Installation of the MLG Wheel

TASK 32-41-11-400-006-A
Installation of the MLG Wheel

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: YOU MUST NOT PUT TOO MUCH GREASE ON THE AXLE SLEEVE. A VERY HOT BRAKE CAN CAUSE THE GREASE TO BURN AND CAUSE A FIRE.

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

ZONE: 731
ZONE: 741
FIN: 2649GM
FIN: 2650GM
FIN: 2651GM
FIN: 2652GM
FIN: 2874GM ** ON A/C NOT FOR ALL
FIN: 2875GM ** ON A/C NOT FOR ALL
FIN: 2876GM ** ON A/C NOT FOR ALL
FIN: 2877GM ** ON A/C NOT FOR ALL

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

REFERENCE	QTY	DESIGNATION
No specific	1	AIR SOURCE - REGULATED, FILTERED, DRY
No specific	1	AIR SOURCE FILTERED, DRY
No specific	AR	TROLLEY - WHEEL CHANGE, A/C
No specific	Torque wrench: range to between 4.5 and 4 m.N (39.82 and 35.40 lbf.in )
No specific	Torque wrench: range to between 100 and 50 m.N (73.75 and 36.87 lbf.ft )
No specific	Torque wrench: range to between 190 and 150 m.N (140.12 and 110.62 lbf.ft )
No specific	Torque wrench: range to between 300 and 250 m.N (221.24 and 184.37 lbf.ft )
No specific	Torque wrench: range to between 0.34 and 0.28 m.daN (30.09 and 24.78 lbf.in )
No specific	Torque wrench: range to between 0.45 and 0.4 m.daN (39.82 and 35.40 lbf.in )
No specific	Torque wrench: range to between 22 and 20 m.daN (162.24 and 147.49 lbf.ft )
No specific	Torque wrench: range to between 44 and 40 m.daN (324.48 and 294.99 lbf.ft )
460007230	1	ADAPTOR - TORQUE
5E92-0300	1	PROTECTOR-AXLE,MLG
H47682	1	ADAPTOR-MLG

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.03GBB1)	Synthetic Oil base Grease-General Purpose Clay Thickened -
(Material No.03GBC1)	Synthetic Oil base Grease-General Purpose Lithium Thickened Low Temp. -
(Material No.03GCB1)	Synthetic Oil base Grease-Landing Gear Wheel Bearing Lithium Thickened -
(Material No.03HBD9)	Synthetic Ester base Grease-General Purpose Low Temp -
(Material No.03LBB1)	Grease-Thread Anti-seize Graphited and Petrolatum -
(Material No.08BBB1)	Non Aqueous Cleaner-- Petroleum Based -

C. Work Zones and Access Panels

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

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
4	COTTER PINS	AIPC 32-11-13-01-200
5	PIN	AIPC 32-11-13-01-200
4	NUT	AIPC 32-11-13-01-210
5	NUTS	AIPC 32-11-13-01-210
4	COTTER PINS	AIPC 32-11-85-61-200
5	PIN	AIPC 32-11-85-61-200
4	NUT	AIPC 32-11-85-61-210
5	NUTS	AIPC 32-11-85-61-210

E. Referenced Information

REFERENCE	DESIGNATION
TASK 07-11-00-581-001-A	Lifting for Aircraft Maintenance Operations
TASK 07-11-00-586-002-A	Lowering of the Aircraft for Maintenance Operations
TASK 07-12-00-582-002-A	Jacking of the Main Landing Gear
TASK 12-14-32-614-001-A	Nitrogen Filling of the Tires
TASK 29-10-00-863-002-A	Pressurize the Yellow Hydraulic System with a Hydraulic Ground Power-Cart
TASK 29-24-00-863-001-A	Pressurize the Yellow Hydraulic System with the Electric Pump
TASK 32-00-00-081-001-A	Removal of the Safety Devices from the Landing Gears
TASK 32-00-00-481-001-A	Installation of the Safety Devices on the Landing Gears
TASK 32-41-00-210-003-A	Functional Check of Tire Pressures
TASK 32-41-00-910-001-A	Tire Mixability Precautions
TASK 32-42-27-000-001-A	Removal of the Brake
TASK 32-42-27-210-006-A	Inspection/Check of the Brake with the Wheel Removed
TASK 32-42-27-400-001-A	Installation of the Brake
TASK 32-48-00-720-001-A	Functional Test of the Brake Fans
TASK 32-48-51-400-005-A	Installation of the Fan Assy
TASK 12-22-00-00	LUBRICATION - DESCRIPTION AND OPERATION
Main Gear Wheel ** ON A/C NOT FOR ALL
Main Gear Wheel ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 32-41-11-941-097-A

A. Safety Precautions
(1) Make sure that the warning notice is in position in the cockpit to tell persons not to operate the landing gear.
(2) Make sure that the wheel chocks are in position.
(3) Make sure that the safety devices are installed on the landing gears (Ref. AMM TASK 32-00-00-481-001).

