Installation of the Solenoid Valve of the Yellow Engine Driven Pump

TASK 29-13-51-400-808-A
Installation of the Solenoid Valve of the Yellow Engine Driven Pump

WARNING: OBEY THE HYDRAULIC SAFETY PROCEDURES.

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: YOU MUST NOT GET HYDRAULIC FLUID ON YOUR SKIN, IN YOUR EYES OR IN YOUR MOUTH. THE HYDRAULIC FLUID IS POISONOUS AND CAN BE ABSORBED INTO YOUR BODY. IF YOU ACCIDENTALLY GET HYDRAULIC FLUID IN YOUR EYES, MOUTH OR ON YOUR SKIN, FLUSH WITH WATER AND GET MEDICAL AID.

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

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

ZONE: 440

1. Reason for the Job
This procedure is applicable only on engine pumps P/N 3031863-001 and P/N 3031863-002.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	CONTAINER 5 L (1.32 USGAL)
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 50 and 40 lbf.in (0.57 and 0.45 m.daN )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.02ABA1)	Phosphate Ester Hydraulic Fluid-General Power - -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
440	ENG 2 AIR INTAKE, FAN AND ACCESS GEARBOX
195BB, 198CB
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR, 462AR

D. 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 29-10-00-710-004-A	Operational Check of EDP Depressurization
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 29-30-00-200-002-A	Check of the Reservoir Quantity Indication on the ECAM Display Unit
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
TASK 71-51-40-400-801-A	Installation of the IDG-EDP-MON Harness
TASK 78-30-00-040-805-A	Deactivation of the Thrust Reverser System for Ground Maintenance
TASK 78-30-00-440-805-A	Reactivation of the Thrust Reverser System after Ground Maintenance
TASK 78-36-00-010-802-A	Opening of the Thrust Reverser Cowl-Doors
TASK 78-36-00-410-802-A	Closing of the Thrust Reverser Cowl-Doors
Solenoid Valve of the Engine Pumps P/N 3031863-001 and P/N 3031863-002

3. Job Set-up
Subtask 29-13-51-860-090-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 29-13-51-941-076-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 29-13-51-865-088-A ** ON A/C NOT FOR ALL

C. 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	HYDRAULIC/Y HYD/PUMP ENG2/MONG	3700GD	Q37
121VU	HYDRAULIC/Y HYD/PUMP ENG2/CTL	3701GD	Q36

Subtask 29-13-51-010-075-A ** ON A/C NOT FOR ALL

D. 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

Subtask 29-13-51-040-058-A ** ON A/C NOT FOR ALL

E. Deactivation of the Thrust Reverser System for Maintenance

WARNING: YOU MUST DEACTIVATE THE THRUST REVERSER BEFORE YOU DO WORK ON OR AROUND IT. IF YOU DO NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE AN INJURY AND/OR DAMAGE.

(1) Make sure that you did the deactivation of the thrust reverser system for maintenance (Ref. AMM TASK 78-30-00-040-805).

Subtask 29-13-51-010-076-A ** ON A/C NOT FOR ALL

F. Get Access
(1) Make sure that the right thrust-reverser cowl-door is open (Ref. AMM TASK 78-36-00-010-802):
(a) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
462AR

4. Procedure
Subtask 29-13-51-420-076-A ** ON A/C NOT FOR ALL

A. Installation of the Solenoid Valve of the Engine Pumps P/N 3031863-001 and P/N 3031863-002
(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Remove the shipping cover from the new solenoid valve (4).
(4) Make sure that the packings and the backup rings are correctly installed in the solenoid valve grooves.
(5) Lightly lubricate the packings and the backup rings of the solenoid valve (4) with Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) .
(6) Remove the COVER - BLANKING, HYDRAULIC RESISTANT from the port of the engine pump (1).
(7) Installation of the solenoid valve (4) to the engine pump (1)

CAUTION: MAKE SURE THAT THERE ARE NO LIQUIDS, DUST OR CONTAMINANTS ON THE MOUNTING SURFACE. IF YOU DO NOT OBEY THIS INSTRUCTION, DAMAGE TO THE EQUIPMENT CAN OCCUR.

