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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
RIGGING 
PIN A/S-3 
AILERON 
SPRING 
AILERON BODY  TURNBUCKLE  CARTRIDGE 
QUADRANT  CABLE AB 
CABLE AA  CABLE 
ABSA 
RIGGING 
PRESSURE  PIN A/S-4 
DECK 
TURNBUCKLE 
CABLE ABSB 
SEE  A 
AILERON 
BUS DRUMS 
TURNBUCKLE 
RETAINING PLATE 
(4 LOCATIONS) 
CABLE  TURNBUCKLE 
ABSB 
FWD  INBD 
CABLE 
ABSA 

Aileron Power Control Unit Linkage Installation
Figure 401 (Sheet 1)

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

737-300/400/500
MAINTENANCE MANUAL

SAFETY LINK REACTION LINK(TOP) (TOP)
SAFETY LINK
(LOWER) AILERON POWER CONTROL UNIT (SYSTEM B)
SUPPORT (TOP)
SUPPORT SPACER (TOP)
DIAGONAL SUPPORT (TOP)
LEVER ASSEMBLY (TOP)
REACTION LINK SPACER (2 EACH) (TOP)
SUPPORT ASSEMBLY
(TOP) AILERON POWER CONTROL UNIT
SPRING CARTRIDGE(SYSTEM A) LEVER (TOP ONLY)
REACTION LINK (LOWER)
ALIGNMENT PIN
DIAGONAL 
FWD  SUPPORT 
SUPPORT  (LOWER) 
(LOWER)  BUS DRUMS 
INBD 

A

Aileron Power Control Unit Linkage Installation
Figure 401 (Sheet 2)

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 (b)  
Remove the nuts, washers, and screws that hold the plates to the aileron bus drum.

 (c)  
Disengage the cables ABSA and ABSB from the aileron bus drum.

 (d)  
Safety the disconnected cables.

 (e)  
On system B, remove the cotter pin, nut, washer, and bolt to disconnect the spring cartridge at the inboard end.

 (f)  
Remove the alignment pins between the support assemblies.

 (g)  
Remove the nuts, washers, and bolts to disengage the diagonal support from the structure.

 (h)  
Remove the nut, washer, spacer and bolt to disconnect the safety link from the outboard end of the reaction link.

 (i)  
Remove the nuts, washers, and bolts to disconnect the support from the structure.

 (j)  
Remove the linkage from the airplane.

 S 034-004
 (3)  
Disassemble the linkage:

 (a)  
Remove the cotter pin, nut, and washer to remove the support.

 (b)  
Remove the support spacer.

 (c)  
Remove the nut, washer, and bolt from the lever assembly.

 (d)  
Remove the reaction link, spacers, and lever assembly.

 (e)  
On system B, remove the nut, washer, and bolt from the spring cartridge lever.

 (f)  
Remove the lever.

 (g)  
On system A, remove the spacer.

 (h)  
Remove the support assembly.

 (i)  
Remove the lockbolts and the collars to remove the bus drum from the shaft.

 TASK 27-11-14-404-005
 3. Aileron Power Control Unit Linkage Installation
_______________________________________________
 A. Special Tools and Equipment
 (1)  F70207-93 Rigging Pins Kit:
 ~.............................................................................. | | | DIAMETER | LENGTH | | | REF NO. | F70207-( )| (INCHES) | (INCHES) | FUNCTION | ................................................................................
　
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