Detailed Inspection of the Torque-Link Center Hinge-Pin

TASK 32-21-00-220-802-A
Detailed Inspection of the Torque-Link Center Hinge-Pin

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: 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: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

ZONE: 711

1. Reason for the Job

NOTE: This task is only applicable for the NLG with the lock plate on the torque-link center hinge-pin.
For the NLG without the lock plate on the torque-link center hinge-pin, refer to TASK 32-21-00-200-803-A.

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

REFERENCE	QTY	DESIGNATION
No specific	1	AIR SOURCE FILTERED, DRY
No specific	AR	SAFETY BARRIER(S)
No specific	AR	WARNING NOTICE(S)

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.08BBB1)	Non Aqueous Cleaner-- Petroleum Based -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
711	NOSE GEAR

D. Referenced Information

REFERENCE	DESIGNATION
TASK 32-00-00-481-001-A	Installation of the Safety Devices on the Landing Gears
TASK 32-21-27-000-002-A	Removal of the Torque-Link Center Hinge
TASK 32-21-27-400-002-A	Installation of the Torque-Link Center Hinge
NLG Torque-Link Center-Hinge ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 32-21-00-941-099-B ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.
(2) Put the WARNING NOTICE(S) in position to tell persons not to operate the landing gear or the landing gear doors.
(3) Make sure that the D23080000 PIN-GROUND LOCK,NLG or the MZ23080000 PIN-LOCKING is in position (Ref. AMM TASK 32-00-00-481-001).

Subtask 32-21-00-020-055-B ** ON A/C NOT FOR ALL

B. Removal of Component
(1) Remove the torque-link-center hinge-pin (Ref. AMM TASK 32-21-27-000-002).

4. Procedure
Subtask 32-21-00-220-075-B ** ON A/C NOT FOR ALL

A. Detailed Inspection of the Torque-Link Center Hinge-Pin

NLG Torque-Link Center-Hinge ** ON A/C NOT FOR ALL

(1) If the torque-link center hinge-pin is bent:
(a) Install the new torque-link center hinge-pin (Ref. AMM TASK 32-21-27-400-002).
(2) If the torque-link center hinge-pin is not bent:
(a) Clean the torque-link center hinge-pin with Non Aqueous Cleaner-- Petroleum Based - (Material No.08BBB1) and dry it with the AIR SOURCE FILTERED, DRY.
(b) Clean all the threads and splines. Make sure that there is no grease at the thread/spline root level.
(c) Carefully examine the torque-link center hinge-pin for cracks.
1 If you find cracks:
a Install the new torque-link center hinge-pin (Ref. AMM TASK 32-21-27-400-002).
(d) Carefully examine the threads and the splines of the torque-link center hinge-pin and the threads of the nut for damage and corrosion.
1 If you find damage or corrosion:
a Install the new torque-link center hinge-pin and the nut (Ref. AMM TASK 32-21-27-400-002).

5. Close-up
Subtask 32-21-00-420-056-B ** ON A/C NOT FOR ALL

A. Installation of Component
(1) Make sure that the work area is clean and clear of tools and other items.
(2) If applicable, install the torque-link center hinge-pin (Ref. AMM TASK 32-21-27-400-002).

Subtask 32-21-00-942-075-B ** ON A/C NOT FOR ALL

B. Put the aircraft back to its initial configuration.
(1) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.10 from 2021] 2026.04.01 12:30:25 UTC