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TM 5-4210-233-14&P-1
Table 4-2. Unit Troubleshooting - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
AIR SYSTEM/BRAKES - Continued
9
BRAKES ERRATIC OR SLOW TO OPERATE
Step
1.
Check air lines for leaks.
Repair or replace air lines (see para 4-147).
Step
2.
Check quick release, relay and spring brake valves for leaks.
Repair or replace valves (see para 4-145 through 4-156).
Step
3.
Check brake pedal valve for leaks.
Replace brake pedal valve (see para 4-151).
Step
4.
Check brake linings are clean.
Replace shoes if coated with oil or grease. Notify Direct Support.
Step
5.
Check brake adjustment.
Adjust slack adjusters (see para 4-146).
10
PARKING BRAKE-WILL NOT RELEASE
Step
1.
Check for leaks in secondary or emergency release circuits.
Replace hoses/fittings (see para 4-147).
Step
2.
Check quick release valves for leaks.
Repair brake quick release valves (see para 4-150).
Step
3.
Check parking brake chambers for leaks.
Notify Direct Support.
4-37
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