TM 9-2330-371-14&P
ORGANIZATIONAL TROUBLESHOOTING - CONTINUED
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
BRAKES
6. BRAKES WILL NOT RELEASE OR RELEASE SLOWLY.
Check for restrictions in air and hydraulic lines and hoses.
Step 1.
If air or hydraulic lines or hoses have a restriction, replace or repair
Check for leaking air chambers by coating connections and seams with soap
Step 2.
solution. No leakage is permissible.
If air chamber is leaking, replace chamber (page 4-84).
Check for leaking air filter or air filter splice by coating connections and seams
Step 3.
with soap solution. No leakage is permissible.
If air filter or splice is leaking, replace (page 4-108).
Apply tractor brakes and release. Emergency relay valve should vent brake
Step 4.
chamber air through exhaust port when tractor brakes are released.
If brake chamber air is not vented when tractor brakes are released,
replace emergency relay valve (page 4-110).
Check master cylinder for damage or leaking.
Step 5.
If master cylinder is damaged or leaking, replace master cylinder
Remove wheel and drum and check for weak or broken brakeshoe return spring
Step 6.
If return spring is weak or broken, replace spring (page 4-113).
Check brake cylinder for damage or leaking.
Step 7.
If wheel cylinder is damaged or leaking, replace (page 4-75).
If brakes still will not release or release slowly, notify Direct Support
Maintenance.
