Installation of the Yellow Leakage-Measurement Solenoid-Valve

TASK 29-19-51-400-003-A
Installation of the Yellow Leakage-Measurement Solenoid-Valve

WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.

WARNING: MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR. THIS WILL PREVENT UNWANTED MOVEMENT OF THE LANDING GEAR, AND THUS POSSIBLE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.

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

1. Reason for the Job
This task is applicable for Aircraft with the Yellow High-Pressure Manifold P/N D29070171 series.
This task is not applicable for Aircraft with the Yellow High-Pressure Manifold P/N 1553A9900 series.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	CONTAINER 1 L (1/4 USGAL)
No specific	2	WARNING NOTICE(S)
No specific	Torque wrench: range to between 1.06 and 0.82 m.daN (93.81 and 72.57 lbf.in )

B. Consumable Materials

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

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
196BB

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
18	O-RING	AIPC 29-13-14-02-220
9	BACK-UP RING	AIPC 29-13-14-02-230
17	BACK-UP RING	AIPC 29-13-14-02-240
16	SQUARE-SECTION SEAL	AIPC 29-13-14-02-250
19	O-RINGS	AIPC 29-13-14-02-270
12	BACK-UP RINGS	AIPC 29-13-14-02-280
20	BACK-UP RINGS	AIPC 29-13-14-02-290
21	SQUARE-SECTION SEALS	AIPC 29-13-14-02-300

E. Referenced Information

REFERENCE	DESIGNATION
TASK 20-23-21-911-001-A	Removal/Installation of the Bobbins from their Housings and Installation of O-rings, Square Seals, and Back-up Rings on the Bobbins
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 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 29-10-00-863-002-A	Pressurize the Yellow Hydraulic System with a Hydraulic Ground Power-Cart
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 29-14-00-614-002-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 31-60-00-860-001-A	EIS Start Procedure
TASK 31-60-00-860-002-A	EIS Stop Procedure
Leakage Measurement Solenoid Valve

3. Job Set-up
Subtask 29-19-51-860-061-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) Make sure that the Yellow hydraulic system is depressurized and put it in the maintenance configuration.
(Ref. AMM TASK 29-00-00-864-001).
(3) Make sure that the reservoir of the Yellow hydraulic system is depressurized.
(Ref. AMM TASK 29-14-00-614-001).
(4) Make sure that the WARNING NOTICE(S) are in position to tell persons not to pressurize the Yellow hydraulic system:

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

(5) Make sure that the access door 196BB is open.
(6) Make sure that the CONTAINER 1 L (1/4 USGAL) is in position below the HP manifold.
(7) Make sure that the isolation coupling of the Power Transfer Unit (PTU) is disconnected (Ref. AMM TASK 29-23-00-860-001).

Subtask 29-19-51-865-057-A

B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
121VU	HYDRAULIC/SOL VALVES/G/Y/B/LEAK/TST	1881GP	N35

4. Procedure
Subtask 29-19-51-420-052-A

A. Installation of the Solenoid Valve 3150GP
(1) Make sure that the parts retained from the removed component are clean and in the correct condition.
(2) Clean the component interfaces and the adjacent area.
(3) Do an inspection of the component interfaces and the adjacent area.
(4) Lubricate the new:

Back-up rings (20), (12), (17) and (9)
O-rings (18) and (19)
Square-section seals (16) and (21) with Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) .

.
(19) Install the bonding strap (5) together with the bolt (4), the washer (3) and the nut (2) (Ref. AMM TASK 20-28-00-912-802).
(20) Remove the blanking caps from the electrical connector (1) and from the receptacle.
(21) Make sure that all the electrical connections are clean and in the correct condition.

CAUTION: MAKE SURE THAT THE BONDING STRAP(S) IS(ARE) CONNECTED BEFORE YOU CONNECT THE ELECTRICAL CONNECTOR(S).

(22) Connect the electrical connector (1).
(23) Remove the warning notices from the ground service panel of the Yellow hydraulic system and from the overhead panel.

Subtask 29-19-51-865-058-A

B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
121VU	HYDRAULIC/SOL VALVES/G/Y/B/LEAK/TST	1881GP	N35

Subtask 29-19-51-710-052-A

C. Operational Test of the Solenoid Valve 3150GP
(1) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
(2) Pressurize the reservoir of the Yellow hydraulic system (Ref. AMM TASK 29-14-00-614-002).
(3) Pressurize the Yellow hydraulic system (Ref. AMM TASK 29-10-00-863-002).
(4) Examine the solenoid valve connection and make sure that there are no leaks.
(5) Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
(Ref. AMM TASK 31-60-00-860-001).
(6) Do this Test:

ACTION	RESULT
1.On the ECAM control panel on the center pedestal: Push the HYD pushbutton.	On the ECAM lower DU: The HYD page is shown.
2.On the overhead panel 50VU: Lift the guard and set the HYD/LEAK MEASUREMENT VALVE / Y pushbutton switch to OFF (the OFF light comes on).	In less than 15 s on the ECAM lower DU: The color of the system name and system arrow changes to amber.
3.On the overhead panel 50VU: Lift the guard and set the HYD/LEAK MEASUREMENT VALVE / Y pushbutton switch to on (the OFF light goes off).	On the ECAM lower DU: The color of the system name changes to white. The color of the system arrow changes to green.

(7) Depressurize the Yellow hydraulic system (Ref. AMM TASK 29-10-00-864-002).
(8) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002).
(9) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).

5. Close-up
Subtask 29-19-51-860-053-A

A. Put the system back to the serviceable condition.
(1) Remove the container.
(2) Connect the isolation coupling of the Power Transfer Unit (PTU) (Ref. AMM TASK 29-23-00-860-002).

Subtask 29-19-51-410-052-A

B. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the access panel 196BB.

[Rev.10 from 2021] 2026.04.01 00:25:43 UTC