W DOC AIRBUS | AMM A320F

Health Check Procedure - Pressure Control Function

TASK 36-11-00-720-806-A
Health Check Procedure - Pressure Control Function

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.
NOTE: In the health check procedures the electrical harness is in correct functioning condition.
1. Reason for the Job
The Bleed Health Check procedure has a set of steps to do in order to check preventively the three primary functions of the EBAS. The initial recommended maintenance interval is every 20 months. However, as the ageing effects on EBAS equipment are linked to local parameters and operating environment, Airbus recommends to customize this interval based on operators own experience.
  • For A/C with HPV Solenoid Valve:
NOTE: Only applicable to A319 with (11HA) and A320 with IAE-2500 ENG and (4029KS)).
The pressure control function contains the High Pressure Bleed Valve (HPV) 4000HA, the High Pressure Valve Control Solenoid and the sense line that connects them with the Pressure Regulation Valve (PRV) 4001HA.
  • For A/C without HPV Solenoid Valve:
NOTE: Only applicable to A320.
The pressure control function contains the High Pressure Bleed Valve (HPV) 4000HA and the sense line that connects it with the Pressure Regulation Valve (PRV) 4001HA.
  • For A/C ALL
    The pressure control function of the bleed system contains a flow chart that should be used for guidance. This flow chart gives a visual idea of the procedure.
    In order to make easy the maintenance action sequence and to prevent any maintenance action that is not necessary, each AMM task is structured in a special flow chart.
    Indeed is not necessary to test all components if the first test at function level is satisfactory. Also, sense line installation can be damaged during disconnection-reconnection for testing, and a systematic test of the sense line is not recommended. Leakage test at sense line level is required only if a need for troubleshooting is confirmed.
    The operator can remove the components that have a drift, as given in the applicable flow chart, immediately or at the next maintenance unless there is an EWD message and the source of the CLASS1 failure is the component that has the drift. In this condition, you must refer to the MMEL/TSM for the aircraft dispatch.
NOTE: You can use bleed test set P/N 99127B04 as an alternative to bleed test set P/N 99127B03.
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
ACCESS PLATFORM 1M(3 FT)
No specific
2
AIR SOURCE - REGULATED, FILTERED, DRY
No specific
1
SUPPLY - 28 VDC, ELECTRICAL
No specific
AR
WARNING NOTICE(S)
No specific
1
WRENCH - TORQUE
No specific
AR
WRENCH 5/16 IN (8MM) - SPANNER
No specific
Torque wrench: range to between 0.7 and 0.6 m.daN (61.95 and 53.10 lbf.in ) T
No specific
Torque wrench: range to between 1.1 and 0.9 m.daN (97.35 and 79.65 lbf.in ) T
No specific
Torque wrench: range to between 1.2 and 1 m.daN (106.19 and 88.50 lbf.in ) T
No specific
Torque wrench: range to between 1.69 and 1.52 m.daN (12.46 and 11.21 lbf.ft ) T
99127-231
1
TEST SET BLEED - KIT
99127B03
1
BLEED TEST SET
 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
191MB
FOR [1000EM1] (ENGINE-1)
437AL, 438AR, 451AL
FOR [1000EM2] (ENGINE-2)
447AL, 448AR, 461AL
 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 36-11-00-720-008-A
Functional Test of the Sense Line Connected between the HP Bleed Valve and the Bleed-Pressure Regulator Valve with the Bleed Test Set P/N 99127B03
TASK 36-11-00-720-008-A-01
Functional Test of the Sense Line between the HP Bleed Valve and the Bleed- Pressure Regulator Valve with the Test Set P/N 98L36103002000 and P/N SBE2213
TASK 36-11-00-720-819-A
Functional Check of the Pressure Regulating Valve (PRV) Control-Solenoid (10HA1, 10HA2) Non-Return-Function with the HP ground cart and the Bleed Test Set P/N 99127B03
TASK 36-11-00-720-819-A-02
Functional Check of the Pressure Regulating Valve (PRV) Control-Solenoid (10HA1, 10HA2) Non-Return-Function with the Engine Running
TASK 36-11-49-000-018-A
Removal of the Pneumatic Sense Lines in the Pylon
TASK 36-11-49-000-029-A
