TM 9-2330-227-14&P
OPERATOR TROUBLESHOOTING - CONTINUED
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
7. BRAKES WILL NOT APPLY OR RELEASE - CONTINUED
WARNING
Failure to wear protective goggles when opening air reservoir draincock could cause
serious eye injury.
Check semitrailer air reservoir for open draincock.
Step 2.
b. If draincock is closed and brakes still will not apply, or apply
slowly, notify Organizational Maintenance.
Check air pressure of truck tractor.
Step 3.
If pressure is low, build up air pressure to normal level (see Truck
Tractor Operator's Manual).
Step 4.
If air lines are not properly connected (Emergency-to-Emergency, and
Check for dirty or leaking coupling connection.
Step 5.
b. If coupling is leaking, notify Organizational Maintenance.
Inspect brake air hoses and hydraulic lines and connectors for leaks.
Step 6.
If hoses or connectors are leaking, notify Organizational Maintenance.
Check for damaged or missing preformed packing in coupling.
Step 7.
If preformed packing is damaged or missing, notify Organizational
Maintenance.
8. BRAKES GRAB
Notify Organizational Maintenance.
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