TM 9-2330-235-14&P
Table 4-2. Organizational Troubleshooting (Con't).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
8.
NO BRAKES OR WEAK BRAKES.
Step 1.
Check for excessive airbrake chamber pushrod travel (para 4-22).
Adjust brakes (para 4-23 or 4-24).
Step 2.
Check for clogged air filter.
Replace air filter (para 4-33 or 434) or air filter element (para 4-35) as required.
Step 3.
Check for air in hydraulic brake lines.
Bleed brakes (para 425).
Step 4.
Check for leaks in hydraulic brake system.
Tighten loose connections of replace leaking lines or tubes (para 4-31 or 4-32).
Step 5.
Check for grease on brakeshoe linings.
441).
Step 6.
Check for worn or damaged brakeshoe linings. Thickness of linings should be at least X in.(3.2 mm).
Replace brakeshoes (para 4-26 or 4-27).
9.
SLOW APPLICATION OR SLOW RELEASE OF BRAKES.
Step 1.
Check air pressure gage in towing vehicle for low air pressure.
Perform air system lines and hose leakage test (para 4-22). Replace defective components as
required (para 4-33 or 434).
Step 2.
Check for clogged air filter.
Replace air filter (para 4-33 or 434) or air filter element (para 435) as required.
Step 3.
Check for weak or broken brakeshoe return spring.
Replace brakeshoe return spring (para 4-26 or 4-27).
TIRES
10.
ABNORMAL TIRE WEAR.
Step 1.
Check for improper wheel bearing adjustment.
Adjust wheel bearings (para 4-40 or 4-41).
4-11
