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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
(g) Install the cross tie fitting: 1) Install the four bolts.
(2) S 644-009Do this task to lubricate the forward bogie: System Lubrication" (Ref 12-21-20/301). "T rai ling Edge Flap
(3) S 094-010Remove the support equipment: (a) Remove the load positioner, spreader bar turnbuckles from the flap. (b) Install the screws in the midflap. (c) If you removed the foreflap, do this tas Installation" (Ref 27-51-02/401). k: , s tro "Inboard Foreflapngbacks and
(4) S 864-011Do this task to pressurize hydraulic system N System Pressurization" (Ref 29-11-00/201). o. 1: "Hydraulic
S 864-015
WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF THE LE AND TE
_______ FLAPS AND FLAP DRIVE MECHANISMS BEFORE YOU MOVE THE FLAP CONTROL LEVER. WITH HYDRAULIC POWER REMOVED, THE FLAPS WILL MOVE AUTOMATICALLY BY ELECTRICAL POWER WHEN YOU MOVE THE FLAP CONTROL LEVER.
(5)
Remove the DO-NOT-MOVE tag and retract and extend the inboard flaps.
(a)
Make sure the flaps move freely.
S 864-016
(6)
Put the flap control lever in the UP detent to retract the inboard flaps.
S 864-013
(7)
Do this task to depressurize hydraulic system No. 1: "Depressurize Hydraulic Systems" (Ref 29-11-00/201).
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27-51-43
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
INBOARD FLAP TRACK FAIRING SUPPORT - REMOVAL/INSTALLATION
_________________________________________________________
1. General_______
A. There are 13 tasks in this procedure. There are tasks for the removal and tasks for the installation of six parts of the fairing support system.
B. There are removal and installation procedures for these parts on the inboard flap track fairing:
-Support Fitting
-Adjustable Rod
-Fixed Drive Link
-Drive Rod
-Midflap Fitting
-Attachment Fitting
TASK 27-51-44-004-001
2. Inboard Flap Track Fairing Support Fitting Removal__________________________________________________
A. References
(1)
AMM 29-11-00/201, Main Hydraulic Supply System
B.
Access
(1)
Location Zones 563 Outboard Flap Track Fairing, Inboard Flap, LH, (Track No. 3) 561 Inboard Flap Track Fairing, Inboard Flap, LH, (Track No. 4) 661 Inboard Flap Track Fairing, Inboard Flap, RH, (Track No. 5)
663 Outboard Flap Track Fairing, Inboard Flap, RH, (Track No. 6)
C. Procedure
S 864-002
(1) Do this task to pressurize hydraulic system No. 1: "Pressurize Hydraulic Systems" (AMM 29-11-00/201).
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 864-068
WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF THE LE AND TE
_______ FLAPS AND FLAP DRIVE MECHANISMS BEFORE YOU MOVE THE FLAP CONTROL LEVER. WITH HYDRAULIC POWER REMOVED, THE FLAPS WILL MOVE AUTOMATICALLY BY ELECTRICAL POWER WHEN YOU MOVE THE FLAP CONTROL LEVER.
(2)
Put the flap control lever in the 30-unit detent to extend the inboard flaps and attach a DO-NOT-MOVE tag.
S 864-004
(3)
Do this task to depressurize hydraulic system No./1: "Depressurize Hydraulic Systems" (AMM 29-11-00/201).
S 494-005
(4)
Hold the inboard flap track fairing in the extended position.
S 024-006
(5)
Remove the fairing support fitting (Fig. 401):
(a)
Disconnect the support fitting from the adjustable rod (Section G-G): 1) Remove the bolt, washers and nut that connect the support
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