54-51-02
ALL ú CONFIG 3 ú 10N Page 439 ú Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
10) Make sure the joint is not clamped. a) A minimum gap of 0.010 inch (0.255 mm) is required in the joint.
NOTE: The gap may be located between the washer (4)
____ and the bushing flange of the diagonal brace and/or the head of the fuse pin (12) and the bushing flange of the diagonal brace.
11) Inject grease into grease fitting, if installed, until grease appears around edge of the pin. a) Remove excess grease from around the pin.
(d) ON OUTBOARD STRUTS; Do these steps (Fig. 403): 1) Apply a thin layer of grease to the exterior of the fuse
pin (7).
2) Install the fuse pin (7).
a) If a slug is installed, push it out with the new greased fuse pin (7). Make sure the clevis and lug stay aligned.
CAUTION: DO NOT EXCEED AN UPLOAD OF 1500 POUNDS OR
_______ DOWNLOAD OF 500 POUNDS TO INSTALL THE DIAGONAL BRACE. EXCEEDING THESE LIMITS CAN CAUSE DAMAGE TO THE DIAGONAL BRACE WHEN INSTALLATION IS COMPLETED.
b) If necessary, change the load on the strut to align the clevis and lug or to make the brass slug free to move. 1 If you cannot install the diagonal brace in the
_ allowable load range, you must install a new diagonal brace.
3) Install the two end caps (4 and 11), two washers (5 and 10), and bolt (6).
4) Install the nut (9), and tighten to 125-500 pound-inches (14.3-57.0 N.m). a) Make sure the end caps (4 and 11) are correctly seated
against the fuse pin (7). b) Do a check to make sure that the torque value is correct. 5) Install the cotter pin (8).
a) You can install a maximum of three adjustment washers, between the nut (9) and the washer (10), to align the hole for the cotter pin (8).
b) Do a check to make sure that the bolt, end caps, washers, nut, and cotter pin are installed correctly.
c) Apply sealant, approximately 0.10 inch (2.54 mm) thick to both ends of cotter pin to prevent cotter pin movement.
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54-51-02
ALL ú CONFIG 3 ú 10N Page 440 ú Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
6) Make sure the joint is not clamped. a) A minimum gap of 0.010 inch (0.255 mm) is required in the joint.
NOTE: The gap may be located between either of the
____ end caps (4 and 11) and the applicable bushing flange on the diagonal brace.
7) Inject grease into grease fitting, if installed, until grease appears around edge of the pin. a) Remove excess grease from around the pin.
8) Install the retainer (7A) to the bracket with the nuts, washers, and bolts. a) Do a check to make sure that the clearance between the
side of the fuse pin and the retainer is as shown on the illustration. 9) Install each of the two access plate assemblies with the two screws.
S 424-016-003
(6) Install the diagonal brace forward fuse pin/bolt.
(a) ON INBOARD STRUTS;
Do these steps (Fig. 402):
1) Apply a thin coat of grease to the pin (16).
2) Install the fuse pin (16).
a) If a slug is installed, push it out with the greased pin (16). Make sure the clevis and lug stay aligned.
CAUTION: DO NOT EXCEED AN UPLOAD OF 1500 POUNDS OR
_______ DOWNLOAD OF 500 POUNDS TO INSTALL THE DIAGONAL BRACE. THE LOAD THAT RESULTS CAN CAUSE DAMAGE TO THE DIAGONAL BRACE WHEN INSTALLATION IS COMPLETED.
b) If necessary, change the load on the strut to align the clevis and lug or to make the brass slug free to move. 1 If you cannot install the diagonal brace in the
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