757 AMM 飞机维护手册 燃油 CHAPTER 28 - FUEL 3(17)

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 C.  It is necessary to defuel the fuel tank to remove the adapter shaft or valve body.
 D.  This procedure contains five tasks. The first task removes the adapter shaft of the engine fuel shutoff valve. The second task installs the adapter shaft of the engine fuel shutoff valve. The third task aligns the adapter shaft. The fourth task removes the valve body of the engine fuel shutoff valve. The fifth task installs the valve body of the engine fuel shutoff valve.
 E.  The procedure to remove and install the actuator of the engine fuel shutoff valve is contained in AMM 28-22-11/401.
 TASK 28-22-01-004-001
 2.  Remove the Adapter Shaft of the Engine Fuel Shutoff Valve (Fig. 401)_________________________________________________________
 A.  References
 (1)
AMM 28-11-00/201, Fuel Tanks

 (2)
AMM 28-11-01/401, Main Tank Access Door

 (3)
AMM 28-22-11/401, Engine Fuel Shutoff Valve Actuator

 (4)
AMM 28-26-00/201, Defueling

 B.  
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)

 C.  
Remove the Adapter Shaft of the Engine Fuel Shutoff Valve

 (1)
Defuel the applicable main fuel tank (AMM 28-26-00/201).

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757 MAINTENANCE MANUAL
ACTUATOR ACTUATOR
OUTPUT MOUNTING
SHAFT SCREW ADAPTER PLATE
FUEL
1. VALVE LINE
BODY 3. O-RING
2. ADAPTER SHAFT ACTUATOR
MANUAL OVERRIDE
HANDLE10. SUPPORT
BRACKETENGINE FUEL
SHUTOFF VALVE
SEE  A  FWD  INBD  4. WASHER 
(EXAMPLE) 
5. BOLT 
9. FLEXIBLE  (EXAMPLE) 
FULL  6. SCREW 
COUPLING  7. WASHER  REAR SPAR 
8. NUT  (DRY SIDE) 
(4 LOCATIONS) 

ENGINE FUEL SHUTOFF VALVE
A1 ACTUATOR OUTPUT SHAFT
ACTUATOR ADAPTER
MOUNTING PLATE
SCREWFUEL LINE
3. O-RING
1.
 VALVE BODY

2.
 ADAPTER

SHAFT INDEX ALIGNMENT MARKS ACTUATOR
MANUAL OVERRIDE
10. SUPPORT HANDLE
BRACKET REAR SPAR (DRY SIDE)
4. WASHER
9. FLEXIBLE  (EXAMPLE)
　
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