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TM 9-2330-272-14
Table 3-1. Operator/Crew Troubleshooting (Con’t).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4.
BRAKES WILL NOT RELEASE.
Step 1.
Check that towing vehicle brake is not applied.
Release towing vehicle brake. Refer to towing vehicle technical manual.
Step 2.
Check for closed air shutoff valves on towing vehicle.
Open air shutoff valves. Refer to towing vehicle technical manual.
Step 3.
Check air couplings for proper connections.
Connect air couplings (para 2-10).
Step 4.
Check that air reservoir draincock is closed.
Close air reservoir draincock.
5.
NO BRAKES OR WEAK BRAKES.
Step 1.
Check for closed air valves on towing vehicle.
Open air shutoff valves. Refer to towing vehicle technical manual.
Step 2.
Check air couplings for proper connections.
Connect air shutoff couplings (para 2-10).
Step 3.
Check that air reservoir draincock is closed.
Close air reservoir draincock.
Step 4.
Check for brake fluid leaks.
If brake fluid is leaking, notify Organizational Maintenance.
Step 5.
Check towing vehicle for proper air pressure. Refer to towing vehicle technical manual.
If air pressure is low, build to normal pressure.
6.
SLOW APPLICATION OR SLOW RELEASE OF BRAKES.
Check towing vehicle for proper air pressure. Refer to towing vehicle technical manual.
If air pressure is low, build to normal pressure.
TIRES
7.
ABNORMAL TIRE WEAR.
Step 1.
Check tires for proper inflation.
Inflate tires to proper pressure (para 1-11).
Step 2.
Check for loose wheel nuts.
Tighten wheels nuts. Notify Organizational Maintenance to apply proper torque.
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