DOC AIRBUS | AMM A320FInstallation of the Servo Control Actuator Eye-End
TASK 27-34-51-400-006-A
Installation of the Servo Control Actuator Eye-End
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 27-34-51-860-071-A
Subtask 27-34-51-420-061-A ** ON A/C NOT FOR ALL
Subtask 27-34-51-410-057-A
[Rev.10 from 2021]
2026.04.01 06:52:02 UTC
Installation of the Servo Control Actuator Eye-End
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.
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.
WARNING:
YOU MUST PUT ON AND ATTACH A SAFETY HARNESS BEFORE YOU START WORK:
- ON THE THS OR IN THE REAR FUSELAGE
- ON TOP OF THE WINGS OR PYLONS.
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
CAUTION:
DO NOT CAUSE DAMAGE TO THE SURFACES. THE COMPONENTS ARE MADE OF CARBONFIBER REINFORCED PLASTIC.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE |
| No specific | 1 | GUN - GREASE |
| No specific | 1 | WARNING NOTICE(S) |
| No specific | Torque wrench: range to between 3.5 and 3.0 m.daN (25.81 and 22.12 lbf.ft )  | |
| 98D27309001000 | 1 | NEUTRAL SETTING TOOL - ELEVATOR |
| 98D27309009003 | 1 | COLLAR-DEPTH ACTUATOR |
| 98D27309009004 | 1 | COLLAR-DEPTH ACTUATOR |
| 98D27903500000 | 2 | PIN-SIDE STICK LOCKING |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.03GBC1) | Synthetic Oil base Grease-General Purpose Lithium Thickened Low Temp. - |
| (Material No.06LCG9) | Non Hardening Jointing Putty-Medium Temp. Area - - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 334 | THS TRAILING EDGE |
| 344 | THS TRAILING EDGE |
| 334DB, 344DB |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 27-34-00-820-002-A | Adjustment of the Elevator and Hydraulic Actuation after Removal/Installation of one Servocontrol |
| TASK 27-34-51-000-009-A | Removal of the Servo Control Actuator Eye-End |
| TASK 27-34-51-400-001-A | Installation of the Elevator Servo Control |
| TASK 29-10-00-864-001-A | Depressurize the Green Hydraulic System |
| TASK 29-10-00-864-002-A | Depressurize the Yellow Hydraulic System |
| TASK 29-10-00-864-003-A | Depressurize the Blue Hydraulic System |
| TASK 29-14-00-614-001-A | Depressurization of the Hydraulic Reservoirs |
| TASK 55-13-11-000-001-A | Remove/Open of the Trimmable Horizontal Stabilizer (THS) Trailing-Edge Access-Panels |
| TASK 55-13-11-400-001-A | Install/Close of the Trimmable Horizontal Stabilizer (THS) Trailing-Edge Access-Panels |
Servo-Control Actuator Eye-EndSubtask 27-34-51-860-071-A
A. Aircraft Maintenance Configuration
(1) Make sure that the elevators and the horizontal stabilizer controls are set to the neutral position.
(2) Make sure that the 98D27903500000 PIN-SIDE STICK LOCKING are in position in the CAPT and F/O side stick controllers.
(3) Make sure that the subsequent tools are installed:
(Ref. AMM TASK 29-10-00-864-001), (Ref. AMM TASK 29-10-00-864-002) and (Ref. AMM TASK 29-10-00-864-003).
(5) Make sure that the hydraulic reservoirs are depressurized (Ref. AMM TASK 29-14-00-614-001).
(6) Make sure that the WARNING NOTICE(S) are in position in the flight compartment to tell persons not to operate the flight controls.
(7) Make sure that the WARNING NOTICE(S) are in position to tell persons not to operate the hydraulic systems.
(8) Make sure that the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE are in position at zone 334 and/or zone 344.
(9) Make sure that access panels 334DB and/or 344DB are open (Ref. AMM TASK 55-13-11-000-001).
Subtask 27-34-51-865-080-A (1) Make sure that the elevators and the horizontal stabilizer controls are set to the neutral position.
(2) Make sure that the 98D27903500000 PIN-SIDE STICK LOCKING are in position in the CAPT and F/O side stick controllers.
