1
INSTALL AS MANY LARGE WASHERS (2) AS NECESSARY (INSTALL IF TO GET A CLEARANCE OF .01-.06 INCH. NECESSARY)
A-A
Upper Rudder Power Control Package
Figure 404 (Sheet 1)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
27-21-01
ALL ú ú 01 Page 421 ú Jun 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
LOWER ACTUATOR
14. REACTION LINK
REACTION LINK
Upper Rudder Power Control Package
Figure 404 (Sheet 2)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
27-21-01
ALL ú ú 01 Page 422 ú Jun 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 747-400 MAINTENANCE MANUAL
9. BOLT
UPPER ACTUATOR
HOUSING ASSEMBLY
ANTIROTATION STOP
11. UPPER CENTER
RUDDER ACTUATOR FOR THE UPPER RUDDER
22. BUSHING
WASHER
CENTER ACTUATOR
Upper Rudder Power Control Package
Figure 404 (Sheet 3)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
27-21-01
ALL ú ú 01 Page 423 ú Jun 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 747-400 MAINTENANCE MANUAL
30. BOLT
28.
27. SUMMING LEVER SUPPORT
SUMMING LEVER
Upper Rudder Power Control Package
Figure 404 (Sheet 4)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
27-21-01
ALL ú ú 01 Page 424 ú Jun 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
UPPER RUDDER
FIN
THREADED BUSHING
43.
1 INSTALL AS MANY WASHERS 56. COTTER PIN AS NECESSARY TO GET A
I
CLEARANCE OF 0.02-0.05 INCH.
Upper Rudder Power Control Package
Figure 404 (Sheet 5)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
27-21-01
ALL ú ú 01 Page 425 ú Jun 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
ANTIROTATION LUG
STUD
47. BEARING ASSEMBLY
11. UPPER RUDDER
43. BONDING JUMPER
THREADED BUSHING
WASHER
HINGE NO. 8
Upper Rudder Power Control Package
Figure 404 (Sheet 6)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
27-21-01
ALL ú ú 01 Page 426 ú Jun 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 747-400 MAINTENANCE MANUAL
(3) S 034-052Disconnect all of the bonding jumpers (43), at the rudder hinges, from the rudder front spar (Fig. 404).
(4) S 864-053Put the upper rudder in its center position.
(5) S 494-054Attach the upper rudder sling to the crane, then set the sling to hold the rudder in the vertical position.
NOTE:____ We recommend that you use a load positioner (also called a Zero G device) to let you manually move the upper rudder.
(6) S 284-055Make sure the sling is locked in this position.
(7) S 034-056Pull the sling up (with the crane) to hold the weight of the upper rudder.
NOTE:____ The upper rudder weighs approximately 388 pounds.
中國航空網(wǎng) www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：747-400 AMM 飛機維護手冊 飛行操縱 FLIGHT CONTROLS 2(72)