Removal of the Pneumatic Sense Lines in the Pylon
TASK 36-11-49-000-820-A
Removal of the Pneumatic Sense Lines in the Pylon
TASK 36-11-49-400-018-A
Installation of the Pneumatic Sense Lines in the Pylon
TASK 36-11-49-400-029-A
Installation of the Pneumatic Sense Lines in the Pylon
TASK 36-11-49-400-820-A
Installation of the Pneumatic Sense Lines in the Pylon
TASK 36-11-51-000-010-A
Removal of the HP Bleed Valve
TASK 36-11-51-000-040-A
Removal of the High Pressure Bleed Valve
TASK 36-11-51-000-042-A
Removal of the High Pressure Bleed Valve
TASK 36-11-51-400-010-A
Installation of the HP Bleed Valve
TASK 36-11-51-400-040-A
Installation of the High-Pressure Bleed Valve
TASK 36-11-51-400-042-A
Installation of the High-Pressure Bleed Valve
TASK 36-11-57-000-001-A
Removal of the High Pressure (HP) Bleed Valve Closure Control Solenoid
TASK 36-11-57-400-001-A
Installation of the High Pressure (HP) Bleed-Valve Closure Control-Solenoid
TASK 36-11-58-000-001-A
Removal of the HP-Bleed Override Solenoid
TASK 36-11-58-400-001-A
Installation of the HP-Bleed Override Solenoid
TASK 71-13-00-010-010-A
Opening of the Fan Cowls 437AL(447AL),438AR(448AR)
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 71-13-00-410-010-A
Closing of the Fan Cowls 437AL(447AL),438AR(448AR)
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 78-30-00-040-012-A
Deactivation of the Thrust Reverser Hydraulic Control Unit (HCU) for Ground Maintenance
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 78-30-00-440-012-A
Re-activation of the Thrust Reverser Hydraulic Control Unit (HCU) after Ground 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 78-32-00-010-010-A
Opening of the Thrust Reverser Halves
TASK 78-32-00-410-010-A
Closing of the Thrust Reverser Halves
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 Sense Line Connected between the PRV and the HPV - Location ** ON A/C NOT FOR ALL
F Sense Line Connected between the PRV and the HPV - Location ** ON A/C NOT FOR ALL
F Connection of the HPV STD 6773B and 6713D with the Bleed Test Set P/N 99127B03
F Connection of the HPV STD 6773E, 6773F and 6773G with the Bleed Test Set P/N 99127B03
F Connection of HPV STD 6773E, 6773F and 6773G (with Deactivation Screw on Regulator) with Bleed Test Set P/N 99127B03
F Connection of the HPV STD 6773B, 6773C and 6713D and PRV STD 6774E, 6774F and 6774G (without Deactivation Screw on regulator) with Bleed Test Set 99127B03
F Connection of HPV STD 6773B and 6713D (without Deactivation Screw on Regulator) and PRV STD 6774B and 6714D (with Deactivation Screw on Regulator)
F Functional Test of the Sense Line between the HP Bleed Valve (with the Deactivation Screw on the Regulator) and the Bleed-Pressure Regulator Valve
F Functional Test of the Sense Line between the HP Bleed Valve (without Deactivation Screw on Regulator) and the Bleed-Pressure Regulator Valve
F Flow Diagram of the Pressure Control Function with HPV Solenoid installed ** ON A/C NOT FOR ALL
F Flow Diagram of the Pressure Control Function without HPV Solenoid installed ** ON A/C NOT FOR ALL
3. Job Set-up
Subtask 36-11-00-861-112-A ** ON A/C NOT FOR ALL
A. Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
Subtask 36-11-00-941-116-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 pushed (the OFF legend is off).
  • 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 36-11-00-010-126-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) Open the access door 191MB.
   (3) Put the ACCESS PLATFORM 1M(3 FT) in position below the engine.
Subtask 36-11-00-040-085-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 36-11-00-010-127-A ** ON A/C NOT FOR ALL
E. Open the left thrust-reverser door (Ref. AMM TASK 78-36-00-010-040):
   (1) FOR [1000EM1] (ENGINE-1)
451AL
   (2) FOR [1000EM2] (ENGINE-2)
461AL.
Subtask 36-11-00-010-126-B ** ON A/C NOT FOR ALL
F. Get Access
   (1) Open the fan cowls (Ref. AMM TASK 71-13-00-010-010):
     (a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
     (b) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
   (2) Open the access door 191MB.
   (3) Put the ACCESS PLATFORM 1M(3 FT) in position below the engine.
