1) Remove the cotter pin (46), nut (45), four washers (41, 42, 43, and 44), and attach bolt (40).
(c)
Remove the side link lower fuse pin (35).
1) Remove the cotter pin (36), nut (37), two washers (38 and 39), and fuse pin (35).
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
S 024-006-003
CAUTION: REMOVE ONLY ONE MIDSPAR/SPRING BEAM FUSE PIN AT A TIME, UNLESS
_______ THE STRUT IS TO BE REMOVED. IF YOU REMOVE BOTH MIDSPAR/SPRING BEAM FUSE PINS AT THE SAME TIME, DAMAGE TO THE STRUT CAN OCCUR.
(6) Remove the midspar (inboard) or spring beam (outboard) fuse pin.
(a)
Remove the secondary retainer to allow pin removal. 1) Remove the bolts (57), washers (58) and nuts (59). 2) Remove the secondary retainer (56).
(b)
If the engine has been removed, do these steps:
1) Make sure that one end of the diagonal brace has been disconnected.
NOTE: This will remove the diagonal brace preload from the
____
strut.
2) Make sure that the strut overhead sling is installed.
(c)
Remove the cotter pin (50), nut (51), bolt (53), two washers (49 and 52), and end cap (54).
(d)
Remove the nut (48), retainer (47), and fuse pin (55).
1) If you will not remove the strut, push out the pin with a greased brass slug.
NOTE: Make sure the clevis and the lug stay aligned.
____
S 864-073-003
(7) Make sure the load on the strut is kept the same until you install the pin/bolt again, unless the strut is removed.
I. Remove the Overhead Crane with the Engine Installed (Optional)
NOTE: The overhead crane can be removed if the upper link OR diagonal
____
brace has a fuse pin removed.
S 944-089-003
WARNING: DO NOT MOVE THE AIRPLANE IF THE FUSE PIN IS REMOVED FROM THE
_______ UPPER LINK OR DIAGONAL BRACE FITTING. THE MOVEMENT OF THE AIRPLANE MAY CAUSE DAMAGE TO THE STRUCTURE OR SYSTEMS BETWEEN THE WING AND THE STRUT.
(1) Do the procedure to Jack the Airplane (AMM 07-11-01/201).
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 214-090-003
WARNING:_______REMOVE ONLY ONE STRUT-TO-WING FUSE PIN AT A TIME. THE STRUT CAN MOVE SUDDENLY AND INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
CAUTION: REMOVE ONLY ONE FUSE PIN/BOLT FROM THE UPPER LINK OR DIAGONAL
_______ BRACE. IF BOTH ATTACH FITTINGS ARE REMOVED, THE UPPER LINK OR DIAGONAL BRACE CAN HANG FROM ELECTRICAL BUNDLES OR HYDRAULIC LINES AND CAUSE DAMAGE TO THEM.
(2) Make sure the remaining strut to wing fittings are correctly installed.
S 024-091-003
WARNING: DO NOT USE YOUR HANDS TO REMOVE THE ALIGNMENT PIN FROM THE
_______ FITTING. THE FITTING CAN MOVE SUDDENLY AND CAUSE INJURIES TO PERSONS.
CAUTION: REMOVE THE BRASS ALIGNMENT PIN IF YOU REMOVE THE ENGINE MOUNTED
_______ STRUT HOISTING SLING. THE BRASS ALIGNMENT PIN COULD BE DAMAGED OR BE WEDGED IN PLACE IF THE ENGINE OR WING ARE ACCIDENTLY MOVED.
(3)
Remove the alignment pin from the fitting.
S 934-092-003
(4)
Put a strap through the lug and clevis and attach a red flag.
S 094-093-003
(5)
Remove the overhead crane and sling equipment:
