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时间:2011-04-13 07:53来源:蓝天飞行翻译 作者:航空
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 (9)  
Remove electrical power if it is not necessary (Ref 24-22-00/201).


 TASK 32-61-11-822-017
 5.  Adjust the Uplock Sensor for the Body Gear (Airplane on Jacks)______________________________________________________________
 A. References
 (1)  07-11-01/201, Jacking Airplane
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 ALL  ú ú 02 Page 209 ú Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 (2)  
09-11-00/201, Towing

 (3)  
24-22-00/201, Manual Control

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

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

 (6)  
32-09-03/501, Proximity Switch Electronics Unit

 (7)  
IPC 32-61-02 Fig. 21

 B.
Access

 (1)  
Location Zone
 137 Body Gear Wheel Well, Aft Bulkhead, Left Gear
 138 Body Gear Wheel Well, Aft Bulkhead, Right Gear


 C.
Prepare for the Adjustment


 S 862-056
 (1)  
Supply electrical power (Ref 24-22-00/201).

 S 862-103

 (2)  
Make sure there is no pressure in the No. 1 hydraulic system (Ref 29-11-00/201).

 S 492-019

 (3)  
Make sure that all of the ground locks for the landing gear are installed (Ref 09-11-00/201).


 S 492-105
 WARNING:_______OBEY THE INSTALLATION PROCEDURE FOR THE DOOR LOCKS. THE DOORS OPEN AND CLOSE QUICKLY. THE MOVEMENT OF THE DOORS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
 (4)  
Do this task: Installation of the Door Locks on the Wing Landing Gear (AMM 32-00-30/201).

 S 492-054

 (5)  
Do this task: Installation of the Door Locks on the Body Landing Gear (AMM 32-00-30/201).


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 ALL  ú ú 03 Page 210 ú Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 862-021
 (6)  
Make sure the control handle for the landing gear is in the OFF position.

 S 582-022

 (7)  
Lift the airplane on jacks until the tires are clear of the ground (Ref 07-11-01/201).

 S 862-023

 (8)  
Pressurize the No. 1 hydraulic system (Ref 29-11-00/201).

 S 492-055

 (9)
Remove the ground locks from the body gear (Ref 09-11-00/201).


 S 862-024
 WARNING: MAKE SURE THAT ALL PERSONS AND EQUIPMENT ARE CLEAR OF THE GEAR
_______ OPERATION PATH. THE FAST MOVEMENT OF THE GEAR CAN CAUSE INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT.
 (10)
 Move the control handle for the landing gear to the UP position.

 S 712-025

 (11)
 Make sure the body gear moves to the up and locked position.

 S 862-026

 (12)
 Remove hydraulic pressure from the No. 1 hydraulic system
 (Ref 29-11-00/201).


 D.
Adjust the Uplock Sensor


 S 822-027
 (1)  
Adjust the uplock sensor (1) as follows:

 (a)  
Make sure the clearance between the sensor and the target is as shown on Fig. 201.


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 ALL  ú ú 02 Page 211 ú Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 (b)  If the clearance is not correct, do these steps: 1) Remove the sensor from the mounting bracket. 2) Install new shims (4) or remove the laminations from the
 shim as it is necessary to get the correct clearance. 3) Install the sensor on the mounting bracket.
 
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