Installation of the HP Bleed Valve

TASK 36-11-51-400-010-A
Installation of the HP Bleed Valve

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

ZONE: 453
FIN: 4000HA ** ON A/C NOT FOR ALL

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	ACCESS PLATFORM 1M (3 FT)-ADJUSTABLE
No specific	AR	FOIL - ALUMINUM
No specific	1	HAMMER - FIBER
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 85 and 75 lbf.in (0.96 and 0.85 m.daN )
No specific	Torque wrench: range to between 150 and 135 lbf.in (1.70 and 1.53 m.daN )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.V01-012)	Cleaning fluid
(Material No.V02-147)	lockwire
(Material No.V06-032)	developer, dry
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
453	HOT SECTION
FOR [1000EM1] (ENGINE-1)
437AL, 438AR, 451AL, 452AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR, 461AL, 462AR

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
2	SEAL	AIPC 36-11-51-80-020
4	SEAL	AIPC 36-11-51-80-020

E. 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 24-41-00-862-002-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 31-60-00-860-001-A	EIS Start Procedure
TASK 31-60-00-860-002-A	EIS Stop Procedure
TASK 36-11-51-000-010-A	Removal of the HP Bleed Valve
TASK 49-00-00-860-009-A	APU Shutdown by External Power (131-9(A))
TASK 49-00-00-860-009-A-01	APU Shutdown by Batteries (131-9(A))
TASK 70-23-11-911-013-A	General Torque Tightening Techniques
TASK 70-23-13-911-010-A	Procedures for the Installation of Preformed Packings
TASK 70-23-15-912-010-A	Connection of Electrical Connectors
TASK 71-00-00-710-018-A	Discontinued Start, Restart and Shutdown Procedures
TASK 71-00-00-710-043-A	Normal Engine Automatic-Start Procedure
TASK 71-00-00-710-047-A	Normal Engine Manual-Start Procedure
TASK 71-13-00-010-010-A	Opening of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 71-13-00-410-010-A	Closing of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 78-30-00-040-012-A	Deactivation of the Thrust Reverser Hydraulic Control Unit (HCU) for Ground Maintenance
TASK 78-30-00-440-012-A	Re-activation of the Thrust Reverser Hydraulic Control Unit (HCU) after Ground Maintenance
TASK 78-32-00-010-010-A	Opening of the Thrust Reverser Halves
TASK 78-32-00-410-010-A	Closing of the Thrust Reverser Halves
HP Bleed Valve

3. Job Set-up
Subtask 36-11-51-860-057-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Make sure that the aircraft electrical circuits are energized (Ref. AMM TASK 24-41-00-861-002) or (Ref. AMM TASK 24-41-00-861-002).
(2) Make sure that the engine 1(2) is shutdown for a minimum of five minutes before you do this procedure.
(3) On AIR COND panel 30VU:
(a) Make sure that the ENG 1(2) BLEED pushbutton-switch is released (OFF legend is on).
(b) Make sure that the APU BLEED pushbutton-switch is released (ON legend is off).
(c) Make sure that the WARNING NOTICE(S) is in position to tell persons not to operate the pneumatic system.
(4) On the center pedestal panel, on ENG panel 115VU:
(a) Make sure that the ENG/MODE selector switch is in the NORM position.
(b) Make sure that the ENG/MASTER 1(2) control switch is in the OFF position for a minimum of five minutes before you do this procedure.
(c) Make sure that the WARNING NOTICE(S) are in position to tell persons not to operate:

The ENG/MODE selector switch and
The ENG/MASTER 1(2) control switch.

(5) On the HP ground connector:
(a) Make sure that the WARNING NOTICE(S) is in position to tell persons not to pressurize the pneumatic system.
(6) On the ENG section of maintenance panel 50VU:
(a) Make sure that the ON legend of the FADEC GND PWR 1(2) pushbutton-switch is off.
(b) Make sure that the WARNING NOTICE(S) is in position to tell persons not to energize the FADEC 1(2).
(7) Make sure that the ACCESS PLATFORM 1M (3 FT)-ADJUSTABLE is in position below the engine.

