Adjustment of the Elevator and Hydraulic Actuation (with the reference triangle on the tail cone)

TASK 27-34-00-820-001-A
Adjustment of the Elevator and Hydraulic Actuation (with the reference triangle on the tail cone)

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 TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.

ZONE: 312
ZONE: 334
ZONE: 344

1. Reason for the Job

NOTE: This task can contribute to fuel savings.

NOTE: You can do this task together with AMM task 27-34-00-200-001 to prevent elevator vibration.

2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific	1	ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE
No specific	1	ACCESS PLATFORM 6M (20 FT) - ADJUSTABLE
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 3.5 and 3 m.daN (25.81 and 22.12 lbf.ft )
0U190360	1	PIN-RIGGING,THS ACTUATOR,MECHANICAL INPUT LEVER
98D27303000001	1	LOAD,APPLICATION TOOL-ELEVATOR, AILERON, RUDDER
98D27903500000	2	PIN-SIDE STICK LOCKING

B. Consumable Materials

REFERENCE	DESIGNATION
No specific	Lockwire-corrosion resistant steel dia 0.8 mm (0.03 in.)

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
312	AFT FUSLG TAIL SECTION
334	THS TRAILING EDGE
344	THS TRAILING EDGE
312AR, 334DB, 344DB, 822

D. Referenced Information

REFERENCE	DESIGNATION
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 27-34-00-200-002-A	Check of the Elevator Servo Control Oscillations.
TASK 27-34-00-220-003-A	Check of the Position of the Reference Triangle on the Tail Cone
TASK 27-34-00-710-001-A	Operational Test of the Elevator and Hydraulic Actuation
TASK 29-10-00-863-003-A	Pressurize the Blue Hydraulic System with a Hydraulic Ground Power-Cart
TASK 29-10-00-863-003-A-01	Pressurize the Blue Hydraulic System with the Blue Electric Pump
TASK 29-10-00-864-003-A	Depressurize the Blue Hydraulic System
TASK 29-23-00-863-001-A	Pressurize the Green Hydraulic System from the Yellow Hydraulic System through the PTU with the Electric Pump
TASK 29-23-00-864-001-A	Depressurize the Green and Yellow Hydraulic Systems after Operation of the PTU
TASK 29-24-00-863-001-A	Pressurize the Yellow Hydraulic System with the Electric Pump
TASK 29-24-00-864-001-A	Depressurize the Yellow Hydraulic System
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
Pointer and Triangle Reference Positioning
Adjustment of the Elevator Servocontrol
Elevator Position Transducer Unit

3. Job Set-up
Subtask 27-34-00-861-051-B

A. Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).

Subtask 27-34-00-010-051-B

B. Get Access
(1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position in the zone 312.
(2) Open the access door 312AR.
(3) Put the ACCESS PLATFORM 6M (20 FT) - ADJUSTABLE in position in these zones :
(a) 334 for the left elevator.
(b) 344 for the right elevator.
(4) Open the THS trailing edge access panels (Ref. AMM TASK 55-13-11-000-001):
(a) 334DB for the left elevator.
(b) 344DB for the right elevator.
(5) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position at the access door 822.
(6) Open the access door 822.
(7) On the battery power center 105VU:

loosen the two screws and remove the protective cover

Subtask 27-34-00-865-051-A

C. Make sure that this(these) circuit breaker(s) is(are) closed:

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/SEC1/NORM/SPLY	21CE1	B08
** ON A/C ALL
49VU	L/G/LGCIU/SYS1/NORM	1GA	C09
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/ELAC1/NORM/SPLY	15CE1	B06
49VU	FLIGHT CONTROLS/FCDC1/SPLY	20CE1	B05
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	HYDRAULIC/LGCIU/SYS2	2GA	Q35
121VU	HYDRAULIC/LGCIU/SYS1/GRND SPLY	52GA	Q34
121VU	FLIGHT CONTROLS/FCDC2/SPLY	20CE2	Q20
121VU	FLIGHT CONTROLS/SEC2/SPLY	21CE2	Q18
121VU	FLIGHT CONTROLS/ELAC2/NORM/SPLY	15CE2	R20

Subtask 27-34-00-860-065-B

D. Aircraft Maintenance Configuration
(1) On the overhead panel 20VU, make sure that:

the 3 OFF/NAV/ATT selector switches are in OFF position.

