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747-400 MAINTENANCE MANUAL
 S 034-166
 (2)  
Remove the screws that attach the top left and the right side pressure bulkhead panels to the aft pressure bulkhead.

 S 024-167

 (3)  
Remove the upper panel assembly.

 S 034-168

 (4)  
If it is necessary, remove the screws and the washers that attach the vertical cover and the backing strips.

 NOTE: These are between the left and the right panels.
____
 S 034-169
 (5)  
Pull the left and the right panels apart.

 S 024-170

 (6)  
Remove the screws that attach the lower left and the right side pressure bulkhead panels to the aft pressure bulkhead.

 S 024-171

 (7)  
Remove the lower panel assembly.

 S 034-172

 (8)  
If it is necessary, remove the screws and the washers that attach the vertical cover and the backing strips.

 NOTE: These are between the left and the right panels.
____
 S 034-173
 (9)  Pull the left and the right panels apart.
 TASK 25-59-01-404-176
 3.  Main Deck Compartment Cargo Lining Panels Installation (Fig. 401)______________________________________________________
 A. General
 (1)  The instructions in this task are general steps that are necessary for installation of the main deck compartment panels. The instructions are applicable to most panels. Do only the necessary steps to install the applicable panels.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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747-400
MAINTENANCE MANUAL

 B. References
 (1)  
20-09-01/201, Floor Panel Protection

 (2)  
24-22-00/201, Manual Control

 (3)  
25-57-00/501, Main Deck Cargo Handling System

 C. Access
 (1)  Location Zone
 210 Main Deck

 D. Install the Main Deck Sidewall Panels
 S 424-178
 (1)  
Put the upper sidewall panel in its position.

 S 434-179

 (2)  
Install the screws and washers to attach the vertical cover strips to the upper sidewall panel.

 S 424-180

 (3)  
Put the lower sidewall panel in its position.

 S 434-181

 (4)  
Install the screws and washers to attach the vertical cover strips to the lower sidewall panel.

 S 434-182

 (5)  
Install the screws and washers to attach the horizontal cover strips to the lower sidewall panel.

 S 434-183

 (6)  
Install the screws and washers to attach the cover plates to the sidewall panel.

 S 434-184

 (7)  
Connect the electrical connectors to the applicable reveal panels that are on the sidewall panel.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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747-400 MAINTENANCE MANUAL
 S 414-185
 (8)  
Install the bolts to attach the applicable reveal panels to the sidewall panel.

 S 864-186

 (9)  
Remove the DO-NOT-CLOSE tags and close the circuit breakers for the applicable sidewall panel:

 (a)  
On the P415 Power Distribution Center Right Panel

 (b)  
On the P34 Main Deck Cargo Handling Power Panel

 (c)  
On the P128 Main Deck Cargo Handling Power Panel

 (d)  
On the P129 Main Deck Cargo Handling Power Panel
　
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