Installation of the Pilot Valves of the Leakage-Measurement Solenoid Valves

TASK 29-19-51-400-004-A
Installation of the Pilot Valves of the Leakage-Measurement Solenoid Valves

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 Green High-Pressure Manifold P/N D29070171 series.
This task is applicable for Aircraft with the Blue High-Pressure Manifold P/ N D29070173 series.
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 Green High-Pressure Manifold P/N 1559A9900 series.
This task is not applicable for Aircraft with the Blue High-Pressure Manifold P/N 1554A9900 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 - HYDRAULIC FLUID RESISTANT
No specific	Torque wrench: range to between 0.44 and 0.36 m.daN (38.94 and 31.86 lbf.in )
FOR [1150GP]
No specific	1	ACCESS PLATFORM 3M (10 FT)
No specific	2	WARNING NOTICE(S)
FOR [2150GP]
No specific	2	WARNING NOTICE(S)
FOR [3150GP]
No specific	2	WARNING NOTICE(S)

B. Consumable Materials

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

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [2150GP]
195BB
FOR [3150GP]
196BB

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
4	PACKINGS	AIPC 29-19-51-01-020
4	PACKINGS	AIPC 29-19-51-02-020
4	PACKINGS	AIPC 29-19-51-03-020

E. Referenced Information

REFERENCE	DESIGNATION
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 29-00-00-910-002-A	Safety Procedures of the Hydraulic System
TASK 29-10-00-863-001-A	Pressurize the Green Hydraulic System with a Hydraulic Ground Power-Cart
TASK 29-10-00-863-002-A	Pressurize the Yellow Hydraulic System with a Hydraulic Ground Power-Cart
TASK 29-10-00-863-003-A	Pressurize the Blue Hydraulic System with a Hydraulic Ground Power-Cart
TASK 29-10-00-863-003-A-01	Pressurize the Blue Hydraulic System with the Blue Electric Pump
TASK 29-10-00-864-001-A	Depressurize the Green Hydraulic System
TASK 29-10-00-864-002-A	Depressurize the Yellow Hydraulic System
TASK 29-10-00-864-003-A	Depressurize the Blue Hydraulic System
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 29-23-00-860-002-A	Connection of the Isolation Coupling of the Power Transfer Unit (PTU)
TASK 29-23-00-863-001-A	Pressurize the Green Hydraulic System from the Yellow Hydraulic System through the PTU with the Electric Pump
TASK 31-60-00-860-001-A	EIS Start Procedure
TASK 31-60-00-860-002-A	EIS Stop Procedure
Pilot Valves of the Green and Yellow Hydraulic System
Pilot Valve of the Blue Hydraulic System
FOR [1150GP]
TASK 29-00-00-864-001-A	Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action
TASK 29-14-00-614-001-A	Depressurization of the Hydraulic Reservoirs
TASK 29-23-00-860-001-A	Disconnection of the Isolation Coupling of the Power Transfer Unit (PTU)
TASK 32-12-00-410-001-A	Close the Main Gear Doors after Access
FOR [2150GP]
TASK 29-00-00-864-001-A	Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action
TASK 29-14-00-614-001-A	Depressurization of the Hydraulic Reservoirs
FOR [3150GP]
TASK 29-00-00-864-001-A	Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action
TASK 29-14-00-614-001-A	Depressurization of the Hydraulic Reservoirs

3. Job Set-up
Subtask 29-19-51-860-057-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 CONTAINER - HYDRAULIC FLUID RESISTANT is in position below the replacement pilot valve.
(3) FOR [1150GP]
(a) Make sure that the Green hydraulic system is depressurized and put it in the maintenance configuration (Ref. AMM TASK 29-00-00-864-001).
(b) Make sure that the reservoir of the Green hydraulic system is depressurized (Ref. AMM TASK 29-14-00-614-001).
(c) Make sure that the isolation coupling of the Power Transfer Unit (PTU) is disconnected (Ref. AMM TASK 29-23-00-860-001).
(d) Make sure that one MLG door is open.
(e) Make sure that the ACCESS PLATFORM 3M (10 FT) is in position.
(f) Make sure that the WARNING NOTICE(S) are 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.

