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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
SEE A
FILL FITTING
FILL FITTING OVERFLOW PORT
CAP HANDLE
FILL VALVE
SWITCH
QUANTITY
INDICATOR
SEE B
COMPRESSOR CONTROL
AND BLEED AIR VALVE
SWITCH
LATCH
(6 LOCATIONS)
POTABLE WATER SYSTEM
FILL VALVE
CLOSED OPEN
H20 QTY
DOOR % FULL
CAPACITY
FWD 20 GALLONS
A B
Water Servicing
Figure 301
C24301
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 863-008
(8)
Disconnect the pressurized supply hose.
S 863-009
(9)
Close the cap for the fill fitting.
S 413-021
(10)
Close the door for the water service panel.
S 863-010
(11)
Remove electrical power if it is not necessary (AMM 24-22-00/201).
TASK 12-14-61-603-011
3. Drain Water System__________________
A. References
(1) AMM 24-22-00/201, Manual Control
B. Access
(1) Access Panel
191 FF Access Door, Water Service
C. Procedure
S 863-012
(1)
Supply electrical power (AMM 24-22-00/201).
S 863-013
(2)
Open these circuit breakers and attach DO-NOT-CLOSE tags.
(a)
P414 Main Power Distribution Panel 1) 414A24 WASTE & WATER LINE HTR MN PWR 2) 414D5 WASTE & WATER LINE HTR MN PWR
(b)
P415 Power Distribution Center-Right Panel 1) 415H27 LAV WTR HTR UPPER DECK U21
(3)
Open the door for the water service panel.
(4)
Move the FILL VALVE switch to OPEN.
(5)
Make sure the lavatory and galley water shutoff valves are open.
S 013-014
S 613-015
S 863-016
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747-400 MAINTENANCE MANUAL
(6) S 863-017Open all galley water outlets as applicable and, if necessary, collect water in suitable containers.
(7) S 863-018Where applicable, disconnect the coffeemaker supply line and the drain line.
(8) S 863-022When the flow of water stops at the fill fitting, move the FILL VALVE switch to CLOSED.
(9) S 863-019Close the cap on the fill fitting.
S 413-020
(10)
Close the door for the water service panel. S 863-024
(11)
Remove electrical power if it is not necessary (AMM 24-22-00/201).
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747-400 MAINTENANCE MANUAL
WING LANDING GEAR SHOCK STRUT - SERVICING
_________________________________________
1. General_______
A. This procedure contains 3 tasks:
(1)
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本文链接地址：747-400 AMM 飞机维护手册 SERVICING 1(60)
