Removal of the Protective Cover of the Swivel Bearing

TASK 32-21-24-000-802-A
Removal of the Protective Cover of the Swivel Bearing

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: MAKE SURE THAT THE CONTROLS AGREE WITH THE POSITION OF THE ITEMS THEY OPERATE BEFORE YOU PRESSURIZE A HYDRAULIC SYSTEM. UNWANTED MOVEMENT OF HYDRAULICALLY OPERATED ITEMS CAN CAUSE SERIOUS INJURY AND/OR DAMAGE.

WARNING: PRESSURIZE ONLY THE HYDRAULIC SYSTEM(S) THAT IS (ARE) NECESSARY FOR THE TASK. ISOLATE THE OTHER HYDRAULIC SYSTEM(S) BEFORE YOU SUPPLY HYDRAULIC POWER TO THE AIRCRAFT.

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.

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
812, 822, 824

C. Referenced Information

REFERENCE	DESIGNATION
TASK 07-11-00-581-003-A	Lifting of the Aircraft at the Forward Jacking Point, MLG Wheels on the Ground
TASK 07-12-00-582-001-A	Jacking of the Nose Landing Gear
TASK 21-26-42-000-001-A	Removal of the Avionics Equipment Ventilation-Duct
TASK 52-41-00-010-002-A	Open the Avionics Compartment Doors for Access
Protective Cover of the Swivel Bearing

3. Job Set-up
Subtask 32-21-24-010-055-A

A. Get Access
(1) Lift the aircraft at the forward jacking point (Ref. AMM TASK 07-11-00-581-003).
(2) Open access doors 812, 822 and 824 to get access to the hinge points of the NLG (Ref. AMM TASK 52-41-00-010-002).
(3) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position in zone 123.
(4) If necessary, remove the avionics-equipment ventilation-duct (Ref. AMM TASK 21-26-42-000-001).

4. Procedure
Subtask 32-21-24-020-054-B

A. Removal of the Protective Cover of the Swivel Bearing
(1) If you cannot remove one or more bolts (7) because of the load on the NLG:
(a) Make sure that the shock absorber is not compressed.

Lightly release the NLG with the hydraulic jack (Ref. AMM TASK 07-12-00-582-001) and try again.

NOTE: During the removal of the protective cover, one bolt must always stay installed to prevent the movement of the bearing.

(2) Remove the cotter pins (2), nuts (1), washers (3) and one of the four installed bolts (7).
(3) Through the nose gear compartment, install the removed bolt (7) in the opposite direction through the swivel bearing and airframe to prevent the movement of the bearing.
(4) Remove the remaining three bolts (7), the protective cover (6), the O-rings (4) and (5) and discard the O-rings.

[Rev.10 from 2021] 2026.04.01 00:42:29 UTC