Operational Check of Hydraulic Fire Shut Off Valves and Associated Indicating System

TASK 29-10-00-710-001-A
Operational Check of Hydraulic Fire Shut Off Valves and Associated Indicating System

ZONE: 210
ZONE: 574
ZONE: 674
FIN: 1046GK
FIN: 3046GD

1. Reason for the Job
Refer to the MPD TASK: 291000-09
OPERATIONAL CHECK OF HYDRAULIC FIRE SHUT OFF VALVES AND ASSOCIATED INDICATING SYSTEM.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	AMMETER - DIGITAL
FOR [1046GK] (FIRE-S.-O.V.)
No specific	1	ACCESS PLATFORM 3M (10 FT)
FOR [3046GD] (FIRE-S.-O.V.)
No specific	1	ACCESS PLATFORM 3M (10 FT)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
210	CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD
574	FALSE SPAR BOX
674	FALSE SPAR BOX
FOR [1000EM1] (ENGINE-1)
437AL, 438AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR
FOR [1046GK] (FIRE-S.-O.V.)
574AB
FOR [3046GD] (FIRE-S.-O.V.)
674AB

C. Referenced Information

REFERENCE	DESIGNATION
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 29-11-52-000-001-A	Removal of the Engine Pump Fire-Valve
TASK 29-11-52-400-001-A	Installation of the Engine Pump Fire-Valve
TASK 29-13-52-000-001-A	Removal of the Engine Pump Fire-Valve
TASK 29-13-52-400-001-A	Installation of the Engine Pump Fire-Valve
TASK 31-60-00-860-001-A	EIS Start Procedure
TASK 31-60-00-860-002-A	EIS Stop Procedure

3. Job Set-up
Subtask 29-10-00-860-071-A

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

NOTE: Do not use the ref. task 24-41-00-861-002-A-02 to energize the aircraft electrical circuits.

(2) Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
(Ref. AMM TASK 31-60-00-860-001) .
(3) On the ECAM control panel, push the HYD key. Make sure that the HYD page comes into view on the ECAM lower DU.

Subtask 29-10-00-865-077-A

B. Make sure that this(these) circuit breaker(s) is(are) closed:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
49VU	HYD/FIRE VALVE/Y/ENG2	3702GD	C14
49VU	HYD/FIRE VALVE/G/ENG1	1703GK	C13

Subtask 29-10-00-010-065-A ** ON A/C NOT FOR ALL

C. Get Access
(1) FOR [1046GK] (FIRE-S.-O.V.)
(a) Put the ACCESS PLATFORM 3M (10 FT) in position below the access panel 574AB.
(b) Open access panel 574AB.
(2) FOR [3046GD] (FIRE-S.-O.V.)
(a) Put the ACCESS PLATFORM 3M (10 FT) in position below the access panel 674AB.
(b) Open access panel 674AB.

Subtask 29-10-00-010-065-B ** ON A/C NOT FOR ALL

C. Get Access
(1) FOR [1046GK] (FIRE-S.-O.V.)
(a) Put the ACCESS PLATFORM 3M (10 FT) in position below access panel 574AB.
(b) Open access panel 574AB.
(2) FOR [3046GD] (FIRE-S.-O.V.)
(a) Put the ACCESS PLATFORM 3M (10 FT) in position below the access panel 674AB.
(b) Open access panel 674AB.
(3) FOR [1000EM1] (ENGINE-1)
(a) Open access doors 437AL and 438AR.
(4) FOR [1000EM2] (ENGINE-2)
(a) Open access doors 447AL and 448AR.

