Deactivation of the Case Drain Filter of the Engine Driven Pump of the Green Hydraulic System

TASK 29-10-00-040-001-A
Deactivation of the Case Drain Filter of the Engine Driven Pump of the Green Hydraulic System

WARNING: DO NOT TOUCH THE HYDRAULIC SYSTEM COMPONENTS FOR A SHORT TIME AFTER THE ENGINE IS SHUTDOWN. THE ENGINE COMPONENTS STAY HOT FOR SOME TIME AND CAN CAUSE INJURY.

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.

CAUTION: DO NOT LET HYDRAULIC FLUID FALL ON THE ENGINE. UNWANTED HYDRAULIC FLUID MUST BE REMOVED IMMEDIATELY WITH A CLEAN LINT FREE CLOTH. THE FLUID CAN CAUSE DAMAGE TO THE SURFACE PROTECTION AND TO SOME PARTS.

FIN: 1084GM
Task Summary

Access	Test	Specific Tools	Mhr	E/T	Nb Men
NO	YES	NO	0.7	0.7	1

1. Reason for the Job
MMEL 29-10-09A
HYDRAULIC CASE DRAIN FILTER
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	CONTAINER 2 L (0.53 USGAL)
No specific	1	STEPLADDER 0.5 M (1.6 FT)
No specific	1	WARNING NOTICE(S)

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.02ABA1)	Phosphate Ester Hydraulic Fluid-General Power - -
No specific	lockwire, corrosion-resistant steel, dia. 0.8 mm (0.032 in.)

C. Referenced Information

REFERENCE	DESIGNATION
TASK 12-12-29-611-001-A	Fill the Hydraulic Fluid Reservoir with a Hand Pump
TASK 12-12-29-611-002-A	Fill the Hydraulic Fluid Reservoir with a Hydraulic Service Cart
TASK 27-80-00-866-005-A	Retracting the Slats on the Ground
TASK 29-00-00-864-001-A	Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action
TASK 29-00-00-910-002-A	Safety Procedures of the Hydraulic System
TASK 29-11-43-610-010-A	Servicing of the Engine-Pump Case-Drain Filter
TASK 29-11-43-610-040-A	Servicing of the Engine-Pump Case-Drain Filter
TASK 29-11-43-610-041-A	Servicing the Engine-Pump Case-Drain Filter
TASK 29-11-43-610-802-A	Servicing of the Engine-Pump Case-Drain Filter
TASK 29-14-00-614-001-A	Depressurization of the Hydraulic Reservoirs
TASK 29-14-00-614-002-A	Pressurization of the Hydraulic Reservoirs through the Ground Connector
TASK 29-14-00-614-002-A-01	Pressurization of the Hydraulic Reservoirs with the Auxiliary Power Unit (APU)
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 71-00-00-710-001-A	Dry Motoring Check
TASK 71-00-00-710-001-B	Dry Motoring Check
TASK 71-00-00-710-045-A	Test No.1 : Dry Motor Leak Check
TASK 71-00-00-720-809-A	Test No. 2 - Engine Motor Leak Test (Dry Method)
TASK 71-13-00-010-010-A	Opening of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 71-13-00-010-040-A	Opening of the Fan Cowl Doors
TASK 71-13-00-010-040-B	Opening of the Fan Cowl Doors
TASK 71-13-00-010-802-A	Opening of the Fan Cowl Doors
TASK 71-13-00-410-010-A	Closing of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 71-13-00-410-040-A	Closing of the Fan Cowl Doors
TASK 71-13-00-410-040-B	Closing of the Fan Cowl Doors
TASK 71-13-00-410-802-A	Closing of the Fan Cowl Doors
Case Drain Filters of the Engine Driven Pumps ** ON A/C NOT FOR ALL
Case Drain Filters of the Engine Driven Pumps ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 29-10-00-860-083-A

A. Aircraft Maintenance Configuration

WARNING: OBEY THE HYDRAULIC SAFETY PROCEDURES.

(1) Obey the hydraulic safety procedures (Ref. AMM TASK 29-00-00-910-002).
(2) Put the WARNING NOTICE(S) in position to tell persons not to pressurize the Green hydraulic system:

In the cockpit on the hydraulic section 40VU of the overhead panel
On the ground service panel of the Green hydraulic system.

(3) Make sure that the slats are in the fully retracted position (Ref. AMM TASK 27-80-00-866-005).
(4) Make sure that the Green hydraulic system is depressurized and put it in the maintenance configuration.
(Ref. AMM TASK 29-00-00-864-001).
(5) Disconnect the isolation coupling of the Power Transfer Unit (PTU) (Ref. AMM TASK 29-23-00-860-001).
(6) Depressurize the reservoir of the Green hydraulic system (Ref. AMM TASK 29-14-00-614-001).

Subtask 29-10-00-010-057-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Open the left fan cowl door of the letf (No. 1) engine (Ref. AMM TASK 71-13-00-010-040).
(2) Put the STEPLADDER 0.5 M (1.6 FT) in position below case drain filter 1084GM.

