W DOC AIRBUS | AMM A320F

Removal of the Actuator Eye-End of the Aileron Servo-Control

TASK 27-14-51-000-006-A
Removal of the Actuator Eye-End of the Aileron Servo-Control

WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:
  • THE FLIGHT CONTROLS
  • THE FLIGHT CONTROL SURFACES
  • THE LANDING GEAR AND THE RELATED DOORS
  • COMPONENTS THAT MOVE.
MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.
WARNING: MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR. THIS WILL PREVENT UNWANTED MOVEMENT OF THE LANDING GEAR, AND THUS POSSIBLE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.
CAUTION: BE CAREFUL WHEN YOU DO MAINTENANCE TASKS ON THE WING TRAILING EDGE:
  • DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE RACEWAYS.
  • DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE INSTALLATIONS.
  • MAKE SURE THAT THE ELECTRICAL CABLES ARE INSTALLED CORRECTLY. INCORRECT INSTALLATION CAN CAUSE DAMAGE.
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
SAFETY BARRIER(S)
No specific
AR
WARNING NOTICE(S)
0U144765
1
WRENCH - AILERON SERVOCONTROL ADJUSTMENT
0U144768
1
HOLDING WRENCH - AILERON SERVOCONTROL ADJUSTMENT
 B. Referenced Information
REFERENCE
DESIGNATION
TASK 27-14-51-000-001-A
Removal of the Aileron Servo Control
F Actuator Eye End - Location and Details
3. Job Set-up
Subtask 27-14-51-941-073-A
A. Safety Precautions
   (1) Put the SAFETY BARRIER(S) in position.
   (2) Put a WARNING NOTICE(S) in position to tell persons not to operate the flight controls.
Subtask 27-14-51-020-055-A
B. Removal of the Aileron Servo-Control Block
   (1) Remove the aileron servo-control block (Ref. AMM TASK 27-14-51-000-001).
   (2) Take the servo-control block to a workshop bench and clamp it so that you can do work on the eye-end.
4. Procedure
CAUTION: BE CAREFUL WHEN YOU DO MAINTENANCE TASKS ON THE WING TRAILING EDGE:
  • DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE RACEWAYS.
  • DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE INSTALLATIONS.
  • MAKE SURE THAT THE ELECTRICAL CABLES ARE INSTALLED CORRECTLY. INCORRECT INSTALLATION CAN CAUSE DAMAGE.
Subtask 27-14-51-020-056-A
A. Removal of the Actuator Eye-End of the Aileron Servo-Control
WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.
   (1) Remove and discard the lockwire from the two screws (1).
   (2) Remove the screws (1), the washers (2) and the lockplate (8).
   (3) Use the 0U144765 WRENCH - AILERON SERVOCONTROL ADJUSTMENT and 0U144768 HOLDING WRENCH - AILERON SERVOCONTROL ADJUSTMENT to release the eye-end (13) from the actuator body.
NOTE: A torque force of between 6 m.daN (44.2 lbf.ft) and 7 m.daN (51.6 lbf.ft) will be necessary to release the eye-end.
NOTE: There is a Linear Variable Displacement Transducer (LVDT) in the servo-control block. The core of the LVDT is attached to the eye-end. When you remove the eye-end, the LVDT core is also removed. The coil of the LVDT stays in the actuator body.
   (4) Remove the eye-end (13):
CAUTION: DO NOT CAUSE DAMAGE TO THE LVDT CORE WHEN YOU REMOVE THE ACTUATOR EYE-END. THE CORE AND THE COIL ARE A PAIR. IT WILL BE NECESSARY TO USE THEM AGAIN.
     (a) Remove the eye-end (13) from the actuator body, together with the LVDT core (7).
     (b) Remove the lockwasher (9) from the end of the actuator body.
Subtask 27-14-51-220-054-A
B. Dimensional Checks
   (1) Measure and write down dimension 'X' (the length from the end of the LVDT core to the rear face of the eye-end flange).
Subtask 27-14-51-020-057-A
C. Remove the LVDT Core
WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.
   (1) Remove and discard the lockwire from the two screws (16).
   (2) Remove the screws (16), the washers (15) and the lockplate (14).
   (3) Compress the spring (6) and remove the slotted-cup (10). Remove the spring (6) and the blocking-cup (11).
   (4) Remove the pin (12).
   (5) Remove the LVDT core (7) from the adjusting nut (4) to release the:
  • LVDT core (7)
  • adjusting nut (4)
  • washers (3) and (5).
[Rev.10 from 2021] 2026.03.31 23:47:43 UTC
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