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29-11-17
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A
747-400 MAINTENANCE MANUAL
CASE DRAIN MODULE - MAINTENANCE PRACTICES
_________________________________________
1. General_______
A. This procedure contains these eight tasks:
(1)
Case Drain Module Removal
(2)
Case Drain Module Installation
(3)
Case Drain Filter Element Removal
(4)
Case Drain Filter Element Installation
(5)
Case Drain Module Check Valve Removal
(6)
Case Drain Module Check Valve Installation
(7)
Differential Pressure Indicator Removal
(8)
Differential Pressure Indicator Installation.
B.
It is necessary to open the fairing doors on the trailing edge of the strut to do these tasks.
C.
The installation of the case drain module is the same for each system.
TASK 29-11-18-002-001
2. Case Drain Module Removal (Fig. 201)_________________________
A. References
(1)
AMM 29-11-00/201, Main Hydraulic Supply System
(2)
AMM 36-00-00/201, Pneumatic System
(3)
AMM 54-62-00/201, Nacelle Strut Access Panels
(4)
IPC 29-11-18 Fig. 5 (Outboard), IPC 29-11-18 Fig. 6 (Inboard)
B.
Access
(1)
Location Zone
454 System 1 - Strut Aft Fairing
464 System 2 - Strut Aft Fairing
474 System 3 - Strut Aft Fairing
484 System 4 - Strut Aft Fairing
(2)
Access Panel 454AL Trailing Edge Fairing Doors - System 1 464AL Trailing Edge Fairing Doors - System 2 474AL Trailing Edge Fairing Doors - System 3 484AL Trailing Edge Fairing Doors - System 4
C.
Procedure
S 012-002
(1) Open the fairing doors on the trailing edge of the applicable strut (AMM 54-62-00/201).
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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747-400
MAINTENANCE MANUAL
6. SCREW 7. DIFFERENTIAL PRESSURE (4 LOCATIONS) INDICATOR
8. PACKING
SEE A
9. BACKUP RING
AUXILIARY CHECK VALVE
10. CHECK VALVE PORT A
12. PACKINGPORT A
CHECK
1.
ADAPTER
VALVE
2.
JAMNUT
3.
PACKING
4.
BACKUP RING
14. PACKING
5.
PACKING
11. BACKUP33. ADAPTER
2.
JAMNUT RING
3.
PACKING
13. BACKUP RING
4.
BACKUP RING
5.
PACKING
PORT B CHECK VALVE
PORT B
1. ADAPTER
2. JAMNUT
3. PACKING
4. BACKUP RING
5. PACKING
PORT OUT
SEE B C 15. 16. PLUG PACKING 1
17. ADAPTER
30. BOLT 18. JAMNUT
31. WASHERS (QTY 2) 19. PACKING
32. NUT PORT 20. BACKUP 2
(3 LOCATIONS) AUX RING
21. PACKING
29. PACKING
ENGINE-DRIVEN
DRAIN FILTER PUMP CASE 28. PACKING FWD
22. CASE27. FILTER ELEMENT
DEMAND PUMP CASE DRAIN FILTER
23.
PACKING
24.
VALVE
25.
PACKING
1 HYDRAULIC SYSTEMS 1,2, AND 3 A
26. MAGNETIC
2
HYDRAULIC SYSTEM 4 PLUG
Case Drain Module Filter Element, Check Valve, and
Differential Pressure Indicator Installation
Figure 201 (Sheet 1)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú 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(22)
