S 494-003

 (2)  
Make sure that the landing gear downlocks are installed (Ref 32-00-20).

 S 864-002
 S 494-004
 WARNING:_______MAKE SURE THAT THE DOOR LOCKS ARE INSTALLED CORRECTLY. FAST MOVEMENT OF THE DOORS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (3)  
Open the main gear doors and install the door locks (Ref 32-00-15).

 S 864-005

 (4)  
Remove power from the left, center, and right hydraulic systems (Ref 29-11-00).

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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

757
MAINTENANCE MANUAL

AILERON QUADRANT AND OVERRIDE MECHANISM SEE A  OVERRIDE MECHANISM CSEE LATERAL CONTROL  AILERON HINGE RIB  CAM  ROLLER ARM 
FWD 
á á  ARM SUPPORT BRACKET  AILERON QUADRANT 
BSEE CENTERING, AND TRIM MECHANISM LATERAL FEEL,  (4 LOCATIONS) BOLT WASHER RETAINER NUT  RIG PIN HOLE A3 (LEFT) A4 (RIGHT)  CABLE A1B (LEFT) CABLE A2B (RIGHT) CABLE A1A (LEFT) CABLE A2A (RIGHT) 
AILERON QUADRANT AND OVERRIDE MECHANISM 
A 
RIG PIN HOLES A1 
RIG PIN HOLES A2 

FWD INBD INBD FWD
LATERAL FEEL, CENTERING, AND TRIM MECHANISM
LATERAL-CONTROL OVERRIDE MECHANISM
B C
Aileron Quadrant and Override Mechanism Installation Figure 401
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
 S 014-006
 (5)  
Open access panels 561AB and 561BB (left wing) or 661AB and 661BB (right wing) (Ref 06-44-00).

 S 824-007

 (6)  
Remove the tension from wing cables A1A and A1B (left) or A2A and A2B (right).

 NOTE: The turnbuckles are located outboard of the lateral control
____
 mechanisms in the wheel wells.

 S 034-008
 (7)  
Disconnect wing cables A1A and A1B (left) or A2A and A2B (right) from the aileron control quadrant and override mechanism. Use tags to identify the cables.

 S 034-009

 (8)  
Pry the cam roller arm from the cam to access the bolt that connects the control rod to the mechanism. Disconnect the control rod from the mechanism.

 S 024-010

 (9)  
Disconnect the mechanism and the support bracket from the hinge rib.

 TASK 27-11-17-424-011
 3. Install Aileron Quadrant and Override Mechanism
_______________________________________________
 A. General
 (1)  
This task contains the data that is necessary to install and test the Aileron Quadrant and Override Mechanism. For the applicable wear limit data, refer to 27-11-17.

 B.
Equipment

 (1)  
Rig Pins from Set B20003-XX (Ref 20-10-24):

 (a)  
A1 - P/N B20003-27

 (b)  
A2 - P/N B20003-25

 (c)  
A3 - P/N B20003-23

 (d)  
A4 - P/N B20003-23

 (2)  
Cable Tensiometer, commercially available

 C.
References

 (1)  
24-22-00/201, Electrical Power - Control

 (2)  
27-11-17/601, Aileron Quadrant and Override Mechanism

 (3)  
29-11-00/201, Pressurize/Depressurize Main Hydraulic Systems

 (4)  
32-00-15/201, Landing Gear Door Locks

 D.
Access

 (1)  
Location Zones
 568 Aileron (Left)
 668 Aileron (Right)
 730 Left Main Landing Gear and Doors
 740 Right Main Landing Gear and Doors

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 27-11-17
 ALL  ú ú 01 Page 403 ú Jun 20/90
　
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