G Close dump valve. Shut down hydraulic system. Disconnect hydraulic
actuator from rear door (p 9-30) and allow to hang from ceiling. Remove flow
control valve and hydraulic line to valve actuator tee connection. Install
jumper hose between pilot check valve and actuator tee connection. Reinstall
actuator to upper rear door (p 9-30). Turn on hydraulic system. Hold upper
rear door switch in UP position. If actuator opens door, replace flow control
valve. If actuator does not open door, replace pilot check valve (p 16-30).
H Remove inlet and outlet hydraulic hoses from tee connectors. Install tee
connector and gage between inlet and outlet hoses. Turn on hydraulic
system. Operate upper rear door switch in both UP and DOWN position.
Gage should indicate at least 300 psi. If limited or no pressure is indicated
replace or repair hydraulic lines between actuator and direction control valve.
If sufficient pressure is indicated, replace actuator (p 9-30).
2-223
Change 4
TM 9-2350-267-20