Table 4-1. Unit Troubleshooting Chart (cont).
BRAKE SYSTEM (cont).
1. BRAKES DO NOT APPLY/WEAK BRAKES, GRABBING
OR UNEVEN BRAKING ACTION (cont).
Continued from step B
C. Pull dolly set again, noting which wheels reotate.
If one or more-wheels rotate, inspect brakes for
ARE BRAKES ADJUSTED CORRECTLY?
Adjust brakes (para 4-37).
D. Bleed hydraulic brake system (para 4-38).
IS AIR OUT OF LINES?
E. Release towing vehicle service brake. Un-
couple dolly set from towing vehicle (para 2-16).
Remove tires and brakedrums from wheels
(paras 4-46 and 4-47). Inspect brakeshoes for
excessive wear (pare 4-37).
DOES BRAKESHOE WEAR EXCEED LIMITS?
cylinders (para 4-38).