Subtask 32-41-11-865-115-A

B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
121VU	HYDRAULIC/BRK FAN/WHEELS/3 AND 4	2GS	L35
121VU	HYDRAULIC/BRK FAN/WHEELS/1 AND 2	1GS	L32
121VU	HYDRAULIC/BRK/FAN/CTL	3GS	M32

Subtask 32-41-11-860-116-B ** ON A/C NOT FOR ALL

C. Aircraft Maintenance Configuration
(1) Do one of the steps that follow:
(a) If you removed the MLG wheel from one of the two MLGs (LH or RH), make sure that the applicable MLG axle is lifted (Ref. AMM TASK 07-12-00-582-002).

Make sure that you do not lift the two MLG axles at the same time.
Make sure that you do not remove more than one MLG wheel at the same time.

(b) If you removed the MLG wheel(s) from the two MLGs (LH and RH), make sure that the aircraft is lifted on jacks (Ref. AMM TASK 07-11-00-581-001).
(2) Make sure that the F46754-1000 PROTECTOR is installed.
(3) Make sure that the PARK BRK control switch is set to ON.
(a) On panel 400VU, make sure that the brake pressure indication on the Yellow brake-pressure triple-indicator is correct.
(b) If necessary, pressurize the brake accumulator with the Yellow hydraulic system (Ref. AMM TASK 29-10-00-863-002) or (Ref. AMM TASK 29-24-00-863-001).

Subtask 32-41-11-860-116-D ** ON A/C NOT FOR ALL

Make sure that you do not lift the two MLG axles at the same time.
Make sure that you do not remove more than one MLG wheel at the same time.

(b) If you removed the MLG wheel(s) from the two MLGs (LH and RH), make sure that the aircraft is lifted on jacks (Ref. AMM TASK 07-11-00-581-001).
(2) Make sure that the Q47316 PROTECTOR-MLG AXLE (MHB) is installed.
(3) Make sure that the PARK BRK control switch is set to ON.
(a) On panel 400VU, make sure that the brake pressure indication on the Yellow brake-pressure triple-indicator is correct.
(b) If necessary, pressurize the brake accumulator with the Yellow hydraulic system (Ref. AMM TASK 29-10-00-863-002) or (Ref. AMM TASK 29-24-00-863-001).

4. Procedure

NOTE: If the wheel has a pressure-sensor seal cap, make sure that the seal cap is correctly installed and safetied with a nut and a cotter pin.

NOTE: Because of the aircraft configuration, the installation of the Tire Pressure Indicating System (TPIS) balance weight changes: If the aircraft has the TPIS and the Brake Cooling Fan (BCF)/Universal Brake Cooling Fan (UBCF), no TPIS balance weight is installed on the wheel rim. The balance weight is part of the BCF/UBCF assembly (brake-fan shroud support), refer to the BCF/UBCF Component Maintenance Manual (CMM). If the aircraft has the TPIS only (no BCF/UBCF): * On the A321 aircraft, you must install the TPIS balance weight on the wheel rim, refer to the wheel CMM. * On the A318-A319-A320 aircraft, you must install the TPIS balance weight on the hubcap, refer to the hubcap CMM. If the aircraft has no TPIS, no TPIS balance weight is necessary.

Subtask 32-41-11-210-075-A

A. Tires of Different Type
(1) Obey the tire mixability precautions (Ref. AMM TASK 32-41-00-910-001).

Subtask 32-41-11-560-070-A ** ON A/C NOT FOR ALL

B. Preparation of the Wheel before Installation
(1) Make sure that the wheel for installation has the same type of tire (radial or cross-ply) as the other wheel on the MLG.

NOTE: The tire interchange is not permitted.

