Installation of the Engine-Pump Case-Drain Filter Assembly

TASK 29-13-43-400-803-A
Installation of the Engine-Pump Case-Drain Filter Assembly

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

WARNING: WEAR APPLICABLE PERSONAL PROTECTIVE EQUIPMENT (PPE) WHEN YOU DO THIS TASK. BEFORE YOU USE PPE, READ, UNDERSTAND AND OBEY ALL INSTRUCTIONS FOR ITS USE. THESE INSTRUCTIONS INCLUDE INSTRUCTIONS FROM THE MANUFACTURER, YOUR EMPLOYER AND GOVERNMENT REGULATIONS. YOU CAN GET INJURED IF YOU DO NOT USE PPE. GET INSTRUCTIONS FROM YOUR EMPLOYER ON WHICH PPE IS NECESSARY.

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AFTER SHUTDOWN. THE ENGINE CAN STAY HOT FOR A LONG TIME. IF YOU DO NOT OBEY THIS INSTRUCTION, INJURY CAN OCCUR.

WARNING: OBEY THE HYDRAULIC SAFETY PROCEDURES.

ZONE: 445
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 1M (3 FT)-ADJUSTABLE
No specific	1	CONTAINER 5 L (1.32 USGAL)
No specific	AR	COVER - PROTECTION
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 35 and 31.5 lbf.in (0.40 and 0.36 m.daN )
No specific	Torque wrench: range to between 90 and 81 lbf.in (1.02 and 0.92 m.daN )
No specific	Torque wrench: range to between 164.62 and 154.89 lbf.in (1.86 and 1.75 m.daN )
No specific	Torque wrench: range to between 245 and 215 lbf.in (2.77 and 2.43 m.daN )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.PU2-0001)	alcohol, isopropyl
(Material No.PU4-0002)	epoxy primer, fluid resistant
(Material No.PU4-0004)	curing solution, epoxy primer
(Material No.PU4-0005)	thinner
(Material No.PU4-0008)	thinner
(Material No.PU6-0003)	lubricant
(Material No.02ABA1)	Phosphate Ester Hydraulic Fluid-General Power - -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
445	FAN AND ACCESSORY GEARBOX
195BB, 198CB
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
2	PACKING	EIPC 29-11-86-20-230

E. Referenced Information

REFERENCE	DESIGNATION
TASK 20-23-22-910-001-A	Marking of the Unions after Application of Standard or Specific Tightening Torque
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 71-00-00-860-833-A	Procedure to Prevent Engine Motoring
TASK 71-13-00-010-802-A	Opening of the Fan Cowl Doors
TASK 71-13-00-410-802-A	Closing of the Fan Cowl Doors
Engine-Pump Case-Drain Filter Assembly

3. Job Set-up
Subtask 29-13-43-860-069-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Make sure that the Yellow hydraulic system is depressurized.
(Ref. AMM TASK 29-10-00-864-002)
(2) Make sure that the reservoir of the Yellow hydraulic system is depressurized.
(Ref. AMM TASK 29-14-00-614-001)

Subtask 29-13-43-941-068-A ** ON A/C NOT FOR ALL

B. Safety Precautions
(1) On AIR COND panel 30VU:

Make sure that the APU BLEED pushbutton switch is released (the ON legend is off).
Make sure that a WARNING NOTICE(S) is in position to tell persons not to operate this pushbutton switch.

(2) Make sure that a WARNING NOTICE(S) is in position to tell persons not to pressurize the Yellow hydraulic system:

On the HYD section of panel 40VU
On access door 198CB, on the ground-service panel of the Yellow hydraulic system.

(3) Make sure that a WARNING NOTICE(S) is in position on access door 195BB to tell persons not to pressurize the reservoir of the Yellow hydraulic system.
(4) Make sure that you did the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833).

Subtask 29-13-43-010-065-A ** ON A/C NOT FOR ALL

C. Get Access
(1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-802):
(a) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
(2) Put an ACCESS PLATFORM 1M (3 FT)-ADJUSTABLE in position at the engine.

4. Procedure
Subtask 29-13-43-420-058-A ** ON A/C NOT FOR ALL

A. Installation of the Case-Drain Filter Assembly

CAUTION: HYDRAULIC FLUID CAN CAUSE DAMAGE TO EQUIPMENT. IF HYDRAULIC FLUID FALLS ON A SURFACE, IMMEDIATELY CLEAN THE SURFACE WITH A CLEAN CLOTH.

CAUTION: USE TWO WRENCHES TO REMOVE OR INSTALL THE TUBE COUPLING NUTS:

ONE WRENCH TO HOLD THE UNION, AND
ONE TO LOOSEN OR TIGHTEN THE COUPLING NUT.

THIS PREVENTS DAMAGE TO THE PARTS.

CAUTION: WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.

(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Make sure that the hydraulic line end-fittings are serviceable.
(4) Make sure that a CONTAINER 5 L (1.32 USGAL) is in position below the filter assembly (1).
(5) Removal of the protection covers

CAUTION: REMOVE THE PROTECTION COVERS FROM THE OPENINGS AS NECESSARY TO PREVENT ENGINE DAMAGE.

