757 AMM 飞机维护手册 燃油 CHAPTER 28 - FUEL 2(111)

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 S 415-006
 WARNING:_______DO THE AMM 32-00-15/201 DOOR LOCK INSTALLATION PROCEDURE. IF THE MAIN GEAR DOORS MOVE QUICKLY THEY CAN CAUSE INJURY OR DAMAGE.
 (6)  Open the main landing gear doors and install the door locks (AMM 32-00-15/201).
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 28-22-00
 ALL  ú ú 14 Page 506 ú Sep 28/00

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757
MAINTENANCE MANUAL

REAR KEELSPAR BEEM AFT ACTUATOR
FORWARD ACTUATOR
MANUAL OVERRIDE
HANDLE
(LEFT WHEEL WELL)

MANUAL OVERRIDE HANDLE (RIGHT WHEEL WELL)
ENGINE FUEL CROSSFEED VALVES A1
REAR SPAR
MANUAL
OVERRIDE
HANDLE

ACTUATOR
ENGINE FUEL SHUTOFF VALVE C1
1 PREFERRED
2 ALTERNATE
REAR SPAR KEEL BEEM AFT ACTUATOR FORWARD ACTUATOR
MANUAL OVERRIDE
HANDLE
(LEFT WHEEL WELL)

MANUAL OVERRIDE HANDLE (RIGHT WHEEL WELL)
ENGINE FUEL CROSSFEED VALVES A2
ACTUATOR
MANUAL
OVERRIDE
HANDLE

REAR SPAR
(DRY SIDE) (REF)

ENGINE FUEL SHUTOFF VALVE C2
Engine Fuel Feed System
Figure 502 (Sheet 3)

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 GUN 011-049, 105-999 ú 28-22-00
 ú ú 09 Page 507 ú Sep 20/98

B20783
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757
MAINTENANCE MANUAL

 D.  GUN 001-010, 051, 101-104; Test the Engine Fuel Crossfeed Valve
 S 865-008
 (1)  
Close this circuit breaker on the P11 panel:

 (a)  
11D36, FUEL CROSSFEED

 S 215-009
 (2)  
Make sure these EICAS messages show on the top display:

 (a)  
L FUEL SYS PRESS

 (b)  
R FUEL SYS PRESS

 S 035-010
 (3)  
Remove the electrical connector from the pressure switch on the right fuel override pump (S10011).

 S 215-011

 (4)
Make sure these EICAS messages do not show on the upper display:

 (a)  
L FUEL SYS PRESS

 (b)  
R FUEL SYS PRESS

 S 215-012
 (5)  
Make sure these EICAS messages show on the top display:

 (a)  
L FWD FUEL PUMP

 (b)  
R FWD FUEL PUMP

 (c)  
L AFT FUEL PUMP

 (d)  
R AFT FUEL PUMP
　
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