TM 5-3895-370-14&P
Table 4-4. Unit Troubleshooting Procedures - CONT.
Malfunction
Test or inspection
Corrective action
BRAKE SYSTEM (CONT)
Step 4. Inspect service air hose to suspect brake chamber for leaks.
If air hose leaks, tighten fitting or replace air hose (para 4-105).
If air hose does not leak, go to step 5.
Step 5. Inspect operation of brake chamber.
If brake chamber rod does not go back in chamber smoothly, notify DS maintenance.
If brake chamber rod goes back in chamber smoothly, go to step 6.
Step 6. Check pressure on service air hose to one brake chamber.
If pressure is not 60 ±5 psi (414 ±34), replace ratio relay valve (para 4-104).
If pressure is 60 +5 psi (414 +34), go to step 7.
Step 7. Inspect slack adjuster operation and check adjustment.
If slack adjuster is damaged or not adjusted properly, notify DS maintenance.
If slack adjuster is not damaged and adjusted properly, go to step 8.
Step 8. Inspect brake components for damage.
If brake components are damaged, replace damaged components (para 4-97).
If brake components are not damaged, fault not corrected. Notify supervisor.
30.
PARKING BRAKES DO NOT APPLY OR APPLY SLOWLY.
Step 1. Inspect that brakes are not caged.
If brakes are caged, uncage brakes (para 4-98).
If brakes are not caged, go to step 2.
Step 2. Inspect service air hose to suspect brake chamber for damage.
If air hose is damaged, replace air hose (para 4-105).
If air hose is not damaged, go to step 3.
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