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E. Prepare to Disconnect
S 492-002 (1) Make sure the ground locks are installed in the landing gear (AMM 09-11-00/201). S 492-013 WARNING: YOU MUST CAREFULLY DO THE STEPS IN THE TASK BELOW TO INSTALL _______ THE DOOR LOCKS ON THE LANDING GEAR DOORS. THE DOORS CAN CLOSE QUICKLY IF YOU DO NOT INSTALL THE DOOR LOCKS CORRECTLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT. (2) Do this task: "Installation of the Door Locks on the Body Landing Gear" (AMM 32-00-30/201).
(3) Make sure there is no pressure in hydraulic system No. 1 (AMM 29-11-00/201).
(4) Remove the bolt (2), washers (1, 3, 5, and 6), and nut (7).
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SEE B FWD BRACKET CONDUIT ELECTRICAL HYDRAULIC LINES TO STEERING ACTUATOR SEE A INBD LINE BRACKET HYDRAULIC CONDUIT ELECTRICAL TO TILT ACTUATOR HYDRAULIC LINES
CONNECTOR ELECTRICAL A CLAMPS A TRAPEZE BRACKET CONDUIT ELECTRICAL FWD
HYDRAULIC A HOSES TO BRAKES Steering Actuator-to-Torsion Link Connection Figure 201 (Sheet 1) EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
32-53-11 ALL ú ú 01 Page 202 ú Oct 10/91 BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. A 747-400 MAINTENANCE MANUAL
Steering Actuator-to-Torsion Link Connection Figure 201 (Sheet 2)
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32-53-11 ALL ú ú 01 Page 203 ú Oct 10/91 BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. A 747-400 MAINTENANCE MANUAL
12. O-RINGS (5 LOCATIONS)
15. APEX PIN 18. LOCKBOLT 17. SPINDLE NUT 16. ALIGNMENT WASHER 4. SPINDLE 19. WASHER 20. NUT 21. SPLINED COLLAR 16. ALIGNMENT WASHER TORSION 22. SPLINED LINK WASHER 24. NUT
23. LOCKBOLT 26. NUT 25. WASHER FWD B
Steering Actuator-to-Torsion Link Connection Figure 201 (Sheet 3)
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32-53-11 ALL ú ú 01 Page 204 ú Oct 10/91 BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. A 747-400 MAINTENANCE MANUAL S 032-010 (5) Pull the hydraulic clamp (11) and the trapeze (9),which contain the hydraulic hoses, to one side.
F. Steering Actuators Disconnection
S 492-006 CAUTION: USE A HOLDING TOOL TO HOLD THE TORSION LINK UP AND A SUPPORT _______ STAND TO HOLD THE ACTUATORS IN A HORIZONTAL POSITION. DO NOT PERMIT THE LINK AND ACTUATORS TO HANG FREELY. THIS CAN CAUSE DAMAGE TO EQUIPMENT. (1) Install the support stand for the steering actuators.
(2) Install the holding tool for the torsion link.
(3) Disconnect the steering actuators from the torsion link.
(a) Remove the lockbolt (23), nut (24), and splined washer (22).
(b) Remove the apex pin (15) and the nylon alignment washers (16). www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：747-400 AMM 飞机维护手册 起落架 LANDING GEAR 9
