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757
MAINTENANCE MANUAL

ALIGNMENT 
REAR  TOOL 
SPAR  SEE  B 
DEFUELING 
VALVE 
SEE  A 
ADAPTER 
PLATE 
INDEX
PLATE 
BOTTOM 
INDEX 
ALIGN  SCREW 
SCREW 
(2 LOCATIONS) 
SCALE 
FWD 
DEFUELING VALVE 
LOCKSCREW 
A 

ALIGNMENT TOOL B
Alignment Tool Installation Figure 402
G03389
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757
MAINTENANCE MANUAL

 (5)  
AMM 28-22-01/401, Leak Check for the Engine Fuel Shutoff Valve (Spar Valve).

 D.
Access

 (1)  
Location Zones
 541 Main Tank - Rib No. 5 to No. 17 (Left)
 641 Main Tank - Rib No. 5 to No. 17 (Right)

 (2)  
Access Panels
 541AB Main Tank Access Door (Left)
 641AB Main Tank Access Door (Right)

 E.
Install the Adapter Shaft of the Engine Fuel Shutoff Valve

 S 944-020
 WARNING: OBEY THE FUEL TANK ENTRY PRECAUTIONS (AMM 28-11-00/201).
_______ FAILURE TO OBEY THE FUEL TANK ENTRY PRECAUTIONS COULD CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (1)  
Obey the fuel tank entry precautions (AMM 28-11-00/201).

 S 434-008

 (2)  
Install a new O-ring (3) on the adapter shaft (2) and align with the groove in the adapter plate.

 S 424-021

 (3)  
Put the adapter shaft (2) through the hole in the rear spar from out of the fuel tank.

 S 424-022

 (4)  
Engage the adapter shaft (2) with the valve body (1).

 S 824-023

 (5)  
Make sure the adapter plate moves freely in the opening of the rear spar.

 S 424-009

 (6)  
Install the four bolts (5) and washers (4) to attach the adapter shaft (2) to the rear spar.

 (7)  
Apply the sealant to the bolt (5) (AMM 51-31-01/201).

 S 394-024
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757 MAINTENANCE MANUAL
　
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