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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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 (3)  
AMM 32-09-02/201, Air/Ground Relay System

 (4)  
AIPC 32-61-10 Fig. 11

 C.  
Access

 (1)  
Location Zones
 137 Body Landing Gear Wheel Well, (left gear)
 138 Body Landing Gear Wheel Well, (right gear)


 D.  
Prepare for Removal


 S 492-002
 (1)  Make sure that the ground locks for the landing gear are installed (AMM 09-11-00/201).
 S 492-033
 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 Wing Landing Gear" (AMM 32-00-30/201).
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 32-61-31
 ALL  ú ú 01 Page 201 ú Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 S 492-034
 (3)  Do this task: "Installation of the Door Locks on the Body Landing Gear" (AMM 32-00-30/201).
 S 042-035
 WARNING: YOU MUST CAREFULLY DO THE STEPS IN TASK BELOW TO PREPARE THE
_______ SAFETY-SENSITIVE SYSTEMS FOR THE AIR MODE. FAILURE TO DO THE STEPS CORRECTLY CAN CAUSE THE AUTOMATIC OPERATION OF AIRPLANE SYSTEMS. THIS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
 (4)  
Do this task: "Prepare Safety-Sensitive Systems for Air Mode Simulation" (AMM 32-09-02/201).

 S 862-005

 (5)  
For the removal of the alternate sensor, open this circuit breaker on the P7 Overhead Circuit Breaker Panel and attach a DO-NOT-CLOSE tag:

 (a)  
7F23, LANDING GEAR DSP & CONT ALTN


 S 862-006
 (6)  
For the removal of the primary sensor, open this circuit breaker on the P7 Overhead Circuit Breaker Panel and attach a DO-NOT-CLOSE tag:

 (a)  
7F22, LANDING GEAR DSP & CONT PRI

 E.
Remove the Door Warning Sensor (Fig. 201).


 S 032-036
 (1)  
Disconnect the sensor wires:

 (a)  
Remove the cover from the junction box (J23 LH, J24 RH).

 (b)  
Remove sealant (potting) material from the electrical terminals with the plastic scraper.

 (c)  
Make a record of the connection of the wires at the terminal strip.


 NOTE: This will help you during the installation.
____
 (d)  
Disconnect the sensor wires from the terminal strip.

 (e)  
Remove the terminal lugs from the wires.

 (f)  
Attach a line to end of the sensor wires.


 NOTE: You will use this line to pull the sensor wires through
____ the conduit during the installation. Make sure the line is longer than the length of the conduit.
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 32-61-31
 ALL  ú ú 01 Page 202 ú Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
DOORSTOP SUPPORT BEAMS
MOUNTING SEE A
BRACKET
A
PRIMARY DOOR WARNING SENSOR (S408LH, S409RH)
A
ALTERNATE DOOR
CONDUIT WARNING SENSOR
FWD SENSORS
(S428LH,S427RH)
A
MOUNTING
SCREW
TARGET
TARGET

RADIUS FILLER DOOR STOP
1
SUPPORT
BODY GEAR, OUTBOARD DOOR0.10 |0.03
SHOWN IN THE CLOSED POSITIONINCH
CLEARANCE 2
UP
0.10 |0.03 1 MAKE SURE THE RADIUS FILLER INCH CLEARANCE
IS ON THE OUTBOARD SIDE
2
2  MEASURE THE CLEARANCE WITH THE DOOR CLOSED AND LOCKED, AND HYDRAULIC PRESSURE OFF
DOOR WARNING SENSOR FOR THE LEFT BODY GEAR IS SHOWN
DOOR WARNING SENSOR FOR THE RIGHT BODY GEAR IS EQUIVALENT
A-A

Body Gear Door Warning Sensor Installation
Figure 201

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本文链接地址:747-400 AMM 飞机维护手册 起落架 LANDING GEAR 9(114)