(2) On the overhead panel 23VU, make sure that:

the FLT CTL/ELAC 1 and FLT CTL/SEC 1 pushbutton switches are pushed (on these pushbutton switches, the FAULT and OFF legends are off).

(3) On the overhead panel 24VU, make sure that:

the FLT CTL/ELAC 2 and FLT CTL/SEC 2 pushbutton switches are pushed (on these pushbutton switches, the FAULT and OFF legends are off).

(4) Pressurize the aircraft hydraulic systems (Ref. AMM TASK 29-23-00-863-001) (Ref. AMM TASK 29-24-00-863-001) (Ref. AMM TASK 29-10-00-863-003).
(5) On the center pedestal, make sure that the pitch-trim control wheels are set to 0.
(6) Put a WARNING NOTICE(S) on the pitch-trim control wheels to tell persons not to move the THS.
(7) Safety the CAPT and F/O side stick controllers with the 98D27903500000 PIN-SIDE STICK LOCKING.
(8) Put the WARNING NOTICE(S) on the CAPT and F/O side sticks to tell persons not to touch the side sticks.
(9) Install the 0U190360 PIN-RIGGING,THS ACTUATOR,MECHANICAL INPUT LEVER (5) on the screwjack of the THS actuator (6).
(10) Make sure that there is no warning related to the LGCIUs on the upper ECAM display unit.
(11) Install the pointer of the 98D27303000001 LOAD,APPLICATION TOOL-ELEVATOR, AILERON, RUDDER on the trailing edge of the elevator near the tail cone.

Pointer and Triangle Reference Positioning

4. Procedure
Subtask 27-34-00-220-059-B

A. Check of the Position of the Reference Triangle.
(1) Before adjustment of the elevators, check the position of the reference triangle (Ref. AMM TASK 27-34-00-220-003).

Subtask 27-34-00-820-051-D

B. Adjustement of the Elevator and the Hydraulic Actuation

NOTE: The inboard servocontrols (Green and Yellow) are in the active mode.
The outboard servocontrols (Blue) are in the damping mode.

NOTE: If you see oscillations when the servo control is in the active mode, do a check of these oscillations (Ref. AMM TASK 27-34-00-200-002).

(1) With the pointer make sure that:

the trailing edges of the elevators are aligned with the reference triangle on the two sides of the tail cone. If not, adjust the inboard servocontrol:

(a) Cut and remove the lockwire from the lock nut (2).
(b) Loosen the lock nut (2).
(c) Move the lock washers (3) apart.
(d) Turn the rod (4) (in the correct direction) until the trailing edges of the elevators are aligned with the reference triangle on the two sides of the tail cone.
(e) TORQUE the lock nut (2) to between 3.5 and 3 m.daN (25.81 and 22.12 lbf.ft )

.
(f) Make sure that the adjustment does not change when you TORQUE the lock nut.
(g) Safety the lock nut (2) with Lockwire-corrosion resistant steel dia 0.8 mm (0.03 in.).

CAUTION: BE CAREFUL WHEN YOU USE THE RIGGING PIN ON THE TRANSDUCER UNIT. DO NOT USE FORCE TO ENGAGE THE RIGGING PIN IN THE TRANSDUCER UNIT. IF YOU USE FORCE, THE RIGGING PIN WILL NOT DISENGAGE FREELY AND DAMAGE TO THE TRANSDUCER UNIT CAN OCCUR.

(h) Make sure that you can engage easily the rigging pin into the elevator position transducer-unit (1) on the two sides.

Elevator Position Transducer Unit

NOTE: The rigging pin is part of the transducer unit.

