Operational Test of the Rudder Trim Function

TASK 22-62-00-710-001-A
Operational Test of the Rudder Trim Function

WARNING: MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED BEFORE YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT. UNWANTED ELECTRICAL POWER CAN BE DANGEROUS.

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: 210

1. Reason for the Job
Make sure that the rudder trim system No.1 (No.2) operates correctly.
2. Job Set-up Information
A. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
210	CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD

B. 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 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 31-60-00-860-001-A	EIS Start Procedure
TASK 31-60-00-860-002-A	EIS Stop Procedure

3. Job Set-up
Subtask 22-62-00-860-050-A

A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
(2) On the overhead panel, on the FLT CTL panel 23VU and 24VU:

Make sure that the FAC1 and FAC2 pushbutton switches are pushed (the FAULT and OFF legends are off).

(3) Do the EIS start procedure (ECAM only) (Ref. AMM TASK 31-60-00-860-001).
(4) On the center pedestal, on the ECAM control panel:

Get the F/CTL page.

(5) Pressurize the aircraft hydraulic systems (Ref. AMM TASK 29-23-00-863-001) (Ref. AMM TASK 29-10-00-863-003).

Subtask 22-62-00-865-050-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	AUTO FLT/FAC1/28VDC	5CC1	B04
49VU	AUTO FLT/FAC1/26VAC	14CC1	B03
** ON A/C NOT FOR ALL
49VU	AUTO FLT/FAC1/28VDC	5CC1	H10
49VU	AUTO FLT/FAC1/26VAC	14CC1	H09
** ON A/C ALL
121VU	AUTO FLT/RUDDER/TRIM/IND	15CC	M20
121VU	AUTO FLT/FAC2/28VDC	5CC2	M19
121VU	AUTO FLT/FAC2/26VAC	14CC2	M18

4. Procedure
Subtask 22-62-00-710-050-A

A. Operational Test of the Rudder Trim Function

NOTE: This test is for the system 1. For the system 2, use the indications between the parentheses.

ACTION	RESULT
1.On the FLT CTL panel 24VU (23VU):
Release the FAC2 (FAC1) pushbutton switch.	On the FAC2 (FAC1) pushbutton switch, the OFF legend comes on and the FAULT legend stays off.
2.On the center pedestal, on the RUD TRIM/PARKING BRK panel:
Make sure that the rudder trim indicator is energized.	The indicator shows approximately 0°.

Hold the RUD TRIM switch in the NOSE L position to get the maximum movement of the rudder.	On the F/CTL page on the lower ECAM display unit, the rudder trim and the rudder move to the left. The left pedal moves forward. The rudder trim indicator shows approximately the maximum threshold engraved on panel.
Release the switch.
Push and release the RUD TRIM/RESET pushbutton switch.	The rudder trim and the rudder go to the zero position. The rudder trim indicator shows approximately 0°.
Hold the RUD TRIM switch in the NOSE R position to get the maximum movement of the rudder.	On the F/CTL page on the lower ECAM display unit, the rudder trim and the rudder move to the right. The right pedal moves forward. The rudder trim indicator shows approximately the maximum threshold engraved on panel.
Release the switch.
Push and release the RUD TRIM/RESET pushbutton switch.	The rudder trim and the rudder go to the zero position. The rudder trim indicator shows approximately 0°.
3.On the FLT CTL panel 24VU (23VU):
Push the FAC2 (FAC1) pushbutton switch.	On this pushbutton switch, the OFF legend goes off and the FAULT legend stays off.

5. Close-up
Subtask 22-62-00-860-051-A

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 29-10-00-864-003).
(2) Do the EIS stop procedure (Ref. AMM TASK 31-60-00-860-002).
(3) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).

[Rev.10 from 2021] 2026.04.01 04:13:02 UTC