Servicing of the Engine Pump Case-Drain Filter

TASK 29-13-43-610-040-A
Servicing of the Engine Pump Case-Drain Filter

WARNING: OBEY THE HYDRAULIC SAFETY PROCEDURES.

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.

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: 3084GM ** 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) - ADJUSTABLE
No specific	AR	CONTAINER 5 L (1.32 USGAL)
No specific	AR	WARNING NOTICE(S)

B. Consumable Materials

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

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
195BB, 447AL

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
15	FILTER ELEMENT	AIPC 29-13-43-02-020

E. Referenced Information

REFERENCE	DESIGNATION
TASK 12-12-29-611-001-A	Fill the Hydraulic Fluid Reservoir with a Hand Pump
TASK 29-00-00-280-006-A	Check of the Green or Yellow Hydraulic System after Engine Pump Failure or Operation in a Possible Cavitation Condition - with Ground Cart Available
TASK 29-00-00-280-006-A-01	Check of the Green or Yellow Hydraulic System after Engine Pump Failure or Operation in a Possible Cavitation Condition - Ground Cart not Available
TASK 29-10-00-864-002-A	Depressurize the Yellow Hydraulic System
TASK 29-13-00-710-002-A	Operational Test of the Yellow Hydraulic System
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 71-13-00-010-040-A	Opening of the Fan Cowl Doors
TASK 71-13-00-410-040-A	Closing of the Fan Cowl Doors
Engine Pump Case-Drain Filter

3. Job Set-up
Subtask 29-13-43-860-052-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Depressurize the Yellow hydraulic system (Ref. AMM TASK 29-10-00-864-002).
(2) Depressurize the Yellow hydraulic reservoir (Ref. AMM TASK 29-14-00-614-001).
(3) Put WARNING NOTICE(S) in position to tell persons not to pressurize the Yellow hydraulic system:

on the ground service panel 198CB.

(4) Put WARNING NOTICE(S) on the access door 195BB to tell persons not to pressurize the Yellow hydraulic reservoir.

Subtask 29-13-43-941-053-A ** ON A/C NOT FOR ALL

B. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:

put WARNING NOTICE(S) to tell persons not to start the engine.

(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) Put WARNING NOTICE(S) in position to tell persons not to pressurize the Yellow hydraulic system:

in the cockpit, on the HYD section of the overhead panel 40VU.

(4) On the overhead maintenance panel 50VU:

make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.

(5) Put WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).
(6) Put a CONTAINER 5 L (1.32 USGAL) below the case (5).

Subtask 29-13-43-010-053-A ** ON A/C NOT FOR ALL

C. Get Access
(1) Open the left fan-cowl door 447AL (Ref. AMM TASK 71-13-00-010-040).
(2) Open the access door 195BB.
(3) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position at the engine.

4. Procedure
Subtask 29-13-43-611-051-A ** ON A/C NOT FOR ALL

A. Servicing of the Engine Pump Case-Drain Filter

CAUTION: DO NOT USE A WRENCH TO TIGHTEN THE FILTER BOWL. TIGHTEN IT WITH YOUR HAND ONLY. IF YOU USE A WRENCH YOU CAN CAUSE DAMAGE.

(1) Cut and remove the lockwire between the case (5) and the filter head.
(2) Remove the case (5) with the filter element (15) from the filter head.
(3) Remove and discard the filter element (15) with its packing from the case (5).
(4) Examine the filter element in order to find the causes of contamination.
If you find metal particles in the filter element you must check the associated hydraulic system after operation in the engine pump in possible cavitation condition. (Ref. AMM TASK 29-00-00-280-006)
(5) Apply Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) on the packing supplied with the new filter element (15).
(6) Apply Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) on the threads of the case (5).
(7) If the red clogging indicator is out, push it in to set it again.
(8) Put the AIPC 29-13-43-02-020 FILTER ELEMENT (15) with its packing into the case (5).
(9) Install the case (5) in the filter head and turn clockwise by hand.
(10) Remove the container.

Subtask 29-13-43-710-053-A ** ON A/C NOT FOR ALL

B. Operational Test
(1) Pressurize the Yellow hydraulic reservoir (Ref. AMM TASK 29-14-00-614-002).
(2) Do an operational test of the Yellow hydraulic system (Ref. AMM TASK 29-13-00-710-002).
(3) During the dry motoring of the engine 2, make sure that:

there are no leaks from the case drain filter,
the clogging indicator of the filter is not out.

(4) Stop the dry motoring of the engine 2.
(5) Safety the case (5) with corrosion resistant steel lockwire dia 0.8 mm (0.032 in.).
(6) Make sure that the level of the hydraulic fluid in the Yellow reservoir is correct.
If necessary, fill the reservoir (Ref. AMM TASK 12-12-29-611-001).

5. Close-up
Subtask 29-13-43-410-052-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Remove the WARNING NOTICE(S).
(2) Remove the access platform(s).
(3) Make sure that the work area is clean and clear of tools and other items.
(4) Close the left fan-cowl door 447AL (Ref. AMM TASK 71-13-00-410-040).
(5) Close the door 195BB.

[Rev.10 from 2021] 2026.04.01 04:45:46 UTC