TM 9-2350-287-10
TROUBLESHOOTING (continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
UPPER REAR DOOR (BALLISTIC SHIELD)
36. UPPER REAR DOOR DOES NOT OPERATE WHEN SWITCH IS ENGAGED
Step 1. Check flow-control valve setting.
Turn valve fully counterclockwise and attempt operation. Refer to page 3-36
for 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 electrical
failure. If valve is not manually operable, notify Unit maintenance of
hydraulic failure.
37. UPPER REAR DOOR CYLINDER OPERATION IS SLOW OR ERRATIC
Check 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 CLOSED
Check 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 OPERATION
Replace 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 Unit
maintenance.
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