If you cannot, adjust the length of the control rod (4) as follows:
1 Cut and discard the lockwire from the nuts (2).
2 Loosen the nuts (2).
3 Remove the bonding lead from the lock washer (3).
4 Disengage the lock washers (3).
5 Turn the control rod body (4) until you can engage freely the rigging pin in the transducer unit (1).
6 Engage the lock washers (3) and tighten the nuts (2) on the rod (4).
7 Do again these steps (from para.6_) until you can engage freely the rigging pin in the transducer unit (1).
8 When you can engage the rigging pin:

On the upper ECAM display unit, make sure that the ELAC 2 PITCH FAULT warning is not shown.

9 Tighten the lock nut.
10 Safety the nuts (2) with lockwire-corrosion resistant steel dia 0.8 mm (0.03 in.).
11 Install the bonding lead on the washer (3).
12 Safety the lock nut with Lockwire corrosion-resistant steel dia 0.8 mm (0.03 in.)
(2) On the overhead panel 24VU:

release the FLT CTL/ELAC 2 pushbutton switch (on this pushbutton switch, the OFF legend comes on).

(3) Make sure that the elevator trailing edge position has not changed.

NOTE: Now, the inboard servocontrols are in the damping mode.
The outboard servocontrols are in the active mode.

(4) If the elevator moves, do this adjustment :
(a) Cut and remove the lockwire from the lock nut (2).
(b) Loosen the lock nut (2).
(c) Move the lock washers (3) apart.
(d) Turn the rod (4) (in the correct direction) until:
1 The trailing edges of the elevators are aligned with the reference triangle on the two sides of the tail cone.
2 You can easily engage and disengage the rigging pin into the elevator position transducer-unit.
3 On the upper ECAM display unit, make sure that the ELAC 1 PITCH FAULT warning is not shown.
(e) TORQUE the lock nut (2) to between 3.5 and 3 m.daN (25.81 and 22.12 lbf.ft )

.
(f) Make sure that the adjustment does not change when you TORQUE the lock nut.
(g) Safety the lock nut (2) with Locwire corrosion-resistant steel dia 0.8 mm (0.03 in.).
(5) On the overhead panel 24VU:

push the FLT CTL/ELAC 2 pushbutton switch (on this pushbutton switch, the OFF legend goes off and the FAULT legend comes).
when the FAULT legend goes off, release the FLT CTL/ELAC 2 pushbutton switch (on this pushbutton switch, the OFF legend comes on).

(6) Make sure that the elevator trailing edge position has not changed. If you see a position variation, do the adjustment of the servocontrol again.
(7) On the overhead panel 24VU:

push the FLT CTL/ELAC 2 pushbutton switch (on this pushbutton switch, the OFF legend goes off).

(8) Remove the pointer of 98D27303000001 LOAD,APPLICATION TOOL-ELEVATOR, AILERON, RUDDER.
(9) Remove the rigging pin from the CAPT and F/O sidestick controllers.
(10) Remove the rigging pin (5) from the screwjack of the THS actuator (6).

Adjustment of the Elevator Servocontrol

Subtask 27-34-00-710-051-B

C. Test
(1) Do the operational test of the elevators (Ref. AMM TASK 27-34-00-710-001).

5. Close-up
Subtask 27-34-00-860-064-B

A. Put the aircraft back to its initial configuration.
(1) Depressurize the aircraft hydraulic systems (Ref. AMM TASK 29-23-00-864-001) (Ref. AMM TASK 29-24-00-864-001) (Ref. AMM TASK 29-10-00-864-003).
(2) Remove the WARNING NOTICE(S).
(3) Make sure that the work area is clean and clear of tools and other items.
(4) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).

Subtask 27-34-00-410-051-C

B. Close Access
(1) Close the access door 312AR.
(2) Close the THS trailing edge access panels (Ref. AMM TASK 55-13-11-400-001):
(a) 334DB for the left elevator
(b) 344DB for the right elevator
(3) Install the protective cover on the battery power center 105VU.
(4) Tighten the two screws.
(5) Close the access door 822
(6) Remove the access platform(s).

[Rev.10 from 2021] 2026.03.31 23:50:05 UTC