(a)
Adjust the radius rods (Fig. 502), if it is necessary, to align the door at the forward and aft ends (Views A-A, B-B, C-C, and D-D, Fig. 504).
(b)
Tighten the nut (View C, Fig. 502) on the radius rod to 135 - 300 pound-inches.
S 865-032
(8) Pressurize the hydraulic systems No. 1 and 4 systems (AMM 29-11-00/201).
S 865-033
WARNING: MAKE SURE THAT ALL PERSONS AND EQUIPMENT ARE CLEAR OF THE DOOR
_______ OPERATION PATHS. DO NOT MOVE THE DOORS TOO QUICKLY. IT CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(9)
Operate the release handle to close the wheel well doors for the wing and body landing gears.
S 865-034
(10)
Remove the pressure from hydraulic systems No. 1 and 4 (AMM 29-11-00/201).
S 835-035
(11)
Make sure that you align the outboard door at the forward and aft ends (Views A-A, B-B, C-C and D-D, Fig. 504).
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A
747-400 MAINTENANCE MANUAL
I. Adjust The Door System Preload (Fig. 502 and 503.)
S 835-036
(1) Adjust the door system preload:
CAUTION: DO NOT STAND ON THE DOOR OR APPLY THE FORCE TO THE DOOR
_______
WHEN YOU MAKE THIS ADJUSTMENT.
(a) Find the necessary shim thickness at the forward door stop to set the stop plate to touch the stop on the door (View E-E, Fig. 503).
WARNING: MAKE SURE THAT ALL PERSONS AND EQUIPMENT ARE CLEAR OF THE
_______ DOOR OPERATION PATHS. DO NOT MOVE THE DOORS TOO QUICKLY. IT CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(b) Operate the release handle to open the wheel well doors for the wing and body landing gears.
S 835-038
(2)
Continue to adjust the door system preload:
(a)
Complete the installation of the forward door stop with the necessary shim.
S 865-040
(3) Pressurize the hydraulic systems No. 1 and 4
(AMM 29-11-00/201).
S 865-041
WARNING: MAKE SURE THAT ALL PERSONS AND EQUIPMENT ARE CLEAR OF THE DOOR
_______ OPERATION PATHS. DO NOT MOVE THE DOORS TOO QUICKLY. IT CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(4) Operate the release handle to close the wheel well doors for the wing and body landing gears.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
WING GEAR WHEEL WELL INBOARD DOOR
(POINT E LIES ON THE BASIC STRUCTURE AND TWO FAIRING PANELS MUST BE OPENED TO GAIN ACCESS)
BODY STATION
1486.50
(REF)
BODY STATION
981.60 (REF)
ALIGNMENT POINT E
BUTTOCK PLANE ZERO
Wing Gear Wheel Well Door Open Adjustment
Figure 505
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 865-042
(5)
Remove the pressure from hydraulic systems No. 1 and 4
(AMM 29-11-00/201).
S 835-043
(6)
Continue to adjust the door system preload:
CAUTION: DO NOT STAND ON THE DOOR OR APPLY THE FORCE TO THE DOOR
_______
WHEN YOU MAKE THIS ADJUSTMENT.
(a) Make sure the stop on the door touches the stop plate of the door (View E-E, Fig. 503). 中國航空網 www.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：747-400 AMM 飛機維護手冊 起落架 LANDING GEAR 2(80)
