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757 MAINTENANCE MANUAL ENGINE CROSSFEED VALVE ACTUATOR - REMOVAL/INSTALLATION ______________________________________________________ 1. General_______ A. The engine fuel crossfeed valve(s) contains three parts: an actuator, an adapter shaft and a valve body. B. The engine fuel crossfeed valve actuator(s) is (are) installed on the rear spar of the center fuel tank. It is not necessary to defuel the center fuel tank to remove the actuator(s). It is necessary to defuel the center fuel tank to remove the adapter shaft(s). It is necessary to defuel all the fuel tanks to remove the valve bodies. C. This procedure removes and installs one engine fuel crossfeed valve actuator, the removal and installation of the other actuator is the same. This procedure contains three tasks. The first task removes the engine fuel crossfeed valve actuator. The second task installs the engine fuel crossfeed valve actuator. The third task does a test of the engine fuel crossfeed valve(s). D. The procedure to remove and install the adapter shaft and valve body of the engine fuel crossfeed valve is contained in AMM 28-22-02/401. TASK 28-22-12-004-023 2. Remove the Actuator of the Engine Fuel Crossfeed Valve (Fig. 401, 401A)______________________________________________________ A. References (1) AMM 32-00-15/201, Landing Gear Door Locks
(2) AMM 32-00-20/201, Landing Gear Downlocks
(1) Location Zones 133 Wing Center Section (Left) 134 Wing Center Section (Right)
S 864-131 (1) GUN 001-010, 051, 101-104; Open this circuit breaker on the overhead circuit breaker panel, P11, and attach a DO-NOT-CLOSE tag:
(a) 11D36, FUEL CROSSFEED
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757 MAINTENANCE MANUAL
PLATE ADAPTER SHAFT OUTPUT ACTUATOR ACTUATOR MOUNTING SCREW CONNECTOR ELECTRICAL ACTUATOR SCREW SEE A ENGINE FUEL CROSSFEED VALVE MANUAL OVERRIDE HANDLE JUMPER BONDING VALVE BODY ADAPTER SHAFT REAR SPAR (DRY SIDE) FWD INBD ENGINE FUEL CROSSFEED VALVE A 1 SHAFT OUTPUT ACTUATOR PLATE ADAPTER MOUNTING SCREW ACTUATOR CONNECTOR ELECTRICAL ACTUATOR SCREW www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：757 AMM 飞机维护手册 燃油 CHAPTER 28 - FUEL 4
