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A
747-400 MAINTENANCE MANUAL
2) 7E20, R STAB TRIM S/O VLV
S 712-020
(9) Do this task: "Operational Test - Stabilizer Hinge" (Ref paragraph 7).
TASK 27-41-02-002-021
4. Stabilizer Hinge Removal (Fig. 201)________________________
A. Special Tools and Equipment
(1)
2MIT65B03670 - Horizontal Stabilizer Hinge Bolt and Bearing Replacement Tool (which is referred to as the "replacement tool")
(2)
G27036-46 - Horizontal Stabilizer Hinge Bearing Free Play Check Tool (which is referred to as the "check tool")
NOTE:____Use this tool with shear deck fittings (Fig. 201). Use the tool only in an area that has no high winds.
B. References
(1)
AIPC 55-10-50-01
C.
Access
(1)
Location Zone 311 Area Aft of Pressure Bulkhead, LH 312 Area Aft of Pressure Bulkhead, RH 315 Area Aft of Stabilizer Box Compartment, LH 316 Area Aft of Stabilizer Box Compartment, RH
(2)
Access Panel
315A Access Door
D.
Procedure
S 032-022
(1) Do this task: "Stabilizer Hinge Pivot Pins Removal" (Ref paragraph 2).
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747-400 MAINTENANCE MANUAL
S 032-084
CAUTION:_______ DO NOT REMOVE THE STABILIZER HINGE SUPPORT FITTING OR SECONDARY
SUPPORTS WHILE THE AIRPLANE IS SUPPORTED AT THE REAR JACKING
POINT. DAMAGE TO THE AIRPLANE MAY RESULT.
(2)
Loosen the adjustment screws (6) to move the stabilizer laterally.
S 432-024
(3)
Remove the support fitting of the stabilizer hinge (Fig. 203):
(a)
Remove the eight lateral bolts through the secondary supports.
(b)
Remove the support fitting (14) of the inboard hinge (Fig. 201):
NOTE: The support fitting (14) has the adjustment screw (6),
____ the bushing (4), and the nut (5).
1) Remove the 12 bolts that attach the support fitting (14) to the support frame.
2) Remove the support fitting (14).
3) If it is installed, keep the lockclip (13) attached by the middle two bolts.
(c) Remove the support fitting (17) of the outboard hinge: (Fig. 201):
NOTE: The support fitting (17) has the spacer (19), the
____ bushing (18), the nut (24), and the washer (25).
1) Remove the 12 bolts that attach the support fitting (17) to the support frame. 2) Remove the support fitting (17).
S 022-025
(4)
Remove the stabilizer hinge bearing (15) (Fig. 201):
(a)
Remove the adjustment screw (6).
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747-400
MAINTENANCE MANUAL
TIGHTENING TORQUE VALUES
NOTE:THE VALUES SHOWN ARE FOR TORQUE APPLIED TO THE NUT. WHEN YOU APPLY TORQUE ON THE BOLT, ADD 10 PERCENT.
EXAMPLE FOR THE ATTACHMENT TO THE AIRPLANE STRUCTURE
OUTBD
LOCA-TION
A B C D E F G H I J
250-350 (28.3-39.6)
100-150 (11.3-17.0)
100-150 (11.3-17.0)
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