(3) Make sure that the subsequent tools are installed:
- The 98D27309001000 NEUTRAL SETTING TOOL - ELEVATOR on the elevators, if the two servo-control actuators are removed
- The 98D27309009003 COLLAR-DEPTH ACTUATOR or the 98D27309009004 COLLAR-DEPTH ACTUATOR on the elevator servo-control actuator that is not removed.
(Ref. AMM TASK 29-10-00-864-001), (Ref. AMM TASK 29-10-00-864-002) and (Ref. AMM TASK 29-10-00-864-003).
(5) Make sure that the hydraulic reservoirs are depressurized (Ref. AMM TASK 29-14-00-614-001).
(6) Make sure that the WARNING NOTICE(S) are in position in the flight compartment to tell persons not to operate the flight controls.
(7) Make sure that the WARNING NOTICE(S) are in position to tell persons not to operate the hydraulic systems.
(8) Make sure that the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE are in position at zone 334 and/or zone 344.
(9) Make sure that access panels 334DB and/or 344DB are open (Ref. AMM TASK 55-13-11-000-001).
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
Subtask 27-34-51-140-056-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/ELAC1/NORM/SPLY | 15CE1 | B11 |
| 49VU | FLIGHT CONTROLS/FCDC1/SPLY | 20CE1 | B10 |
| 49VU | FLIGHT CONTROLS/THS/ACTR/MOT2 | 19CE2 | B09 |
| 49VU | FLIGHT CONTROLS/SEC1/NORM/SPLY | 21CE1 | B08 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/ELAC1/NORM/SPLY | 15CE1 | B06 |
| 49VU | FLIGHT CONTROLS/FCDC1/SPLY | 20CE1 | B05 |
| 49VU | FLIGHT CONTROLS/THS/ACTR/MOT2 | 19CE2 | B04 |
| 49VU | FLIGHT CONTROLS/SEC1/NORM/SPLY | 21CE1 | B03 |
| ** ON A/C ALL | |||
| 105VU | FLIGHT CONTROLS/ELAC2/STBY SPLY | 16CE2 | A02 |
| 105VU | FLT CTL/ELAC1/STBY SPLY | 16CE1 | A01 |
| 105VU | FLT CTL/SEC1/STBY SPLY | 22CE | B01 |
| 121VU | FLIGHT CONTROLS/FCDC2/SPLY | 20CE2 | Q20 |
| 121VU | FLIGHT CONTROLS/SEC2/SPLY | 21CE2 | Q18 |
| 121VU | FLIGHT CONTROLS/THS ACTR/MOT3 | 19CE3 | Q17 |
| 121VU | FLIGHT CONTROLS/THS ACTR/MOT1 | 19CE1 | Q16 |
| 121VU | FLIGHT CONTROLS/ELAC2/NORM/SPLY | 15CE2 | R20 |
C. Cleaning
(1) Clean the component interfaces and the adjacent area.
(2) Make sure that the parts retained from the removed component are clean and in the correct condition.
4. Procedure(1) Clean the component interfaces and the adjacent area.
(2) Make sure that the parts retained from the removed component are clean and in the correct condition.
Subtask 27-34-51-420-061-A ** ON A/C NOT FOR ALL
A. Installation of the Servo-Control Actuator Eye-End
(1) Apply Non Hardening Jointing Putty-Medium Temp. Area - - (Material No.06LCG9) to the two threads of the eye-end (6).
(2) Install the nut (7) on the limit of the inner thread of the eye-end (6).
(3) Install the lock washer (8) and key washer (9) on the inner thread of the eye-end (6).
(4) If the eye-end (6) of the elevator servo control does not have grease nipples, make sure that you are in one of the next conditions:
(a) Attach a GUN - GREASE to each grease nipple of the eye-end (6).
(b) Lubricate the roller bearings on the eye-end (6) of the elevator servo control with Synthetic Oil base Grease-General Purpose Lithium Thickened Low Temp. - (Material No.03GBC1) until the new grease comes out.
(c) Remove the unwanted grease from the bearings.