4. Procedure
Subtask 29-10-00-710-050-C ** ON A/C NOT FOR ALL

A. Do this test.

ACTION	RESULT
1.On the ENG/APU FIRE panel 1WD of the overhead panel 20VU:
lift the guards and push and release the ENG 1 FIRE and ENG 2 FIRE pushbutton switches (P/BSW).	The single chime audio warning operates.
	On the glareshield panels 130VU and 131VU: the MASTER CAUT lights come on.
	On the ECAM lower DU: the fire valve symbols of the Green and Yellow hydraulic systems change from in-line and green-colored to 90 deg. out-of-line and amber-colored.
	On the fire shut-off valve (1046GK/3046GD): the valve position indicator shows "SHUT".
2.On the ENG/APU FIRE panel 1WD of the overhead panel 20VU:	On the glareshield panels 130VU and 131VU:
push the ENG 1 FIRE and ENG 2 FIRE P/BSW.	the MASTER CAUT lights go off.
	On the ECAM lower DU: the fire valve symbols of the Green and Yellow hydraulic systems change from out-of-line and amber-colored to in-line and green-colored.
	On the fire shut-off valve (1046GK/3046GD): the valve position indicator shows "OPEN".
make sure that the P/BSW guards go back to their initial positions.
WARNING: BE VERY CAREFUL WHEN YOU DO WORK ON CIRCUIT BREAKER PANELS. THERE IS A HIGH VOLTAGE BEHIND THESE PANELS. 3.Open the overhead panel 49VU to get access to the pins of the circuit breaker 1703GK (3702GD).
4.Connect a AMMETER - DIGITAL (with a range of less than 500 mA) between the terminal 1 and terminal 2 of the circuit breaker 1703GK (3702GD) with alligator clips. NOTE: Make sure that the digital ammeter is correctly calibrated.
5.Open the circuit breaker 1703GK (3702GD).
6.Make sure that the ammeter shows 0 mA. NOTE: Take into account the tolerance of the digital ammeter. NOTE: If the ammeter does not show 0 mA, replace the fire shut-off valve 1046GK (3046GD) (Ref. AMM TASK 29-11-52-000-001) and (Ref. AMM TASK 29-11-52-400-001) or ( (Ref. AMM TASK 29-13-52-000-001)) and ( (Ref. AMM TASK 29-13-52-400-001)). NOTE: With a permanent operation of the electrical motor of the fire shut-off valve, because of an incomplete opening of the valve, the current range can be from 25 mA (clutch worn) to 400 mA.
7.Disconnect the ammeter.
8.Close the circuit breaker 1703GK (3702GD)
9.Install the overhead panel.

Subtask 29-10-00-710-050-D ** ON A/C NOT FOR ALL

A. Do this test.

ACTION	RESULT
1.On the ENG/APU FIRE panel 1WD of the overhead panel 20VU:
lift the guards and push and release the ENG 1 FIRE and ENG 2 FIRE pushbutton switches (P/BSW).	The single chime audio warning operates.
	On the glareshield panels 130VU and 131VU: the MASTER CAUT lights come on.
	On the ECAM lower DU: the fire valve symbols of the Green and Yellow hydraulic systems change from in-line and green-colored to 90 deg. out-of-line and amber-colored.
	On the fire shut-off valve (1046GK/3046GD): the valve position indicator shows "SHUT".
2.On the ENG/APU FIRE panel 1WD of the overhead panel 20VU:	On the glareshield panels 130VU and 131VU:
push the ENG 1 FIRE and ENG 2 FIRE P/BSW.	the MASTER CAUT lights go off.
	On the ECAM lower DU: the fire valve symbols of the Green and Yellow hydraulic systems change from out-of-line and amber-colored to in-line and green-colored.
	On the fire shut-off valve (1046GK/3046GD): the valve position indicator shows "OPEN".
make sure that the P/BSW guards go back to their initial positions.
WARNING: BE VERY CAREFUL WHEN YOU DO WORK ON CIRCUIT BREAKER PANELS. THERE IS A HIGH VOLTAGE BEHIND THESE PANELS. 3.Open the overhead panel 49VU to get access to the pins of the circuit breaker 1703GK (3702GD).
4.Connect a AMMETER - DIGITAL (with a range of less than 500 mA) between the terminal 1 and terminal 2 of the circuit breaker 1703GK (3702GD) with alligator clips. NOTE: Make sure that the digital ammeter is correctly calibrated.
5.Open the circuit breaker 1703GK (3702GD).
6.Make sure that the ammeter shows 0 mA. NOTE: Take into account the tolerance of the digital ammeter. NOTE: If the ammeter does not show 0 mA, replace the fire shut-off valve 1046GK (3046GD) (Ref. AMM TASK 29-11-52-000-001) and (Ref. AMM TASK 29-11-52-400-001) or ( (Ref. AMM TASK 29-13-52-000-001)) and ( (Ref. AMM TASK 29-13-52-400-001)). NOTE: With a permanent operation of the electrical motor of the fire shut-off valve, because of an incomplete opening of the valve, the current range can be from 25 mA (clutch worn) to 400 mA.
7.Disconnect the ammeter.
8.Close the circuit breaker 1703GK (3702GD)
9.Install the overhead panel.

