TM 9-2320-363-10
Table 3-1. Troubleshooting (Con’t).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
If air leaks are present or reservoir pressure loss exceeds
5 psi (34 kPa) in two minutes, troubleshoot semitrailer.
3.
TRAILER BRAKES WILL NOT APPLY WHEN PEDAL OR HAND CONTROL
ON STEERING COLUMN IS USED.
Check intervehicular air hoses for proper connections to semitrailer.
Connect air hoses.
4.
TRAILER BRAKES WILL NOT RELEASE.
Step 1.
Check position of trailer brake hand control.
Move control to forward (OFF) position.
Step 2.
Check position of trailer air supply control knob.
Push knob in (ON).
Step 3.
Check intervehicular air hoses for proper connections.
Connect air hoses.
Step 4.
Check vehicle air system for leaks.
If leaks are found, notify Unit Maintenance.
If leaks are not found and vehicle components are not dam-
aged, troubleshoot semitrailer.
CTIS (M917A1 AND M917A1 W/MCS)
5.
CTIS SELECTOR PANEL INDICATES FIVE LIGHTS FLASHING.
Step 1.
Check whether air reservoir draincocks are closed and posi-
tion of trailer air supply control valve.
Close air reservoir draincocks and pull valve out (OFF).
Step 2.
Check condition of tires.
If tire has a slow leak or minor puncture, select RUN FLAT
on CTIS selector panel and continue operation. Change tire
as soon as tactical situation permits.
Step 3.
Check for broken or kinked air lines.
If air lines are broken or kinked, notify Unit Maintenance
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