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A
737-300/400/500MAINTENANCE MANUAL
 (f) Make sure the control wheel forces are symmetrical.
 1)  If the control wheel force is not symmetrical by a ratio of 2 to 1 or more, measure the forces: a) Use a push-pull scale to push down on the handgrip
 knobs of the control wheel. b) Turn the control wheel clockwise 30 degrees. c) Write down the control wheel force. d) Turn the control wheel counterclockwise 30 degrees. e) Write down the control wheel force.
 S 865-066
 (12)
 Set the FLT CONTROL A switch to STBY RUD.

 S 865-065

 (13)
 Set the FLT CONTRL B switch to OFF.

 S 865-067

 (14)
 Do all the steps to find and correct asymmetrical flight control forces again.

 S 865-068

 (15)
 Set the SPOILER A and B switches and FLT CONTROL A and B switches back ON.

 G.  
Adjust the Tab Control Rod

 NOTE: You can do an additional flight test to make sure the adjustment
____
 is correct, but it is not necessary.

 S 825-069
 (1)  
If the control wheel force is not symmetrical by a ratio of more than 2 to 1, adjust the lengths of the tab control rods (Fig. 510):

 (a)  
Release the pressure from hydraulic systems A and B (AMM 27-11-00/201).

 (b)  
Adjust the tab control rods (AMM 27-09-71/501).

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 27-11-00
 ALL  ú ú 02 Page 542 ú Nov 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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737-300/400/500MAINTENANCE MANUAL
 AILERONS - REMOVAL/INSTALLATION
_______________________________
 1.  General
_______
 A.  There are two tasks in this procedure. There is one task for the removal and one task for the installation of the ailerons.
 B.  The aileron assembly has the aileron, balance tab, and balance panel.
 C.  It is not necessary to use a new balance tab and balance panel for the replacement of a spare aileron. It is necessary to use the same number of the adjust weights for the balance tab as on the tab data plate.
 D.  The graphite/composite ailerons and the aluminum/fiberglass ailerons are interchangeable only as pairs of the same type. An aluminum/fiberglass aileron on one wing with a graphite/composite aileron on the opposite wing is not a permitted configuration.
 TASK 27-11-11-004-002
 2.  Aileron Removal
_______________
 A.  Special Tools and Equipment
 (1) F70207-93 Rigging Pins Kit:
 ~.......................................................................... | REF NO. | F70207-( ) | DIAMETER | LENGTH | | | | | (INCHES) | (INCHES) | FUNCTION | ............................................................................ | A/S-4 | -11 | 0.309-0.311 | 6.7 |0.25 | AILERON BUS DRUM | 2.........…............…..............…..............….....................1
 B.  Standard Tools and Equipment
 (1)
Straightedge - 6 inches long

 (2)
Spring Scale - graduated from 0 to 20 pounds

 C.  
Consumable Materials

 (1)
D00015 Grease - Corrosion Preventive, BMS 3-24

 (2)
C00259 Enamel - Primer, BMS 10-11, Type I

 D.  
References

 (1)
AMM 27-11-21/401, Aileron Balance Tab ú (2) AMM 12-31-61/201, Wing Lower Surface Access Doors and Panels

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 27-11-11
 ALL  ú ú 02.1 Page 401 ú Jul 12/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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737-300/400/500MAINTENANCE MANUAL 
HINGE 2  HINGE 1 
WING REAR SPAR  HINGE 4 ASEE  HINGE 3 ASEE  ADJUST WEIGHTS BALANCE TAB  PANEL BALANCE  SEE  B  SEE  A 

WING
TRAILING
EDGE

AILERON
0.55-0.75 INCH 2 0.30-0.60 INCH 3
FWD INBD
HINGE
FITTING
(WING)

BONDING JUMPER
HINGE
BOLT
1 BEARING
SUPPORT

A
1
INSTALL BOLT HEADS OUTBOARD FOR HINGES 2, 3 AND 4, INSTALL BOLT HEAD INBOARD FOR HINGE 1
　
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