(12)
 Attach the index screws with lockwire.

 (13)
 Install the defueling valve actuator (AMM 28-26-02/401).

 S 434-094
 S 414-095
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757 MAINTENANCE MANUAL
 TASK 28-26-01-004-012
 5.  Remove the Valve Body of the Defueling Valve (Fig. 401)____________________________________________
 A. References
 (1)  
AMM 28-11-00/201, Fuel Tanks

 (2)  
AMM 28-11-02/401, Center Tank Access Door

 (3)  
AMM 28-25-05/401, APU Fuel Line and Shroud

 (4)  
AMM 28-26-00/201, Defueling

 B.
Access

 (1)  
Location Zones
 531 Center Wing Tank (Left)
 631 Center Wing Tank (Right)

 (2)  
Access Panels
 531CB Center Tank Access Door (Left)
 631CB Center Tank Access Door (Right)

 C.
Procedure

 S 654-047
 (1)  
Defuel the center, left and right main fuel tanks
 (AMM 28-26-00/201).

 S 654-048

 (2)  
Drain and purge the center fuel tank (AMM 28-11-00/201).

 S 014-013

 (3)  
Open the applicable left or right center tank access door, 531BB or 631BB (AMM 28-11-02/401).

 S 944-014
 WARNING:_______OBEY THE FUEL TANK ENTRY PRECAUTIONS. FAILURE TO OBEY THE FUEL TANK ENTRY PRECAUTIONS COULD CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (4)  
Obey the fuel tank entry precautions (AMM 28-11-00/201).

 (5)
Go into the center fuel tank and find the valve body (10).

 S 034-015

 (6)  
Disconnect the flexible full coupling (11) from each side of the valve body (10) (AMM 28-25-05/401).

 S 014-049
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MAINTENANCE MANUAL

 S 034-016
 (7)  
Hold the valve body (10) and remove the four valve bolts (8) that attach the valve body (10) to the support bracket (2).

 S 024-017

 (8)  
Disengage the valve body (10) from the adapter shaft (1).
　
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