W DOC AIRBUS | AMM A320F

Functional Test of the Bleed Pressure Regulator Valve (PRV) with the Bleed Test Set P/N 98L36103002000 and the Adaptor Kit P/N 98D36109004000


TASK 36-11-52-720-815-A
Functional Test of the Bleed Pressure Regulator Valve (PRV) with the Bleed Test Set P/N 98L36103002000 and the Adaptor Kit P/N 98D36109004000


WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
WARNING: MAKE SURE THAT THE PNEUMATIC SYSTEM IS DEPRESSURIZED BEFORE YOU START WORK. PRESSURIZED AIR CAN CAUSE INJURY TO PERSONNEL.
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: YOU MUST NOT TOUCH HOT PARTS WITHOUT APPLICABLE GLOVES. HOT PARTS CAN CAUSE AN INJURY.
WARNING: MAKE SURE THAT THE SAFETY DEVICES AND THE WARNING NOTICES ARE IN POSITION BEFORE YOU START A TASK ON OR NEAR:
  • THE FLIGHT CONTROLS
  • THE FLIGHT CONTROL SURFACES
  • THE LANDING GEAR AND RELATED DOORS
  • COMPONENTS THAT MOVE.
MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.
WARNING: BEFORE YOU INSTALL/REMOVE THE GSE TOOL, READ THE MANUFACTURER'S INSTRUCTIONS, AND, WHILE YOU OPERATE THIS TOOL, CAREFULLY OBEY THEM. IF YOU DO NOT DO THIS, INJURY TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR.
WARNING: BEFORE YOU START WORK, YOU MUST PUT ON A SAFETY HARNESS AND ATTACH IT TO THE ACCESS PLATFORM. WITHOUT A SAFETY HARNESS, YOU CAN FALL. THIS CAN KILL YOU OR CAUSE YOU INJURY.
CAUTION: BE CAREFUL WHEN YOU CONNECT/DISCONNECT THE TEST SET TO/FROM THE EQUIPMENT. THE PRESSURE REGULATING VALVE AND THE PRESSURE GAGE ASSEMBLY OF THE TEST SET ARE HEAVY AND CAN CAUSE DAMAGE TO THE ENGINE.
FIN: 4001HA1
FIN: 4001HA2
1. Reason for the Job
Two persons are necessary to do the job.
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
1
AIR SOURCE 3 BAR (43.5 PSI) - REGULATED, FILTERED, DRY
No specific
AR
WARNING NOTICE(S)
No specific
1
WRENCH - STANDARD
No specific
Torque wrench: range to between 2.2 and 1.8 m.daN (16.22 and 13.27 lbf.ft ) T
98D36109004000
1
ADAPTORS KIT-BLEED
98L36103002000
1
TEST SET - ENGINE BLEED
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
FOR [1000EM1] (ENGINE-1)
437AL, 438AR, 451AL, 452AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR, 461AL, 462AR
 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 36-11-00-740-804-A
BITE Test of the Engine Bleed Air System (EBAS) (System Test)
TASK 71-13-00-010-803-A
Opening of the Fan Cowl Doors
TASK 71-13-00-410-803-A
Closing of the Fan Cowl Doors
TASK 78-30-00-040-809-A
Deactivation of the Thrust Reverser System for Ground Maintenance
TASK 78-30-00-440-809-A
Reactivation of the Thrust Reverser System after Ground Maintenance
TASK 78-36-00-010-806-A
Opening of the Thrust Reverser Cowl Doors
TASK 78-36-00-410-806-A
Closing of the Thrust Reverser Cowl Doors
3. Job Set-up
Subtask 36-11-52-861-124-A
A. Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
Subtask 36-11-52-941-130-A
B. Safety Precautions
   (1) Make sure that engine 1(2) shutdown occurred not less than five minutes before you do this procedure.
   (2) On the AIR COND section of panel 30VU:
     (a) Make sure that the ENG 1(2) BLEED pushbutton switch is released (the OFF legend is on).
     (b) Make sure that the APU BLEED pushbutton switch is released (the ON legend is off).
     (c) Put a WARNING NOTICE(S) in position to tell persons not to operate the pneumatic system.
   (3) On the center pedestal, on the ENG section of 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 was in the OFF position not less than five minutes before you do this procedure.
     (c) Put a WARNING NOTICE(S) in position to tell persons not to operate the ENG/MODE selector switch and the ENG/MASTER 1(2) control switch.
   (4) 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) Put a WARNING NOTICE(S) in position to tell persons not to energize FADEC 1(2).
