(b)
Install the ADP muffler on the turbine exhaust.
(c)
Apply the leak detector to the governor unit fittings.
(d)
Supply pressure to the pneumatic system (AMM 36-00-00/201).
(e)
Put the applicable HYD DEMAND switch on the P5 panel in the ON position.
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747-400 MAINTENANCE MANUAL
(f)
Examine the fittings and the gearbox for leakage.
1) If you find leakage, repair the cause of it.
(g)
Put the HYD DEMAND switch in the OFF position.
(h)
Release the pressure in the pneumatic system
(AMM 36-00-00/201).
(i)
Remove the ADP muffler.
S 414-032
CAUTION: MAKE SURE YOU LATCH THE FAIRING DOORS ON THE TRAILING EDGE
_______ CORRECTLY. DAMAGE CAN OCCUR IF THE DOORS OPEN DURING A FLIGHT.
(6)
Close the fairing doors on the trailing edge of the strut (AMM 54-62-00/201).
S 864-033
(7)
Remove electrical power if it is not necessary for other operations (AMM 24-22-00/201).
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747-400 MAINTENANCE MANUAL
TURBINE DRIVE OIL FILTER - REMOVAL/INSTALLATION
_______________________________________________
1. General
_______
A. This procedure contains the tasks to remove and install the oil filter for the turbine drive.
B. It is necessary to fill the oil system for the turbine drive unit after you install the oil filter.
C. The oil filter is in the turbine drive unit in the aft nacelle strut. You can get access to the oil filter through the right fairing door on the trailing edge of the strut.
TASK 29-11-14-004-001
2. Turbine Drive Oil Filter Removal (Fig. 401)
________________________________
A. References
(1)
AMM 36-00-00/201, Pneumatic System
(2)
AMM 54-62-00/201, Nacelle Strut Access Panels
(3)
IPC 29-11-41 Fig. 1
B.
Access
(1)
Location Zone
454 System 1 - Strut Aft Fairing
484 System 4 - Strut Aft Fairing
(2)
Access Panel 454AR Trailing Edge Fairing Door, RH - System 1 484AR Trailing Edge Fairing Door, RH - System 4
C.
Procedure
S 014-002
(1) Open the right fairing door on the trailing edge of the strut (AMM 54-62-00/201).
S 864-003
WARNING: MAKE SURE YOU RELEASE THE PNEUMATIC DUCT PRESSURE BEFORE YOU
_______ REMOVE A PNEUMATIC SYSTEM COMPONENT. THE HOT, HIGH PRESSURE AIR CAN CAUSE INJURY TO PERSONS.
(2) Release the pressure in the pneumatic system (AMM 36-00-00/201).
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SEE A 747-400 MAINTENANCE MANUAL 1. FILTER CAP 2. PACKING 3. SPRING
4. OIL FILTER
A-A TO RELIEF VALVE
A
A
RELIEF VALVE TURBINE DRIVE GEARBOX MAGNETIC OIL DRAIN PLUG
AFT LOOKING FORWARD
A
Turbine Drive Oil Filter Installation Figure 401
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29-11-14 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：747-400 AMM 飞机维护手册 液压 HYDRAULIC 2(2)