(6) Install the eye-end (6) on the servo control actuator (10) with the same number of turns recorded on the removal task.
(b) If you must replace the two servo controls, make sure that you replace them one after the other (not at the same time).
(7) Engage the key washer (9) in the servo-control fitting. Make sure that the key washer (9) is fully engaged on the servo-control fitting.
(8) Engage the lock washer (8) in the key washer (9). Make sure that the face serrations of the lock washer (8) and the key washer (9) are fully engaged.
(9) TORQUE the nut (7) to between 3.5 and 3.0 m.daN (25.81 and 22.12 lbf.ft ).
(a) Do not safety the nut (7) and key washer (9) with lockwire at this time. Do this only when you make sure that the elevator is correctly adjusted (Ref. AMM TASK 27-34-00-820-002).
(10) If it is not possible to correctly engage the parts (7), (8), (9) and (10), it is recommended to do the next steps:
(a) Remove the eye-end (6) (Ref. AMM TASK 27-34-51-000-009).
(b) Do an inspection of the threads of eye-end (6) for signs of wear, marks and scratches.
(c) Do an inspection of the lock washer (8) and key washer (9) for signs of wear on the face serrations.
(d) If an item is not in the correct condition, refer toCMM 273452 for the repair of all the unit.
(e) If all items are in the correct condition, install the eye-end (6) on the servo control actuator (10).
(11) Install the servo control actuator (10) (Ref. AMM TASK 27-34-51-400-001).
Subtask 27-34-51-420-061-B ** ON A/C NOT FOR ALL (1) Apply Non Hardening Jointing Putty-Medium Temp. Area - - (Material No.06LCG9) to the two threads of the eye-end (6).
(2) Install the nut (7) on the limit of the inner thread of the eye-end (6).
(3) Install the lock washer (8) and key washer (9) on the inner thread of the eye-end (6).
(4) If the eye-end (6) of the elevator servo control does not have grease nipples, make sure that you are in one of the next conditions:
- The servo-control actuator eye-end is new.
- The servo-control actuator eye-end has 0 flight cycles since the last inspection.
- You know the number of flight cycles since the last servo-control actuator eye-end inspection (refer to SB 27A1186 for the related indications).
(a) Attach a GUN - GREASE to each grease nipple of the eye-end (6).
(b) Lubricate the roller bearings on the eye-end (6) of the elevator servo control with Synthetic Oil base Grease-General Purpose Lithium Thickened Low Temp. - (Material No.03GBC1) until the new grease comes out.
(c) Remove the unwanted grease from the bearings.
(6) Install the eye-end (6) on the servo control actuator (10) with the same number of turns recorded on the removal task.
NOTE: The pre-adjustment range between the centers of the two eye-ends of the servo control actuator must be from 410 mm (16.1417 in.) to 416 mm (16.3780 in.) with the elevator set to the neutral position.
(a) If you replace one servo control, make sure that you refer to the other servo control for the installation procedure. (b) If you must replace the two servo controls, make sure that you replace them one after the other (not at the same time).
(7) Engage the key washer (9) in the servo-control fitting. Make sure that the key washer (9) is fully engaged on the servo-control fitting.
(8) Engage the lock washer (8) in the key washer (9). Make sure that the face serrations of the lock washer (8) and the key washer (9) are fully engaged.
(9) TORQUE the nut (7) to between 3.5 and 3.0 m.daN (25.81 and 22.12 lbf.ft )
. (a) Do not safety the nut (7) and key washer (9) with lockwire at this time. Do this only when you make sure that the elevator is correctly adjusted (Ref. AMM TASK 27-34-00-820-002).
(10) If it is not possible to correctly engage the parts (7), (8), (9) and (10), it is recommended to do the next steps:
(a) Remove the eye-end (6) (Ref. AMM TASK 27-34-51-000-009).
(b) Do an inspection of the threads of eye-end (6) for signs of wear, marks and scratches.
(c) Do an inspection of the lock washer (8) and key washer (9) for signs of wear on the face serrations.
(d) If an item is not in the correct condition, refer to
(e) If all items are in the correct condition, install the eye-end (6) on the servo control actuator (10).
