TM 9-2350-287-10TROUBLESHOOTING (continued)MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTIONUPPER REAR DOOR (BALLISTIC SHIELD)36. UPPER REAR DOOR DOES NOT OPERATE WHEN SWITCH IS ENGAGEDStep 1. Check flow-control valve setting.Turn valve fully counterclockwise and attempt operation. Refer to page 3-36for adjustment procedure.Step 2. Check that hydraulic pressure is between 100 and 300 psi.If pressure is not within range, notify Unit maintenance.Step 3. Check that dump valve is closed.If dump valve is open, close dump valve.Step 4. Operate BALLISTIC SHIELD directional control valve manually.If valve can be operated manually, notify Unit maintenance of electricalfailure. If valve is not manually operable, notify Unit maintenance ofhydraulic failure.37. UPPER REAR DOOR CYLINDER OPERATION IS SLOW OR ERRATICCheck flow-control valve setting on upper rear door cylinder.Adjust flow-control valve (p. 3-39).If condition persists, notify Unit maintenance.38. UPPER REAR DOOR DRIFTS CLOSEDCheck to make sure upper rear door dump valve is closed.If dump valve is closed, notify Unit maintenance.AUTOMATIC FIRE EXTINGUISHING SYSTEM (AFES)39. LAMP DOES NOT LIGHT DURING LAMP TEST OR FAILS DURING OPERATIONReplace lamp (p. 3-47). Run lamp test (pp. 2-31 and 2-34).If new lamp or light-emitting diode (LED) does not light during test, notify Unitmaintenance.3-17
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