757 AMM 飞机维护手册 燃油 CHAPTER 28 - FUEL 3(47)

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_______ THE DOORS OPEN AND CLOSE QUICKLY AND CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (22) Remove the door locks from the landing gear doors and close the doors (AMM 32-00-15/201).
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757
MAINTENANCE MANUAL

 S 864-020
 (23)
 Supply electrical power (AMM 24-22-00/201).

 S 864-163

 (24)
 Make sure these valves are closed:

 NOTE: If you do this test with these valves open (for example
____ during a fuel transfer operation), it is possible that the low pressure indicating light will not go off when you operate the pump.
 (a)
The engine fuel shutoff valve for the No. 1 tank

 (b)
The engine fuel shutoff valve for the No. 2 tank

 (c)
The crossfeed valve

 (d)
The defuel valve

 S 864-080
 (25) Push the applicable fuel boost pump or fuel override pump switch-light of the fuel management control panel on the overheadpanel, P5, to the ON position.
NOTE: Someone must be in the flight compartment when the pumps
____operate to continuously monitor for the low PRESS lights.
 ~................................................................. | PUMP | SWITCH-LIGHT | ................................................................... | Left aft fuel boost pump | L AFT PUMPS | ................................................................... | Left forward fuel boost pump | L FWD PUMPS | ................................................................... | Left fuel override pump *[1] | LEFT C PUMPS | ................................................................... | Right aft fuel boost pump | R AFT PUMPS | ................................................................... | Right forward fuel boost pump | R FWD PUMPS | ................................................................... | Right fuel override pump *[1] | RIGHT C PUMPS | 2...................................….............................1 *[1] The fueling station door (621GB) must be open before the
 left or right override pump will operate.
 S 284-081
 (26)
 Listen and make sure the applicable fuel boost pump or fuel override pump operates.

 S 214-082

 (27)
 Make sure the applicable PRESS light on the fuel management panel of the P5 panel goes off.

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