Subtask 36-11-00-040-085-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) Do the deactivation of the Thrust-Reverser Hydraulic Control-Unit (HCU) (Ref. AMM TASK 78-30-00-040-012).
Subtask 36-11-00-010-127-B ** ON A/C NOT FOR ALL
H. Open the left thrust-reverser half (Ref. AMM TASK 78-32-00-010-010):
   (1) FOR [1000EM1] (ENGINE-1)
451AL
   (2) FOR [1000EM2] (ENGINE-2)
461AL.
Subtask 36-11-00-010-126-C ** ON A/C NOT FOR ALL
I. 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) Open the access door 191MB.
   (3) Put the ACCESS PLATFORM 1M(3 FT) in position below the engine.
Subtask 36-11-00-040-085-C ** ON A/C NOT FOR ALL
J. 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 36-11-00-010-127-C ** ON A/C NOT FOR ALL
K. Open the left thrust-reverser door (Ref. AMM TASK 78-36-00-010-040):
   (1) FOR [1000EM1] (ENGINE-1)
451AL
   (2) FOR [1000EM2] (ENGINE-2)
461AL.
Subtask 36-11-00-480-084-A ** ON A/C NOT FOR ALL
L. Installation of the Tool for the Minimum Opening Pressure Test of the HPV (4000HA)
F Sense Line Connected between the PRV and the HPV - Location ** ON A/C NOT FOR ALL
F Sense Line Connected between the PRV and the HPV - Location ** ON A/C NOT FOR ALL
F Connection of the HPV STD 6773B and 6713D with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
F Connection of the HPV STD 6773E, 6773F and 6773G with the Bleed Test Set P/N 99127B03 ** 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) Cut, remove and discard the lockwire of the blanking plug of the test port of HPV (4000HA).
   (2) Remove the blanking plug from the test port of HPV (4000HA).
   (3) Install the test port adaptor (T14) or (T25) on the test port of the HPV (4000HA).
CAUTION: FIRST TRY TO INSTALL THE ADAPTOR WITH THE PLUNGER PIN (T14). IF YOU CANNOT INSTALL IT, INSTALL THE OTHER ADAPTOR (T25). MAKE SURE THAT THE ADAPTOR (T14 OR T25) IS CORRECTLY TIGHTENED TO PREVENT DAMAGE TO THE BLEED TEST SET.
   (4) Use a WRENCH - TORQUE to TORQUE the test port adaptor (T25) to between 1.1 and 0.9 m.daN (97.35 and 79.65 lbf.in ) T. If you have installed test port adaptor (T14), use your hand to tighten the adaptor.
   (5) Connect Y adaptor as follows:
     (a) Connect the Y adaptor (T06) to the test port adaptor (T14) or (T25).
     (b) Connect the Y adaptor (T06) with the hose (T05) to the bleed-test set connector (14).
     (c) Connect the Y adaptor (T06) with the hose (T04) to the bleed-test set connector (9).
   (6) Use an AIR SOURCE - REGULATED, FILTERED, DRY to supply air pressure through the item (1).
Subtask 36-11-00-720-084-A ** ON A/C NOT FOR ALL
M. Minimum Opening Pressure Test of the HPV (4000HA) with the Bleed Test Set P/N 99127B03
   (1) Install the tool for the minimum opening pressure test of the HPV (4000HA).
   (2) Connect a 99127B03 BLEED TEST SET.
NOTE: Use a 99127-231 TEST SET BLEED - KIT to do this test.
   (3) Connect the 99127B03 BLEED TEST SET (T01) to a 28VDC power supply:
     (a) Connect the 28VDC electrical cord (T03) between the electrical inlet (11) of the 99127B03 BLEED TEST SET (T01) and an external SUPPLY - 28 VDC, ELECTRICAL:
  • Start the SUPPLY - 28 VDC, ELECTRICAL.
   (4) Do the power up of the 99127B03 BLEED TEST SET:
     (a) Make sure that the 99127B03 BLEED TEST SET is electrically powered up:
  • If 28VDC is supplied through an external power supply, turn the power supply to ON.
  • Set the pressure gauge (5) to ON.
  • The pressure value shown on the Liquid Crystal Display (LCD) screen must be equal to 0 psi (0.00 bar). If not, push the ON button for 10 seconds.
     (b) Pressurize the 99127B03 BLEED TEST SET.
  • Open the main pressure-source shut-off-valve slowly and pressurize the 99127B03 BLEED TEST SET (T01) to 100 psi (6.89 bar).
   (5) Do the test as follows:
     (a) For HPV standard 6773B and 6713D (Deactivation screw is on the right of the test port, in the valve body) with T25 installed:
F Connection of the HPV STD 6773B and 6713D with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
ACTION
RESULT
1.On the 99127B03 BLEED TEST SET:
  • Set the blue valve (7) to ON.