(2) Make sure that the parts retained from the removed component are clean and in the correct condition.
(3) Clean the component interfaces and the adjacent area.
(4) Do an inspection of the component interfaces and the adjacent area.
(a) Examine the locking holes and the adjacent areas carefully.
(5) Remove all particles of dust from the brake.
(6) Do an inspection of the brake with the wheel removed (Ref. AMM TASK 32-42-27-210-006)
(a) If the brake is unserviceable, it must be replaced (Ref. AMM TASK 32-42-27-000-001) and (Ref. AMM TASK 32-42-27-400-001).
(7) Make sure that the driving keys on the brake rotors are correctly aligned.
(8) Make sure that the splines of the tachometer drive shaft (14) and the splines (10) of the hubcap (11) are in the correct condition.
(a) If you find damage, replace the related parts.
(9) Clean the axle sleeve (2) with Non Aqueous Cleaner-- Petroleum Based - (Material No.08BBB1) and dry it with AIR SOURCE FILTERED, DRY or AIR SOURCE - REGULATED, FILTERED, DRY.
(10) Do a visual inspection of the axle protective sleeve to make sure that it is in the correct condition.
(11) If you find damage, refer to CMM or contact MEGGIT for the allowable tolerance.
(12) Make sure that the retaining ring (3) of the axle sleeve (2) is in the correct position.

NOTE: The retaining ring (3) must be correctly engaged in its groove. If the axle sleeve (2) is not installed correctly, you can damage it when you install the axle nut (7).

(13) Clean the splines (10) of the tachometer hubcap (11) and the splines of the tachometer drive shaft (14) with Non Aqueous Cleaner-- Petroleum Based - (Material No.08BBB1) and dry it with AIR SOURCE FILTERED, DRY or AIR SOURCE - REGULATED, FILTERED, DRY.
(14) Apply a thin layer of Grease-Thread Anti-seize Graphited and Petrolatum - (Material No.03LBB1) on the splines (10) and on the splines of the tachometer drive shaft (14).

WARNING: YOU MUST NOT PUT TOO MUCH GREASE ON THE AXLE SLEEVE. A VERY HOT BRAKE CAN CAUSE THE GREASE TO BURN AND CAUSE A FIRE.

(15) Apply a thin layer of Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) or Synthetic Oil base Grease-General Purpose Clay Thickened - (Material No.03GBB1) or Synthetic Oil base Grease-Landing Gear Wheel Bearing Lithium Thickened - (Material No.03GCB1) or Synthetic Oil base Grease-General Purpose Lithium Thickened Low Temp. - (Material No.03GBC1) to the axle sleeve (2).

NOTE: For the lubricant grease specification and the lubrication requirements, refer to (Ref. AMM D/O 12-22-00-00).

(16) Apply Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) or Synthetic Oil base Grease-General Purpose Clay Thickened - (Material No.03GBB1) or Synthetic Oil base Grease-General Purpose Lithium Thickened Low Temp. - (Material No.03GBC1) or Synthetic Oil base Grease-Landing Gear Wheel Bearing Lithium Thickened - (Material No.03GCB1) to all the bearing surfaces and to the threads of the axle.

NOTE: For the lubricant grease specification and the lubrication requirements, refer to (Ref. AMM D/O 12-22-00-00).

(17) Clean the inner surface of the wheel bearings (surface that touches the axle). Do not apply grease on these surfaces.

Subtask 32-41-11-560-070-F ** ON A/C NOT FOR ALL

B. Preparation of the Wheel before Installation
(1) Make sure that the wheel for installation has the same type of tire (radial or cross-ply) as the other wheel on the MLG.

NOTE: The tire interchange is not permitted.

(2) Make sure that the parts retained from the removed component are clean and in the correct condition.
(3) Clean the component interfaces and the adjacent area.
(4) Do an inspection of the component interfaces and the adjacent area.
(a) Examine the locking holes and the adjacent areas carefully.
(5) Remove all particles of dust from the brake.
(6) Do an inspection of the brake with the wheel removed (Ref. AMM TASK 32-42-27-210-006)
(a) If the brake is unserviceable, replace it (Ref. AMM TASK 32-42-27-000-001) and (Ref. AMM TASK 32-42-27-400-001).
(7) Make sure that the driving keys on the brake rotors are correctly aligned.
(8) Make sure that the splines (9) of the tachometer drive shaft (10) are in the correct condition.
(a) If you find damage, replace the related parts.
(9) Clean the axle sleeve (2) with Non Aqueous Cleaner-- Petroleum Based - (Material No.08BBB1) and dry it with AIR SOURCE FILTERED, DRY or AIR SOURCE - REGULATED, FILTERED, DRY.
(10) Do a visual inspection of the axle protective sleeve to make sure that it is in correct condition.
(11) If you find damage, refer to CMM or contact MEGGIT for the permitted tolerance.
(12) Make sure that the retaining ring (3) of the axle sleeve (2) is in the correct position.

