W DOC AIRBUS | AMM A320F

Functional Test of the Opening of the Bleed-Pressure Regulator Valve (PRV) with the Bleed Test Set P/N 98L36103002000 and the Universal Test Port Tool

TASK 36-11-52-720-001-A-03
Functional Test of the Opening of the Bleed-Pressure Regulator Valve (PRV) with the Bleed Test Set P/N 98L36103002000 and the Universal Test Port Tool

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: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
FIN: 1000EM1 ** ON A/C NOT FOR ALL
FIN: 1000EM2 ** ON A/C NOT FOR ALL
FIN: 4001HA ** ON A/C NOT FOR ALL
1. Reason for the Job
This functional test checks the opening of the bleed-pressure regulator valve. With the universal test port tool, it can apply to all types of valves.
The universal test port tool has two sides, red and blue.
Only one of the sides of this tool can be used to check each valve type.
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
1
ACCESS PLATFORM 1M(3 FT)
No specific
AR
WARNING NOTICE(S)
No specific
Torque wrench: range to between 0.80 and 0.65 m.daN (70.80 and 57.52 lbf.in ) T
No specific
Torque wrench: range to between 1.2 and 1 m.daN (106.19 and 88.50 lbf.in ) T
98L36103002000
1
TEST SET - ENGINE BLEED
M82000879
1
TEST PORT UNIVERSAL
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.14QFB1)
Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -
 C. 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
 D. 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 71-13-00-010-040-A
Opening of the Fan Cowl Doors
TASK 71-13-00-010-040-B
Opening of the Fan Cowl Doors
TASK 71-13-00-410-040-A
Closing of the Fan Cowl Doors
TASK 71-13-00-410-040-B
Closing of the Fan Cowl Doors
TASK 78-30-00-081-041-A
Make the Thrust Reverser Serviceable after Maintenance
TASK 78-30-00-081-041-B
Make the Thrust Reverser Serviceable after Maintenance
TASK 78-30-00-481-041-A
Make the Thrust Reverser Unserviceable for Maintenance
TASK 78-30-00-481-041-B
Make the Thrust Reverser Unserviceable for Maintenance
TASK 78-36-00-010-040-A
Opening of the Thrust Reverser Doors
TASK 78-36-00-010-040-B
Opening of the Thrust Reverser Doors
TASK 78-36-00-410-040-A
Closing of the Thrust Reverser Doors
TASK 78-36-00-410-040-B
Closing of the Thrust Reverser Doors
F Connection of the Universal Test Port Tool (Red Side) with the Bleed Test Set P/N 98L36103002000
F Connection of the Universal Test Port Tool (Blue Side) with the Bleed Test Set P/N 98L36103002000
F Bleed-Pressure Regulator Valve - Location
3. Job Set-up
Subtask 36-11-52-861-087-A ** ON A/C NOT FOR ALL
A. Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
Subtask 36-11-52-941-093-A ** ON A/C NOT FOR ALL
B. Safety Precautions
   (1) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
   (2) On the AIR COND panel 30VU:
  • Make sure that the ENG 1(2) BLEED pushbutton switch is released (the OFF legend is on).
  • Make sure that the APU BLEED pushbutton switch is released (the ON legend is off).
  • Put a WARNING NOTICE(S) in position to tell persons not to operate the pneumatic system.
   (3) On the ENG panel 115VU:
  • Put a WARNING NOTICE(S) in position to tell persons not to start the engine 1(2).
   (4) On the HP ground connector:
  • Put a WARNING NOTICE(S) in position to tell persons not to pressurize the pneumatic system.
   (5) On the ENG section of the maintenance panel 50VU:
  • Make sure that the ON legend of the ENG/FADEC GND PWR 1(2) pushbutton switch is off.
  • Put a WARNING NOTICE(S) in position to tell persons not to energize the FADEC 1(2).
Subtask 36-11-52-010-141-A ** ON A/C NOT FOR ALL
C. Get Access
   (1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-040):
     (a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
     (b) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
   (2) Put the ACCESS PLATFORM 1M(3 FT) in position below the engine.
Subtask 36-11-52-040-102-A ** ON A/C NOT FOR ALL
D. Deactivation of the Thrust Reverser
WARNING: MAKE SURE THAT THE THRUST REVERSER HYDRAULIC CONTROL UNIT (HCU) IS DEACTIVATED BEFORE YOU DO WORK ON OR AROUND THE THRUST REVERSER. IF THE HCU IS NOT DEACTIVATED, THERE IS A RISK OF UNWANTED THRUST REVERSER OPERATION WHICH CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.
   (1) Make the thrust reverser unserviceable for maintenance (Ref. AMM TASK 78-30-00-481-041).
Subtask 36-11-52-010-142-A ** ON A/C NOT FOR ALL
E. Open the thrust reverser doors (Ref. AMM TASK 78-36-00-010-040):
   (1) FOR [1000EM1] (ENGINE-1)
451AL 452AR
   (2) FOR [1000EM2] (ENGINE-2)
461AL 462AR.
Subtask 36-11-52-010-141-B ** ON A/C NOT FOR ALL
F. Get Access
