32-00-30
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 862-032
(5)
Release the pressure from hydraulic system No. 1 and No. 4 (AMM 29-11-00/201).
S 492-033
(6)
Install the door locks for the body gear doors as shown (Fig. 206).
S 032-034
WARNING: HOLD THE DOORS OPEN OR KEEP THE DOOR OPERATION AREA CLEAR.
_______ FAST MOVEMENT OF THE LANDING GEAR DOORS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
CAUTION: AFTER YOU INSTALL THE BODY GEAR DOOR LOCKS YOU MUST NOT OPERATE
_______ THE WING GEAR DOORS. THE BODY GEAR DOOR LOCKS ARE IN THE WAY OF THE WING GEAR DOOR OPERATION AREA.
(7) Disconnect the operator rods from the wing gear doors (Ref Disconnect the Wing Gear Door Operator Rods) or install wing gear door locks (Ref Install the Wing Gear Door Locks) if necessary.
TASK 32-00-30-492-035
8. Main Landing Gear Door Ground Release Handle Lock Installation
______________________________________________________________
A. Special Tools and Equipment
(1)
MIT65B82664 - Main Landing Gear Ground Door Release Handle Lock
B.
References
(1)
09-11-00/201, Towing
(2)
12-15-06/301, Landing Gear Tire
(3)
29-11-00/201, Main Hydraulic Supply System
C.
Access
(1)
Location Zone
137 Body Landing Gear Wheel Well, LH
138 Body Landing Gear Wheel Well, RH
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
32-00-30
ALL ú ú 01 Page 218 ú Feb 15/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
D. Procedure (Fig. 207)
S 492-080
(1) Make sure that you install ground locks on the landing gear (Ref 09-11-00/201).
S 612-070
CAUTION: MAKE SURE YOU DO THESE STEPS BEFORE YOU OPERATE THE DOORS:
_______ MAKE SURE SHOCK STRUTS (OLEOS) FOR THE BODY GEAR HAVE THE CORRECT MINIMUM DIMENSION. MAKE SURE THE TIRES ARE AT THE CORRECT PRESSURE. IF YOU DO NOT OBEY THESE INSTRUCTIONS, THE DOOR CAN HIT AND CATCH ON THE TIRES. IF THE STRUT AND TIRES ARE DEFLATED, THE BODY GEAR DOORS WILL HIT THE GROUND WHEN YOU OPEN THEM.
(2) Make sure the minimum X dimension for the body gear struts (oleos) is as shown on the foil marker.
NOTE: The marker is on the inner surface of the gear strut door,
____
below the handle.
S 612-071
(3) Make sure the tires are at the correct pressure (AMM 12-15-06/301).
S 862-037
WARNING: MAKE SURE THAT ALL PERSONS AND EQUIPMENT ARE CLEAR OF THE DOOR
_______ OPERATION AREA. FAST MOVEMENT OF THE DOORS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(4) Move the ground release handle for the wing and body gear doors to the DOORS OPEN position.
NOTE:____This will open the wing and body gear doors. Handles for main gear doors are on the keel beams near the aft inboard corners of body gear wheel wells. You can get to the handles through the strut door openings for the body gear.
S 862-038
(5)
Release the pressure from hydraulic systems No. 1 and No. 4
(AMM 29-11-00/201).
S 492-039
(6)
Install the door handle lock and install the pin as shown
(Fig. 207).
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú 中国航空网 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 1(29)
