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MAINTENANCE MANUAL
S 215-346
(4)
Make sure the FUEL XFEED VALVE - FWD switch-light on the P5 panel is on.
S 215-347
(5)
Make sure these EICAS messages show on the EICAS display:
(a)
L FUEL SYS PRESS
(b)
R FUEL SYS PRESS
(c)
FWD FUEL X-FEED
(d)
AFT FUEL X-FEED
NOTE: These messages show there is no pump pressure to
____ the engines and the forward and aft crossfeed relays are not energized.
S 865-348
(6)
Close this circuit breaker on the overhead circuit breaker panel, P11:
(a)
11A19, FWD FUEL CROSSFEED
S 215-351
(7)
Make sure the FUEL CROSSFEED VALVE - FWD switch-light is off.
S 215-352
(8)
Make sure these EICAS messages show on the EICAS dispaly:
(a)
L FUEL SYS PRESS
(b)
R FUEL SYS PRESS
(c)
AFT FUEL X-FEED
NOTE: The forward crossfeed relay is energized.
____
S 865-349
(9)
Close this circuit breaker on the overhead circuit breaker panel, P11:
(a)
11A20, AFT FUEL CROSSFEED
S 215-350
(10)
Make sure the FUEL XFEED VALVE - AFT switch-light is off.
S 215-353
(11)
Make sure these EICAS messages show on the EICAS display:
(a)
L FUEL SYS PRESS
(b)
R FUEL SYS PRESS
NOTE: The FWD and AFT FUEL X-FEED messages do not show
____ because the forward and aft crossfeed relays are energized.
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MAINTENANCE MANUAL
S 865-354
(12)
Open this circuit breaker on the P11 panel:
(a)
11A19, FWD FUEL CROSSFEED
S 215-355
(13)
Make sure the FUEL XFEED VALVE - FWD switch-light on the P5 panel is on.
S 215-356
(14)
Make sure the these EICAS messages show on the EICAS display:
(a) L FUEL SYS PRESS
(b) R FUEL SYS PRESS
(c) FWD FUEL X-FEED
NOTE:____ The aft fuel crossfeed relay is energized.
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本文链接地址：757 AMM 飞机维护手册 燃油 CHAPTER 28 - FUEL 2(114)
