757 
FAULT ISOLATION/MAINT MANUAL 
LATERAL CONTROL 
OVERRIDE MECHANISM 
SEE  F 
BODY CABLE  BODY 
A1A BODY CABLE WING CABLE  A1B  ROD CONTROL  A2A CABLE BODY  A2B CABLE 
A1A  WING 
CABLE 
A2B 
LATERAL CONTROL 
FEEL, CENTERING, 
AND TRIM MECHANISM 
SEE  E 
WING 
CABLE 
A1B WING CABLE  OF THE CENTER ALCS) CENTER ALCS (THE LEFT ALCS IS FORWARD  ALCS RIGHT  A2A 
LATERAL CONTROL MECHANISMS 
D  FROM SHT 1
LATERAL 
TRIM 
ACTUATOR, 
M488 
FEEL 
SPRINGS  OVERRIDE 
SPRING 

TO THE ALCS CONTROL ROD  INBD  FWD 
FWD  INBD  TO THE ALCS CONTROL ROD 
E LATERAL CONTROL FEEL, CENTERING, AND TRIM MECHANISM  F OVERRIDE MECHANISM LATERAL CONTROL 

Aileron and Aileron Trim Control - Component Location
Figure 102 (Sheet 2)

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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

757 FAULT ISOLATION/MAINT MANUAL
AILERON QUADRANT AND OVERRIDE MECHANISM LEFT AILERON PCAS
SEE GAILERON QUADRANT AND SEE H OVERRIDE MECHANISM
SEE G LEFT AILERON
AILERON ROD PCA INPUTEND FAIRING LEVER HYDRAULIC RETURN LINERIGHT AILERON
RIGHT AILERON PCA INPUT ROD PCAS
SEE H  PCA FILTER
HYDRAULIC PRESSURE LINE
PCA
TO THE OUTBOARD  TO THE 
PCA  AILERON 
QUADRANT 
AND 
OVERRIDE 
MECHANISM 
TRUNNION
SPRING OVERRIDE  SUPPORT  LEFT OR RIGHT AILERON PCA  INBD 
(LEFT INBOARD PCA IS SHOWN) 
FWD 
H

AILERON
QUADRANT

OUTBD FWD
AILERON QUADRANT AND OVERRIDE MECHANISM (LEFT SIDE SHOWN, RIGHT SIDE IS OPPOSITE) G
Aileron and Aileron Trim Control - Component Location Figure 102 (Sheet 3)
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757 MAINTENANCE MANUAL
 AILERON AND AILERON TRIM CONTROL SYSTEM - ADJUSTMENT/TEST
_________________________________________________________
 1.  General_______
 A. This procedure contains these tasks:
 -Operational Test - Aileron and Aileron Trim Control
 -Adjustment - Aileron and Aileron Trim Control
 -System Test - Aileron and Aileron Trim Control
 -Aileron Bus Force Limiter and the Aileron Control Override Mechanism - Test (for Scheduled Maintenance Only)
 -Single Hydraulic System Aileron Control - Test (for Scheduled Maintenance Only)
 TASK 27-11-00-715-001
 2.  Operational Test - Aileron and Aileron Trim-Control System__________________________________________________________
 A. General
 (1)  
This procedure is used to make sure that the ailerons and the aileron-trim-control system operate correctly. Special equipment is not necessary.

 B.
References

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

 (2)  
29-11-00/201, Pressurize/Depressurize Main Hydraulic Systems

 C.
Access

 (1)  
Location Zones
 568 Aileron (Left)
 668 Aileron (Right)
 211/212 Control Cabin

 D.
Prepare for the Test

 (1)  
Supply electrical power (Ref. 24-22-00).

 S 865-003

 (2)  
Make sure these circuit breakers on the overhead panel, P11, are closed:

 (a)  
EICAS (6 locations)

 S 865-002
 S 825-004
 (3)  Push the STATUS button on the display select panel, P9, to show the control-surface position-indicator on the bottom EICAS display.
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