(26)
 Remove electrical power if it is not necessary (AMM 24-22-00/201).

 S 862-086
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 28-26-00
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 ú ú  ú 02.101 ú  Page 215Sep 28/99 

A

757 MAINTENANCE MANUAL
 DEFUELING - ADJUSTMENT/TEST
___________________________
 1.  General_______
 A.  This procedure contains an operational test of the defueling system. The test makes sure the electrical defueling components operate correctly.
 TASK 28-26-00-735-001
 2.  System Test - Defueling_______________________
 A.  References
 (1)  
AMM 06-44-00/201, Wing Access Panels and Doors

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

 (3)  
AMM 27-81-00/201, Leading Edge Slat System

 B.  
Access

 (1)  
Location Zones
 621 Leading Edge to Front Spar (Right)
 738 Left MLG Oleo Door
 744 Right MLG Oleo Door

 (2)  
Access Panel
 621GB Fueling Station Door (Right)

 C.  
Prepare for the Test

 S 865-002
 (1)  
Supply electrical power (AMM 24-22-00/201).

 S 865-003

 (2)  
Close these circuit breakers on the main power distribution panel, P6:

 (a)  
6E5, FUELING CONTROL

 (b)  
6E6, FUELING VALVE

 S 865-004
 (3)  
Close these circuit breakers on the APU external power panel, P34:

 (a)  
34A9, FLNG VALVES

 (b)  
34A11, FLNG CONT

 S 865-005
 (4)  
Close these circuit breakers on the miscellaneous electrical equipment panel, P70:

 (a)  
70B14, L TANK DEFUEL VALVE

 (b)  
70B15, R TANK DEFUEL VALVE

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A

757
MAINTENANCE MANUAL

DEFUELING VALVE ACTUATOR
SEE A
DEFUELING VALVE ACTUATOR  DEFUELING VALVE ACTUATOR 
　
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