Installation of the Filter Assembly

TASK 47-10-41-400-001-A
Installation of the Filter Assembly

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: YOU MUST PUT ON AND ATTACH A SAFETY HARNESS BEFORE YOU START WORK:

ON THE THS OR IN THE REAR FUSELAGE
ON TOP OF THE WINGS OR PYLONS.

WITHOUT A SAFETY HARNESS, YOU CAN FALL. THIS CAN KILL YOU OR CAUSE YOU INJURY.

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

FIN: 2YM ** 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	Torque wrench: range to between 0.84 and 0.65 m.daN (74.34 and 57.52 lbf.in )
No specific	Torque wrench: range to between 0.85 and 0.66 m.daN (75.22 and 58.41 lbf.in )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.03GEE1)	Synthetic Oil base Grease-Fuel and Oxidized Environment Fluorinated -
(Material No.04QAB2)	Coating_- Flexible Structure
(Material No.06AAA1)	Polysulfide Sealant_General Purpose Brushable -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
191BB

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
11	PACKING	AIPC 47-10-03-01-020
13	PACKING	AIPC 47-10-03-01-020
8	PACKING	AIPC 47-10-03-01-020
11	PACKING	AIPC 47-10-83-01-020
13	PACKING	AIPC 47-10-83-01-020
8	PACKING	AIPC 47-10-83-01-020
10	PACKING	AIPC 47-21-04-01-020
10	PACKING	AIPC 47-21-84-01-020

E. Referenced Information

REFERENCE	DESIGNATION
TASK 20-28-00-869-002-A	Table of the Maximum Permitted Resistance-Values
TASK 20-28-00-912-802-A	Electrical Bonding - General Maintenance Procedure
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 47-31-34-740-001-A	BITE Test of the IGGS with Bleed Air
TASK 47-31-34-740-001-A-01	BITE Test of the IGGS without Bleed Air
TASK 53-35-13-000-002-A	Removal of the Quick-Release Access Panels from the Belly Fairing Structure
TASK 53-35-13-400-002-A	Installation of the Quick-Release Access Panels on the Belly Fairing Structure
Filter Assembly ** ON A/C NOT FOR ALL
Filter Assembly ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 47-10-41-860-053-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Make sure that the aircraft electrical circuits are energized.
(Ref. AMM TASK 24-41-00-861-002).

Subtask 47-10-41-865-054-A ** ON A/C NOT FOR ALL

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	IGGS/CTRL	7YA	N28
** ON A/C NOT FOR ALL
121VU	IGGS/CTRL	7YA	P28
** ON A/C NOT FOR ALL
122VU	CSAS / CTRL	1HW	U17

Subtask 47-10-41-010-052-A ** ON A/C NOT FOR ALL

C. Get Access
(1) Make sure that the access platform ACCESS PLATFORM 2M (6 FT) in position at zones 191 and 192.
(2) Make sure that the quick-release access panel 191BB is removed (Ref. AMM TASK 53-35-13-000-002).

4. Procedure
Subtask 47-10-41-420-051-B ** ON A/C NOT FOR ALL

A. Installation of the Filter Assembly

WARNING: DO NOT GO INTO THE WORK AREA UNTIL A MINIMUM OF 5 MINUTES AFTER YOU REMOVE THE ACCESS PANEL. LET AIR FLOW THROUGH THE WORK AREA. AIR FROM THIS SYSTEM HAS A LOW OXYGEN CONTENT AND CAN CAUSE INJURY OR DEATH.

CAUTION: BE CAREFUL WHEN YOU TOUCH THIS ASSEMBLY. IT HAS PRECISION- TOLERANCE COMPONENTS WITH VERY POLISHED SURFACES. IF YOU ARE NOT CAREFUL, IT IS VERY EASY TO CAUSE DAMAGE TO THESE COMPONENTS (INTERNAL CONTAMINATION, EXTERNAL IMPACT DAMAGE).

CAUTION: REMOVE OR INSTALL PACKING SEALS CAREFULLY. DAMAGE TO SEALS OR SEALING SURFACES CAN CAUSE LEAKAGE AND CORROSION.

(1) Clean the component interfaces and the adjacent area.
(2) Make sure that the parts retained from the removed component are clean and in the correct condition.
(3) Remove the blanking caps from the inlet fitting (7), the outlet fitting (14), the isolation valve outlet and the IGGS pallet inlet.

