TM-9-2320-273-34
TRUCK TRACTOR, LINE HAUL; LIGHT EQUIPMENT TRANSPORTER; TRUCK CHASSIS; MEDIUM EQUIPMENT TRANSPORTER
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
DECEMBER 1980
TM-9-2320-273-34 - Page 32 of 801
TM 9-2320-273-34
Table 2-8. Brake Troubleshooting procedures (Continued).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4.
COMPRESSOR DOES NOT UNLOAD.
Step 1.
Check air governor for proper operation (TM 9-2320-273-20).
Adjust or replace (TM 9-2320-273-20).
Step 2.
Check for defective unloader or cap guide seal (para 14-2).
Repair or replace (para 14-3 through 14-8).
Step 3.
Check for unloading cavity plugged with carbon.
Repair or replace (para 14-3 through 14-8).
Step 4.
Check for binding unloading cap.
Repair or replace (para 14-3 through 14-8).
Step 5.
Check unloader spring for failure.
Replace (para 14-3 through 14-8).
Step 6.
Check unloader cap for proper seat on intake valve seat.
Repair or replace (para 14-3 through 14-8).
5.
COMPRESSOR HEAD IS LEAKING WATER.
Step 1.
Check capscrews for proper torque.
Torque properly (para 14-3 through 14-8).
Step 2.
Check for cracked or porous head or head cover.
Replace (para 14-3 through 14-8).
Step 3.
Check fittings for proper installation.
Install properly.
2-16
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