757 AMM 飞机维护手册 燃油 CHAPTER 28 - FUEL 2(88)

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 C.  Removal/installation procedures are the same for all actuators.
 D.  This procedure contains two tasks. The first task is to remove the actuator of the fueling shutoff valve. The second task is to install the actuator of the fueling shutoff valve.
 TASK 28-21-12-004-001
 2.  Remove the Actuator of the Fueling Shutoff Valve (Fig. 401)________________________________________________
 A.  References
 (1)  
AMM 06-44-00/201, Wing Access Doors and Panels

 (2)  
AMM 24-22-00/201, Electric Power Control

 (3)  
AMM 32-00-15/201, Landing Gear Door Locks

 (4)  
AMM 32-00-20/201, Landing Gear Downlocks

 B.  
Access

 (1)  
Location Zones
 551 Rear Spar to MLG Support Beam (Left)
 651 Rear Spar to MLG Support Beam (Right)

 (2)  
Access Panels
 551EBX Access Door (Left)
 651EBX Access Door (Right)

 C.  
Procedure

 S 864-002
 (1)  
Open these circuit breakers on the overhead circuit breaker panel, P11, and attach the DO-NOT-CLOSE tags:

 (a)  
11C34, FUEL QTY 1 OR FUEL QTY L

 (b)  
11L19, FUEL QTY 2 OR FUEL QTY R

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A

757
MAINTENANCE MANUAL

SEEA SEEA
BOLT (3 LOCATIONS) 
REAR SPAR (DRY SIDE) 
SEE  B  O-RING  WASHER (3 LOCATIONS) 
BOLT (EXAMPLE)
ACTUATOR 

RETAINING NUT ACTUATOR  O-RING O-RING 
REAR SPAR 
ELECTRICAL CONNECTOR 
A  B 

Fueling Shutoff Valve Actuator Installation
Figure 401

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A
757 MAINTENANCE MANUAL
 S 864-004
 (2)  
Open these circuit breakers on the power distribution panel, P6, and attach the DO-NOT-CLOSE tags:

 (a)  
6E4, FUELING QTY

 (b)  
6E5, FUELING CONTROL

 (c)  
6E6, FUELING VALVE

 S 864-003
 (3)  
Open these circuit breakers on the APU external power panel, P34, and attach the DO-NOT-CLOSE tags:
　
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