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SEE A
ELECTRICAL CONNECTOR, D4228P ELECTRICAL CONNECTOR, D4200P
FWD
A
Fire Detection System Electrical Connector Location
Figure 201
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
PANEL
STANDARD START VALVE (AIRSEARCH) START VALVE
A
A
Start Valve Manual Override Direction
Figure 202
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(b) Open these circuit breakers, for the applicable engine, and install the collars:
NOTE: With the circuit breakers closed, the airplane will
____ supply power for the EEC ground test to channel B continuously.
1) P6 Main Power Distribution Panel
a) 6G15 SCU ALT PWR ENG 1
b) 6G23 ENG SCU 1
c) 6G16 SCU ALT PWR 2
d) 6G24 ENG SCU 2
e) 6G17 SCU ALT PWR 3
f) 6G25 ENG SCU 3
g) 6G18 SCU ALT PWR ENG 4
h) 6G26 ENG SCU 4
(c)
Install the replacement plug on the receptacle for the connectors D8350P and D8360P (Fig. 203):
~.................................
| Engine 1 | D8352J and D8362J |
...................................
| Engine 2 | D8354J and D8364J |
...................................
| Engine 3 | D8356J and D8366J |
...................................
| Engine 4 | D8358J and D8368J |
2...........….....................1
(d)
Do the deactivation procedure so the EICAS message ENG-(1,2,3, or 4) SCU does not show. 1) Remove the electrical power (AMM 24-22-00/201). 2) Disconnect the connector from the EE rack E2-6.
~.....................
| Engine 1 | DQ2653 |
.......................
| Engine 2 | DQ2655 |
.......................
| Engine 3 | DQ2657 |
.......................
| Engine 4 | DQ2661 |
2..........…..........1
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
SEE A
D8360P ELECTRICAL CONNECTOR, ELECTRICAL CONNECTOR, D8350P
EEC (REF)
FWD
A
Supplemental Control Unit (SCU) Electrical Connector Location
Figure 203
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3) Remove the ground pin from the connector.
~............................... | Engine 1 | GDY5-2 | ................................. | Engine 2 | GDY5-4 | ................................. | Engine 3 | GDX5-1 | ................................. | Engine 4 | GDY6-20 | 2..........…....................1
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本文鏈接地址：747-400 AMM 飛機維護手冊 動力裝置 POWER PLANT 2(37)
