TM 9-2330-247-14&P
Table 3-1. Operator/Crew Troubleshooting (Con't).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 2.
Check that trailer air couplings are properly connected to towing vehicle air couplings.
If couplings are not properly connected, connect (para 2-10).
Check that pressure tank draincock is closed.
Step 3.
If draincock is open, close draincock (para 2-10).
Check air lines and couplings for leaks.
Step 4.
If air couplings are leaking, clean (para 3-8).
If air lines and couplings are still leaking, notify Organizational Maintenance.
4.
BRAKES GRAB.
WARNING
Airstream from open draincock could cause eye injury. Wear protective goggles when
working with air under pressure. Failure to do so could result in eye injury.
Check for moisture in pressure tank by opening draincock (para 3-9).
If moisture is in pressure tank, drain moisture and close draincock (para 3-9).
If pressure tank is dry and brakes still grab, notify Organizational Maintenance.
HANDBRAKE DOES NOT WORK.
5.
Adjust handbrake lever (para 3-7).
Step 1.
If handbrake still does not work, notify Organizational Maintenance.
Step 2.
RETRACTABLE SUPPORTS
RETRACTABLE SUPPORT DIFFICULT TO RAISE OR LOWER.
6.
Notify Organizational Maintenance if retractable support does not move freely.
