DOC AIRBUS | AMM A320FInstallation of the Elevator Servo Control
TASK 27-34-51-400-001-A
Installation of the Elevator Servo Control
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Expendable Parts
E. Referenced Information
3. Job Set-up
Subtask 27-34-51-860-063-A
Subtask 27-34-51-420-064-D
Subtask 27-34-51-210-052-A
[Rev.10 from 2021]
2026.04.01 04:05:16 UTC
Installation of the Elevator Servo Control
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.
NOTE: Only the installation of servo control unit 34CE1 is given. The installation of servo control units 34CE2, 34CE3 and 34CE4 is the same. For the correct location of the servo control units, compare the identification placards.
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 5M (16 FT)- ADJUSTABLE |
| No specific | 1 | GUN - GREASE |
| No specific | AR | WARNING NOTICE(S) |
| No specific | Torque wrench: range to between 17 and 15 m.N (12.54 and 11.06 lbf.ft )  | |
| No specific | Torque wrench: range to between 20 and 18 m.N (14.75 and 13.27 lbf.ft ) | |
| No specific | Torque wrench: range to between 5.0 and 4.5 m.daN (36.87 and 33.19 lbf.ft ) | |
| 98D27309001000 | 1 | NEUTRAL SETTING TOOL - ELEVATOR |
| 98D27309003000 | 1 | DEVICE - LOCKING, 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.03HBD9) | Synthetic Ester base Grease-General Purpose Low Temp - |
| (Material No.06LCG9) | Non Hardening Jointing Putty-Medium Temp. Area - - |
| (Material No.12AGC2) | Corrosion Preventive Compound-- Soft Film System |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 334 | THS TRAILING EDGE |
| 335 | ELEVATOR |
| 344 | THS TRAILING EDGE |
| 345 | ELEVATOR |
| 334DB, 344DB |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 25 | COTTER PIN | AIPC 27-34-07-11-020 |
| 20 | COTTER PIN | AIPC 27-34-07-11-030 |
| 38 | COTTER PIN | AIPC 27-34-07-12-070 |
| 25 | COTTER PIN | AIPC 27-34-87-11-020 |
| 20 | COTTER PIN | AIPC 27-34-87-11-030 |
| 38 | COTTER PIN | AIPC 27-34-87-12-070 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 20-23-22-910-001-A | Marking of the Unions after Application of Standard or Specific Tightening Torque |
| TASK 20-28-00-912-802-A | Electrical Bonding - General Maintenance Procedure |
| TASK 24-41-00-861-002-A | Energize the Aircraft Electrical Circuits from the External Power |
| TASK 24-41-00-861-002-A-01 | Energize the Aircraft Electrical Circuits from the APU |
| TASK 24-41-00-861-002-A-02 | Energize the Aircraft Electrical Circuits from Engine 1(2) |
| TASK 24-41-00-862-002-A | De-energize the Aircraft Electrical Circuits Supplied from the External Power |
| TASK 24-41-00-862-002-A-01 | De-energize the Aircraft Electrical Circuits Supplied from the APU |
| TASK 24-41-00-862-002-A-02 | De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2) |
| TASK 27-34-00-820-001-A | Adjustment of the Elevator and Hydraulic Actuation (with the reference triangle on the tail cone) |
| TASK 27-34-00-820-002-A | Adjustment of the Elevator and Hydraulic Actuation after Removal/Installation of one Servocontrol |
| TASK 27-34-00-820-003-B | Adjustment of the Elevator and Hydraulic Actuation to 0.5 Degrees Nose-Up with the Gauge-Elevator Neutral Setting (98D27309006000) |
| TASK 27-34-00-820-003-B-01 | Adjustment of the Elevator and Hydraulic Actuation to 0.5 Degrees Nose-Up with the Gauge-Elevator Neutral Setting (98D27309002000) |
| 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 |
Elevator Servo-Control UnitSubtask 27-34-51-860-063-A
A. Aircraft Maintenance Configuration
(1) Make sure that the hydraulic systems are depressurized
(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).