(11) Install the servo control actuator (10) (Ref. AMM TASK 27-34-51-400-001).
A. Installation of the Servo Control Actuator Eye-End
(1) Apply Non Hardening Jointing Putty-Medium Temp. Area - - (Material No.06LCG9) to the two threads of eye-end (6).
(2) Install the nut (7) to the limit of the inner thread of eye-end (6).
(3) Install the lock washer (8) and key washer (9) to the inner thread of eye-end (6).
(4) If the eye-end (6) of the elevator servo control has a grease nipple(s) (regreasable roller bearing):
(a) Attach a GUN - GREASE to each grease nipple of the eye-end (6).
(b) Lubricate the roller bearings on eye-end (6) of the elevator servo control with Synthetic Oil base Grease-General Purpose Lithium Thickened Low Temp. - (Material No.03GBC1) until the new grease comes out.
(c) Remove the unwanted grease from the bearings.
(5) Install the eye-end (6) to servo control actuator (10) to the same number of turns recorded on the removal task.
(7) Engage the lock washer (8) in key washer (9). Make sure that the face serrations of lock washer (8) and key washer (9) are fully engaged.
(8) TORQUE the nut (7) to between 3.5 and 3.0 m.daN (25.81 and 22.12 lbf.ft ).
(a) Remove the eye-end (6) (Ref. AMM TASK 27-34-51-000-009).
(b) Do an inspection of the threads of eye-end (6) for indications of wear, marks and scratches.
(c) Do an inspection of lock washer (8) and key washer (9) for indications of wear on the face serrations.
(d) If any item is not correct, refer toCMM 273452 for the repair of the complete unit.
(e) If all items are correct, install eye-end (6) to servo control actuator (10).
(10) Install the servo control actuator (10) (Ref. AMM TASK 27-34-51-400-001).
Subtask 27-34-51-081-054-A (1) Apply Non Hardening Jointing Putty-Medium Temp. Area - - (Material No.06LCG9) to the two threads of eye-end (6).
(2) Install the nut (7) to the limit of the inner thread of eye-end (6).
(3) Install the lock washer (8) and key washer (9) to the inner thread of eye-end (6).
(4) If the eye-end (6) of the elevator servo control has a grease nipple(s) (regreasable roller bearing):
(a) Attach a GUN - GREASE to each grease nipple of the eye-end (6).
(b) Lubricate the roller bearings on eye-end (6) of the elevator servo control with Synthetic Oil base Grease-General Purpose Lithium Thickened Low Temp. - (Material No.03GBC1) until the new grease comes out.
(c) Remove the unwanted grease from the bearings.
(5) Install the eye-end (6) to servo control actuator (10) to the same number of turns recorded on the removal task.
NOTE: The pre-adjustment range between the centers of the servo control actuator two eye-ends must be from 410 mm (16.1417 in.) to 416 mm (16.3780 in.) with the elevator set to neutral position.
NOTE: When you replace one servo control, make sure that you refer to the other servo control for the installation procedure. If it is necessary to replace the two servo controls, make sure that you replace them one after the other (not at the same time).
(6) Engage the key washer (9) in the servo-control fitting. Make sure that key washer (9) is fully engaged on the servo-control fitting. (7) Engage the lock washer (8) in key washer (9). Make sure that the face serrations of lock washer (8) and key washer (9) are fully engaged.
(8) TORQUE the nut (7) to between 3.5 and 3.0 m.daN (25.81 and 22.12 lbf.ft )
. NOTE: Do not safety the nut (7) and key washer (9) with lockwire. This is requested when correct adjustment of the elevator is confirmed (Ref. AMM TASK 27-34-00-820-002).
(9) If is not possible to do correctly the engage of parts (7), (8), (9) and (10), it is recommended to do the following: (a) Remove the eye-end (6) (Ref. AMM TASK 27-34-51-000-009).
(b) Do an inspection of the threads of eye-end (6) for indications of wear, marks and scratches.
(c) Do an inspection of lock washer (8) and key washer (9) for indications of wear on the face serrations.
(d) If any item is not correct, refer to
(e) If all items are correct, install eye-end (6) to servo control actuator (10).
