S 024-098
(3)
Remove the bolt (9)(2 locations) for the vertical fin segment.
(a)
Remove the cover (13) for the vertical fin segment.
S 024-099
(4)
Remove the bolts (10)(4 locations) that attach the rudder hinge segment (12) to the rudder.
(a)
Remove the rudder hinge segment (12).
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A
747-400
MAINTENANCE MANUAL
TASK 27-21-03-404-084
3. Rudder Hinge No. 1, 4, 5, 9, 10, or 11 Installation (Fig. 401)
___________________________________________________
A. Special Tools and Equipment
(1)
ST2580-267 Spanner Wrench Adapter Set
(2)
Milliohmmeter - 0 to 0.1 ohm range.
B.
Consumable Materials
(1)
D00633 Grease - BMS 3-33 (Preffered).
(2)
D00013 Grease - MIL-G-23827 (Optional).
C.
References
(1)
AMM 06-09-07/201, Fin and Rudder Access Doors and Panels
(2)
AMM 12-21-17/301, Rudder and Rudder Trim Control System
(3)
AMM 24-22-00/201, Manual Control
(4)
AMM 29-11-00/201, Main Hydraulic Sypply System
(5)
AMM 32-50-00/201, Steering
(6)
AIPC 27-21-01, Fig. 2
(7)
AIPC 55-40-52, Fig. 1
D.
Access
(1)
Location Zone 324 Vertical Fin, Rear Spar to Trailing Edge 325 Rudder, Lower 326 Rudder Upper
(2)
Access Panel
324BL Inspection Access Panel
324CL Inspection Access Panel
324EL Inspection Access Panel
324FL Inspection Access Panel
324GL Inspection Access Panel
324KL Inspection Access Panel
324LL Inspection Access Panel
324ML Inspection Access Panel
324UL Inspection Access Panel
E.
Install Hinge No. 1, 4, 5, 9, 10, or 11
S 224-100
(1) Make sure the rudder hinge segments and the bolt for the hinge are not worn too much.
S 424-083
WARNING: MAKE SURE PERSONS AND EQUIPMENT ARE CLEAR BELOW THE RUDDERS.
_______ OBJECTS CAN FALL AND CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(2) Put the rudder hinge segment (12) in its position on the rudder front spar.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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747-400 MAINTENANCE MANUAL
S 424-066
(3) Install the washer (11) and the bolt (10) (4 locations) to attach
the rudder hinge segment to the rudder. Do not tighten the bolts.
S 424-067
(4) Put the cover (13) in its position on the vertical fin segment.
S 424-068
(5) Install the bolt (9), the washer, and the nut for the vertical fin
segment (2 Locations).
S 644-069
(6) Apply grease to the bolt (1).
S 424-070
(7) Install the bushings (5), the bolt (1), the washers (2, 4), and the
nut (3).
NOTE:____ The bolts and the bushings are a larger size for hinges No. 1
and 4 than for hinges No. 5, 9, 10 and 11.
S 214-071
(8)
Make sure the lockwasher (7) is installed.
S 434-072
(9)
Tighten the nut (3) to 60-85 pound-inches.
(a)
Measure the clearance at each end of the bolt (1).
(b)
If it is necessary, change the number of washers (2) to get a clearance of 0.01-0.06 inches at each end of the bolt (1).
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