Servicing of the Hydraulic Brake Filter

TASK 32-43-21-600-001-A
Servicing of the Hydraulic Brake Filter

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: OBEY THE HYDRAULIC SAFETY PROCEDURES.

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

FIN: 2862GM ** 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	ACCESS PLATFORM 2M (6 FT)
No specific	1	CONTAINER 5 L (1.32 USGAL)
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	1	WARNING NOTICE(S)

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.02ABA1)	Phosphate Ester Hydraulic Fluid-General Power - -
(Material No.14QFB1)	Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -

C. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
2	FILTER CARTRIDGE	AIPC 32-42-12-01-060

D. Referenced Information

REFERENCE	DESIGNATION
TASK 12-12-29-611-001-A	Fill the Hydraulic Fluid Reservoir with a Hand Pump
TASK 29-00-00-910-002-A	Safety Procedures of the Hydraulic System
TASK 29-10-00-863-002-A	Pressurize the Yellow Hydraulic System with a Hydraulic Ground Power-Cart
TASK 29-10-00-864-002-A	Depressurize the Yellow Hydraulic System
TASK 29-14-00-614-001-A	Depressurization of the Hydraulic Reservoirs
TASK 29-23-00-860-001-A	Disconnection of the Isolation Coupling of the Power Transfer Unit (PTU)
TASK 29-23-00-860-002-A	Connection of the Isolation Coupling of the Power Transfer Unit (PTU)
TASK 32-12-00-010-001-A	Open the Main Gear Doors for Access
TASK 32-12-00-410-001-A	Close the Main Gear Doors after Access
TASK 32-43-00-710-001-A	Operational Check of Alternate Braking System
Hydraulic Brake Filter

3. Job Set-up
Subtask 32-43-21-860-053-A

A. Aircraft Maintenance Configuration
(1) Depressurize the Yellow hydraulic system (Ref. AMM TASK 29-10-00-864-002).

Subtask 32-43-21-010-051-A

B. Get Access
(1) Open the right MLG door (Ref. AMM TASK 32-12-00-010-001).

Subtask 32-43-21-869-051-A

C. Disconnection of the PTU Isolation Coupling
(1) Depressurize the reservoir of the Yellow hydraulic system (Ref. AMM TASK 29-14-00-614-001).
(2) Disconnect the PTU isolation coupling (Ref. AMM TASK 29-23-00-860-001).
(3) Put the ACCESS PLATFORM 2M (6 FT) in position.
(4) Put the CONTAINER 5 L (1.32 USGAL) below the hydraulic brake filter 2862GM to collect the hydraulilc fluid leakage.

Subtask 32-43-21-865-053-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
121VU	HYDRAULIC/HYD POWER/Y	3803GX	N30
** ON A/C 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
121VU	HYDRAULIC/PARK BRK/CTL/STBY	71GG	N37
121VU	HYDRAULIC/PARK BRK/CTL/NORM	70GG	N36
** ON A/C NOT FOR ALL
121VU	HYDRAULIC/HYD POWER/Y	3803GX	N31
** ON A/C ALL
123VU	Y HYD/ELEC/PUMP	3802GX	AB06
123VU	Y HYD/ELEC/ELEC PUMP/NORM	3801GX	AB03

Subtask 32-43-21-941-051-A

E. Safety Precautions
(1) Put the WARNING NOTICE(S) in position to tell persons not to pressurize the Yellow hydraulic system:

On panel 40VU in the cockpit
On the ground service panel of the Yellow hydraulic system.

4. Procedure
Subtask 32-43-21-020-051-A

A. Removal of the Filter 2862GM
(1) Obey the hydraulic safety procedures (Ref. AMM TASK 29-00-00-910-002).

WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.

(2) Remove and discard the lockwire from the bowl (3) and the filter head (1).
(3) Remove the bowl (3) and the filter cartridge (2). Discard the filter cartridge (2).

Subtask 32-43-21-560-052-A

B. Preparation for Installation
(1) Clean the component interface and/or the adjacent area.
(2) Do an inspection of the component interface and/or the adjacent area.
(3) Make sure that the parts retained from the removed component are clean and in the correct condition.
(4) If necessary, push in the red clogging indicator.
(5) Apply Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) to:

The threads of the bowl (3)
The packing that is installed in the new filter cartridge (2).

Subtask 32-43-21-420-051-A

C. Installation of Brake Filter 2862GM
(1) Install the AIPC 32-42-12-01-060 FILTER CARTRIDGE (2) in the bowl (3).
(2) Put the bowl (3) in position and tighten the bowl to the filter head (1) with your hand.

(3) Safety the bowl (3) to the filter head (1) with 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.

Subtask 32-43-21-865-054-A

D. 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/HYD POWER/Y	3803GX	N30
** ON A/C 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
121VU	HYDRAULIC/PARK BRK/CTL/STBY	71GG	N37
121VU	HYDRAULIC/PARK BRK/CTL/NORM	70GG	N36
** ON A/C NOT FOR ALL
121VU	HYDRAULIC/HYD POWER/Y	3803GX	N31
** ON A/C ALL
123VU	Y HYD/ELEC/PUMP	3802GX	AB06
123VU	Y HYD/ELEC/ELEC PUMP/NORM	3801GX	AB03

Subtask 32-43-21-560-053-A

E. Connection of the PTU Isolation Coupling
(1) If necessary fill the reservoir of the Yellow hydraulic system to the correct level (Ref. AMM TASK 12-12-29-611-001).
(2) Connect the PTU isolation coupling (Ref. AMM TASK 29-23-00-860-002).
(a) Pressurize the Yellow hydraulic system
(Ref. AMM TASK 29-10-00-863-002).
(3) Test of the System
(a) Remove the WARNING NOTICE(S).
(b) Do the operational check of the alternative braking system (Ref. AMM TASK 32-43-00-710-001).
(c) Operate the brakes and make sure that:

The clogging indicator stays in
There is no hydraulic fluid leakage from the hydraulic brake filter 2862GM.

(d) Remove the container.
(e) Remove the access platform(s).

5. Close-up
Subtask 32-43-21-410-051-A

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the right MLG door (Ref. AMM TASK 32-12-00-410-001).
(3) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.10 from 2021] 2026.04.01 00:48:58 UTC