0).
Step 2.
Check for contaminated desiccant beads (drying beads).
Service (page 4-560 or 4-561.0) or replace air dryer (pages 4-552,
4-556, or 4-559.0).
Step 3.
Check for faulty purge valve.
Service (page 4-560 or 4-561.0) or replace air dryer (pages 4-552,
4-556, or 4-559.0).
STEERING SYSTEM
1. LOSS OF STEERING CONTROL.
Step 1.
Check for failed mounting of steering wheel to steering column shaft.
Replace steering wheel or column shaft (page 4-606).
Change 3 3-87
