Operational Check of Crossfeed Valve Using Individual Motors and Check Fuel Flow in "Open" and Fuel Shut Off in "Closed" Positions

TASK 28-23-00-720-001-A
Operational Check of Crossfeed Valve Using Individual Motors and Check Fuel Flow in "Open" and Fuel Shut Off in "Closed" Positions

WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:

THE FLIGHT CONTROLS
THE FLIGHT CONTROL SURFACES
THE LANDING GEAR AND THE RELATED DOORS
COMPONENTS THAT MOVE.

MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.

ZONE: 210
ZONE: 744

1. Reason for the Job
Refer to the MPD TASK: 282300-01
OPERATIONAL CHECK OF CROSSFEED VALVE USING INDIVIDUAL MOTORS AND CHECK FUEL FLOW IN "OPEN" AND FUEL SHUT OFF IN "CLOSED" POSITIONS

NOTE: Two persons are necessary to do this procedure.

2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	ACCESS PLATFORM 2M (6 FT)
No specific	AR	ACCESS PLATFORM 3M (10 FT)
No specific	AR	SAFETY BARRIER(S)
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	AR	WARNING NOTICE(S)
460005835	1	SLEEVE - GROUND LOCK

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
210	CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD
744	MAIN DOOR
622KB
192MB

C. Referenced Information

REFERENCE	DESIGNATION
TASK 12-11-28-650-003-A	Pressure Refuel with Automatic Control
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 28-00-00-910-001-A	Fuel Safety Procedures
TASK 28-25-00-650-001-A	Pressure Defuel
TASK 28-25-00-869-001-A	Fuel Transfer
TASK 31-60-00-860-001-A	EIS Start Procedure
TASK 31-60-00-860-002-A	EIS Stop Procedure
TASK 32-12-00-010-001-A	Open the Main Gear Doors for Access
TASK 32-12-00-410-001-A	Close the Main Gear Doors after Access
Fuel Crossfeed Valve - Location and Detail

3. Job Set-up
Subtask 28-23-00-941-051-A

A. Safety Precautions

WARNING: OBEY THE FUEL SAFETY PROCEDURES.

(1) You must obey the fuel safety procedures when you do work on the fuel system (Ref. AMM TASK 28-00-00-910-001).
(2) Put the SAFETY BARRIER(S) in position.
(3) Put a WARNING NOTICE(S) in position to tell persons not to operate the main gear doors.

Subtask 28-23-00-860-050-A

B. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).

Subtask 28-23-00-010-050-A ** ON A/C NOT FOR ALL

C. Get Access
(1) Open the right Main Landing Gear (MLG) door (Ref. AMM TASK 32-12-00-010-001).
(2) Make sure that the 460005835 SLEEVE - GROUND LOCK is on the applicable MLG door actuating-cylinder.
(3) Put an ACCESS PLATFORM 2M (6 FT) below the crossfeed valve actuator (5QE).
(4) Open access door 192MB.

NOTE: If operating in battery power, do not keep the door open longer than necessary because the battery can discharge.

Subtask 28-23-00-650-050-A ** ON A/C NOT FOR ALL

D. Fuel Configuration
(1) Refuel, defuel or transfer fuel (Ref. AMM TASK 12-11-28-650-003) (Ref. AMM TASK 28-25-00-650-001) (Ref. AMM TASK 28-25-00-869-001) to get:

A minimum of 2200 kg (4850 lb) of fuel in the left wing tank to make sure that the tank is not empty after you move the fuel to the right wing tank.
Sufficient space in the right wing tank to add 2000 kg (4409 lb) of fuel from the left wing tank.

(2) Make sure that there is not more than 4000 kg (8818 lb) of fuel in each wing tank.
(3) Keep access door 192MB open.
(4) Keep refuel panel 800VU energized.

Subtask 28-23-00-010-050-B ** ON A/C NOT FOR ALL

E. Get Access
(1) Put an ACCESS PLATFORM 3M (10 FT) in position below zone 622.
(2) Open the right Main Landing Gear (MLG) door (Ref. AMM TASK 32-12-00-010-001).
(3) Make sure that the 460005835 SLEEVE - GROUND LOCK is on the applicable MLG door actuating-cylinder.
(4) Put an ACCESS PLATFORM 2M (6 FT) below the crossfeed valve actuator (5QE).
(5) Open access panel 622KB.

NOTE: If operating in battery power, do not keep the door open longer than necessary because the battery can discharge.

Subtask 28-23-00-650-050-B ** ON A/C NOT FOR ALL

F. Fuel Configuration
(1) Refuel, defuel or transfer fuel (Ref. AMM TASK 12-11-28-650-003) (Ref. AMM TASK 28-25-00-650-001) (Ref. AMM TASK 28-25-00-869-001) to get:

A minimum of 2200 kg (4850 lb) of fuel in the left wing tank to make sure that the tank is not empty after you move the fuel to the right wing tank.
Sufficient space in the right wing tank to add 2000 kg (4409 lb) of fuel from the left wing tank.

(2) Make sure that there is not more than 4000 kg (8818 lb) of fuel in each wing tank.
(3) Keep access panel 622KB open.
(4) Keep refuel panel 800VU energized.

Subtask 28-23-00-860-052-A

G. Aircraft Maintenance Configuration
(1) Do the EIS start procedure (ECAM only) (Ref. AMM TASK 31-60-00-860-001).
(2) On panel 11VU, push the FUEL pushbutton switch (in).
(3) On panel 800VU:
(a) Put the MODE SELECT SWITCH to the DEFUEL XFR position.
(b) Put the REFUEL VALVES switch for the right wing to the OPEN position.