Subtask 36-11-51-010-061-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-010):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Make sure that the thrust reverser doors are open (Ref. AMM TASK 78-32-00-010-010):
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR

Subtask 36-11-51-040-055-A ** ON A/C NOT FOR ALL

C. Make sure that the thrust reverser Hydraulic Control Unit (HCU) is deactivated (Ref. AMM TASK 78-30-00-040-012).

Subtask 36-11-51-865-063-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	AIR BLEED/ENG 1/CTL	3HA1	D12
49VU	AIR BLEED/ENG 1/MONG	2HA1	D11
122VU	AIR BLEED/ENG 2/CTL	3HA2	Z23
122VU	AIR BLEED/ENG 2/MONG	2HA2	Z22

4. Procedure
Subtask 36-11-51-110-050-A ** ON A/C NOT FOR ALL

A. Clean the Seals
(1) Clean the surface of the seals (2) and (4) with a Textile-Lint free Cotton - (Material No.14SBA1) moistened with a Cleaning fluid (Material No.V01-012) .

Subtask 36-11-51-210-052-A ** ON A/C NOT FOR ALL

B. Visually Inspect the Seals
(1) Inspect the seal for signs of oxidation, carbon flakes and foreign substances left on the seal from contact with the mating flanges.
(2) Inspect the surface and the edges of the seal for dents, pitting, cracks, scratches and distortion.
(3) If any substance cannot be removed from the seals or if damage or distortion exists, the seal should be replaced.

Subtask 36-11-51-420-054-A ** ON A/C NOT FOR ALL

C. Installation of the HP Bleed Valve
(1) If you use the APU to energize the electrical circuits, stop the APU:

For GTCP 36-300 APU (Ref. AMM D/O 49-00-00-86)
For APS 3200 APU (Ref. AMM D/O 49-00-00-86)
For 131-9(A) APU (Ref. AMM TASK 49-00-00-860-009).

(2) In the cockpit, on the SD bleed page:
(a) Make sure that the pressure and the temperature of the bleed-air duct system are in ambient conditions.

WARNING: MAKE SURE THAT THE PNEUMATIC SYSTEM IS DEPRESSURIZED BEFORE YOU START WORK. PRESSURIZED AIR CAN CAUSE INJURY TO PERSONNEL.

WARNING: DO NOT TOUCH THE UNIT UNTIL IT IS SUFFICIENTLY COOL TO PREVENT BURNS WHEN YOU DO THE MAINTENANCE TASK(S).

(3) Remove the PLUG-BLANKING from each disconnected line end.
(4) Put the valve (3) with the AIPC 36-11-51-80-020 SEAL (2) and AIPC 36-11-51-80-020 SEAL (4) in the correct position (Ref. AMM TASK 70-23-13-911-010) for the installation (Ref. AMM TASK 36-11-51-000-010).
(5) Install the couplings (1) and (5):

CAUTION: MAKE SURE THAT THE COUPLINGS ARE IN THE CORRECT POSITION. IF THE COUPLINGS ARE NOT IN THE CORRECT POSITION, DAMAGE TO THE COMPONENTS OR STRUCTURE CAN OCCUR.

(a) Turn the couplings (1) and (5):

To prevent contact with the adjacent components
To keep a minimum necessary space for access to tighten them.

(b) Turn the valve until the clearance between the valve and the engine casing is a minimum of 0.24 in. (6.10 mm).
(6) TORQUE the nuts of the couplings (1) and (5) to between 85 and 75 lbf.in (0.96 and 0.85 m.daN )

(Ref. AMM TASK 70-23-11-911-013):
(a) Tap around the outer surface of the couplings (1) and (5) with a HAMMER - FIBER.
(b) TORQUE the nuts of the couplings (1) and (5) again to between 85 and 75 lbf.in (0.96 and 0.85 m.daN )

.
(c) Tap around the outer surface of the couplings (1) and (5) with a HAMMER - FIBER.
(d) TORQUE the nuts of the couplings (1) and (5) again to between 85 and 75 lbf.in (0.96 and 0.85 m.daN )

.
(7) Install the heatshield assembly if Vendor Service Bulletin (VSB) V2500-NAC-70-0614 is applied on the engine or if the heatshield assembly is installed on the valve:

NOTE: If VSB V2500-NAC-70-0614 is applied on the engine, the heatshield assembly is installed on the valve.

(a) Install the lower heatshield assembly (8) on the HP bleed valve between the valve and the engine case with the hose clamps (9) and (10).
(b)

HP Bleed Valve ** ON A/C NOT FOR ALL

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.

1 Safety the hose clamps (9) and (10) with lockwire (Material No.V02-147) .
(8) Connect the pressure indicating tube (6) to the valve (3):
(a) TORQUE the pressure indicating-tube nut (6) to between 150 and 135 lbf.in (1.70 and 1.53 m.daN )

.
(9) Remove the CAP-BLANKING from each electrical connector and receptacle.
(10) Make sure that all the electrical connections are clean and in the correct condition.
(11) Connect electrical connector 4000HA-A (7) to the valve (3) (Ref. AMM TASK 70-23-15-912-010).