(a) Make sure that a CONTAINER 5 L (1.32 USGAL) is in position below the engine pump (1).
(b) Carefully put the solenoid valve (4) in the vertical position to the mounting surface and move it down into the pump bore.
(c) Make sure that you do not cause damage to the packings and the backup rings during the installation.
(d) Carefully turn the solenoid valve (4) to align the mounting hole with the bolt holes in the engine pump (1).
(8) Install the bolts (3).
(9) TORQUE the bolts (3) to between 50 and 40 lbf.in (0.57 and 0.45 m.daN )

.
(10) Connection of the IDG-EDP-MON harness (3030GD-A)

CAUTION: DO NOT TWIST OR BEND THE ELECTRICAL HARNESS WHEN YOU DISCONNECT/CONNECT THE ELECTRICAL CONNECTOR. IF YOU DO, YOU CAN CAUSE DAMAGE TO THE HARNESS AND THUS CAUSE ELECTRICAL CIRCUIT DEFECTS.

CAUTION: MAKE SURE THAT THE ELECTRICAL CONNECTORS ARE CLEAN BEFORE YOU CONNECT THEM. SOLID AND/OR LIQUID CONTAMINATION CAN CAUSE DAMAGE TO THE COMPONENTS.

(a) Remove the CAP - BLANKING from the IDG-EDP-MON harness (2).
(b) Make sure that the IDG-EDP-MON harness (2) is clean and in the correct condition.
(c) Connect the IDG-EDP-MON harness (2) to the solenoid valve (4) (Ref. AMM TASK 71-51-40-400-801).

Subtask 29-13-51-420-076-B ** ON A/C NOT FOR ALL

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

(a) Lightly lubricate the packings and the backup rings of the solenoid valve (4) with Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) .
(6) Remove the COVER - BLANKING, HYDRAULIC RESISTANT from the port of the engine pump (1).
(7) Installation of the solenoid valve (4) to the engine pump (1)

CAUTION: MAKE SURE THAT THERE ARE NO LIQUIDS, DUST OR CONTAMINANTS ON THE MOUNTING SURFACE. IF YOU DO NOT OBEY THIS INSTRUCTION, DAMAGE TO THE EQUIPMENT CAN OCCUR.

.
(10) Connection of the IDG-EDP-MON harness (3030GD-A)

CAUTION: DO NOT TWIST OR BEND THE ELECTRICAL HARNESS WHEN YOU DISCONNECT/CONNECT THE ELECTRICAL CONNECTOR. IF YOU DO, YOU CAN CAUSE DAMAGE TO THE HARNESS AND THUS CAUSE ELECTRICAL CIRCUIT DEFECTS.

CAUTION: MAKE SURE THAT THE ELECTRICAL CONNECTORS ARE CLEAN BEFORE YOU CONNECT THEM. SOLID AND/OR LIQUID CONTAMINATION CAN CAUSE DAMAGE TO THE COMPONENTS.

Subtask 29-13-51-865-089-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	HYDRAULIC/Y HYD/PUMP ENG2/MONG	3700GD	Q37
121VU	HYDRAULIC/Y HYD/PUMP ENG2/CTL	3701GD	Q36

Subtask 29-13-51-710-069-A ** ON A/C NOT FOR ALL

C. Test(s)
(1) Do a check of the reservoir fluid level (Ref. AMM TASK 29-30-00-200-002). Fill the reservoir, if necessary (Ref. AMM TASK 12-12-29-611-001) or (Ref. AMM TASK 12-12-29-611-002).
(2) Do the operational test of the engine pump depressurization (Ref. AMM TASK 29-10-00-710-004).
(a) Make sure that there is no leakage from the solenoid valve interface.
(3) Do a check of the reservoir fluid level again (Ref. AMM TASK 29-30-00-200-002). Fill the reservoir, if necessary (Ref. AMM TASK 12-12-29-611-001) or (Ref. AMM TASK 12-12-29-611-002).

5. Close-up
Subtask 29-13-51-410-069-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) Close the right thrust-reverser cowl-door (Ref. AMM TASK 78-36-00-410-802):
(a) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
462AR

Subtask 29-13-51-440-054-A ** ON A/C NOT FOR ALL

B. Do the reactivation of the thrust reverser system after maintenance (Ref. AMM TASK 78-30-00-440-805).

Subtask 29-13-51-410-070-A ** ON A/C NOT FOR ALL

C. 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 container.
(4) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.01 00:23:44 UTC