W DOC AIRBUS | AMM A320F

Removal of the Attach Fittings Bearings of the THS Actuator Arm

TASK 55-16-34-000-001-A
Removal of the Attach Fittings Bearings of the THS Actuator Arm

WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.
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.
CAUTION: DO NOT CAUSE DAMAGE TO THE SURFACES. THE COMPONENTS ARE MADE OF CARBONFIBER REINFORCED PLASTIC.
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
1
ACCESS PLATFORM 3M (10 FT)
No specific
AR
SAFETY CLIP - CIRCUIT BREAKER
No specific
AR
WARNING NOTICE(S)
0U190360
1
PIN-RIGGING,THS ACTUATOR,MECHANICAL INPUT LEVER
0U190834
1
TOOL-ZERO POSITIONING,THS ACTUATOR
98D27407502000
1
SUPPORT STRUT-R I,THS ACTUATOR
98D27409006000
1
WRENCH GROOVE NUT
98D27409007000
1
WRENCH GROOVE NUT
98D27903500000
2
PIN-SIDE STICK LOCKING
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
312AR
 C. Referenced Information
REFERENCE
DESIGNATION
TASK 27-44-51-000-001-A
Removal of the Trimmable Horizontal Stabilizer (THS) Actuator
TASK 29-10-00-864-001-A
Depressurize the Green Hydraulic System
TASK 29-10-00-864-002-A
Depressurize the Yellow Hydraulic System
F Attach Fittings Bearings of the THS Actuator Arm
3. Job Set-up
Subtask 55-16-34-860-051-A
A. Aircraft Maintenance Configuration
   (1) Make sure that the THS pitch trim control is set at neutral position
   (2) Install the suport strut 98D27407502000 SUPPORT STRUT-R I,THS ACTUATOR to set the THS at zero position.
   (3) Depressurize the Yellow and Green hidraulic systems. (Ref. AMM TASK 29-10-00-864-001), (Ref. AMM TASK 29-10-00-864-002).
Subtask 55-16-34-865-052-A
B. Open, safety and tag this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUFLIGHT CONTROLS/ELAC1/NORM/SPLY15CE1B11
49VUFLIGHT CONTROLS/THS/ACTR/MOT219CE2B09
** ON A/C NOT FOR ALL
49VUFLIGHT CONTROLS/ELAC1/NORM/SPLY15CE1B06
49VUFLIGHT CONTROLS/THS/ACTR/MOT219CE2B04
** ON A/C ALL
105VUFLT CTL/ELAC1/STBY SPLY16CE1A01
121VUFLIGHT CONTROLS/THS ACTR/MOT319CE3Q17
121VUFLIGHT CONTROLS/THS ACTR/MOT119CE1Q16
Subtask 55-16-34-941-052-A
C. Safety Precautions
   (1) Install the 0U190360 PIN-RIGGING,THS ACTUATOR,MECHANICAL INPUT LEVER in the mechanical input of the THS actuator.
   (2) Install the 0U190834 TOOL-ZERO POSITIONING,THS ACTUATOR to set the THS actuator at zero positon.
   (3) Put the 98D27903500000 PIN-SIDE STICK LOCKING in the CAPT and F/O side stick controllers.
   (4) Put the WARNING NOTICE(S) in the flight compartment to tell the persons not to operate the flight controls.
   (5) Put WARNING NOTICE(S) in position to tell the persons not to operate the hydraulic systems.
   (6) Do an inspection of the componet interface and/or the adjacent area.
Subtask 55-16-34-010-051-A
D. Get access
   (1) Put the ACCESS PLATFORM 3M (10 FT) in position at zone 311,312.
   (2) open the access door 312AR.
4. Procedure
Subtask 55-16-34-010-052-A
A. Removal to get access
   (1) Remove the primary lower attachment of the THS actuator (Ref. AMM TASK 27-44-51-000-001).
Subtask 55-16-34-020-050-A
B. Removal of the Attach Fittings Bearings of the THS Actuator Arm
   (1) Remove the nut retainer (1) with the 98D27409007000 WRENCH GROOVE NUT.
   (2) Remove the washer retainer (2).
   (3) Push the bushes (3) and (10) to remove the bush bearing assembly.
   (4) Remove the nut retainers (6) and (7) with the 98D27409006000 WRENCH GROOVE NUT.
   (5) Remove and discard the washer retainers (4) and (8).
   (6) Remove the bearings (5) and (9).
[Rev.10 from 2021] 2026.04.01 12:51:14 UTC
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