(10) Install the servo control actuator (10) (Ref. AMM TASK 27-34-51-400-001).
B. Remove Locking Devices
(1) Remove the 98D27903500000 PIN-SIDE STICK LOCKING from the CAPT and the F/O side stick controllers.
(2) Hold the elevator by hand and remove the 98D27309001000 NEUTRAL SETTING TOOL - ELEVATOR from the elevators or the 98D27309009003 COLLAR-DEPTH ACTUATOR or the 98D27309009004 COLLAR-DEPTH ACTUATOR from the elevator servo-control actuator.
Subtask 27-34-51-865-075-A (1) Remove the 98D27903500000 PIN-SIDE STICK LOCKING from the CAPT and the F/O side stick controllers.
(2) Hold the elevator by hand and remove the 98D27309001000 NEUTRAL SETTING TOOL - ELEVATOR from the elevators or the 98D27309009003 COLLAR-DEPTH ACTUATOR or the 98D27309009004 COLLAR-DEPTH ACTUATOR from the elevator servo-control actuator.
C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 27-34-51-820-050-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/ELAC1/NORM/SPLY | 15CE1 | B11 |
| 49VU | FLIGHT CONTROLS/FCDC1/SPLY | 20CE1 | B10 |
| 49VU | FLIGHT CONTROLS/THS/ACTR/MOT2 | 19CE2 | B09 |
| 49VU | FLIGHT CONTROLS/SEC1/NORM/SPLY | 21CE1 | B08 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/ELAC1/NORM/SPLY | 15CE1 | B06 |
| 49VU | FLIGHT CONTROLS/FCDC1/SPLY | 20CE1 | B05 |
| 49VU | FLIGHT CONTROLS/THS/ACTR/MOT2 | 19CE2 | B04 |
| 49VU | FLIGHT CONTROLS/SEC1/NORM/SPLY | 21CE1 | B03 |
| ** ON A/C ALL | |||
| 105VU | FLIGHT CONTROLS/ELAC2/STBY SPLY | 16CE2 | A02 |
| 105VU | FLT CTL/ELAC1/STBY SPLY | 16CE1 | A01 |
| 105VU | FLT CTL/SEC1/STBY SPLY | 22CE | B01 |
| 121VU | FLIGHT CONTROLS/FCDC2/SPLY | 20CE2 | Q20 |
| 121VU | FLIGHT CONTROLS/SEC2/SPLY | 21CE2 | Q18 |
| 121VU | FLIGHT CONTROLS/THS ACTR/MOT3 | 19CE3 | Q17 |
| 121VU | FLIGHT CONTROLS/THS ACTR/MOT1 | 19CE1 | Q16 |
| 121VU | FLIGHT CONTROLS/ELAC2/NORM/SPLY | 15CE2 | R20 |
D. Adjustment Test
5. Close-upCAUTION:
MAKE SURE THAT YOU REMOVE THE "COLLAR-ELEVATOR SERVO CONTROL SAFETY" BEFORE YOU PRESSURIZE THE ELEVATOR SERVO CONTROL. IF YOU DO NOT REMOVE THE COLLAR, YOU CAN CAUSE DAMAGE TO THE ELEVATOR SERVO CONTROL.
(1) Do an adjustment test of the elevators after the removal/installation of the servo control actuator eye-end (Ref. AMM TASK 27-34-00-820-002). Subtask 27-34-51-410-057-A
A. Visual Inspection
(1) Make sure that the work area is clean and clear of tools and other items.
Subtask 27-34-51-410-058-A (1) Make sure that the work area is clean and clear of tools and other items.
B. Close Access
(1) Close trailing-edge access panels 334DB and/or 344DB (Ref. AMM TASK 55-13-11-400-001).
Subtask 27-34-51-942-057-A (1) Close trailing-edge access panels 334DB and/or 344DB (Ref. AMM TASK 55-13-11-400-001).
C. Removal of the Ground Equipment
(1) Remove the WARNING NOTICE(S).
(2) Remove the access platform(s).
(1) Remove the WARNING NOTICE(S).
(2) Remove the access platform(s).