2.On the 99127B03 BLEED TEST SET:
  • With the pressure regulator knob A (3), increase the pressure to a maximum of 15 -0.1 psi or +0.1 psi (1.03 -0.01 bar or +0.01 bar).
On the 99127B03 BLEED TEST SET:
  • The pressure is shown on the LCD (5).

On the HPV:
  • The visual position indicator shows that the valve is open.
3.On the 99127B03 BLEED TEST SET:
  • With the pressure regulator knob A (3), decrease the pressure to 0 psi (0.00 bar).

     (b) For HPV standard 6773E (Deactivation screw is on the left of the test port, in the regulator) with T25 installed:
F Connection of the HPV STD 6773E, 6773F and 6773G with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
ACTION
RESULT
1.On the 99127B03 BLEED TEST SET:
  • Set the blue valve (7) to ON.

2.On the 99127B03 BLEED TEST SET:
  • With the pressure regulator knob A (3), increase the pressure to a maximum of 30 -0.1 psi or +0.1 psi (2.07 -0.01 bar or +0.01 bar).
On the 99127B03 BLEED TEST SET:
  • The pressure is shown on the LCD (5).

On the HPV:
  • The visual position indicator shows that the valve is open.
3.On the 99127B03 BLEED TEST SET:
  • With the pressure regulator knob A (3), decrease the pressure to 0 psi (0.00 bar).

     (c) For HPV standard 6773F and 6773G (Deactivation screw on the left of the test port, in the regulator) with T14 installed:
F Connection of the HPV STD 6773E, 6773F and 6773G with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
ACTION
RESULT
1.On the 99127B03 BLEED TEST SET:
  • Set the blue valve (7) to ON.

2.On the 99127B03 BLEED TEST SET:
  • With the pressure regulator knob A (3), increase the pressure to a maximum of 21 -0.1 psi or +0.1 psi (1.45 -0.01 bar or +0.01 bar).
On the 99127B03 BLEED TEST SET:
  • The pressure is shown on the LCD (5).

On the HPV:
  • The visual position indicator shows that the valve is open.
3.On the 99127B03 BLEED TEST SET:
  • With the pressure regulator knob A (3), decrease the pressure to 0 psi (0.00 bar).

