(2)  
The installation of the switch on the upper deck door.

 C.  
The automatic mode switch is used for the emergency door operation and indication. Refer to AMM 52-23-16/401 to remove or install this switch.

 TASK 52-73-02-004-012
 2.  Manual Position Indicating Switch Removal from the Upper Deck Door (Fig. 401)__________________________________________________________________
 A.  Standard Tools and Equipment
 (1)  
Maintenance stand (for access to the upper deck door).

 B.  
References

 (1)  
AMM 52-23-02/401, Door Lining

 (2)  
IPC 52-73-01, Fig 1

 (3)  
SSM 52-73-01

 (4)  
WDM 52-73-11

 C.  
Access

 (1)  
Location Zone
 223 Passenger Cabin, Fwd Upper Deck, LH
 224 Passenger Cabin, Fwd Upper Deck, RH

 (2)  
Access Panel
 837L Upper Deck Emergency Door, LH
 847R Upper Deck Emergency Door, RH

 D.  
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 864-016
 (2)  
Open these circuit breakers and attach DO-NOT-CLOSE tags:

 (a)  
P180 DC Power Distribution Panel
 1) 180G3 LH UPR DK DR BAT
 2) 180D3 RH UPR DK DR BAT

 (b)  
Battery Pack Bracket 1) C8603 - CARTRIDGE - LH UPPER DECK DOOR

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 52-73-02
 ALL  ú ú 01 Page 401 ú Jun 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

747-400
MAINTENANCE MANUAL

A
CLAMPWIRE
MANUAL SWITCH
SEE A CLAMP
A
CRANK
UPPER DECK DOOR
SWITCH ACTUATOR SWITCH SEEB
MANUAL SWICH A
Upper Deck Door Manual Position Indicating Switch Installation Figure 401 (Sheet 1)
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 52-73-02
 ALL  ú ú 01 Page 402 ú Oct 10/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

CLAMP (4 LOCATIONS)
SCREW (2 LOCATIONS)
SCREW
(4 LOCATIONS)

SHIM
SWITCH
WASHER
(2 LOCATIONS)

NUT SWITCH(2 LOCATIONS) ACTUATOR
B
SWITCH
0.19-0.21 INCH
A-A
Upper Deck Door Manual Position Indicating Switch Installation Figure 401 (Sheet 2)
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 52-73-02
 ALL  ú ú 01 Page 403 ú Apr 10/89
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 2) C8604 - CARTRIDGE - RH UPPER DECK DOOR
 S 014-013
 (3)
Remove the lining from the applicable door (AMM 52-23-02/401).

 S 494-019

 (4)
Put the maintenance stand outboard of the door.

 S 864-020

 (5)
Open the door.

 S 024-004

 (6)
Remove the switch.

 (a)
Identify the wires on the switch with labels.

 NOTE: This will make the subsequent installation easier.
____
 (b)
Disconnect the wires at the splices.

 (c)
Remove the clamps that hold the wire to the door.

 (d)
Remove the fasteners that hold the switch to the bracket.

 (e)
Remove the switch.

 TASK 52-73-02-404-017
 3.  Manual Position Indicating Switch Installation on the Upper Deck Door_____________________________________________________________________ (Fig. 401)
　
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