   (1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-040):
     (a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
     (b) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
   (2) Put the ACCESS PLATFORM 1M(3 FT) in position below the engine.
Subtask 36-11-52-040-102-B ** ON A/C NOT FOR ALL
G. Deactivation of the Thrust Reverser
WARNING: MAKE SURE THAT THE THRUST REVERSER HYDRAULIC CONTROL UNIT (HCU) IS DEACTIVATED BEFORE YOU DO WORK ON OR AROUND THE THRUST REVERSER. IF THE HCU IS NOT DEACTIVATED, THERE IS A RISK OF UNWANTED THRUST REVERSER OPERATION WHICH CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.
   (1) Make the thrust reverser unserviceable for maintenance (Ref. AMM TASK 78-30-00-481-041).
Subtask 36-11-52-010-142-B ** ON A/C NOT FOR ALL
H. Open the thrust reverser doors (Ref. AMM TASK 78-36-00-010-040):
   (1) FOR [1000EM1] (ENGINE-1)
451AL 452AR
   (2) FOR [1000EM2] (ENGINE-2)
461AL 462AR.
4. Procedure
Subtask 36-11-52-480-079-A ** ON A/C NOT FOR ALL
A. Installation of the Tool
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) Cut, remove and discard the lockwire between the blanking cap and the test port of the bleed-pressure regulator valve.
   (2) Remove the blanking cap from the test port.
   (3) Connect a M82000879 TEST PORT UNIVERSAL:
CAUTION: ALWAYS TRY TO INSTALL THE RED SIDE OF THE UNIVERSAL TEST PORT TOOL FIRST. IF YOU CANNOT INSTALL THE RED SIDE, INSTALL THE BLUE SIDE.
     (a) Install the red side of the M82000879 TEST PORT UNIVERSAL on the test port of the bleed-pressure regulator valve.
F Connection of the Universal Test Port Tool (Red Side) with the Bleed Test Set P/N 98L36103002000 ** ON A/C NOT FOR ALL
       1 If you can install the red side of the tool:
  • Make sure that the blue blanking cap of the M82000879 TEST PORT UNIVERSAL is correctly tightened on the blue port,
  • Go to step 4.A.(4).
       2 If you can not install the red side of the tool, do the following steps:
         a Remove the blue blanking cap from the blue side of the M82000879 TEST PORT UNIVERSAL.
         b Install the blue blanking cap on the red side of the M82000879 TEST PORT UNIVERSAL.
         c Tighten the blue blanking cap with your hand.
         d Install the blue side of the M82000879 TEST PORT UNIVERSAL on the test port of the bleed-pressure regulator valve.
F Connection of the Universal Test Port Tool (Blue Side) with the Bleed Test Set P/N 98L36103002000 ** ON A/C NOT FOR ALL
         e Tighten the M82000879 TEST PORT UNIVERSAL on the bleed-pressure regulator valve with your hand.
   (4) Close the shutoff valve, the purge valve and the pressure regulator valve of the test set.
WARNING: MAKE SURE THAT THE PRESSURE SUPPLIED TO BLEED TEST SET 98L36103002000 NEVER EXCEEDS 217 PSI (15 BAR). IF THE PRESSURE SUPPLIED TO THE BLEED TEST SET EXCEEDS THIS VALUE, THERE IS A RISK OF INJURY TO PERSONNEL AND DAMAGE TO EQUIPMENT. IF THE AIR CYLINDER DOES NOT HAVE A MANOMETER INSTALLED, YOU MUST INSTALL THE PRIMARY REGULATOR VALVE BETWEEN THE AIR BOTTLE AND BLEED TEST SET 98L36103002000. THE PRIMARY REGULATOR VALVE WILL LIMIT THE PRESSURE IN THE BLEED TEST SET TO 217 PSI (15 BAR).
   (5) Connect an air cylinder to the 98L36103002000 TEST SET - ENGINE BLEED.
   (6) Connection of the test set.
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.
     (a) Connect the 98L36103002000 TEST SET - ENGINE BLEED with the short bend flexible assembly to the M82000879 TEST PORT UNIVERSAL.
   (7) Do a reset of the digital pressure gage.
   (8) Do the test:
     (a) If you installed the red side of the tool, do the test given in paragraph 4.B.
     (b) If you installed the blue side of the tool, do the test given in paragraph 4.C.
   (9) Make sure that the regulator valve of the test set is closed before pressurize the system.
Subtask 36-11-52-720-071-A ** ON A/C NOT FOR ALL
B. Functional Test of the Bleed-Pressure Regulator Valve with the M82000879 TEST PORT UNIVERSAL (Red Side)
F Connection of the Universal Test Port Tool (Red Side) with the Bleed Test Set P/N 98L36103002000 ** ON A/C NOT FOR ALL
ACTION
RESULT
1.Pressurize the test set:
  • If there is a manometer in the air cylinder then the installation of the primary regulator valve is not necessary. Use the air cylinder shut off valve and manometer to slowly pressurize the test set to 100 psi (6.8948 bar).
  • If there is no manometer in the air cylinder then the installation of primary regulator valve is mandatory. In this case the primary regulator valve will limit the pressure in the test set to 217 psi (14.9616 bar).

