A
757 MAINTENANCE MANUAL
S 215-100
CAUTION: MAKE SURE ALL THE BOOST PUMP AND OVERRIDE PUMP SWITCHES ARE
_______ OFF. IF YOU OPERATE THE BOOST PUMPS OR OVERRIDE PUMPS FOR A LONG TIME, YOU CAN CAUSE DAMAGE TO THE PUMPS.
(75)
Make sure that all the fuel boost pump and fuel override pump switches are in the off position.
S 655-101
(76)
Refuel the fuel tank if no more work is necessary
(AMM 12-11-01/301).
G.
Test the Engine Fuel Shutoff Valves
S 865-102
(1)
Remove the DO-NOT-CLOSE tags and close these circuit breakers on the P6 panel:
(a)
6E1, FUEL VALVES L SPAR
(b)
6E2, FUEL VALVES R SPAR
S 865-103
(2)
Remove the DO-NOT-CLOSE tags and close these circuit breakers on the P11 panel:
(a)
11D33, FUEL DISAGREE ENBL L
(b)
11D34, FUEL DISAGREE ENBL R
S 865-104
(3)
Put the FUEL CONTROL switch on the P10 stand to the RICH-RUN position.
S 015-106
(4)
Get access to the actuator on the left engine fuel shutoff valve through the access door 551BB.
S 215-107
(5)
Make sure the manual override handle on the left engine fuel shutoff valve moves to the open position.
S 215-108
(6)
Make sure the SPAR VALVE disagreement light comes on while the left engine fuel shutoff valve moves to the open position.
S 865-109
(7)
Open these circuit breakers on the P6 panel and attach the
DO-NOT-CLOSE tags:
(a)
6H1, FIRE EXTINGUISHING ENG L BTL 1
(b)
6H2, FIRE EXTINGUISHING ENG L BTL 2
(8)
Pull the FIRE HANDLE for the left engine.
S 865-110
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A
757
MAINTENANCE MANUAL
S 215-111
(9)
Make sure the manual override handle on the left engine fuel shutoff valve moves to the closed position.
S 215-112
(10)
Make sure the SPAR VALVE disagreement light comes on while the left engine fuel shutoff valve moves to the closed position.
S 865-113
(11)
Put the FIRE HANDLE for left engine to the NORMAL position.
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本文链接地址：757 AMM 飞机维护手册 燃油 CHAPTER 28 - FUEL 3
