TM 9-2330-390-14&P
Table 4-2. Unit Troubleshooting (Con’t).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 2.
Check for damage to airbrake chambers.
Replace damaged airbrake chambers (see paragraph 4-61).
Step 3.
Check for properly adjusted brakes (see paragraph 4-59).
Perform minor brake adjustment (see paragraph 4-59).
Step 4.
Check wheel bearing adjustment (see paragraph 4-75).
Adjust wheel bearings (see paragraph 4-75).
Step 5.
Remove hub and brakedrum (see paragraph 4-75). Inspect brakedrum for damage. Inspect wheel
bearings for wear. Inspect brakeshoes for damage, wear, or grease-soaked linings (see
paragraph 4-57).
Replace damaged brakedrum and worn wheel bearings (see paragraph 4-75).
If grease is found on brakeshoe linings, inspect wheel seal. Replace damaged wheel seal
(see paragraph 4-75).
Replace damaged, worn, or grease-soaked brakeshoes (see paragraph 4-57).
Step 6.
Notify Direct Support Maintenance to check brakedrums for out-of-round.
10. PARKING BRAKES (REAR DOLLY) DO NOT HOLD.
Step 1.
Check operation of parking brake lever. Check that lever moves freely up and down.
Replace damaged parking brake lever (see paragraph 4-69).
Step 2.
Check for damage to full function valve.
Replace damaged full function valve (see paragraph 4-66).
Step 3.
Check for damage to airbrake chamber.
Replace damaged airbrake chamber (see paragraph 4-61).
Step 4.
Check for properly adjusted brakes (see paragraph 4-59).
Perform minor brake adjustment (see paragraph 4-59).
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