24-30-00
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 FAULT ISOLATION/MAINT MANUAL
MAIN BATTERY RACK
SEE E
MAIN BATTERY, M7432
MAIN DECK
CARGO TRU
SEE F
MAIN BATTERY RACK E
EQUIPMENT APU TRANSFORMER RACK, E33 RECTIFIER UNIT, H123 SEE G
APU BATTERY CHARGER, M7431
MAIN DECK CARGO
HANDLING TRANSFORMER
RECTIFIER UNIT, T177
APU
BATTERY, M7432
APU BATTERY CHARGER DISABLE RELAY, R7218 (LOCATED BEHIND P183 PANEL)
P183 PANEL
MAIN DECK CARGO TRU EQUIPMENT RACK, E33
FWD
F G
DC Generation - Component Location
Figure 102 (Sheet 3)
M49886
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A
747-400 MAINTENANCE MANUAL
DC GENERATION - ADJUSTMENT/TEST
_______________________________
1. General_______
A. This procedure has two tasks.
(1)
The first task is an operational test of the single TRU operation relay.
(2)
The second task is a complete operational test of the DC generation system.
(a)
This task includes tests of these generation components:
(b)
DC Isolation Relays (DCIRs)
(c)
Battery Transfer Relay
(d)
Single TRU Operation Relay
(e)
Main Battery Relay
(f)
DC Voltage Sense Relay
(g)
Main Battery Charger Disable Relay
(h)
APU Battery Charger Disable Relay
B.
H4 If the DC generation system does not operate correctly, refer to FIM 24-30-00/101.
TASK 24-30-00-715-011
2. Single TRU Operation Relay Test (Fig. 501)_______________________________
A. General
_______
(1)
This task does not do a complete test of the DC generation system. For a complete test of the DC generation system, go to the next task in this procedure.
B.
References
(1)
AMM 24-22-00/201, Manual Control
(2)
WDM 24-31-11 thru WDM 24-31-21
(3)
WDM 24-32-11 thru WDM 24-32-21
(4)
WDM 24-33-11 thru WDM 24-33-21
(5)
WDM 24-34-11 thru WDM 24-34-22
(6)
SSM 24-30-00 thru SSM 24-30-01
(7)
SSM 24-31-01 thru SSM 24-31-02
(8)
SSM 24-32-01 thru SSM 24-32-02
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A
747-400 MAINTENANCE MANUAL
SEE A
SEE B
ELECTRICAL
1 2 3 4
EXT 1 APU 1 APU 2 EXT 2
AC-V 0 115 115 115 115 115 0 115
FREQ 0 400 400 400 400 400 0 400
LOAD 0.00 0.73 0.75 0.75 0.75 0.75 0.00 0.65
MAIN BAT APU BAT
DC-V 28 28 28 28 28 28
DC-A CHG10 35 35 35 35 10DIS
IDG OUT.TEMP 145 175 145 145
IDG RISE TEMP 35 35 35 35
GEN 2 DRIVE DATE02SEP90 GMT18:54:04
ELECTRICAL SYSTEM CONTROL MODULE ELECTRICAL SYSTEM MAINTENANCE DISPLAY AB
Electrical System Control/Maintenance Display Location
Figure 501
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