747-400 AMM 飞机维护手册 起落架 LANDING GEAR 2(75)

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 A.  General
 (1)  
The adjustment of the door is necessary if a door is out of the contour or after the door replacement. Examine the doors for the open and closed dimensions and clearance, the sequence valve rigging, the system preload, and the last check.

 (2)  
You adjust the strike board to keep the operating clearance and the correct position to the door structure.

 (3)  
During the adjustment procedure, use the safety precautions to prevent injury to persons when you open and close the door.

 (4)  
It is important to have the symmetrical door position. This will make sure you get the correct adjustment of the doors. Do the door close checks with the left and right doors closed.

 B.  
Special Tools and Equipment

 (1)  
G12001, Rigging Pin Kit ~.................................................................. | Rigging Pin No. | Minimum Length (Inches) | Diameter (Inches) | .................................................................... | WD-1 (LH) | 3.25 | 0.185 - 0.188 | .................................................................... | WD-2 (RH) | 3.25 | 0.185 - 0.188 | .................................................................... | WD-3 (LH) | 3.25 | 0.245 - 0.255 | .................................................................... | WD-4 (RH) | 3.25 | 0.245 - 0.255 | 2.................…...........................…....................1

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 32-12-00
 ALL  ú ú 01 Page 501 ú Jun 10/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 C. References
 (1)  
AMM 07-11-01/201, Jacking Airplane

 (2)  
AMM 09-11-00/201, Towing

 (3)  
AMM 24-22-00/201, Manual Control

 (4)  
AMM 29-11-00/201, Main Hydraulic Supply System

 (5)  
AMM 32-00-30/201, Landing Gear Door Locks

 (6)  
AMM 32-61-32/201, Wing Landing Gear Door Warning Sensor

 D.
Access

 (1)  
Location Zone
 731 Wing Landing Gear Door, Center Section,
 Inboard Panel, LH
 741 Wing Landing Gear Door, Center Section,
 Inboard Panel, RH
 732 Wing Landing Gear Door, Center Section,
 Outboard Panel, LH
 742 Wing Landing Gear Door, Center Section,

 

 Outboard Panel, RH 733 Wing Landing Gear Door, Wing Inboard Panel 743 Wing Landing Gear Door, Wing Inboard Panel 734 Wing Landing Gear Door, Wing Outboard Panel 744 Wing Landing Gear Door, Wing Outboard Panel
 E. Preconditions
 S 865-205
 (1)  
These conditions are necessary for this task:

 (a)  
The airplane is on jacks (AMM 07-11-01/201).

 (b)  
Hydraulic systems No. 1 and 4 are serviceable (AMM 29-11-00/201).

 F.
Prepare for the Adjustment

 S 865-180
 WARNING: YOU MUST CAREFULLY INSTALL THE GROUND LOCKS IN ALL LANDING
_______ GEAR. AN ACCIDENTAL RETRACTION OF THE LANDING GEAR CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
 (1)  Install the ground locks in all the landing gear (AMM 09-11-00/201).
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 32-12-00
 ALL  ú ú 01 Page 502 ú Oct 10/96
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 495-181
 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 Nose Landing Gear" (AMM 32-00-30/201).

 S 495-182

 (3)  
Do this task: "Installation of the Door Locks on the Wing Landing Gear" (AMM 32-00-30/201).

 S 495-183

 (4)  
Do this task: "Installation of the Door Locks on the Body Landing Gear" (AMM 32-00-30/201).

　
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