TM 9-2320-365-10Table 3-2. Troubleshooting (Cont)MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTIONi2. REAR BRAKES DO NOT APPLY (CONT).(d) If either FRONT BRAKE AIR or REAR BRAKE AIR pressure gages do not register 120 psi(827 kPa), notify Unit Maintenance.(e) If rear brakes still do not apply, notify Unit Maintenance.i3. PARKING BRAKE(S) WILL NOT RELEASE.Check to see if air tanks are pressurized.(a) Start engine (para 2-21a or b).(b) Allow engine to idle until 120 psi (827 kPa) is registered on FRONT BRAKE AIR and REARBRAKE AIR pressure gages.(c) Shut down engine (para 2-21f).(d) If either FRONT BRAKE AIR or REAR BRAKE AIR pressure gages do not register 120 psi(827 kPa), notify Unit Maintenance.(e) If parking brake(s) still will not release, notify Unit Maintenance.i4. FRONT BRAKES OVERHEAT AND/OR DO NOT RELEASE.Step 1. Check tires for proper inflation and damage (para 2-15, item 38).(a) If tires are improperly inflated, start engine (2-21a or b) and select correct CTIS mode.(b) Shut down engine (para 2-21f).(c) Check for proper inflation.(d) If tires are damaged, notify Unit Maintenance.Step 2. Inspect front gladhands.(a) Check front gladhands for damage and air leaks.If damage is present or air leaks are heard, notify Unit Maintenance.(b) Remove dummy couplings and check for obstructions.If gladhands are obstructed, clean gladhands.(c) Inspect and lubricate coupler seals (Appendix F)(d) Ensure that dummy couplings are properly installed.(e) If front brakes still overheat, notify Unit Maintenance.Change 1 3-70.1
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