S 864-062
(10)
Pressurize the reservoir fill filter with the hand pump (AMM 12-12-01/301).
S 214-063
(11)
Examine the reservoir fill filter for leakage.
S 864-039
(12)
Release the pressure in the pneumatic system (AMM 36-00-00/201).
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A
747-400 MAINTENANCE MANUAL
S 094-064
WARNING:_______ YOU MUST CAREFULLY DO THE STEPS IN THE TASK BELOW TO REMOVE THE
DOOR LOCKS ON THE LANDING GEAR DOORS. THE DOORS CAN CLOSE
QUICKLY IF YOU DO NOT REMOVE THE DOOR LOCKS CORRECTLY. THIS
CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(13)
Do this task: Body Landing Gear Door Lock Removal (AMM 32-00-30/201).
S 864-041
(14)
Remove electrical power if it is not necessary (AMM 24-22-00/201).
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A
747-400 FAULT ISOLATION/MAINT MANUAL
P5 P7 PANEL PANEL
HYD PUMPS DEMAND PRESS LIGHT, L4
AUXILIARY PUMP CONTROL SWITCH, S8
HYDRAULIC CONTROL MODULE, M7316 (REF)
Auxiliary AC Hydraulic System - Component Location
Figure 101 (Sheet 1)
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A
747-400
FAULT ISOLATION/MAINT MANUAL
MAIN EQUIPMENT CENTER
SEE B
E2 RACK (REF)
P714 PANEL
E1 RACK (REF)
P414 PANEL
ACCESS
HATCH,
117AL
NOSE GEAR
WHEEL WELL
FWD (REF)
MAIN E/E EQUIPMENT CENTER
B
Auxiliary AC Hydraulic Systems - Component Location Figure 101 (Sheet 2)
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A
747-400
FAULT ISOLATION/MAINT MANUAL
ENGINE
NACELLE
STRUT
FWD
FILTERS
SEE C
PUMPS
CASE DRAIN SEE D
MODULE
AIR-DRIVEN
PUMP (REF)
AUXILIARY PUMP
CASE DRAIN FWD
FILTER
FILTERS
AUXILIARY
C HYDRAULIC PUMP
FWD
PUMPS (RIGHT SIDE SHOWN)
D
Auxiliary AC Hydraulic System - Component Location Figure 101 (Sheet 3)
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1.
2.
3.
4.
A
747-400 MAINTENANCE MANUAL
AUXILIARY AC HYDRAULIC SYSTEM - DESCRIPTION AND OPERATION
_________________________________________________________
General
_______
A. The auxiliary hydraulic system supplies hydraulic power for the brakes on the airplane while it is towed. The system has an auxiliary hydraulic pump, auxiliary pump case drain filter, and a demand pump switch in the flight compartment.
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本文鏈接地址：747-400 AMM 飛機(jī)維護(hù)手冊(cè) 液壓 HYDRAULIC 2(94)