Subtask 36-11-00-480-085-A ** ON A/C NOT FOR ALL
N. Installation of the tool for the Opening/Closing Test of the HPV (4000HA)
   (1) Install the tool for the Minimum Opening Pressure Test.
   (2) Do a visual inspection of the HPV.
   (3) For HPV standard 6773E, 6773F and 6773G:
F Connection of HPV STD 6773E, 6773F and 6773G (with Deactivation Screw on Regulator) with Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
     (a) Removal of the 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.
       1 Cut and discard the lockwire of the deactivation screw of the HPV.
     (b) Remove the deactivation screw from the HPV (4000HA).
CAUTION: FIRST TRY TO INSTALL THE ADAPTOR WITH THE SHORTEST THREADED AREA (T15). IF YOU CANNOT INSTALL IT, INSTALL THE OTHER ADAPTOR (T19). MAKE SURE THAT THE ADAPTOR (T15 OR T19) IS CORRECTLY TIGHTENED.
     (c) Installation of the test port adaptor.
  • Install the test port adaptor (T15) or (T19) on the HPV 4000HA.EADED AREA
     (d) Tighten with your hand the adaptor T15 or T19 to the HPV.
     (e) Install the shut-off valve (T11) in the adaptor T15 or T19.
     (f) Make sure that the shut-off valve (T11) is in the closed position.
   (4) For HPV standard 6773B, and 6713D:
  • Do a visual inspection of the PRV.
     (a) If the PRV is equipped with deactivation screw in the valve regulator (PRV 4001HA standard 6774E, 6774F and 6774G):
F Connection of the HPV STD 6773B, 6773C and 6713D and PRV STD 6774E, 6774F and 6774G (without Deactivation Screw on regulator) with Bleed Test Set 99127B03 ** 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 Removal of the lockwire.
  • Cut and discard the lockwire of the deactivation screw of the PRV 4001HA.
       2 Remove the deactivation screw from the PRV 4001HA.
CAUTION: FIRST TRY TO INSTALL THE ADAPTOR WITH THE SHORTEST THREADED AREA (T15). IF YOU CANNOT INSTALL IT, INSTALL THE OTHER ADAPTOR (T19). MAKE SURE THAT THE ADAPTOR (T15 OR T19) IS CORRECTLY TIGHTENED.
       3 Installation of the test port adaptor.
  • Install the test port adaptor (T15) or (T19) on the PRV 4001HA.
       4 Tighten with your hand the adaptor T15 or T19 to the PRV.
       5 Install the shut-off valve (T11) in the adaptor T15 or T19.
       6 Make sure that the shut-off valve (T11) is in the closed position.
     (b) If the PRV is not equipped with deactivation screw in the valve regulator (PRV 4001HA standard 6714D and 6774B):
F Connection of HPV STD 6773B and 6713D (without Deactivation Screw on Regulator) and PRV STD 6774B and 6714D (with Deactivation Screw on Regulator) ** ON A/C NOT FOR ALL
       1 The pressure-source shut-off valve (T11) is not valid for the opening/closing test of the HPV 4000HA.
       2 The opening/closing command will be simulated through the bleed P/B in Air Conditioning Panel 30VU.
       3 Two people are necessary to do the opening/closing test for these valve standards.
   (5) Use a AIR SOURCE - REGULATED, FILTERED, DRY to supply air pressure through Item (1).
Subtask 36-11-00-720-085-A ** ON A/C NOT FOR ALL
O. Opening/Closing Test of the HPV with Bleed Test Set P/N 99127B03
   (1) Install the tool for the opening/closing test as follows:
     (a) Connect the 99127B03 BLEED TEST SET.
NOTE: If necessary, you can use the 99127-231 TEST SET BLEED - KIT to do this test.
     (b) Connect the 99127B03 BLEED TEST SET to a 28VDC power supply as follows:
       1 Connect the 28VDC electrical cord (T03) to the electrical inlet (11) of the 99127B03 BLEED TEST SET (T01) and the external SUPPLY - 28 VDC, ELECTRICAL.
       2 Start the SUPPLY - 28 VDC, ELECTRICAL.
     (c) Do the power-up of the 99127B03 BLEED TEST SET:
       1 Make sure that the 99127B03 BLEED TEST SET is electrically powered:
  • If the 28VDC is supplied through an external power supply, turn the power supply to the ON position.
       2 Set the pressure gauge (5) to the ON position:
         a Make sure that the pressure value shown on the Liquid Crystal Display (LCD) screen is equal to 0 psi (0 bar).
         b If it is not equal to 0 psi (0 bar), push the ON button for 10 seconds.
       3 Do the test that follows to make sure that the lights of the bleed test set operate correctly:
  • Push the pushbutton (26) and make sure that the lights (15 to 21) come on.
   (2) Disconnect the electrical connector (4000HA-A) from the HPV (4000HA).
CAUTION: DO NOT TWIST OR BEND THE ELECTRICAL HARNESS WHEN YOU DISCONNECT/CONNECT THE ELECTRICAL CONNECTOR. IF YOU DO, YOU CAN CAUSE DAMAGE TO THE HARNESS AND THUS CAUSE ELECTRICAL CIRCUIT DEFECTS.
   (3) Connect the electrical connector cable (T09) from the 99127B03 BLEED TEST SET to the electrical connector (4000HA-A) as follows:
CAUTION: WHEN YOU CONNECT THE BLEED TEST SET, STRICTLY OBEY THE CONNECTION SEQUENCE GIVEN. IF YOU DO NOT, DAMAGE TO THE BLEED TEST SET CAN OCCUR.
     (a) Connect the 28VDC electrical cord (T03) to the electrical inlet (11) of the 99127B03 BLEED TEST SET (T01) and an external SUPPLY - 28 VDC, ELECTRICAL:
  • Start the SUPPLY - 28 VDC, ELECTRICAL.
     (b) Connect the cable (T09) to the connector (29).
     (c) Tighten the screws of the connector (29).
     (d) Connect the cable (T09) to the electrical connector (4000HA-A):
NOTE: Usually, the bleed test-set light (17) comes on while you do the test of the HPV (4000HA).
       1 The cable (T08) must not be connected to the connector (12) at this point.
       2 Make sure that you do not connect the cable (T09) to the connector (12).
   (4) Connect the electrical connector cable (T08) from the 99127B03 BLEED TEST SET connector (12) to the HPV (4000HA) electrical connector:
     (a) The light (15) automatically goes off.
   (5) Connect the Y adaptor (T06) to the test port adaptor (T14) or (T25), installed in the test port of the HPV.
   (6) Connect the Y adaptor (T06) with the hose (T05) to the bleed-test set connector (14).
   (7) Connect the Y adaptor (T06) with the hose (T04) to the bleed-test set connector (9).
WARNING: BE CAREFUL WHEN YOU PRESSURIZE THE BLEED TEST SET. THE MAXIMUM PRESSURE PERMITTED BY THE BLEED TEST SET IS 290 PSI. PRESSURE HIGHER THAN THE PRESSURE PERMITTED BY THE EQUIPMENT CAN CAUSE INJURY TO PERSONNEL AND/OR DAMAGE TO EQUIPMENT.
   (8) Pressurize the 99127B03 BLEED TEST SET:
  • Make sure that the valves (6) and (7) are closed in the 99127B03 BLEED TEST SET.
  • Slowly open the main pressure-source shut-off valve and pressurize the 99127B03 BLEED TEST SET (T01) to 100 psi (6.89 bar).
   (9) Do the test as follows:
     (a) For HPV standard 6773E, 6773F and 6773G, the pressure shut-off valve (T11) is installed in the HPV (4000HA):
F Connection of HPV STD 6773E, 6773F and 6773G (with Deactivation Screw on Regulator) with Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
ACTION
RESULT
1.On the 99127B03 BLEED TEST SET:
  • Control the light (15).
On the 99127B03 BLEED TEST SET:
  • The Light indication (15) is off.
2.On the 99127B03 BLEED TEST SET:
  • Set the blue valve (7) to the ON position.
3.On the 99127B03 BLEED TEST SET:
  • With the pressure regulator knob A (3), increase the pressure to 29 -1 psi or +1 psi (2.00 -0.07 bar or +0.07 bar).
On the 99127B03 BLEED TEST SET:
  • The pressure is shown on the LCD (5).
4.On the HPV:
  • The HPV (4000HA) opens.