(2) Make sure that the hydraulic reservoirs are depressurized (Ref. AMM TASK 29-14-00-614-001).
(3) Make sure that the 98D27903500000 PIN-SIDE STICK LOCKING(S) are installed on the CAPT and the F/O side sticks.
(4) Make sure that the 98D27309001000 NEUTRAL SETTING TOOL - ELEVATOR is installed on the elevators, if the two servo controls actuators are removed.
(5) Make sure that the 98D27309009003 COLLAR-DEPTH ACTUATOR or the 98D27309009004 COLLAR-DEPTH ACTUATOR on the elevator servo control actuator is not removed.
(6) Make sure that WARNING NOTICE(S) is(are) on the pitch control wheels to tell persons not move the THS.
(7) Make sure that WARNING NOTICE(S) is(are) in the flight compartment to tell persons not to operate the flight controls.
(8) Make sure that WARNING NOTICE(S) is(are) in position to tell persons not to operate the hydraulic systems.
(9) Make sure that the ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE is in position below the applicable zone.
(10) Make sure that trailing-edge access panels 334DB ( 344DB) are open (Ref. AMM TASK 55-13-11-000-001).
(11) If the two elevator servo controls are removed, make sure that the 98D27309003000 DEVICE - LOCKING, ELEVATOR is installed.
Subtask 27-34-51-865-076-A (1) Make sure that the hydraulic systems are depressurized
(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).
(2) Make sure that the hydraulic reservoirs are depressurized (Ref. AMM TASK 29-14-00-614-001).
(3) Make sure that the 98D27903500000 PIN-SIDE STICK LOCKING(S) are installed on the CAPT and the F/O side sticks.
(4) Make sure that the 98D27309001000 NEUTRAL SETTING TOOL - ELEVATOR is installed on the elevators, if the two servo controls actuators are removed.
(5) Make sure that the 98D27309009003 COLLAR-DEPTH ACTUATOR or the 98D27309009004 COLLAR-DEPTH ACTUATOR on the elevator servo control actuator is not removed.
(6) Make sure that WARNING NOTICE(S) is(are) on the pitch control wheels to tell persons not move the THS.
(7) Make sure that WARNING NOTICE(S) is(are) in the flight compartment to tell persons not to operate the flight controls.
(8) Make sure that WARNING NOTICE(S) is(are) in position to tell persons not to operate the hydraulic systems.
(9) Make sure that the ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE is in position below the applicable zone.
(10) Make sure that trailing-edge access panels 334DB ( 344DB) are open (Ref. AMM TASK 55-13-11-000-001).
(11) If the two elevator servo controls are removed, make sure that the 98D27309003000 DEVICE - LOCKING, ELEVATOR is installed.
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
Subtask 27-34-51-140-050-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/SEC3/SPLY | 21CE3 | Q19 |
| 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.
Subtask 27-34-51-210-051-A (1) Clean the component interfaces and the adjacent area.
D. Visual Inspection
(1) Do an inspection of the component interfaces and the adjacent area.
(2) Make sure that the hydraulic line end-fittings are serviceable.
4. Procedure(1) Do an inspection of the component interfaces and the adjacent area.
(2) Make sure that the hydraulic line end-fittings are serviceable.
Subtask 27-34-51-420-064-D
A. Installation of the Servo Control Unit to the THS Attachment
(1) Apply Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) to the outer surface of the shouldered bushes (26) and (27) and install them. Make sure that you do not cause damage to them during installation.
(3) Put the servo control unit (4) in position and support it.
(4) Install the bolt (28) with the washer (29).
(5) Apply Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) to the thread of the bolt (28).
(6) Install the washer (41) and the nut (30).
(7) TORQUE the nut (30) to between 5.0 and 4.5 m.daN (36.87 and 33.19 lbf.ft ).
(8) Install the locking cap (31) and the new AIPC 27-34-07-12-070 COTTER PIN (38) or AIPC 27-34-87-12-070 COTTER PIN (38).