2.On the test set:
  • Open the shutoff valve.
  • Use the pressure regulator valve of the test set to slowly pressurize the system to 12.33 psi (0.8501 bar).
On the bleed-pressure regulator valve (4001HA):
  • The visual position indicator shows that the valve is open.
NOTE: Read the pressure on the digital pressure gage of the test set.

3.In the cockpit, on the AIR COND panel 30VU:
  • Release the related ENG BLEED pushbutton switch (the OFF legend comes on).
On the bleed-pressure regulator valve (4001HA):
  • The visual position indicator shows that the valve is closed.
4.In the cockpit, on the AIR COND panel 30VU:
  • Push the related ENG BLEED pushbutton switch (the OFF legend goes off).
On the bleed-pressure regulator valve (4001HA):
  • The visual position indicator shows that the valve is open.
5.On the test set:
  • Use the pressure regulator valve of the test set to decrease the pressure of the system to 0 psi (0.0000 bar).
On the bleed-pressure regulator valve (4001HA):
  • The visual position indicator shows that the valve is closed. On the test set:
  • The digital pressure gage shows that the pressure decreases to 0 psi (0.0000 bar).
6.In the cockpit, on the AIR COND panel 30VU:
  • Release the related ENG BLEED pushbutton switch (the OFF legend comes on).

Subtask 36-11-52-720-078-A ** ON A/C NOT FOR ALL
C. Functional Test of the Bleed-Pressure Regulator Valve with the M82000879 TEST PORT UNIVERSAL (Blue Side)
F Connection of the Universal Test Port Tool (Blue Side) with the Bleed Test Set P/N 98L36103002000 ** ON A/C NOT FOR ALL
ACTION
RESULT
1.Pressurize the test.
  • If there is a manometer in the air cylinder then the installation of the primary regulator valve is not necessary. Use the air cylinder shut off valve and the manometer to slowly pressurize the test set to 100 psi (6.8948 bar).
  • If there is no manometer in the air cylinder then the installation of primary regulator valve is mandatory. In this case the primary regulator valve will limit the pressure to 217 psi (14.9616 bar).

2.For the Bleed-pressure regulator valve (4001HA) with the deactivation screw in position on the regulator (Valve A):
A.On the test set:
  • Open the shutoff valve.
  • Use the pressure regulator valve of the test set to slowly pressurize the system to 18.13 psi (1.2500 bar).
On the bleed-pressure regulator valve (4001HA):
  • The visual position indicator shows that the valve is open.
NOTE: Read the pressure on the digital pressure gage of the test set. For the bleed-pressure regulator valve with the deactivation screw in position on the butterfly valve (Valve B):

B.On the test set:
  • Open the shutoff valve.
  • Use the pressure regulator valve of the test set to slowly pressurize the system to 16.68 psi (1.1500 bar).
On the bleed-pressure regulator valve (4001HA):
  • The visual position indicator shows that the valve is open.
NOTE: Read the pressure on the digital pressure gage.

