27-21-05
ALL ú ú 01 Page 405 ú Jun 10/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 424-035
(9)
Put the end of the flexshaft in the jackshaft (21). Turn the end of the flexshaft until it engages the pin in the jackshaft.
S 434-036
(10)
Tighten the shaft retaining nut (19).
S 424-037
(11)
Install the clamps (13) and the grommet (17).
NOTE: Install the flexshaft without tight bends.
____
S 394-038
(12)
Seal all holes around the grommet.
S 714-013
(13)
Turn the handle (5) through its full travel and make sure it moves freely.
S 414-014
(14)
Install the access panel that you removed.
S 864-015
(15)
Supply electrical power (Ref 24-22-00/201).
S 864-016
(16)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a)
P180, DC Power Distribution Panel,
1) 180H8 ELEV/RUD VLV SYS 1
2) 180E7 ELEV/RUD VLV SYS 2
3) 180H23 ELEV/RUD VLV SYS 3
4) 180E22 ELEV/RUD VLV SYS 4
S 864-017
(17)
Find the switches for the FLT CONTROL HYD POWER on the Pilot's Overhead Maintenance Panel, P461.
(a)
Put the TAIL switches in the NORM position.
(18)
Remove electrical power if it is not necessary (Ref 24-22-00/201).
S 864-019
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
27-21-05
ALL ú ú 01 Page 406 ú Jun 10/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
RUDDER FORWARD QUADRANT - REMOVAL/INSTALLATION
______________________________________________
1. General_______
A. This procedure has two tasks. The first task gives you the instructions to remove the rudder forward quadrant. The second task gives you the instructions to install the rudder forward quadrant.
B. The procedure to remove the rudder forward quadrant has these basic steps:
(1)
Remove hydraulic power from the rudder.
(2)
Open the access panels.
(3)
Put a clamp on the control cables.
(4)
Remove the rudder forward quadrant.
C.
The procedure to install the rudder forward quadrant has these basic steps:
(1)
Install the rudder forward quadrant.
(2)
Adjust the tension in the control cables.
(3)
Do a test of the rudder forward quadrants.
(4)
Put the airplane back to its usual condition.
TASK 27-21-06-004-001
2. Rudder Forward Quadrant Removal (Fig. 401)_______________________________
A. References
(1)
24-22-00/201, Manual Control
(2)
IPC 27-21-06 Fig. 5
B.
Access
(1)
Location Zone 211 Passenger Cabin-Nose to First Door, LH 212 Passenger Cabin-Nose to First Door, RH 324 Vertical Stabilizer, Rear Spar to Trailing Edge
C.
Prepare for the Removal
(1)
Supply electrical power (Ref 24-22-00/201).
S 864-003
(2)
Find the switches for the FLT COLTROL HYD POWER on the Pilot's Overhead Maintenance Panel, P461.
(a)
Put the TAIL switches in the SHUT OFF position.
S 864-002
S 864-005
(3)
Open these circuit breakers and attach DO-NOT-CLOSE tags:
(a)
P180, DC Power Distribution Panel,
1) 180H8 ELEV/RUD VLV SYS 1
2) 180E7 ELEV/RUD VLV SYS 2
3) 180H23 ELEV/RUD VLV SYS 3
4) 180E22 ELEV/RUD VLV SYS 4
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
27-21-06
ALL ú ú 01 Page 401 ú Jun 10/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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