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

(4) Apply a thin layer of Synthetic Oil base Grease-Fuel and Oxidized Environment Fluorinated - (Material No.03GEE1) to the new AIPC 47-10-03-01-020 PACKING (8) or AIPC 47-10-83-01-020 PACKING (8) and AIPC 47-10-03-01-020 PACKING (13) or AIPC 47-10-83-01-020 PACKING (13).
(5) Install the new packing (8) to the inlet fitting (7).
(6) Install the new packing (13) to the outlet fitting (14).
(7) Apply a thin layer of Synthetic Oil base Grease-Fuel and Oxidized Environment Fluorinated - (Material No.03GEE1) to the new AIPC 47-21-04-01-020 PACKING (10) or AIPC 47-21-84-01-020 PACKING (10) and AIPC 47-10-03-01-020 PACKING (11) or AIPC 47-10-83-01-020 PACKING (11).
(8) Install the new packing (10) on the isolation valve outlet.
(9) Install the new packing (11) on the IGGS pallet inlet.
(10) Install the sleeves on the filter (6):
(a) Pull up the latch pawls of the clamp on the coupling assembly (9) to release the sleeve.
(b) Put the sleeve in position against the inlet fitting (7). Push the sleeve until it is at the bottom of the inlet fitting (7).
(c) Pull up the latch pawls of the clamp on the coupling assembly (12) to release the sleeve.
(d) Put the sleeve in position against the outlet fitting (14). Push the sleeve until it is at the bottom of the outlet fitting (14).
(11) Install the filter (6) on the IGGS pallet:
(a) Carefully put the filter (6) in position on the IGGS pallet.
(b) Support the filter (6) and use the screws (1) and the washers (2) to install it on the IGGS pallet.

NOTE: Install the screws (1) by hand at this step, loosely assembled so the filter (6) can be aligned correctly.

(12) Install the clamp of the coupling assembly (12) to the sleeve:
(a) Move the sleeve across the packing (11) and (13) and install it on the IGGS pallet inlet.

NOTE: Make sure that each packing (11) and (13) is below the sleeve, and that the distance between each packing (11) and (13) and each sleeve end is equal.

(b) Install the clamp on the coupling assembly (12) to the sleeve and engage the latches.
(13) Install the clamp of the coupling assembly (9) to the sleeve:
(a) Move the sleeve across the packing (8) and (10) and install it on the isolation valve outlet.

NOTE: Make sure that each packing (8) and (10) is below the sleeve, and that the distance between each packing (8) and (10) and each sleeve end is equal.

(b) Install the clamp on the coupling assembly (9) to the sleeve and engage the latches.
(14) TORQUE the screws (1) to between 0.85 and 0.66 m.daN (75.22 and 58.41 lbf.in )

.
(15) Prepare for electrical bonding of the screw (3), the washer (4) and the bonding strap (5) (Ref. AMM TASK 20-28-00-912-802).
(16) Install the bonding strap (5) with the screw (3) and the washer (4).
(17) TORQUE the screw (3) to between 0.84 and 0.65 m.daN (74.34 and 57.52 lbf.in )

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

(18) Apply Polysulfide Sealant_General Purpose Brushable - (Material No.06AAA1) to the screw head (3) and the washer (4), and let it dry.
(19) Apply Coating_- Flexible Structure (Material No.04QAB2) to the screw head (3), and let it dry.
(20) Do a check of the maximum bonding value (Ref. AMM TASK 20-28-00-869-002)

between the IGGS pallet and the fuselage primary metal structure.
Make sure that the maximum bonding value is not more than 20 milliohms.

Subtask 47-10-41-790-051-B ** ON A/C NOT FOR ALL

B. Leak Test

NOTE: Do the two subsequent steps at the same time. Two persons are necessary to do these steps.

(1) Do the BITE Test of the IGGS with Bleed Air (Ref. AMM TASK 47-31-34-740-001).
(2) Examine the joints at the inlet fitting (7), the outlet fitting (14), the isolation valve outlet and the IGGS inlet for signs of air leakage.

NOTE: Air Leaks are not permitted.

5. Close-up
Subtask 47-10-41-410-052-A ** ON A/C NOT FOR ALL

A. Close Access
(1) If applicable, install the thermal insulation on the filter assembly.
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Install access panel 191BB (Ref. AMM TASK 53-35-13-400-002).
(4) Remove the access platform(s).

Subtask 47-10-41-410-052-B ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install access panel 191BB (Ref. AMM TASK 53-35-13-400-002).

Subtask 47-10-41-865-055-A ** ON A/C NOT FOR ALL

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	IGGS/CTRL	7YA	N28
** ON A/C NOT FOR ALL
121VU	IGGS/CTRL	7YA	P28
** ON A/C NOT FOR ALL
122VU	CSAS / CTRL	1HW	U17

Subtask 47-10-41-860-054-A ** ON A/C NOT FOR ALL

C. Put the aircraft back to its initial configuration.
(1) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
(2) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(3) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.02 06:26:17 UTC