(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
454A Trailing Edge Fairing Doors - System 1
484A Trailing Edge Fairing Doors - System 4
C.
Procedure
S 014-002
(1) Open the fairing doors on the trailing edge of the strut (AMM 54-62-00/201).
S 034-003
CAUTION: MAKE SURE YOU HAVE SUFFICIENT SUPPORT EQUIPMENT AND A CLEAN
_______ AREA TO DO THE WORK. DAMAGE TO THE TURBINE DRIVE UNIT CAN OCCUR.
(2) Remove the ADP turbine drive (25) (AMM 29-11-08/401).
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A
747-400 MAINTENANCE MANUAL
MOUNTING FLANGEENGINE FOR THE TURBINENACELLE
10. NUT STRUT
B
DRIVE11. WASHER
12. WASHER
13. SHIM
B
0.002 INCH MAX GAP
SHUTOFF/SPEED
CONTROL MOUNTING
FLANGE
14. WASHER
9. SPRING (QTY 4) 0.135-0.145 INCH
15. SPACER
17. BOLT
SEE A 16. NUT
(2 LOCATIONS) A-A
SHUTOFF/SPEED
7.
CLAMP CONTROL MOUNTING
8.
GASKET
FLANGE
6. CLAMP MOUNTING FLANGE (2 LOCATIONS) FOR THE TURBINE
2.
NUT
DRIVE
3.
WASHER
(2 LOCATIONS)
B-B
SEE B
4.
SPACER
5.
BOLT
1. SHUTOFF/SPEED
A
CONTROL VALVE
A
TURBINE DRIVE INSTALLED
A
Shutoff and Speed Control Valve Unit Installation
Figure 401 (Sheet 1)
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
19. PRESSURE TUBE FOR
THE CONTROL AIR
18. FILTER ELECTRICAL COMPONENT
C
ASSEMBLY
20. CYLINDER
C
PORT TUBE
WATER SEPARATOR FOR THE SPEED CONTROL VALVE
21. SUPPLY PORT TUBE
22. FILTER
FWD
B
23. UNION
24. PACKING
WATER
SEPARATOR
REDUCER
C-C
Shutoff and Speed Control Valve Unit Installation Figure 401 (Sheet 2)
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
25. AIR-DRIVEN PUMP 26. GOVERNER
TURBINE DRIVE UNIT TUBE
27. BOLT
28. WASHER
(2 LOCATIONS)
29. NUT
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