(9) Install the plate (37) with the washers (32), (36), nuts (33) and bolts (35).
(10) Apply Corrosion Preventive Compound-- Soft Film System (Material No.12AGC2) to all the remaining unprotected steel attachment parts of the elevator servo control.
Subtask 27-34-51-420-065-C ** ON A/C NOT FOR ALL (1) Apply Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) to the outer surface of the shouldered bushes (26) and (27) and install them. Make sure that you do not cause damage to them during installation.
NOTE: A light interference is necessary to install the shouldered bushes (26) and (27).
(2) Apply Non Hardening Jointing Putty-Medium Temp. Area - - (Material No.06LCG9) to the head and shank of the bolt (28). (3) Put the servo control unit (4) in position and support it.
(4) Install the bolt (28) with the washer (29).
(5) Apply Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) to the thread of the bolt (28).
(6) Install the washer (41) and the nut (30).
(7) TORQUE the nut (30) to between 5.0 and 4.5 m.daN (36.87 and 33.19 lbf.ft )
. (8) Install the locking cap (31) and the new AIPC 27-34-07-12-070 COTTER PIN (38) or AIPC 27-34-87-12-070 COTTER PIN (38).
(9) Install the plate (37) with the washers (32), (36), nuts (33) and bolts (35).
(10) Apply Corrosion Preventive Compound-- Soft Film System (Material No.12AGC2) to all the remaining unprotected steel attachment parts of the elevator servo control.
NOTE: It is not permitted to get Corrosion Preventive Compound-- Soft Film System (Material No.12AGC2) on the servo control spherical bearing.
B. Installation of the Servo Control Unit to the Elevator Attachment.
(3) Put the servo control unit (4) in position and support it.
(4) Install the bolt (17):
(a) Make sure that the bush (16) is installed correctly before the installation of the bolt (17).
(6) Install the washer (24) and the nut (22).
.
(8) Install the locking cap (21), the new AIPC 27-34-07-11-030 COTTER PIN (20) and the new AIPC 27-34-07-11-020 COTTER PIN (25).
(9) Apply Corrosion Preventive Compound-- Soft Film System (Material No.12AGC2) to all the remaining unprotected steel attachment parts of the elevator servo control.
Subtask 27-34-51-420-065-D ** ON A/C NOT FOR ALL NOTE: If the servo control actuator eye-end is not equipped with grease nipple, then the servo control unit can be installed only in one of the cases:
(1) Apply Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) to the outer surface of the bush (16) and install it. Make sure that you do not cause damage to it during installation. - if the servo control actuator eye-end is new
- if the servo control actuator eye-end has 0 flight cycles since the last inspection
- if the number of flight cycles is known since the last servo control actuator eye-end inspection, refer to SB 27A1186.
NOTE: A light interference is necessary to install the bush (16).
(2) Apply Non Hardening Jointing Putty-Medium Temp. Area - - (Material No.06LCG9) to the head and shank of the bolt (17). (3) Put the servo control unit (4) in position and support it.
(4) Install the bolt (17):
(a) Make sure that the bush (16) is installed correctly before the installation of the bolt (17).
NOTE: It is necessary to align the bolt head with the anti-rotation lug at the cotter pin hole.
(5) Apply Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) to the thread of the bolt (17). (6) Install the washer (24) and the nut (22).
NOTE: The counterbored surface of the washer must be on the hinge.
(7) TORQUE the nut (22) to between 5.0 and 4.5 m.daN (36.87 and 33.19 lbf.ft ) . (8) Install the locking cap (21), the new AIPC 27-34-07-11-030 COTTER PIN (20) and the new AIPC 27-34-07-11-020 COTTER PIN (25).
(9) Apply Corrosion Preventive Compound-- Soft Film System (Material No.12AGC2) to all the remaining unprotected steel attachment parts of the elevator servo control.
NOTE: It is not permitted to get Corrosion Preventive Compound-- Soft Film System (Material No.12AGC2) on the servo control spherical bearing .
