S 865-022
(12)
Make sure the BATTERY switch, on the P5 panel, is set to ON.
S 865-023
(13)
Make sure the STANDBY POWER switch, on the P5 panel, is set to AUTO.
S 865-024
(14)
Make sure the AC and DC buses have power.
(a)
Make sure all four AC buses have power.
(b)
Get access to the maintenance page for the electrical system (AMM 45-10-00/201).
(c)
Make sure that DC-VOLTS 1, 2, 3, and 4 show approximately 28 volts.
S 715-025
(15)
Do a test of the single-TRU operation relay and the main battery relay.
(a)
Open these circuit breakers:
1) P6, Main Power Distribution Panel
a) 6A5, TRU 1
b) 6A14, TRU 2
c) 6A32, TRU 4
(b)
Make sure the digital clock displays are on.
(c)
Make sure the dome lights in the flight compartment are on.
(d)
Open these circuit breakers:
1) P6, Main Power Distribution Panel
a) 6J7, MN BAT RELAY CONT
(e)
Make sure the digital clock displays are off.
(f)
Make sure the dome lights are off.
(g)
Close this circuit breaker:
1) P6, Main Power Distribution Panel
a) 6J7, MN BAT RELAY CONT
(h)
Make sure the digital clock displays are on.
(i)
Make sure the dome lights are on.
(j)
Close these circuit breakers:
1) P6, Main Power Distribution Panel
a) 6A5, TRU 1
b) 6A14, TRU 2
c) 6A32, TRU 4
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A
747-400 MAINTENANCE MANUAL
E. Put the Airplane to its Usual Condition
S 865-026
(1) Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a) P6, Main Power Distribution Panel
1) 6F24, FLT DK LIGHTS DOME
2) 6F1, IGN 1 ENG 1
3) 6K19, IGN 2 ENG 1
4) 6G19, STBY IGN ENG 1
5) 6F2, IGN 1 ENG 2
6) 6K20, IGN 2 ENG 2
7) 6G20, STBY IGN ENG 2
8) 6F3, IGN 1 ENG 3
9) 6K21, IGN 2 ENG 3
10) 6G21, STBY IGN ENG 3
11) 6F4, IGN 1 ENG 4
12) 6K22, IGN 2 ENG 4
13) 6G22, STBY IGN ENG 4
S 865-027
(2) Put the safety-sensitive systems back to the condition before air mode simulation (AMM 32-09-02/201, par. 5).
S 085-030
(3) Remove electrical power, if it is not necessary (AMM 24-22-00/201).
TASK 24-30-00-715-001
3. DC Generation Operational Test (Fig. 501)______________________________
A. References
(1) AMM 24-22-00/201, Manual Control
(2) WDM 24-31-11 thru WDM 24-31-21, WDM 24-32-11 thru WDM 24-32-21, WDM 24-33-11 thru WDM 24-33-21, WDM 24-34-11 thru WDM 24-34-22
(3) SSM 24-30-00 thru SSM 24-30-01
(4) SSM 24-31-01 thru SSM 24-31-02
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
(5)
SSM 24-32-01 thru SSM 24-32-02
(6)
SSM 24-33-01 thru SSM 24-33-03
(7)
SSM 24-34-01 thru SSM 24-34-03
B.
Access
(1)
Location Zone
118 Electrical and Electronics Compartment, RH
221 Control Cabin, LH
222 Control Cabin, RH
(2)
Access Panel
118A, Electrical Power Receptacle Door
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本文链接地址：747-400 AMM 飞机维护手册 ELECTRICAL POWER 电源 2(43)