3.In the cockpit, on the AIR COND panel 30VU:
  • Release the related ENG BLEED pushbutton switch (the OFF legend comes on).
On the bleed-pressure regulator valve (4001HA):
  • The visual position indicator shows that the valve is closed.
4.In the cockpit, on the AIR COND panel 30VU:
  • Push the related ENG BLEED pushbutton switch (the OFF legend goes off).
On the bleed-pressure regulator valve (4001HA):
  • The visual position indicator shows that the valve is open.
5.On the test set:
  • Use the pressure regulator valve to decrease the pressure of the system to 0 psi (0.0000 bar).
On the bleed-pressure regulator valve (4001HA):
  • The visual position indicator shows that the valve is closed. On the test set:
  • The digital pressure gage shows that the pressure decreases to 0 psi (0.0000 bar).
6.In the cockpit, on the AIR COND panel 30VU:
  • Release the related ENG BLEED pushbutton switch (the OFF legend comes on).

Subtask 36-11-52-080-079-A ** ON A/C NOT FOR ALL
D. Removal of the Tool
   (1) Close the shutoff valve of the air cylinder.
   (2) Slowly open the purge valve to depressurize the test set.
WARNING: BEFORE YOU START TO REMOVE THE TOOLING, MAKE SURE THAT THERE IS NO PRESSURIZED GAS LEFT INSIDE THE DUCTS. IT CAN CAUSE AN INJURY TO PERSONNEL AND/OR DAMAGE TO EQUIPMENT.
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.
     (a) Disconnect the short bend flexible assembly from the M82000879 TEST PORT UNIVERSAL and from the 98L36103002000 TEST SET - ENGINE BLEED.
   (3) Disconnect the M82000879 TEST PORT UNIVERSAL from the test port of the bleed-pressure regulator valve.
   (4) Disconnect the air cylinder from the 98L36103002000 TEST SET - ENGINE BLEED.
   (5) Install the blanking cap on the test port of the PRV.
     (a) For PRV standard 6774B and 6714D:
  • TORQUE the blanking cap to between 1.2 and 1 m.daN (106.19 and 88.50 lbf.in ) T.
     (b) For PRV standard 6774E, 6774F and 6774G:
   (6) Safetying with lockwire
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) Safety the blanking cap with lockwire 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.
   (7) Install and tighten with your hand the blue blanking cap on the M82000879 TEST PORT UNIVERSAL, if it was removed.
5. Close-up
Subtask 36-11-52-410-134-A ** ON A/C NOT FOR ALL
A. 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 78-36-00-410-040):
     (a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
     (b) FOR [1000EM2] (ENGINE-2)
461AL 462AR.
Subtask 36-11-52-440-093-A ** ON A/C NOT FOR ALL
B. Make the thrust reverser serviceable after maintenance (Ref. AMM TASK 78-30-00-081-041).
Subtask 36-11-52-410-135-A ** ON A/C NOT FOR ALL
C. Close Access
   (1) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-040):
     (a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
     (b) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
   (2) Remove the access platform(s).
   (3) Remove the WARNING NOTICE(S).
Subtask 36-11-52-410-134-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 the thrust reverser doors (Ref. AMM TASK 78-36-00-410-040):
     (a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
     (b) FOR [1000EM2] (ENGINE-2)
461AL 462AR.
Subtask 36-11-52-440-093-B ** ON A/C NOT FOR ALL
E. Make the thrust reverser serviceable after maintenance (Ref. AMM TASK 78-30-00-081-041).
Subtask 36-11-52-410-135-B ** ON A/C NOT FOR ALL
F. Close Access
   (1) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-040):
     (a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
     (b) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
   (2) Remove the access platform(s).
   (3) Remove the WARNING NOTICE(S).
Subtask 36-11-52-862-085-A ** ON A/C NOT FOR ALL
G. De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
[Rev.10 from 2021] 2026.04.01 01:12:54 UTC
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