   (5) On the HP ground connector:
     (a) Put a WARNING NOTICE(S) in position to tell persons not to pressurize the pneumatic system.
Subtask 36-11-52-865-103-A
C. Make sure that this(these) circuit breaker(s) is(are) closed:
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
FOR FIN: 4001HA1 (VALVEBLEED PRESS REG, ENG 1)
49VUAIR BLEED/APU BLEED VLV CTL/BMC1 OVRD11HVD14
49VUAIR BLEED/ENG 1/CTL2HA1D11
122VUAIR BLEED/ENG 1/MONG3HA1Z23
122VUAIR BLEED/X FEED VALVE/NORM1HVZ20
FOR FIN: 4001HA2 (VALVEBLEED PRESS REG, ENG 2)
49VUAIR BLEED/X FEED/VALVE/BAT2HVD13
49VUAIR BLEED/ENG 2/MONG3HA2D12
122VUAIR BLEED/ENG 2/CTL2HA2Z22
122VUAIR BLEED/APU BLEED VLV CTL/BMC2 OVRD12HVZ19
Subtask 36-11-52-010-219-A
D. Get Access
   (1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-803):
     (a) FOR [1000EM1] (ENGINE-1)
437AL and 438AR.
     (b) FOR [1000EM2] (ENGINE-2)
447AL and 448AR.
Subtask 36-11-52-040-139-A
E. Deactivation of the Thrust Reverser System
WARNING: YOU MUST DEACTIVATE THE THRUST REVERSER BEFORE YOU DO WORK ON OR AROUND IT. IF YOU DO NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE AN INJURY AND/OR DAMAGE.
   (1) Make the thrust reverser system unserviceable for maintenance (Ref. AMM TASK 78-30-00-040-809).
Subtask 36-11-52-010-220-A
F. Get Access
   (1) Open the thrust-reverser cowl doors (Ref. AMM TASK 78-36-00-010-806):
     (a) FOR [1000EM1] (ENGINE-1)
451AL and 452AR.
     (b) FOR [1000EM2] (ENGINE-2)
461AL and 462AR.
   (2) Put an ACCESS PLATFORM 1M (3 FT)-ADJUSTABLE in position below the applicable engine.
4. Procedure
Subtask 36-11-52-750-056-A
A. Manual Test of the Bleed PRV
   (1) On the bleed PRV position-indicator, record the position of the butterfly valve.
   (2) Make sure that the butterfly valve moves freely:
  • On the position indicator, use a WRENCH - STANDARD to fully open and to fully close the butterfly valve.
  • Put the butterfly valve in the initial position that you recorded.
Subtask 36-11-52-480-142-A
B. Connection of the Test Set
   (1) Remove the test port screw from the test port of the bleed PRV.
   (2) Close the shutoff valve, the purge valve and the pressure regulator valve on the 98L36103002000 TEST SET - ENGINE BLEED.
   (3) Connect the 98D36109004000 ADAPTORS KIT-BLEED to the test port of the bleed PRV.
   (4) Connect the 98L36103002000 TEST SET - ENGINE BLEED to the 98D36109004000 ADAPTORS KIT-BLEED.
   (5) Connect the AIR SOURCE 3 BAR (43.5 PSI) - REGULATED, FILTERED, DRY to the 98L36103002000 TEST SET - ENGINE BLEED.
   (6) Set the digital pressure gage back to 0 psi (0.00 bar).
Subtask 36-11-52-720-140-A
C. Functional Test of the Bleed PRV
WARNING: WHEN YOU USE COMPRESSED AIR:
  • USE THE CORRECT PROTECTION (FACE SHIELD OR GOGGLES)
  • DO NOT POINT THE AIRFLOW AT YOURSELF OR OTHER PERSONS.
LOOSE PARTICLES AND/OR HIGH PRESSURE AIR CAN CAUSE INJURY.
WARNING: WHEN YOU USE COMPRESSED AIR:
  • USE THE CORRECT PROTECTION (FACE SHIELD OR GOGGLES)
  • DO NOT POINT THE AIRFLOW AT YOURSELF OR OTHER PERSONS.
LOOSE PARTICLES AND/OR HIGH PRESSURE AIR CAN CAUSE INJURY.
   (1) Do the test(s):
ACTION
RESULT
1.On the AIR SOURCE 3 BAR (43.5 PSI) - REGULATED, FILTERED, DRY:
  • Open the shutoff valve.
On the AIR SOURCE 3 BAR (43.5 PSI) - REGULATED, FILTERED, DRY:
  • The cylinder pressure gage shows the pressure.
2.On the AIR SOURCE 3 BAR (43.5 PSI) - REGULATED, FILTERED, DRY:
  • Pressurize the pressure source to 43.5 psi (3.00 bar) with the primary regulator valve.
On the AIR SOURCE 3 BAR (43.5 PSI) - REGULATED, FILTERED, DRY:
  • The primary gage shows 43.5 psi (3.00 bar).
3.On the 98L36103002000 TEST SET - ENGINE BLEED:
  • Slowly pressurize the system to get a pressure value between 30 psi (2.07 bar) and 40 psi (2.76 bar).