NOTE: The retaining ring (3) must be correctly engaged in its groove. If the axle sleeve (2) is not installed correctly, you can damage it when you install the axle nut (7).

(13) Clean the splines (9) of the tachometer drive shaft (10) with Non Aqueous Cleaner-- Petroleum Based - (Material No.08BBB1) and dry it with AIR SOURCE FILTERED, DRY or AIR SOURCE - REGULATED, FILTERED, DRY.
(14) Apply a thin layer of Grease-Thread Anti-seize Graphited and Petrolatum - (Material No.03LBB1) on the splines (9) of the tachometer drive shaft (10).

WARNING: YOU MUST NOT PUT TOO MUCH GREASE ON THE AXLE SLEEVE. A VERY HOT BRAKE CAN CAUSE THE GREASE TO BURN AND CAUSE A FIRE.

NOTE: For the lubricant grease specification and the lubrication requirements, refer to (Ref. AMM D/O 12-22-00-00).

Apply a thin layer of Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) or Synthetic Oil base Grease-General Purpose Clay Thickened - (Material No.03GBB1) or Synthetic Oil base Grease-Landing Gear Wheel Bearing Lithium Thickened - (Material No.03GCB1) or Synthetic Oil base Grease-General Purpose Lithium Thickened Low Temp. - (Material No.03GBC1) to the load-bearing surface of the axle nut (7).

NOTE: For the lubricant grease specification and the lubrication requirements, refer to (Ref. AMM D/O 12-22-00-00).

(16) Clean the inner surface of the wheel bearings (surface that touches the axle). Do not apply grease on these surfaces.

Subtask 32-41-11-560-070-X

DELETED

Subtask 32-41-11-420-081-A ** ON A/C NOT FOR ALL

C. Installation of the Wheel

WARNING: BE CAREFUL WHEN YOU REMOVE/INSTALL THE WHEEL AND TIRE ASSEMBLY TO PREVENT INJURY TO PERSONS AND/OR DAMAGE TO THE WHEEL, AXLE OR OTHER EQUIPMENT. THE ASSEMBLY IS VERY HEAVY (BETWEEN 130 KG AND 200 KG (290 LBS AND 440 LBS)).

WARNING: USE PROTECTIVE GOGGLES WHEN YOU REMOVE OR INSTALL A COTTER PIN. EACH TIME YOU REMOVE A COTTER PIN DURING THE TASK, DISCARD IT IMMEDIATELY. A LOOSE COTTER PIN CAN CUT YOU OR MAKE YOU BLIND.

CAUTION: MAKE SURE THAT THE AXLE THREAD PROTECTOR IS CORRECTLY INSTALLED ON THE AXLE. YOU CAN CAUSE DAMAGE TO THE AXLE SLEEVE AND THE AXLE WHEN YOU REMOVE/INSTALL A WHEEL IF THE AXLE THREAD PROTECTOR IS:

NOT USED.
NOT FULLY ENGAGED ON THE AXLE.

(1) Use the TROLLEY - WHEEL CHANGE, A/C to align the wheel (1) with the driving keys on the brake rotors.
(2) Push the wheel (1) fully on the axle.
(3) Remove the F46754-1000 PROTECTOR.
(4) Install the axle nut (7) on the axle and tighten it with the H47682 ADAPTOR-MLG.
(5) In the cockpit, set the PARK BRK control switch to OFF.
(6) TORQUE the axle nut (7) to between 300 and 250 m.N (221.24 and 184.37 lbf.ft )

while you turn the wheel (1) in the same direction.
(7) Make sure that the wheel does not turn and loosen the axle nut (7) gradually.
(8) TORQUE the axle nut (7) again until you get a torque value to between 100 and 50 m.N (73.75 and 36.87 lbf.ft )

NOTE: It can be necessary to do steps (7) and (8) more than one time to get the specified torque value.

(9) TORQUE the axle nut (7) to between 190 and 150 m.N (140.12 and 110.62 lbf.ft )

while you turn the wheel (1) in the same direction.
(10) Tighten the axle nut (7) until the holes in the nut are aligned with the holes in the axle.
(11) Install the bolts (8), the washers (6) and the new AIPC 32-11-13-01-210 NUTS (5) or the new AIPC 32-11-85-61-210 NUTS (5).

