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TM 9-2330-272-14
Table 4-2. Organizational Troubleshootlng (Con’t).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 3.
Check for leaking or damaged master cylinder.
Replace master cylinder (para 4-32).
Step 4.
Check for air in hydraulic brake system.
Bleed brakes (para 4-35).
Step 5.
Check for leaking or damaged wheel cylinder.
Replace wheel cylinder (para 4-33).
Step 6.
Check for weak or broken brakeshoe return spring.
Replace return spring (para 4-30).
8 . BRAKES GRAB.
Step 1.
Check service brake adjustment.
Adjust service brakes (para 4-31).
Step 2.
Check for loose or worn wheel bearings.
Adjust or replace wheel bearings (para 4-44).
Step 3.
Check for loose or worn brakeshoe linings.
Replace brakeshoes (para 4-30).
Step 4.
Check for cracked, scored, or deformed brakedrum.
Replace brakedrum (para 4-44).
9 .
BRAKES DRAG (ONE OR MORE BRAKEDRUMS RUNNING HOT).
Step 1.
Check service brake adjustment.
Adjust service brakes (para 4-31).
Step 2.
Check for weak or broken brakeshoe return spring.
Replace return spring (para 4-30).
Step 3.
Check for out-of-round brakedrum.
Replace brakedrum (para 4-44).
10. UNEVEN BRAKING.
Step 1.
Check service brake adjustment.
Adjust service brakes (para 4-31).
4-14
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