TM 9-2330-381-14
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
BRAKES - CONT
38.
SLOW BRAKE APPLICATION OR SLOW RELEASE
Step 1.
Check for low air pressure (leakage at connections, air lines, or valves).
a. If air lines/connections are leaking, repair or replace as needed (para. 4-48 and 4-49).
b. If a valve is leaking, remove and replace valve (para. 4-49).
Step 2.
Check for restrictions in air lines and hoses.
If air lines are restricted, clean or replace lines (para. 4-48 and 4-49).
Step 3.
Check air brake chamber operation.
a. If a single air brake chamber does not operate properly, remove and replace defective chamber
b. If a set of air brake chambers does not operate properly, remove and replace a relay valve
39.
BRAKES GRAB
Step 1.
Check for uneven brake adjustment (para. 4-10, item 3).
If brakes are out of adjustment, adjust brakes (para. 4-15).
Step 2.
Check for grease on brake linings.
If grease is on linings, replace brake shoes (para. 4-43) and replace inner bearing oil seal
Step 3.
Check for worn or loose brake linings (para. 4-10, item 3).
It brake linings are worn or loose, replace brake shoes (para. 4-43).
Step 4.
Check for excessively scored, cracked, or out-of-round brake drum (para. 4-10, item 3).
If brake drum is defective or if above steps do not correct malfunction, notify DS maintenance.
4-55
