TM 9-2350-287-10CREW CONTROLS AND INDICATORS (Upper Rear Door [Ballistic Shield]) (continued)Upper Rear DoorSwitch-BottomThis switch is identical to switch at top and is operatedthe same way.The bottom switch is positioned just inside left side oflower rear door, well within reach of personnel outsidevehicle.Upper Rear DoorDump ValveThe valve is used to permit opening and closingof the door if hydraulic system fails.Opening the valve allows hydraulic fluid tobypass flow-restrictive devices in circuit.The valve should be used to open or close doormanually only in emergencies.2-16
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