5.On the 99127B03 BLEED TEST SET:
  • Control the light (15).
On the 99127B03 BLEED TEST SET:
  • The Light indication (15) is on.
6.On the HPV:
  • Move the shut-off valve (T11) from the closed position to the open position.
  • At the same time, on the 99127B03 BLEED TEST SET, set the chronometer toggle switch (19) to the ON position.
On the HPV:
  • HPV 4000HA closes.
7.On the 99127B03 BLEED TEST SET:
  • Control the light (15).
On the 99127B03 BLEED TEST SET:
  • Stop the chronometer, immediately after the light indication is OFF.
  • HPV 4000HA must close in 4 seconds.
8.On the 99127B03 BLEED TEST SET:
  • Push the reset pushbutton switch of the chronometer (13).
On the 99127B03 BLEED TEST SET:
  • The chronometer screen shows 00.

9.On the HPV:
  • Move the shut-off valve (T11) from the open position to the closed position.
  • At the same time, on the 99127B03 BLEED TEST SET, set the chronometer toggle switch (19) to the ON position.
On the HPV:
  • HPV 4000HA opens.
10.On the 99127B03 BLEED TEST SET:
  • Control the light (15).
On the 99127B03 BLEED TEST SET:
  • Stop the chronometer, immediately after the light indication is ON.
  • HPV 4000HA must open in 10 seconds.
11.On the 99127B03 BLEED TEST SET:
  • With the pressure regulator knob A (3), decrease the pressure to 0 psi (0.00 bar).
On the HPV:
  • The visual position indicator shows that the valve is closed.
     (b) For HPV (4000HA) standards 6713D and 6773B and PRV (4001HA) standard 6774E, 6774F and 6774G, the shut-off valve (T11) is installed in the PRV (4001HA):
F Connection of the HPV STD 6773B, 6773C and 6713D and PRV STD 6774E, 6774F and 6774G (without Deactivation Screw on regulator) with Bleed Test Set 99127B03 ** ON A/C NOT FOR ALL
ACTION
RESULT
1.On the 99127B03 BLEED TEST SET:
  • Control the light (15).
On the 99127B03 BLEED TEST SET:
  • The Light indication (15) is off.
2.On the 99127B03 BLEED TEST SET:
  • Set the blue valve (7) to the ON position.