(4) FOR [2150GP]
(a) Make sure that the Blue hydraulic system is depressurized and put it in the maintenance configuration (Ref. AMM TASK 29-00-00-864-001).
(b) Make sure that the reservoir of the Blue hydraulic system is depressurized (Ref. AMM TASK 29-14-00-614-001).
(c) Make sure that the access panel 195BB is open.
(d) Make sure that the WARNING NOTICE(S) are in position to tell persons not to pressurize the Blue hydraulic system:

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

(5) FOR [3150GP]
(a) Make sure that the Yellow hydraulic system is depressurized and put it in the maintenance configuration (Ref. AMM TASK 29-00-00-864-001).
(b) Make sure that the reservoir of the Yellow hydraulic system is depressurized (Ref. AMM TASK 29-14-00-614-001).
(c) Make sure that the access panel 196BB is open.
(d) 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.

Subtask 29-19-51-865-060-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 29-19-51-420-054-A

A. Installation of the Pilot Valve
(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Lubricate the new packings (4) with Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) .
(4) Remove the blanking plugs from the open ports.
(5) Install the new packings (4):
(a) Put the new AIPC 29-19-51-01-020 PACKINGS (4) in position on the leakage-measurement solenoid valve 1150GP (5).
(b) Put the new AIPC 29-19-51-02-020 PACKINGS (4) in position on the leakage-measurement solenoid valve 2150GP (5).
(c) Put the new AIPC 29-19-51-03-020 PACKINGS (4) in position on the leakage-measurement solenoid valve 3150GP (5).
(6) Put the pilot valve (3) in position on the leakage-measurement solenoid valve (5).
(7) Attach the pilot valve (3) with the bolts (1), the washer (2) and the bonding strap (7) (Ref. AMM TASK 20-28-00-912-802).
(8) TORQUE the bolts (1) to between 0.44 and 0.36 m.daN (38.94 and 31.86 lbf.in )

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.

(9) Safety the bolts (1) with lockwire, corrosion resistant steel dia 0.8mm (0.032 in.).
(10) Remove the blanking caps from the electrical connector (6) and from the receptacle.
(11) 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).

(12) Connect the electrical connector (6) to the pilot valve.
(13) Remove the warning notices from the ground service panel and from the hydraulic section 40VU on the overhead panel in the cockpit.

Subtask 29-19-51-865-061-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 29-19-51-710-053-A

C. Do the Operational Test of the Solenoid Valve 1150GP
(1) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
(2) Pressurize the reservoir of the Green hydraulic system (Ref. AMM TASK 29-14-00-614-002).
(3) Pressurize the Green hydraulic system (Ref. AMM TASK 29-10-00-863-001) or (Ref. AMM TASK 29-23-00-863-001).
(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/G pushbutton switch (P/BSW) 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 change to amber.
3.On the overhead panel 50VU: Lift the guard and set the HYD/LEAK MEASUREMENT VALVE/G P/BSW 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. NOTE: When you set the P/BSW to on, the ECAM lower DU can change to the ELEC page. Also the single chime audio warning and MASTER CAUT light operate. You can ignore these indications. Cancel the MASTER CAUT light and set the HYD page on the ECAM lower DU to find the hydraulic indications.

(7) Depressurize the Green hydraulic system (Ref. AMM TASK 29-10-00-864-001).
(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).

Subtask 29-19-51-710-054-A

D. Do the Operational Test of the Solenoid Valve 2150GP
(1) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
(2) Pressurize the reservoir of the Blue hydraulic system (Ref. AMM TASK 29-14-00-614-002).
(3) Pressurize the Blue hydraulic system (Ref. AMM TASK 29-10-00-863-003).
(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 / B 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 the system arrow change to amber.
3.On the overhead panel 50VU: Lift the guard and set the HYD/LEAK MEASUREMENT VALVE / B 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 Blue hydraulic system
(Ref. AMM TASK 29-10-00-864-003).
(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).

Subtask 29-19-51-710-055-A

E. 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 29-19-51-860-058-A

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

Subtask 29-19-51-410-053-A

B. Close Access
(1) Make sure that the work area is clean and clear of tool(s) and other items.
(2) FOR [1150GP]
(a) Close the main door of the main gear (Ref. AMM TASK 32-12-00-410-001).
(b) Remove the access platform.
(3) FOR [2150GP]
(a) Close the access panel 195BB.
(4) FOR [3150GP]
(a) Close the access panel 196BB.

[Rev.10 from 2021] 2026.04.01 00:25:45 UTC