Removal of the Solenoid Valve of the Engine Pump

TASK 29-13-51-000-011-A
Removal of the Solenoid Valve of the Engine Pump

WARNING: OBEY THE HYDRAULIC SAFETY PROCEDURES.

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.

WARNING: DO NOT GET HYDRAULIC FLUID ON YOUR SKIN, IN YOUR EYES OR IN YOUR MOUTH. HYDRAULIC FLUID IS POISONOUS AND CAN GO THROUGH YOUR SKIN AND INTO YOUR BODY. FLUSH HYDRAULIC FLUID FROM YOUR EYES, MOUTH OR SKIN WITH WATER. GET MEDICAL AID IF YOU GET HYDRAULIC FLUID IN YOUR EYES OR MOUTH.

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

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: 3030GD ** ON A/C NOT FOR ALL

1. Reason for the Job
This procedure is applicable only on engine pump P/N 887673 or 3031863-001 or 4205400 or 4205401.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	2	CAP - BLANKING
No specific	1	CONTAINER - HYDRAULIC FLUID RESISTANT
No specific	2	COVER - BLANKING, HYDRAULIC RESISTANT
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	AR	WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
195BB, 198CB
FOR [1000EM2] (ENGINE-2)
447AL, 448AR

C. Referenced Information

REFERENCE	DESIGNATION
TASK 29-13-51-000-010-A	Removal of the Engine Pump
TASK 29-13-51-400-010-A	Installation of the Engine Pump
TASK 29-14-00-614-001-A	Depressurization of the Hydraulic Reservoirs
TASK 29-24-00-864-001-A	Depressurize the Yellow Hydraulic System
TASK 71-13-00-010-010-A	Opening of the Fan Cowls 437AL(447AL),438AR(448AR)
Solenoid-Valve of Engine Pump P/N 887673 or 3031863-001
Solenoid-Valve of Engine Pump P/N 4205400 or 4205401

3. Job Set-up
Subtask 29-13-51-860-064-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Depressurize the Yellow hydraulic system
(Ref. AMM TASK 29-24-00-864-001).
(2) Depressurize the reservoir of the Yellow hydraulic system.
(Ref. AMM TASK 29-14-00-614-001).
(3) Open the ground service panel 198CB.
(4) Put a WARNING NOTICE(S) in position to tell persons not to pressurize the Yellow hydraulic system:

On the ground service panel 198CB.

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

Subtask 29-13-51-941-058-A ** ON A/C NOT FOR ALL

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

Put a WARNING NOTICE(S) in position 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 a 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).

Subtask 29-13-51-010-055-A ** ON A/C NOT FOR ALL

C. Get Access
(1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-010):
(a) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Put a CONTAINER - HYDRAULIC FLUID RESISTANT in position below the hydraulic pump to collect the fluid.

Subtask 29-13-51-865-059-A ** ON A/C NOT FOR ALL

D. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
121VU	HYDRAULIC/Y HYD/PUMP ENG2/CTL	3701GD	Q36

4. Procedure
Subtask 29-13-51-020-054-A ** ON A/C NOT FOR ALL

A. Removal of the Solenoid-Valve of Engine Pump P/N 887673 or 3031863-001

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.

(1) Disconnect the electrical connector (2) from the solenoid valve (3).
(2) Put a CAP - BLANKING on the disconnected electrical connector (2) and the electrical receptacle.
(3) Safety the electrical harness.
(4) Clean the component interface and/or the adjacent area to make sure that no contamination goes into the bore.
(5) Remove the bolts (1).
(6) Removal of the solenoid valve (3)

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) Hold the solenoid valve (3) in the vertical position to the mounting surface and pull it out from the engine pump.
(7) Put a COVER - BLANKING, HYDRAULIC RESISTANT on the open port of the engine pump.
(8) Make sure that the packings and the backup rings are on the removed solenoid valve (3):

If not, replace the engine pump (Ref. AMM TASK 29-13-51-000-010) and (Ref. AMM TASK 29-13-51-400-010).

Subtask 29-13-51-020-067-A ** ON A/C NOT FOR ALL

B. Removal of the Solenoid-Valve of Engine Pump P/N 4205400 or 4205401

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.

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.

(a) Cut, remove and discard the lockwire from the bolts (1).
(5) Clean the component interface and/or the adjacent area to make sure that no contamination goes into the bore.
(6) Remove the two bolts (1).
(7) Removal of the solenoid valve (3)

CAUTION: WHEN YOU REMOVE OR INSTALL THE SOLENOID VALVE, DO NOT LET PARTS OF THE VALVE FALL INTO THE ENGINE PUMP. IF YOU DO NOT OBEY THIS INSTRUCTION, YOU CAN CAUSE DAMAGE TO THE ENGINE PUMP.

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) Hold the solenoid valve (3) in the vertical position on the mounting surface and pull it out from the engine pump (7).
(8) Put a COVER - BLANKING, HYDRAULIC RESISTANT on the open port of the engine pump (7).
(9) Make sure that the packing (5) and the two backup rings (4) and (6) are in position on the removed solenoid valve (3):

If not, replace the engine pump (Ref. AMM TASK 29-13-51-000-010) and (Ref. AMM TASK 29-13-51-400-010).

[Rev.10 from 2021] 2026.04.01 00:23:37 UTC