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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

 B.  
Access

 (1)  
Location Zones
 133 Wing Center Section (Left)
 134 Wing Center Section (Right)

 C.  
Procedure

 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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 28-22-12
 ALL  ú ú 13 Page 401 ú Sep 20/94

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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 
　
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本文鏈接地址：757 AMM 飛機維護手冊 燃油 CHAPTER 28 - FUEL 4