Subtask 29-10-00-010-057-C ** ON A/C NOT FOR ALL

B. Get Access
(1) Open the left fan cowl door of the letf (No. 1) engine (Ref. AMM TASK 71-13-00-010-010).
(2) Put the STEPLADDER 0.5 M (1.6 FT) in position below case drain filter 1084GM.

Subtask 29-10-00-010-057-CM ** ON A/C NOT FOR ALL

B. Get Access
(1) Open the left fan cowl door of the letf (No. 1) engine (Ref. AMM TASK 71-13-00-010-802).
(2) Put the STEPLADDER 0.5 M (1.6 FT) in position below case drain filter 1084GM.

Subtask 29-10-00-941-050-A

C. Put a CONTAINER 2 L (0.53 USGAL) in position under the filter to collect the hydraulic fluid.

4. Procedure
Subtask 29-10-00-040-050-A

A. Deactivation of the Case Drain Filter (1084GM)

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.

(1) Remove and discard the lockwire between the filter bowl (3) and the filter head (1).
(2) Remove the filter bowl (3) together with the filter element (2).

NOTE: You will possibly have to pull the filter element (2) to release it from the filter head (1).

(3) Discard the filter element (2).

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

(4) Clean the filter bowl (3) and apply Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) to its threads.
(5) Install the filter bowl (3) in the filter head (1) and tighten it with your hands.

(6) Safety the filter bowl (3) to the filter head (1) with lockwire, corrosion-resistant steel, dia. 0.8 mm (0.032 in.).
(7) If the red clogging indicator is out, push it in to set it again.

Subtask 29-10-00-860-084-A

B. Preparation for the Test
(1) Make sure that the content of the reservoir of the Green hydraulic system is correct. Add fluid as necessary (Ref. AMM TASK 12-12-29-611-001) or (Ref. AMM TASK 12-12-29-611-002).
(2) Pressurize the reservoir of the Green hydraulic system (Ref. AMM TASK 29-14-00-614-002).
(3) Remove the WARNING NOTICE(S).
(4) Remove the container.

Subtask 29-10-00-710-051-A ** ON A/C NOT FOR ALL

C. Test
(1) Dry-motor the left (No. 1) engine (Ref. AMM TASK 71-00-00-720-809).
(2) Make sure that there are no hydraulic leaks from the filter assembly, and that the clogging indicator stays in.
(3) If there are hydraulic leaks, replace the case drain filter (Ref. AMM TASK 29-11-43-610-802).
(4) If the clogging indicator comes out, push it in to set it again. If it will not stay in, do the trouble-shooting of the filter assembly to find the cause.
(5) Stop the operation of the left (No. 1) engine (Ref. AMM TASK 71-00-00-720-809).

Subtask 29-10-00-710-051-B ** ON A/C NOT FOR ALL

C. Test
(1) Dry-motor the left (No. 1) engine (Ref. AMM TASK 71-00-00-710-001).
(2) Make sure that there are no hydraulic leaks from the filter assembly, and that the clogging indicator stays in.
(3) If there are hydraulic leaks, replace the case drain filter (Ref. AMM TASK 29-11-43-610-040) or (Ref. AMM TASK 29-11-43-610-041).
(4) If the clogging indicator comes out, push it in to set it again. If it will not stay in, do the trouble-shooting of the filter assembly to find the cause.
(5) Stop the operation of the left (No. 1) engine (Ref. AMM TASK 71-00-00-710-001).

Subtask 29-10-00-710-051-C ** ON A/C NOT FOR ALL

C. Test
(1) Dry-motor the left (No. 1) engine (Ref. AMM TASK 71-00-00-710-045).
(2) Make sure that there are no hydraulic leaks from the filter assembly, and that the clogging indicator stays in.
(3) If there are hydraulic leaks, replace the case drain filter (Ref. AMM TASK 29-11-43-610-010).
(4) If the clogging indicator comes out, push it in to set it again. If it will not stay in, do the trouble-shooting of the filter assembly to find the cause.
(5) Stop the operation of the left (No. 1) engine (Ref. AMM TASK 71-00-00-710-045).

5. Close-up
Subtask 29-10-00-410-057-A ** 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) Remove the stepladder.
(3) Close the left fan cowl door of the left (No. 1) engine (Ref. AMM TASK 71-13-00-410-802).
(4) Connect the isolation coupling of the Power Transfer Unit (PTU) (Ref. AMM TASK 29-23-00-860-002).
(5) Make an entry in the logbook.

Subtask 29-10-00-410-057-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) Remove the stepladder.
(3) Close the left fan cowl door of the left (No. 1) engine (Ref. AMM TASK 71-13-00-410-040).
(4) Connect the isolation coupling of the Power Transfer Unit (PTU) (Ref. AMM TASK 29-23-00-860-002).
(5) Make an entry in the logbook.

Subtask 29-10-00-410-057-C ** 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) Remove the stepladder.
(3) Close the left fan cowl door of the left (No. 1) engine (Ref. AMM TASK 71-13-00-410-010).
(4) Connect the isolation coupling of the Power Transfer Unit (PTU) (Ref. AMM TASK 29-23-00-860-002).
(5) Make an entry in the logbook.

[Rev.10 from 2021] 2026.04.01 00:13:51 UTC