(2)  
Access Panel
 831L Door - No. 1 Main Entry, LH
 841R Door - No. 1 Main Entry, RH
 832L Door - No. 2 Main Entry, LH
 842R Door - No. 2 Main Entry, RH
 833L Door - No. 3 Main Entry, LH
 843R Door - No. 3 Main Entry, RH
 834L Door - No. 4 Main Entry, LH
 844R Door - No. 4 Main Entry, RH
 835L Door - No. 5 Main Entry, LH
 845R Door - No. 5 Main Entry, RH

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 52-73-01
 ALL  ú ú 01 Page 401 ú Feb 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

Auto/Manual Indication System Switches
Figure 401 (Sheet 1)

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 52-73-01
 ALL  ú ú 02 Page 402 ú Oct 10/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

DISARM POSITION
A-A

ON DOORS 1-4
Auto/Manual Indication System Switches Figure 401 (Sheet 2)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 52-73-01
 ALL  ú ú 14 Page 403 ú Oct 10/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

MODE SELECTOR LEVER MODE SELECTOR LEVER
(MANUAL POSITION) (AUTOMATIC POSITION)
CLEARANCE
B
MANUAL SWITCH
SWITCH
ACTUATOR
B
WIRE
SWITCH
ACTUATOR

4
AUTOMATIC SWITCH
4
MANUAL POSITIONAUTOMATIC POSITION
A-A 2
3 3
SWITCH
SWITCH ACTUATOR
B-B
2 ON DOOR 5
3 ALIGN THE SWITCH AND SWITCH ACTUATOR TO MAKE THIS DIMENSION LESS THAN 0.03 INCH.
4 SECTION B-B SHOWS HOW TO ALIGN THE SWITCH AND THE SWITCH ACTUATOR
Auto/Manual Indication System Switches
Figure 401 (Sheet 3)

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 52-73-01
 ALL  ú ú 14 Page 404 ú Oct 10/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 C. Procedure
 S 864-002
 (1)  
Open these circuit breakers and attach DO-NOT-CLOSE tags:

 (a)  
P7 Overhead Circuit Breaker Panel
 1) 7A1 MAWEA PWR A
 2) 7B1 MAWEA PWR B

 S 014-003
 (2) Remove the lining from the applicable door (AMM 52-11-02/401).
 S 864-004
 WARNING:_______DO NOT OPEN A DOOR DURING THE REMOVAL. THE DOOR EMERGENCY MECHANISM WILL OPERATE IF YOU OPEN A DOOR WITH THE MODE SELECTOR LEVER IN THE ARMED (AUTOMATIC/ARM) POSITION. THE EMERGENCY OPERATION OF THE DOOR AND ESCAPE SYSTEM CAN CAUSE DAMAGE TO EQUIPMENT AND INJURY TO PERSONS.
 (3)  
Make sure the mode selector lever stays in the disarmed (MANUAL/DISARM) position when you remove the switch.

 S 024-005

 (4)  
Remove the switch:

 (a)  
Remove the mode selector lever if it is necessary to get access to the switch.

 (b)  
Disconnect the electrical connector from the switch.

 (c)  
Remove the bolts that attach the switch to the bracket.

 TASK 52-73-01-404-006
 3.  Auto/Manual Indication Switch Installation (Main Entry Door)____________________________________________________________
 A. References
 (1)  
AMM 52-11-02/401, Main Entry Door Lining and Insulation

 (2)  
AIPC 52-73-01, Fig 1

 (3)  
SSM 52-73-01

 (4)  
WDM 52-73-11, WDM 52-73-12, WDM 52-73-13
　
中國航空網(wǎng) www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：747-400 AMM 飛機(jī)維護(hù)手冊 艙門 DOORS 4(103)