Reactivation of the Main Wheel Hubcap

TASK 32-41-00-440-002-A
Reactivation of the Main Wheel Hubcap

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: 731
ZONE: 741

1. Reason for the Job
CDL 32-01
Main Wheel Hubcap
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 3.4 and 2.8 m.N (30.09 and 24.78 lbf.in )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.03LBB1)	Grease-Thread Anti-seize Graphited and Petrolatum -
(Material No.08BAA9)	Non Aqueous Cleaner-General - -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
731	L.H MAIN GEAR
741	R.H MAIN GEAR

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 27-96-00-740-001-A	BITE Test of the EFCS (Ground Scanning)
TASK 29-24-00-863-001-A	Pressurize the Yellow Hydraulic System with the Electric Pump
TASK 32-42-00-440-003-A	Reactivation of Main Wheel Brakes
TASK 32-42-00-720-002-A	Functional Test of the Tachometers and the Anti-Skid System with the Normal Braking System ON
TASK 32-42-68-400-003-A	Installation of the MLG Tachometer-Drive
Main Wheel Hubcap ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 32-41-00-941-059-B ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) On right center instrument-panel 400VU:

Put the WARNING NOTICE(S) in position to tell persons not to operate the landing gear control-lever.

Subtask 32-41-00-865-059-A ** ON A/C NOT FOR ALL

B. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
121VU	HYDRAULIC/BRAKING AND STEERING/SYS2/SPLY	4GG	M36
121VU	HYDRAULIC/BRAKING AND STEERING/SYS2/CTL	3GG	M35
121VU	HYDRAULIC/BRAKING AND STEERING/SYS1/CTL	1GG	M34
121VU	HYDRAULIC/BRAKING AND STEERING/SYS1/IND AND/SPLY	2GG	M33

Subtask 32-41-00-860-058-B ** ON A/C NOT FOR ALL

C. Aircraft Maintenance Configuration
(1) On panel 110VU:

Make sure that the PARK BRK control switch is set to ON.

(2) On right center instrument-panel 400VU:

Make sure that the brake pressure indication on the Yellow brake-pressure triple indicator is correct.
If necessary, pressurize the brake accumulator with the yellow pump (Ref. AMM TASK 29-24-00-863-001).

Subtask 32-41-00-420-050-B ** ON A/C NOT FOR ALL

D. Preparation for Installation
(1) Clean the component interface and/or the adjacent area with Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(2) Make sure that the parts retained from the removed component are clean and in the correct condition.
(3) Do an inspection of the component interfaces and the adjacent area.

4. Procedure
Subtask 32-41-00-440-052-C ** ON A/C NOT FOR ALL

A. Reactivation of the Main Wheel Hubcap

Main Wheel Hubcap ** ON A/C NOT FOR ALL

(1) Install the applicable MLG tachometer drive shaft (Ref. AMM TASK 32-42-68-400-003).
(2) Apply a thin layer of Grease-Thread Anti-seize Graphited and Petrolatum - (Material No.03LBB1) to the tachometer drive shaft (2).
(3) Do the functional test of the tachometer (Ref. AMM TASK 32-42-00-720-002).
(4) Install the hubcap (7) on the wheel axle (1).
(5) Make sure that the pin in the hubcap (7) is correctly engaged in a hole of the main gear wheel.
(a) Make sure that the hubcap (7) is installed in the correct angular position.
(6) Put the clamp (5) in position on the hub cap (7).
(7) TORQUE the nut (3) to between 3.4 and 2.8 m.N (30.09 and 24.78 lbf.in )

.
(8) Do the reactivation of the applicable main wheel brake (Ref. AMM TASK 32-42-00-440-003).

Subtask 32-41-00-740-050-B ** ON A/C NOT FOR ALL

B. BITE Test
(1) BITE test of the EFCS
(a) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(b) Set the related SEC(s).
1 FOR [19GG] (TACHOMETER-WHEEL 1), [22GG] (TACHOMETER-WHEEL 4)
a On overhead panel 24VU:

Release FLT CTL SEC 2 pushbutton switch, then push it in.
Release FLT CTL SEC 3 pushbutton switch, then push it in.

2 FOR [20GG] (TACHOMETER-WHEEL 3), [21GG] (TACHOMETER-WHEEL 2)

On overhead panel 23VU, release FLT CTL SEC 1 pushbutton switch, then push it in.

(c) Do the BITE test of the EFCS computers (Ref. AMM TASK 27-96-00-740-001).
(d) Make sure that the MCDU shows no maintenance message related to the tachometer.
(e) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).

5. Close-up
Subtask 32-41-00-865-060-A ** ON A/C NOT FOR ALL

A. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
121VU	HYDRAULIC/BRAKING AND STEERING/SYS2/SPLY	4GG	M36
121VU	HYDRAULIC/BRAKING AND STEERING/SYS2/CTL	3GG	M35
121VU	HYDRAULIC/BRAKING AND STEERING/SYS1/CTL	1GG	M34
121VU	HYDRAULIC/BRAKING AND STEERING/SYS1/IND AND/SPLY	2GG	M33

Subtask 32-41-00-942-057-B ** ON A/C NOT FOR ALL

B. Removal of Equipment
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the WARNING NOTICE(S).
(3) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.10 from 2021] 2026.04.01 00:47:08 UTC