(a) Make sure that you remove all the necessary COVER - PROTECTION to prevent damage to the engine.
(6) Mix the PU4-0002epoxy primer, fluid resistant, PU4-0004curing solution, epoxy primer and thinner (Material No.PU4-0005) or thinner (Material No.PU4-0008) . Refer to the instructions of the manufacturer.
(7) Attach the hydraulic filter assembly (1) to the filter case drain bracket with the four bolts (7) and the four washers (6). Wet-install the four bolts (7) with PU4-0002epoxy primer, fluid resistant mixture.
(8) TORQUE the bolts (7) to between 90 and 81 lbf.in (1.02 and 0.92 m.daN )

.
(9) Remove the unwanted epoxy primer with a clean Textile-Lint free Cotton - (Material No.14SBA1) and PU2-0001alcohol, isopropyl.
(10) Apply a thin layer of lubricant (Material No.PU6-0003) or Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) or equivalent to the new EIPC 29-11-86-20-230 PACKING (2) and to the threads of the unions (3).
(11) Apply a thin layer of lubricant (Material No.PU6-0003) or Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) or equivalent to the threads of the couplings on the pylon fan case drain tube and filter fan case drain tube.
(12) Apply a thin layer of lubricant (Material No.PU6-0003) or Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) or equivalent to the threads of the ports on the filter assembly (1).
(13) Put the new packings (2) on the unions (3) and install the unions (3) in the two ports of the filter assembly (1).
(14) TORQUE the unions (3) to between 164.62 and 154.89 lbf.in (1.86 and 1.75 m.daN )

.
(15) Connect the pylon fan case drain tube to the union (3) on the filter assembly (1).
(a) Use a second wrench to hold the union on the filter assembly when you tighten the coupling nut on the hose/tube.
(16) TORQUE the coupling on the pylon fan case drain tube to between 245 and 215 lbf.in (2.77 and 2.43 m.daN )

.
(17) Connect the filter fan case tube to the union (3) of the filter assembly (1).
(a) Use a second wrench to hold the union on the filter assembly when you tighten the coupling nut on the hose/tube.
(18) TORQUE the coupling on the filter fan case tube to between 245 and 215 lbf.in (2.77 and 2.43 m.daN )

.
(19) Attach the filter fan case tube and the clamp to the filter case drain bracket. Use the bolt (5) and the washer (4).
(20) Attach the pylon fan case drain tube and the clamp to the case drain bracket above the hydraulic filter assembly (1). Use the bolt (5) and washer (4).
(21) TORQUE the bolts (5) to between 35 and 31.5 lbf.in (0.40 and 0.36 m.daN )

.
(22) Identify the tightened union nuts with a red line
(Ref. AMM TASK 20-23-22-910-001).

Subtask 29-13-43-420-058-B ** ON A/C NOT FOR ALL

A. Installation of the Case-Drain Filter Assembly

CAUTION: HYDRAULIC FLUID CAN CAUSE DAMAGE TO EQUIPMENT. IF HYDRAULIC FLUID FALLS ON A SURFACE, IMMEDIATELY CLEAN THE SURFACE WITH A CLEAN CLOTH.

CAUTION: USE TWO WRENCHES TO REMOVE OR INSTALL THE TUBE COUPLING NUTS:

ONE WRENCH TO HOLD THE UNION, AND
ONE TO LOOSEN OR TIGHTEN THE COUPLING NUT.

THIS PREVENTS DAMAGE TO THE PARTS.

CAUTION: WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.

CAUTION: DO NOT USE HIGH-DENSITY FLUID SKYDROL 500B-4 FOR A320NEO FAMILY. THE FLUID CAN CAUSE DAMAGE TO THE HYDRAULIC SYSTEM COMPONENTS.

(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Make sure that the hydraulic line end-fittings are serviceable.
(4) Make sure that the CONTAINER 5 L (1.32 USGAL) is in position below the filter assembly (1).
(5) Removal of the protection covers

CAUTION: REMOVE THE PROTECTION COVERS FROM THE OPENINGS AS NECESSARY TO PREVENT ENGINE DAMAGE.

.
(22) Identify the tightened union nuts with a red line
(Ref. AMM TASK 20-23-22-910-001).

Subtask 29-13-43-710-059-A ** ON A/C NOT FOR ALL

B. Operational Test
(1) Do an operational test of the Yellow hydraulic system (Ref. AMM TASK 29-13-00-710-002).
(2) After the dry motoring, make sure that there were no leak from the case drain filter assembly (1) or from hydraulic connections.

5. Close-up
Subtask 29-13-43-942-060-A ** ON A/C NOT FOR ALL

A. Remove the safety precautions
(1) Remove the container.
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Remove the WARNING NOTICE(S).

Subtask 29-13-43-410-063-A ** ON A/C NOT FOR ALL

B. Close Access
(1) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-802):
(a) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
(2) Close access doors 198CB and 195BB.
(3) Remove the access platform(s).

[Rev.10 from 2021] 2026.04.01 07:52:56 UTC