45-10-03
 ALL  ú ú 01 Page 301 ú Feb 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 C. Access
 (1)  Location Zone
 117 Electrical and Electronics Compartment, LH

 D. Procedure
 S 103-036
 CAUTION: DO NOT USE ABRASIVE MATERIALS WHEN YOU CLEAN THE DISPLAY
_______ SURFACE. ABRASIVE MATERIALS WILL CAUSE SCRATCHES IN THE DISPLAY SURFACE.
 (1)  
Remove all particles from the display surface with a clean, soft, natural-bristle brush.

 S 113-033

 (2)  
Clean the grease, oil, and contamination from the display surface with a lint-free cloth and the standard household glass cleaner:

 (a)  Apply the glass cleaner to the cloth.
 CAUTION: DO NOT USE TOO MUCH FORCE WHEN YOU CLEAN THE DISPLAY
_______ SURFACE WITH THE CLOTH. DO NOT USE A DRY CLOTH ON THE DISPLAY. TOO MUCH FORCE OR A DRY CLOTH WILL CAUSE DAMAGE TO THE DISPLAY SURFACE.
 (b)  
Use the moist cloth to clean the glass in a straight line from top to bottom.

 (c)  
Gradually move from one side of the display to the other side while you clean from top to bottom.

 (d)  
Frequently change to a clean area of the moist cloth.

 (e)  
Remove the excess glass cleaner before it dries.

 (f)  
Let the display dry.

 (g)  
If a thin layer of dry glass cleaner stays on the display, clean again in a straight line from top to bottom with a clean, moist cloth.

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 REMOTE CONTROL DISPLAY UNIT - REMOVAL/INSTALLATION
__________________________________________________
 1.  General
_______
 A.  This subject has two tasks. The first task is the removal of the remote control display unit (RCDU). The second task is the installation of the RCDU. The installation task includes a test of the installation of the RCDU.
 B.  The RCDU is installed in the main equipment center at STA 402, WL 188, LBL 57.
 TASK 45-10-03-024-032
 2.  Remote Control Display Unit Removal
___________________________________
 A.  Access
 (1)  Location Zone 117 Electrical and Electronics Compartment, LH
 B.  Procedure
 S 864-033
 (1) Open these circuit breakers and attach DO-NOT-CLOSE tags:
 (a)  P415 Power Distribution Center - Right 1) 415H30 RCDU 2) 415K32 RCDU PANEL LIGHTING
 S 024-035
 CAUTION: DO NOT TOUCH THE CONNECTOR PINS OR OTHER CONDUCTORS ON THE
_______ RCDU. IF YOU TOUCH THESE CONDUCTORS, ELECTROSTATIC DISCHARGE FROM YOUR BODY CAN CAUSE DAMAGE TO THE RCDU.
 (2)  Remove the RCDU:
 (a)
Disconnect the electrical connector from the RCDU.

 (b)
Release the fasteners on the front of the RCDU.

 (c)
Pull the RCDU carefully out of its mounting bracket.

 (d)
Install dust caps on the electrical connectors.

 TASK 45-10-03-424-036
 3.  Remote Control Display Unit Installation
________________________________________
 A.  References
 (1)  
24-22-00/201, Manual Control

 (2)  
IPC 45-45-51, Fig. 1

 B.  Access
 (1)  Location Zone 117 Electrical and Electronics Compartment, LH
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 C. Procedure
 S 864-037
 (1)  Make sure these circuit breakers are open with DO-NOT-CLOSE tags attached:
 (a)  P415 Power Distribution Center - Right
 1) 415H30 RCDU
 2) 415K32 RCDU PANEL LIGHTING

 S 424-039
　
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