CAUTION: MAKE SURE THAT YOU INSTALL THE BOLTS FROM THE INSIDE OF THE AXLE NUT. THUS, THE WASHERS AND THE NUTS ARE ON THE OUTSIDE OF THE AXLE NUT. IF YOU DO NOT OBEY THIS INSTRUCTION, YOU CAN CAUSE DAMAGE TO THE MAIN WHEEL.

(12) TORQUE the nuts (5) to between 4.5 and 4 m.N (39.82 and 35.40 lbf.in )

.
(13) Install the new AIPC 32-11-13-01-200 COTTER PINS (4) or the new AIPC 32-11-85-61-200 COTTER PINS (4).
(14) After each MLG wheel change:
(a) Move the rotating mechanism of the MLG wheel manually to make sure that it moves freely.

Subtask 32-41-11-420-081-D ** ON A/C NOT FOR ALL

C. Installation of the Wheel

NOT USED.
NOT FULLY ENGAGED ON THE AXLE.

(1) Use the TROLLEY - WHEEL CHANGE, A/C to align the wheel (1) with the driving keys on the brake rotors.
(2) Push the wheel (1) fully on the axle.
(3) Remove the Q47316 PROTECTOR-MLG AXLE (MHB) or the 5E92-0300 PROTECTOR-AXLE,MLG.
(4) Install the axle nut (7) on the axle and tighten it with the 460007230 ADAPTOR - TORQUE.
(5) In the cockpit, set the PARK BRK control switch to OFF.
(6) Turn the wheel in the direction of the axle nut rotation and TORQUE the axle nut (7) to between 44 and 40 m.daN (324.48 and 294.99 lbf.ft )

.
(7) Prevent the rotation of the wheel and loosen the axle nut (7) to 0 torque.
(8) Turn the wheel in the direction of the axle nut rotation and TORQUE the axle nut (7) to between 22 and 20 m.daN (162.24 and 147.49 lbf.ft )

.
(9) Tighten the axle nut (7) until the holes in the nut are aligned with the holes in the axle.
(10) Installation of the bolts:

(a) Install the bolts (8), the washers (6) and the new AIPC 32-11-13-01-210 NUTS (5) or AIPC 32-11-85-61-210 NUTS (5).
(11) TORQUE the nuts (5) to between 0.45 and 0.4 m.daN (39.82 and 35.40 lbf.in )

.
(12) Install the new AIPC 32-11-13-01-200 COTTER PINS (4) or AIPC 32-11-85-61-200 COTTER PINS (4).
(13) After each MLG wheel change:
(a) Move the rotating mechanism of the MLG wheel manually to make sure that it moves freely.

Subtask 32-41-11-420-081-W ** ON A/C NOT FOR ALL

C. Installation of the Wheel

WARNING: USE PROTECTIVE GOGGLES WHEN YOU REMOVE OR INSTALL A COTTER PIN. EACH TIME YOU REMOVE A COTTER PIN DURING THE TASK, DISCARD IT IMMEDIATELY. A LOOSE COTTER PIN CAN CUT YOU OR MAKE YOU BLIND.

NOT USED.
NOT FULLY ENGAGED ON THE AXLE.

(1) Use the TROLLEY - WHEEL CHANGE, A/C to align the wheel (1) with the driving keys on the brake rotors.
(2) Push the wheel (1) fully on the axle.
(3) Remove the Q47316 PROTECTOR-MLG AXLE (MHB) or 5E92-0300 PROTECTOR-AXLE,MLG or F46754-1000 PROTECTOR.
(4) Apply Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) or Synthetic Oil base Grease-General Purpose Clay Thickened - (Material No.03GBB1) or Synthetic Oil base Grease-Landing Gear Wheel Bearing Lithium Thickened - (Material No.03GCB1) or Synthetic Oil base Grease-General Purpose Lithium Thickened Low Temp. - (Material No.03GBC1) to the threads of the axle.

NOTE: For the lubricant grease specification and the lubrication requirements, refer to (Ref. AMM D/O 12-22-00-00).