Subtask 29-10-00-710-050-E ** ON A/C NOT FOR ALL

A. Do this test

ACTION	RESULT
1.Open overhead panel 49VU to get access to the pins of circuit breaker 1711GK (3712GD). WARNING: BE VERY CAREFUL WHEN YOU DO WORK ON CIRCUIT BREAKER PANELS. THERE IS A HIGH VOLTAGE BEHIND THESE PANELS. 2.Open circuit breaker 1711GK (3712GD) - location H14 (H13).
3.On ENG/APU FIRE panel 1WD of overhead panel 20VU:
Lift the guards and push and release the ENG 1 FIRE and ENG 2 FIRE pushbutton switches (P/BSW).	The single chime audio warning operates.
	On glareshield panels 130VU and 131VU: The MASTER CAUT lights come on.
	On the ECAM lower DU: The fire valve symbols of the Green and Yellow hydraulic systems change from in-line and green-colored to 90 deg. out-of-line and amber-colored.
	On the fire shut-off valve (1046GK/3046GD): The valve position indicator shows "SHUT".
4.On the ENG/APU FIRE panel 1WD of overhead panel 20VU:	On glareshield panels 130VU and 131VU:
Push the ENG 1 FIRE and ENG 2 FIRE P/BSW.	The MASTER CAUT lights go off.
	On the ECAM lower DU: The fire valve symbols of the Green and Yellow hydraulic systems change from out-of-line and amber-colored to in-line and green-colored.
	On the fire shut-off valve (1046GK/3046GD): The valve position indicator shows "OPEN".
Make sure that the P/BSW guards go back to their initial positions.
WARNING: BE VERY CAREFUL WHEN YOU DO WORK ON CIRCUIT BREAKER PANELS. THERE IS A HIGH VOLTAGE BEHIND THESE PANELS. 5.Close circuit breaker 1711GK (3712GD) - location H14 (H13).
WARNING: BE VERY CAREFUL WHEN YOU DO WORK ON CIRCUIT BREAKER PANELS. THERE IS A HIGH VOLTAGE BEHIND THESE PANELS. 6.Open circuit breaker 1703GK (3702GD) and wait for a few seconds.	On the fire shut-off valve (1046GK/3046GD): The valve position indicator shows "SHUT".
WARNING: BE VERY CAREFUL WHEN YOU DO WORK ON CIRCUIT BREAKER PANELS. THERE IS A HIGH VOLTAGE BEHIND THESE PANELS. 7.Close circuit breaker 1703GK (3702GD) and wait for a few seconds.	On the fire shut-off valve (1046GK/3046GD): The valve position indicator shows "OPEN".
8.Open circuit breaker 1711GK (3712GD) - location H14 (H13).
9.Open the access door of relay box 103VU.
10.Disconnect relay 1725GK (3724GD).
11.Connect the AMMETER - DIGITAL (with a range of less than 500 mA) between the terminal 1 and terminal 2 of circuit breaker 1703GK (3702GD) with alligator clips. NOTE: Make sure that the digital ammeter is correctly calibrated.
12.Open circuit breaker 1703GK (3702GD).
13.Make sure that the digital ammeter shows less than 25 mA. NOTE: Take into account the tolerance of the digital ammeter.
14.If the digital ammeter shows more than 25 mA, replace fire shut-off valve 1046GK (3046GD) (Ref. AMM TASK 29-11-52-000-001) (Ref. AMM TASK 29-11-52-400-001) (Ref. AMM TASK 29-13-52-000-001) (Ref. AMM TASK 29-13-52-400-001). NOTE: With a permanent operation of the electrical motor of the fire shut-off valve, because of an incomplete opening of the valve, the current range can be from 25 mA (clutch worn) to 400 mA.
15.Disconnect the digital ammeter.
16.Close circuit breaker 1703GK (3702GD).
17.Connect relay 1725GK (3724GD).
18.Close the access door of relay box 103VU.
19.Close circuit breaker 1711GK (3712GD) - location H14 (H13).
20.Install overhead panel 49VU.

5. Close-up
Subtask 29-10-00-860-072-A

A. Put the aircraft back to the serviceable condition.
(1) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002)
(2) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).

Subtask 29-10-00-410-065-A ** ON A/C NOT FOR ALL

B. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) FOR [1046GK] (FIRE-S.-O.V.)
(a) Close access panel 574AB.
(3) FOR [3046GD] (FIRE-S.-O.V.)
(a) Close access panel 674AB.
(4) Remove the access platform(s).

Subtask 29-10-00-410-065-B ** ON A/C NOT FOR ALL

B. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) FOR [1000EM1] (ENGINE-1)
(a) Close access doors 437AL and 438AR.
(3) FOR [1000EM2] (ENGINE-2)
(a) Close access doors 447AL and 448AR.
(4) FOR [1046GK] (FIRE-S.-O.V.)
(a) Close access panel 574AB.
(5) FOR [3046GD] (FIRE-S.-O.V.)
(a) Close access panel 674AB.
(6) Remove the access platform(s).

[Rev.10 from 2021] 2026.04.01 04:27:20 UTC