TM9-2330-372-14&P
TABLE 4-2 ORGANIZATIONAL TROUBLESHOOTING TABLE-continued
Malfunction
Test or Inspection
Corrective Action
Step 3.
Check intervehicular hose coupling for wear or damage. Replace damaged hose coupling (para.
5. NO BRAKES OR WEAK BRAKES.
Step 1.
Check for low air pressure (leakage at all air line connections, air lines or emergency relay
valve).
a. If air lines/connections are leaking, repair or replace as needed.
b. If emergency relay valve is leaking, replace defective valve (para. 4-27).
c. If air lines connections or valves are not leaking, proceed to step 2.
Step 2.
Inspect for grease on brake linings.
a. If grease is present on brake linings replace defective oil seals and brake shoes (para. 4-19).
b. If grease is not present on brake lining, proceed to step 3.
Step 3.
Check for worn brake lining.
b. If brake lining is not worn, proceed to step 4.
Step 4.
Check brake adjustment.
b. If brakes are adjusted, proceed to step 5.
Step 5.
Check for relay valve operation by observing action of air brake chambers.
a. If air brake chambers do not operate, replace relay valve (para. 4-27).
b. If a single air brake chamber does not operate properly, repair or replace brake chamber
4-7