(5) Install the axle nut (7) on the axle and tighten it with the 460007230 ADAPTOR - TORQUE.
(6) In the cockpit, set the PARK BRK control switch to OFF.
(7) Turn the wheel in the direction of the axle nut rotation and TORQUE the axle nut (7) to between 44 and 40 m.daN (324.48 and 294.99 lbf.ft )

.
(8) Prevent the rotation of the wheel and loosen the axle nut (7) to 0 torque.
(9) Turn the wheel in the direction of the axle nut rotation and TORQUE the axle nut (7) to between 22 and 20 m.daN (162.24 and 147.49 lbf.ft )

.
(10) Tighten the axle nut (7) until the holes in the nut are aligned with the holes in the axle.

(11) Install the bolts (8), the washers (6) and the new AIPC 32-11-13-01-210 NUT (4) or AIPC 32-11-85-61-210 NUT (4).
(12) TORQUE the nuts (4) to between 0.45 and 0.4 m.daN (39.82 and 35.40 lbf.in )

.
(13) Safety the nuts (4) with the new AIPC 32-11-13-01-200 PIN (5) or AIPC 32-11-85-61-200 PIN (5).
(14) After each MLG wheel change:
(a) Move the rotating mechanism of the MLG wheel manually to make sure that it moves freely.

Subtask 32-41-11-420-082-A ** ON A/C NOT FOR ALL

D. Installation of the Hubcap

CAUTION: BEFORE YOU COMPLETE THE WHEEL INSTALLATION PROCEDURE, DO A VISUAL INSPECTION TO MAKE SURE THAT NO DAMAGE OCCURRED TO PARTS DURING THE PROCEDURE. MAKE SURE THAT THE TACHOMETER DRIVE SHAFT MOVES FREELY. MAKE SURE THAT THERE ARE NO SIGNS OF DEFORMATION (TWISTING), CORROSION, FRICTION, SCRATCHES AND STAINS:

ON THE DRIVE SHAFT
ON THE SPLINES OF THE TACHOMETER DRIVE SHAFT
ON THE SPLINES OF THE TACHOMETER HUBCAP, OR
ON THE SPLINES OF THE DEBRIS GUARD (IF BRAKE FANS ARE INSTALLED).

YOU MUST REPLACE ALL DAMAGED PARTS. DAMAGED PARTS WILL PREVENT CORRECT ANTI-SKID BRAKING.

(1) Do a visual inspection of the hubcap to make sure that it is in the correct condition and serviceable. If damage is found, refer to the applicable CMMs for damage limits and repair procedures.
(2) Do a check of the locating pin for absence, extension (a maximum of 0.26 in. (6.60 mm)) and locking. Install the pin if it is missing.
(3) Install the hubcap (11) carefully in the tachometer drive shaft (14).
(a) Use the locating pin (12) to put the hubcap (11) in the correct position. This locks the shroud which then cannot turn on the wheel.
(4) Install the clamp (13).
(5) TORQUE the screw (9) to between 0.34 and 0.28 m.daN (30.09 and 24.78 lbf.in )

Subtask 32-41-11-420-082-E ** ON A/C NOT FOR ALL

D. Installation of the Fan
(1) Install the brake fan (Ref. AMM TASK 32-48-51-400-005).

NOTE: It is not necessary to install the motor assembly of the brake fan as described in the AMM task 32-48-51-400-005, if it was not removed during the removal of the wheel.

5. Close-up
Subtask 32-41-11-860-117-B

A. Aircraft Maintenance Configuration
(1) Inflate the tire to the unloaded pressure (Ref. AMM TASK 12-14-32-614-001)
(2) Turn the wheel manually to make sure that it is installed correctly.
(3) Lower the aircraft on its wheels (Ref. AMM TASK 07-12-00-582-002) or (Ref. AMM TASK 07-11-00-586-002).
(4) Make sure that the PARK BRK control switch is set to ON.
(5) Do the functional check of the tire pressures (Ref. AMM TASK 32-41-00-210-003).
(6) Make sure that the work area is clean and clear of tools and other items.
(7) Remove the safety devices from the landing gears (Ref. AMM TASK 32-00-00-081-001).

Subtask 32-41-11-865-117-A

B. 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/BRK FAN/WHEELS/3 AND 4	2GS	L35
121VU	HYDRAULIC/BRK FAN/WHEELS/1 AND 2	1GS	L32
121VU	HYDRAULIC/BRK/FAN/CTL	3GS	M32

Subtask 32-41-11-720-058-T ** ON A/C NOT FOR ALL

C. Functional Test
(1) Do the functional test of the brake fans (Ref. AMM TASK 32-48-00-720-001).

[Rev.10 from 2021] 2026.04.01 00:47:14 UTC