4.In the cockpit:
On the bleed PRV:
The position indicator shows OPEN.
5.In the cockpit:
  • Complete the BITE test. Make sure that you apply pressure during the test.
NOTE: When the BITE test is completed, the valve closes.
On the bleed PRV:
The position indicator shows CLOSED.
6.On the 98L36103002000 TEST SET - ENGINE BLEED:
  • Decrease the pressure of the system to 0 psi (0 bar).
On the bleed PRV:
  • The position indicator shows CLOSED.
7.Depressurize the AIR SOURCE 3 BAR (43.5 PSI) - REGULATED, FILTERED, DRY.
NOTE: The valve can stays open until the next engine start and will close automatically at the next engine start.

Subtask 36-11-52-080-141-A
D. Disconnection of the Test Set:
   (1) Close the shutoff valve of the AIR SOURCE 3 BAR (43.5 PSI) - REGULATED, FILTERED, DRY.
   (2) Slowly open the purge valve of the 98L36103002000 TEST SET - ENGINE BLEED.
   (3) Disconnect the AIR SOURCE 3 BAR (43.5 PSI) - REGULATED, FILTERED, DRY from the 98L36103002000 TEST SET - ENGINE BLEED.
   (4) Disconnect the 98L36103002000 TEST SET - ENGINE BLEED from the 98D36109004000 ADAPTORS KIT-BLEED.
   (5) Disconnect the 98D36109004000 ADAPTORS KIT-BLEED from the test port of the bleed PRV.
   (6) Install the test port screw on the test port of the bleed PRV.
   (7) TORQUE the test port screw to between 2.2 and 1.8 m.daN (16.22 and 13.27 lbf.ft ) T.
5. Close-up
Subtask 36-11-52-410-208-A
Subtask 36-11-52-440-129-A
B. Reactivation of Thrust Reverser system
   (1) Make the thrust reverser system serviceable after maintenance (Ref. AMM TASK 78-30-00-440-809).
Subtask 36-11-52-410-209-A
C. Close Access
   (1) Close the fan cowl-door (Ref. AMM TASK 71-13-00-410-803):
     (a) FOR [1000EM1] (ENGINE-1)
437AL and 438AR.
     (b) FOR [1000EM2] (ENGINE-2)
447AL and 448AR.
   (2) Remove the WARNING NOTICE(S).
   (3) Remove the access platform(s).
Subtask 36-11-52-862-121-A
D. De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
[Rev.10 from 2021] 2026.04.01 01:13:15 UTC