28-22-00
 ALL  ú ú 17 Page 511 ú Sep 28/01

A
757
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.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 28-22-00
 ALL  ú ú 12 Page 512 ú Sep 20/98

A
757
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.
　
中國航空網 m.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：757 AMM 飛機維護手冊 燃油 CHAPTER 28 - FUEL 2(114)