Visual Inspection of the Universal Joint

TASK 27-21-00-210-001-A
Visual Inspection of the Universal Joint

ZONE: 325

1. Reason for the Job
To make sure that the universal joint connected to the rudder trim actuator is in the correct condition.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 10M (33 FT) - ADJUSTABLE
No specific	AR	WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
325	VERTICAL STABILIZER TRAILING EDGE
325BL

C. 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)
Component Location

3. Job Set-up
Subtask 27-21-00-010-060-B

A. Get Access
Not applicable.

Subtask 27-21-00-860-054-B

B. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
(2) On the maintenance panel 50VU:
(a) Release the HYD/LEAK MEASUREMENT VALVES/G pushbutton switch. The OFF legend comes on.
(b) Release the HYD/LEAK MEASUREMENT VALVES/Y pushbutton switch. The OFF legend comes on.
(c) Release the HYD/LEAK MEASUREMENT VALVES/B pushbutton switch. The OFF legend comes on.
(3) Put a WARNING NOTICE(S) on the HYD section of the panel 50VU to tell persons not to operate the LEAK MEASUREMENT VALVES pushbutton switches.

Subtask 27-21-00-010-051-A

C. Get Access
(1) Put an ACCESS PLATFORM 10M (33 FT) - ADJUSTABLE in position at zone 325.
(2) Open the access door 325BL.

4. Procedure
Subtask 27-21-00-210-050-A

A. Visual Inspection of the Universal Joint
(1) Do the visual check of the universal joint (1) to make sure that there is no corrosion or cracks on the yokes.
(2) Move the universal joint (1) by hand to make sure that there is no play on the cross piece and on the yoke bushes.

5. Close-up
Subtask 27-21-00-860-055-A

A. Put the aircraft back to its initial configuration.
(1) On the maintenance panel 50VU:
(a) Push the HYD/LEAK MEASUREMENT VALVES/G pushbutton switch. The OFF legend goes off.
(b) Push the HYD/LEAK MEASUREMENT VALVES/Y pushbutton switch. The OFF legend goes off.
(c) Push the HYD LEAK MEASUREMENT VALVES/B pushbutton switch. The OFF legend goes off.
(2) At zone 147, remove the connector from the leak-measurement solenoid valve (1150GP).
(3) Connect the connector to the dummy connector attached to the aircraft structure.
(4) Install the blanking cap to the leak-measurement solenoid valve (1150GP).
(5) Remove the WARNING NOTICE(S).
(6) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).

Subtask 27-21-00-410-051-A

B. Close Access
(1) Close the access door 325BL.
(2) Remove the access platform(s).

[Rev.10 from 2021] 2026.03.31 23:48:01 UTC