Subtask 36-11-51-480-053-A ** ON A/C NOT FOR ALL

D. Preparation for the leak test
(1) There are two possible procedure to find the location of a pneumatic joint air leak.

NOTE: Apply dry developer only on the connections of the pneumatic components which were removed. Do not apply dry developer on all of the pneumatic components.

You can apply V06-032developer, dry around the pneumatic joints or you can install FOIL - ALUMINUM around the pneumatic joint locations.
Use the steps that follow to apply foil, aluminum to the pneumatic joint locations.
(a) Wind the foil wrap around the joint one time.
(b) Twist the seam of the foil wrap tight.
(c) Make the foil wrap as tight as possible on the tube but not rip the wrap.
(d) Attach the foil wrap with lockwire (Material No.V02-147) at both sides of the pneumatic joint.

Subtask 36-11-51-410-062-A ** ON A/C NOT FOR ALL

E. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the thrust reverser doors (Ref. AMM TASK 78-32-00-410-010):
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR

Subtask 36-11-51-440-056-A ** ON A/C NOT FOR ALL

F. Activate the thrust reverser HCU (Ref. AMM TASK 78-30-00-440-012).

Subtask 36-11-51-865-068-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	AIR BLEED/ENG 1/CTL	3HA1	D12
49VU	AIR BLEED/ENG 1/MONG	2HA1	D11
122VU	AIR BLEED/ENG 2/CTL	3HA2	Z23
122VU	AIR BLEED/ENG 2/MONG	2HA2	Z22

Subtask 36-11-51-860-059-A ** ON A/C NOT FOR ALL

H. Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
(Ref. AMM TASK 31-60-00-860-001).

Subtask 36-11-51-720-051-A ** ON A/C NOT FOR ALL

I. Do this Test
(1) on the ECAM control panel 11VU, push the BLEED key (on the lower ECAM DU, the BLEED page comes into view).
(2) On the lower ECAM DU, on the BLEED page:

Make sure that the related HP bleed valve is shown closed.

(3) Start the related engine with the automatic or manual start procedure (Ref. AMM TASK 71-00-00-710-043) or (Ref. AMM TASK 71-00-00-710-047) and keep it at idle.
(4) On the AIR COND panel 30VU:

Push the ENG 1(2) BLEED pushbutton switch (OFF legend goes off).

(5) After 5 minutes, on the lower ECAM DU, on the BLEED page:

Make sure that the HP bleed valve is shown open.

(6) Stop the engine (Ref. AMM TASK 71-00-00-710-018).

Subtask 36-11-51-040-059-A ** ON A/C NOT FOR ALL

J. Make sure that the thrust reverser Hydraulic Control Unit (HCU) is deactivated (Ref. AMM TASK 78-30-00-040-012).

Subtask 36-11-51-010-065-A ** ON A/C NOT FOR ALL

K. Get Access
(1) Open the thrust reverser doors (Ref. AMM TASK 78-32-00-010-010):
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR

Subtask 36-11-51-080-053-A ** ON A/C NOT FOR ALL

L. Make sure that there are no leaks at the junction between the HP bleed valve and the duct on the related engine.

NOTE: There is a leak when the foil installed on the duct breaks or when it is too hot.
There is a leak when the leak air removes the dry developer from the junction.

(1) Remove the materials used to check leaks.

5. Close-up
Subtask 36-11-51-860-060-A ** ON A/C NOT FOR ALL

A. Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002).

Subtask 36-11-51-410-052-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) Close the thrust reverser halves (Ref. AMM TASK 78-32-00-410-010):
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR

Subtask 36-11-51-440-052-A ** ON A/C NOT FOR ALL

C. Activate the thrust reverser HCU (Ref. AMM TASK 78-30-00-440-012).

Subtask 36-11-51-410-058-A ** ON A/C NOT FOR ALL

D. Close Access
(1) Close the fan cowls (Ref. AMM TASK 71-13-00-410-010):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Remove the WARNING NOTICE(S).
(3) Remove the access platform(s).

Subtask 36-11-51-862-051-A ** ON A/C NOT FOR ALL

E. De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002) or (Ref. AMM TASK 24-41-00-862-002).

[Rev.10 from 2021] 2026.04.01 04:09:54 UTC