Subtask 28-23-00-865-050-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
121VU	FUEL/X FEED/VALVE/MOT2	1QE	M24

4. Procedure

WARNING: WHEN YOU OPERATE THE FUEL PUMPS DURING A MAINTENANCE PROCEDURE, A MAINTENANCE PERSON MUST BE IN THE COCKPIT. THIS PERSON MUST STOP THE PUMPS WHEN THE LOW PRESSURE FAULT LIGHT(S) (ON PANEL 40VU) COME ON, TO PREVENT OPERATION OF THE PUMPS(S) WITHOUT FUEL ('DRY RUNNING'). OPERATION OF THE PUMPS WITHOUT FUEL CAN CAUSE A FIRE.

Subtask 28-23-00-720-050-A

A. Test(s)
(1) In the test that follows, on each operation of the crossfeed valve:

Listen to make sure that the actuator stops each time that the crossfeed valve moves to the end of its travel.
Make sure that the see/feel indicator operates smoothly, from the valve open (valve closed) position to the valve closed (valve open) position.
Make sure that the see/feel indicator marks are accurately aligned in the valve open position.
Make sure that the see/feel indicator marks are at 90 deg (90 deg) to one another in the valve closed position.

NOTE: During this test the ECAM will show unwanted indications, which you can ignore.

ACTION	RESULT
1.On fuel control-panel 40VU: Push (in) the X FEED pushbutton switch.	On the ECAM Display Unit (DU): The crossfeed valve is shown open (in-line). On fuel control-panel 40VU: The ON and the OPEN legends come on.
2.On X FEED valve-actuator 5QE: Look at the position of the mechanical see/feel indicator.	On X FEED valve-actuator 5QE: The see/feel indicator shows that the valve is open.
3.On fuel control-panel 40VU: Push (in) the L TK PUMPS 1 and 2 pushbutton switches.	On fuel control-panel 40VU: The OFF legends go off and the FAULT legends come on momentarily. On the ECAM DU: The right wing fuel quantity increases and the left wing fuel quantity decreases.
4.On fuel control-panel 40VU: Release (out) the L TK PUMPS 1 and 2 pushbutton switches.	On fuel control-panel 40VU: The L TK PUMPS 1 and 2 pushbutton switches OFF lights come on.
CAUTION: BEFORE YOU CLOSE THE CROSSFEED VALVE, MAKE SURE THAT THE FUEL PUMP(S) IS(ARE) OFF. THIS WILL PREVENT DAMAGE TO THE CROSSFEED VALVE. 5.On fuel control-panel 40VU: Release (out) the X FEED pushbutton switch.	On fuel control-panel 40VU: The ON and the OPEN legends go off. On the ECAM DU: The crossfeed valve is shown closed (cross-line) and the fuel quantity become stable.
6.On X FEED valve-actuator 5QE: Look at the position of the mechanical see/feel indicator.	On X FEED valve-actuator 5QE: The see/feel indicator shows that the valve is closed.
7.On fuel control-panel 40VU: Push (in) the L TK PUMPS 1 and 2 pushbutton switches.	On fuel control-panel 40VU: The OFF legends go off and the FAULT legends come on momentarily. On the ECAM DU: The crossfeed valve is shown closed (cross-line) and the fuel quantity remain stable.
8.On fuel control-panel 40VU: Release (out) the L TK PUMPS 1 and 2 pushbutton switches.	On fuel control-panel 40VU: The L TK PUMPS 1 and 2 pushbutton switches OFF lights come on.

Subtask 28-23-00-865-051-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	FUEL/X FEED/VALVE/MOT2	1QE	M24

Subtask 28-23-00-865-053-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
49VU	FUEL/X FEED/VALVE/MOT1	2QE	A12

Subtask 28-23-00-720-051-A

D. Test
(1) Do the Test Procedure again.

NOTE: On the panel 40VU the OPEN legend will not come on.

5. Close-up
Subtask 28-23-00-865-052-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
49VU	FUEL/X FEED/VALVE/MOT1	2QE	A12

Subtask 28-23-00-860-053-A

B. Aircraft Maintenance Configuration
(1) Remove the access platform from the MLG bay.
(2) Do the EIS stop procedure (Ref. AMM TASK 31-60-00-860-002).
(3) On panel 800VU:
(a) Put the REFUEL VALVES switch for the right wing to the NORM position.
(b) Put the MODE SELECT switch to the OFF position.

Subtask 28-23-00-650-051-A

C. Fuel Configuration
(1) Refuel, defuel or transfer fuel as necessary (Ref. AMM TASK 12-11-28-650-003), (Ref. AMM TASK 28-25-00-650-001) or (Ref. AMM TASK 28-25-00-869-001).

Subtask 28-23-00-410-050-A ** ON A/C NOT FOR ALL

D. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close access door 192MB.
(3) Close the right MLG door (Ref. AMM TASK 32-12-00-410-001).

Subtask 28-23-00-410-050-B ** ON A/C NOT FOR ALL

D. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close access panel 622KB.
(3) Close the right MLG door (Ref. AMM TASK 32-12-00-410-001).

Subtask 28-23-00-860-051-A

E. Aircraft Maintenance Configuration
(1) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).

Subtask 28-23-00-942-051-A

F. Removal of Equipment
(1) Remove the safety barriers.
(2) Remove the access platform(s).
(3) Remove the WARNING NOTICE(S).
(4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.10 from 2021] 2026.04.01 04:25:52 UTC