(a)  
Remove the parts to be examined from the trim actuator.

 (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 inspection/check.

 S 422-050
 (3)  Install the aileron trim actuator and the trim and feel mechanism (Refer to par. 2 through 5).
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 27-11-06
 ALL  ú ú 02 Page 218 ú Jun 10/96
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 INBOARD AILERON VERTICAL REACTION LINK - 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 inboard aileron vertical reaction link (referred to as the "vertical reaction link"). The procedure has these parts:
 (1)  
The installation of door locks on the doors for the main landing gear

 (2)  
The removal of the vertical reaction link

 (3)  
The installation of the vertical reaction link

 (4)  
The adjustment of the vertical reaction link

 (5)  
The operational test of the vertical reaction link.

 B.  
The vertical reaction link is one of the two primary components of the vertical reaction link assembly. Two pins attach the vertical reaction link to the wing structure. While the link is free to turn on the pins, only the vertical forces have an effect on the link. These forces are the result of airloads on the aileron when it moves.

 TASK 27-11-07-004-001
 2.  Inboard Aileron Vertical Reaction Link Removal______________________________________________
 A.  Special Tools and Equipment
 (1)  
ST2580-267 Spanner Wrench

 (2)  
6MIT65B04002 Spanner Wrench

 B.  
References

 (1)  
06-09-08/201, Wing Access Doors and Panels

 (2)  
29-11-00/201, Main Hydraulic Supply System

 (3)  
32-00-30/201, Landing Gear Door Locks

 (4)  
IPC 27-11-12 Fig. 2

 (5)  
SSM 27-11-01

 (6)  
WDM 27-11-11

 C.  
Access

 (1)  
Location Zone
 579 Inboard Aileron, LH
 679 Inboard Aileron, RH

 (2)  
Access Panel
 573AB Inboard Aileron Actuator, LH
 573BB Inboard Aileron Actuator, LH
 573CB Hydraulic, LH
 673AB Inboard Aileron Actuator, RH
 673BB Inboard Aileron Actuator, RH
 673CB Hydraulic, RH

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 ALL  ú ú 01 Page 401 ú Feb 10/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
SHIM RIG PIN A/S-8NUT A/S-9 (RIGHT WING)
LEFT ATTACH  CONTROL
BOLT QUADRANT
WASHER

INPUT QUADRANTCABLE AA CONTROL MOUNTING BRACKET
(LEFT WING) OR
ROD
AB (RIGHT WING)
CABLE AB (LEFT WING) OR AA (RIGHT WING)
WASHER
VERTICAL A REACTION LINK
LEFT ATTACH BOLT
WING SEE ASTRUCTURE
INBOARD AILERON RIGHT ATTACH POWER PACKAGE BOLT SEE B
INBOARD
AILERON

FORWARD MOUNT BOLT
FWD SEE C
RIGHT ATTACH BOLT
BUSHING
FORWARD
BUSHING  WASHER
MOUNT BOLT
WASHER
BUSHING
NUT
BUSHING
SHIM
BUSHING
NUT
SMALL

B
NUT
C
Inboard Aileron Vertical Reaction Link Installation
Figure 401 (Sheet 1)

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