757 AMM 飞机维护手册电源 ELECTRICAL POWER 1(78)_航空信息_民用航空_通用航空

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switch (P5), is on.Start the right engine with the APU (Ref 71-00-00). 1) Make sure these results occur for approximately 30 seconds
during the right engine start: a) The yellow OFF light in the R UTILITY BUS switch (P5), comes on. b) The OFF light in the L UTILITY BUS switch (P5), stays
off.
c) The counter light at the aft galley is on.
d) The counter light at the forward galley is off.
e) The two BUS OFF lights (P5), stay off.

One minute after the right engine start, make sure these
results occur:
1) The DRIVE light, in the L (R) GEN DRIVE DISC switches (P5),

are off. 2) The OFF light, in the L (R) GEN CONT switches (P5), are
off. 3) The two BUS OFF lights (P5), are off. 4) The OFF light, in the APU GEN switch (P5), is off.
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757 MAINTENANCE MANUAL
5) The OFF light, in the L (R) UTILITY BUS switches (P5) are off. 6) The counter lights at the forward and aft galleys are on.
(p) Push the APU GEN switch (P5), to the OFF position. 1) Make sure the yellow OFF light in the switch comes on. 2) Make sure these lights are off:
a) The OFF light, in the L (R) GEN CONT switches (P5).
b) The two BUS OFF lights (P5).
c) AIRPLANES WITH FIELD OFF SWITCHES INSTALLED ON

GENERATOR FIELD AND HYDRAULIC CONTROL PANEL; The left and the right FIELD OFF lights (P61).
(q) Push the APU GEN switch (P5), to the ON position. 1) Make sure the OFF light in the switch goes off. 2) Make sure these lights are off:
a) The OFF light, in the L (R) GEN CONT switches (P5).
b) The two BUS OFF Lights (P5).
c) AIRPLANES WITH FIELD OFF SWITCHES INSTALLED ON

GENERATOR FIELD AND HYDRAULIC CONTROL PANEL; The L (R) and APU FIELD OFF lights (P61).
N. Engine Shutdown with APU Generator
S 715-041
(1) Do the engine shutdown with the APU generator procedure:
(a)
Stop the left engine (Ref 71-00-00). 1) Make sure the yellow DRIVE light, in the L GEN DRIVE DISC switch (P5), is on. 2) Make sure the DRIVE light, in the R GEN DRIVE DISC switch (P5), is off. 3) Make sure the yellow OFF light, in the L GEN CONT switch (P5), is on.

4) Make sure these lights are off: a) The OFF light, in the APU and R GEN CONT switches (P5). b) The two BUS OFF lights (P5).

(b)
Stop the right engine (Ref 71-00-00). 1) Make sure the yellow DRIVE light, in the L (R) GEN DRIVE DISC switches (P5), are on. 2) Make sure the yellow OFF light, in the L (R) GEN CONT switches (P5), are on.

3) Make sure these lights are off: a) The OFF light, in the APU GEN switch (P5). b) The two BUS OFF lights (P5).
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757 MAINTENANCE MANUAL
c) AIRPLANES WITH FIELD OFF SWITCHES INSTALLED ON GENERATOR FIELD AND HYDRAULIC CONTROL PANEL; The white APU FIELD OFF light (P61).
4) Push the EXT PWR switch (P5). a) Make sure the ON light, in the switch, is on.
(c) Shutdown the APU (Ref 49-11-00).
1) Make sure these lights are off: a) The OFF light in the APU GEN switch (P5). b) The two BUS OFF lights (P5).
O. Restore Airplane to Normal
S 865-042
(1) Remove electrical power, if it is not necessary (Ref 24-22-00).
(a) Put the BAT switch (P5), to the OFF position.
TASK 24-22-00-735-057
3. System Test - AC Power System_____________________________
A. General
(1) The system test has an Air Mode Test, and an Autoland Mode Test.
B. References
(1)
24-22-00/201, Electrical Power - Control