TM 9-2330-231-14&P
ORGANIZATIONAL TROUBLESHOOTING - CONTINUED
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4. NO BRAKES OR WEAK BRAKES.
Step 1.
Check fluid level in master cylinder.
Step 2.
Check for proper operation of emergency relay valve.
WARNING
Before performing any maintenance on brake system, disconnect air supply from trailer and drain
trailer air reservoir. Failure to do so may result in serious injury.
Step 3.
Check airbrake chamber for excessive travel.
Step 4.
Check for worn brake lining.
Step 5.
Inspect wheel cylinders for possible binding and leaking.
5. GRABBING OR DRAGGING BRAKES.
Step 1.
Check parking brake adjustment.
Step 2.
Check wheel bearing adjustment.
Step 3.
Check service brake assembly.
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