B.  
Access

 (1)  
Location Zone
 216 Main Wheel Well, LH
 406 Main Wheel Well, RH

 C.  
Do a Check of the Power Control Unit Linkage

 S 026-001
 (1)  
Do this task: "Aileron Power Control Unit Linkage Removal" (Ref 27-11-14/401).

 S 226-002

 (2)  
Do a check of the linkage (Fig. 601):

 (a)  
Remove the parts to be examined.

 (b)  
Measure the dimensions of these parts.

 (c)  
Compare the part dimensions to the limit dimensions.

 (d)  
If the part dimension is out of tolerance, replace the part.

 (e)  
Install all the parts removed to do the check.

 S 426-003
 (3)  Do this task: "Aileron Power Control Unit Linkage Installation" (AMM 27-11-14/401).
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 ALL  ú ú 01 Page 601 ú Jul 15/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

737-300/400/500
MAINTENANCE MANUAL

SEE A
AILERON POWER CONTROL UNIT (SYSTEM B)
C
B
CONTROL UNIT
ATTACH BOLT

A B
A
AILERON POWER CONTROL UNIT (SYSTEM A)
C
REACTION FWD INBD LINKS
VALVE CONTROL ROD (2 LOCATIONS)
A
Aileron Power Control Unit Linkage Wear Limits Figure 601 (Sheet 1)
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 ALL  ú ú 01 Page 602 ú Mar 15/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL 
(2 LOCATIONS) 6. BUSHING/BUSHING 
2. BUSHING/BOLT  3. LINK/SPACER 
1. BUSHING/BOLT 4. SPACER/BOLT  5. ROD/BOLT 
A-A  B-B 
7. BEARING/SHAFT
8. BEARING/SHAFT  11. BEARING/BOLT 10. LEVER/BEARING 9. REACTION LINK/BEARING 
13. BEARING/SHAFT  12. REACTION LINK/BEARING 
15. BEARING/SHAFT  14. SUPPORT/BEARING 
13. BEARING/SHAFT 15. BEARING/SHAFT  12. REACTION LINK/BEARING 14. SUPPORT/BEARING 
11. BEARING/BOLT 10. LEVER/BEARING 
8. BEARING/SHAFT  9. REACTION LINK/BEARING 
7. BEARING/SHAFT 
C-C Figure 601 (Sheet 2) Aileron Power Control Unit Linkage Wear Limits 

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 ALL  ú ú 01 Page 603 ú Mar 15/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
NO. INDEX  PART NAME  DIM.  DESIGN LIMITS  WEAR LIMITS  PART WORN REPLACE  PART WORN REPAIR  INSTR REPAIR 
DIAMETER  PER-MITTED WEAR DIM.  ANCE CLEAR-MAX DIA 
MIN  MAX 
1  BUSHING  ID  0.6245  0.6250  0.6250  0.0017 
BOLT  OD  0.6237  0.6242  0.6233  X  X  X 
2  BUSHING  ID 0.6245  0.6250  0.6250  0.0017  X 
BOLT  OD  0.6237  0.6242  0.6233  X 
3 LINK  ID  0.3906  0.3940  0.3940  0.0290  X 
SPACER  OD  0.3650  0.3850  0.3850  X 
4 SPACER  ID  0.2560  0.2970  0.2970  0.0485  X 
BOLT  OD  0.2485  0.2495  0.2485  X 
5 ROD  ID  0.3120  0.3130  0.3135  0.0030  X 
BOLT  OD  0.3110  0.3120  0.3105  X 
6 BUSHING  ID  0.0000  1.0005  1.0015  0.0030  X 
BUSHING  OD  0.9990  0.9995  0.9985  X 
7 BEARING  ID  0.7495  0.7500  0.7500  1 0.0020  X 
　
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