TM 9-2330-386-14&P
ORGANIZATIONAL TROUBLESHOOTING TABLE - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
BRAKES - continued
3. BRAKES WILL NOT RELEASE - continued.
WARNING
T o prevent injury, keep hands away f r o m brake chamber
push rods and slack adjusters. They will move as service
brakes are operated, and will automatically apply if
s y s t e m pressure drops.
Step 7.
Using soapy water, check spring brake chambers for leaks at clamp
a . If leaks are seen at brake chamber clamp band, replace spring
b. If leaks are seen at hose fitting, tighten hose fitting or
c. If brake chambers are not leaking, go to step 8.
R e m o v e brake drum (para. 4-38) and check for broken brake shoe
S t e p 8.
tension springs.
4. NO BRAKES OR WEAK BRAKES.
Check air hoses for proper connection to towing vehicle.
Step 1.
a. If air hoses are not properly connected (Emergency to Emergency,
Service to Service), reconnect gladhands.
b. If hoses are properly connected, go to step 2.
Step 2. If towing vehicle is equipped with air line shut-off valves at the
g l a d h a n d s , check to make sure they are fully open. (See operator's
manual for towing vehicle).
a. If air line valves are shut off, open them fully.
b. If valves are open, go to step 3.
c. If towing vehicle is not equipped with shut-off valves, go to
step 3.
S t e p 3.
a. If either drain cock is open, close it.
b. If both drain cocks are closed, go to step 4.
4-15