B. Installation of the Servo Control Unit to the Elevator Attachment.
(1) Apply Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) to the outer surface of the bush (16) and install it. Make sure that you do not cause damage to it during installation.
(3) If the eye-end 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 of the servo control.
(b) Lubricate the roller bearings on the eye-end 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.
(4) Put the servo control unit (4) in position and support it.
(5) Install the bolt (17).
(7) Install the washer (24) and the nut (22).
.
(9) Install the locking cap (21), the new AIPC 27-34-07-11-030 COTTER PIN (20) or AIPC 27-34-87-11-030 COTTER PIN (20) and the AIPC 27-34-07-11-020 COTTER PIN (25) or AIPC 27-34-87-11-020 COTTER PIN (25).
(10) Apply Corrosion Preventive Compound-- Soft Film System (Material No.12AGC2) to all the remaining unprotected steel attachment parts of the elevator servo-control.
Subtask 27-34-51-420-063-A (1) Apply Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) to the outer surface of the bush (16) and install it. Make sure that you do not cause damage to it during installation.
NOTE: A light interference is necessary to install the bush (16).
(2) Apply Non Hardening Jointing Putty-Medium Temp. Area - - (Material No.06LCG9) to the head and shank of the bolt (17). (3) If the eye-end 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 of the servo control.
(b) Lubricate the roller bearings on the eye-end 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.
(4) Put the servo control unit (4) in position and support it.
(5) Install the bolt (17).
NOTE: Make sure that the bush (16) is installed correctly before the installation of the bolt (17).
NOTE: It is necessary to align the bolt head with the anti-rotation lug at the cotter pin hole.
(6) Apply Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) to the thread of the bolt (17). (7) Install the washer (24) and the nut (22).
NOTE: The counterbored surface of the washer must be on the hinge.
(8) TORQUE the nut (22) to between 5.0 and 4.5 m.daN (36.87 and 33.19 lbf.ft ) . (9) Install the locking cap (21), the new AIPC 27-34-07-11-030 COTTER PIN (20) or AIPC 27-34-87-11-030 COTTER PIN (20) and the AIPC 27-34-07-11-020 COTTER PIN (25) or AIPC 27-34-87-11-020 COTTER PIN (25).
(10) Apply Corrosion Preventive Compound-- Soft Film System (Material No.12AGC2) to all the remaining unprotected steel attachment parts of the elevator servo-control.
NOTE: It is not permitted to get Corrosion Preventive Compound-- Soft Film System (Material No.12AGC2) on the servo control spherical bearing.
C. Hydraulic and Electrical Connections of the Servo Control Unit to the Horizontal Stabilizer
(1) Connect the hydraulic connections:
(b) TORQUE the flexible hose (5) to between 20 and 18 m.N (14.75 and 13.27 lbf.ft ) on the servo control unit (4).
1 Make sure that you do not twist the flexible hose (5) when you tighten the union nuts.
(c) Identify the tightened union nuts with a red line
(Ref. AMM TASK 20-23-22-910-001).
(d) TORQUE the flexible hose (6) to between 17 and 15 m.N (12.54 and 11.06 lbf.ft ) on the servo control unit (4).
1 Make sure that you do not twist the flexible hose (6) when you tighten the union nuts.
(e) Identify the tightened union nuts with a red line
(Ref. AMM TASK 20-23-22-910-001).
(f) Make sure that the flexible hoses (5) and (6) do not rub the adjacent components.
(g) Install the bonding lead (7) with the bolt (11), washer (9) and nut (8) (Ref. AMM TASK 20-28-00-912-802).
(2) Connect the electrical connections:
(a) Remove the blanking caps.
(b) Connect the electrical connectors:
Subtask 27-34-51-710-050-B (1) Connect the hydraulic connections:
WARNING:
DO NOT GET HYDRAULIC FLUID ON YOUR SKIN, IN YOUR EYES OR IN YOUR MOUTH. HYDRAULIC FLUID IS POISONOUS AND CAN GO THROUGH YOUR SKIN AND INTO YOUR BODY. FLUSH HYDRAULIC FLUID FROM YOUR EYES, MOUTH OR SKIN WITH WATER. GET MEDICAL AID IF YOU GET HYDRAULIC FLUID IN YOUR EYES OR MOUTH.
(a) Remove the blanking caps from the flexible hoses (5) and (6) and the unions of the servo control unit (4). (b) TORQUE the flexible hose (5) to between 20 and 18 m.N (14.75 and 13.27 lbf.ft )
on the servo control unit (4). 1 Make sure that you do not twist the flexible hose (5) when you tighten the union nuts.
(c) Identify the tightened union nuts with a red line
(Ref. AMM TASK 20-23-22-910-001).
(d) TORQUE the flexible hose (6) to between 17 and 15 m.N (12.54 and 11.06 lbf.ft )
on the servo control unit (4). 1 Make sure that you do not twist the flexible hose (6) when you tighten the union nuts.
(e) Identify the tightened union nuts with a red line
(Ref. AMM TASK 20-23-22-910-001).
(f) Make sure that the flexible hoses (5) and (6) do not rub the adjacent components.
(g) Install the bonding lead (7) with the bolt (11), washer (9) and nut (8) (Ref. AMM TASK 20-28-00-912-802).
(2) Connect the electrical connections:
(a) Remove the blanking caps.
(b) Connect the electrical connectors:
| Servo Control Unit | Electrical Connector | ITEM | ZONE |
|---|---|---|---|
| 34CE1 | 34CE1-A 34CE1-B 34CE1-C | 3 1 2 | 335 |
| 34CE2 | 34CE2-A 34CE2-B 34CE2-C | 3 1 2 | 345 |
| 34CE3 | 34CE3-A 34CE3-B 34CE3-C | 3 1 2 | 335 |
| 34CE4 | 34CE4-A 34CE4-B 34CE4-C | 3 1 2 | 345 |
D. Test
(2) Hold the elevator with your hand. Then 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.
Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(3) Do the adjustment test of the elevators after the removal/installation of one servo control unit (Ref. AMM TASK 27-34-00-820-003) or (Ref. AMM TASK 27-34-00-820-002) or (Ref. AMM TASK 27-34-00-820-001).
(4) If the two servo controls on the same elevator must be adjusted:
(a) Do the adjustment of the elevator and hydraulic actuation with the gauge-elevator neutral setting (Ref. AMM TASK 27-34-00-820-003).
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) Remove the 98D27903500000 PIN-SIDE STICK LOCKING from the CAPT and the F/O side sticks. (2) Hold the elevator with your hand. Then 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.
Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(3) Do the adjustment test of the elevators after the removal/installation of one servo control unit (Ref. AMM TASK 27-34-00-820-003) or (Ref. AMM TASK 27-34-00-820-002) or (Ref. AMM TASK 27-34-00-820-001).
(4) If the two servo controls on the same elevator must be adjusted:
(a) Do the adjustment of the elevator and hydraulic actuation with the gauge-elevator neutral setting (Ref. AMM TASK 27-34-00-820-003).
Subtask 27-34-51-210-052-A
A. Visual Inspection
(1) Make sure that the work area is clean and clear of tools and other items.
Subtask 27-34-51-410-051-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 ( 344DB) (Ref. AMM TASK 55-13-11-400-001).
(2) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
Subtask 27-34-51-942-050-A (1) Close trailing-edge access panels 334DB ( 344DB) (Ref. AMM TASK 55-13-11-400-001).
(2) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
C. Removal of the Ground Equipment
(1) Remove the WARNING NOTICE(S).
(2) Remove the access platform(s).
Subtask 27-34-51-865-051-A (1) Remove the WARNING NOTICE(S).
(2) Remove the access platform(s).
D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 27-34-51-081-050-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/SEC3/SPLY | 21CE3 | Q19 |
| 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 |
E. Removal of the Safety Device
(1) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(1) Remove the ground support and maintenance equipment, the special and standard tools and all other items.