3.On the 99127B03 BLEED TEST SET:
  • With the pressure regulator knob A (3), increase the pressure to 29 -1 psi or +1 psi (2.00 -0.07 bar or +0.07 bar).
On the 99127B03 BLEED TEST SET:
  • The pressure is shown on the LCD (5).
4.On the HPV:
  • The HPV (4000HA) opens.

5.On the 99127B03 BLEED TEST SET:
  • Control the light (15).
On the 99127B03 BLEED TEST SET:
  • The Light indication (15) is on
6.On the PRV:
  • Move the shut-off valve (T11) from the closed position to the open position.
  • At the same time, on the 99127B03 BLEED TEST SET, set the chronometer toggle switch (19) to position ON.
On the HPV:
  • The HPV (4000HA) closes.
7.On the 99127B03 BLEED TEST SET:
  • Control the light (15).
On the 99127B03 BLEED TEST SET:
  • Stop the chronometer, immediately after the light indication is off.
  • The HPV (4000HA) must close in 4 seconds.
8.On the 99127B03 BLEED TEST SET:
  • Push the reset pushbutton switch of the chronometer (13).
On the 99127B03 BLEED TEST SET:
  • The Chronometer screen shows 00.

9.On the PRV:
  • Move the shut-off valve (T11) from the open position to the closed position.
  • At the same time, on the 99127B03 BLEED TEST SET, set the chronometer toggle switch (19) to the ON position.
On the HPV:
  • The HPV (4000HA) opens.
10.On the 99127B03 BLEED TEST SET:
  • Control the light (15).
On the 99127B03 BLEED TEST SET:
  • Stop the chronometer, immediately after the light indication is ON.
  • The HPV (4000HA) must open in 10 seconds.
11.On the 99127B03 BLEED TEST SET:
  • With the pressure regulator knob A (3), decrease the pressure to 0 psi (0.00 bar).
On the HPV:
  • The visual position indicator shows that the valve is closed.
     (c) For HPV (4000HA) standards 6713D and 6773B and PRV (4001HA) standard 6774B and 6714D, the shut-off valve (T11) is not installed:
F Connection of HPV STD 6773B and 6713D (without Deactivation Screw on Regulator) and PRV STD 6774B and 6714D (with Deactivation Screw on Regulator) ** ON A/C NOT FOR ALL
ACTION
RESULT
1.On the 99127B03 BLEED TEST SET:
  • Control the light (15).
On the 99127B03 BLEED TEST SET:
  • The Light indication (15) is off.
2.On the 99127B03 BLEED TEST SET:
  • Set the blue valve (7) to the ON position.

3.On the 99127B03 BLEED TEST SET
  • With the pressure regulator knob A (3), increase the pressure to 29 -1 psi or +1 psi (2.00 -0.07 bar or +0.07 bar).
On the 99127B03 BLEED TEST SET:
  • The pressure is shown on the LCD (5).
4.On the HPV:
  • The HPV (4000HA) opens.

5.On the 99127B03 BLEED TEST SET:
  • Control the light (15).
On the 99127B03 BLEED TEST SET:
  • The light indication (15) is on.
6.On overhead panel 30VU:
  • Push the engine bleed 1(2) pushbutton switch.
  • At the same time, on the 99127B03 BLEED TEST SET, set the chronometer toggle switch (19) to the ON position.
On overhead panel 30VU:
  • The engine bleed 1(2) OFF legend is ON.
On the HPV:
  • The HPV (4000HA) closes.
7.On the 99127B03 BLEED TEST SET:
  • Control the light (15).
On the 99127B03 BLEED TEST SET:
  • Stop the chronometer, immediately after the light indication is off.
  • The HPV (4000HA) must close in 4 seconds.
8.On the 99127B03 BLEED TEST SET:
  • Push the reset pushbutton of the chronometer (13).
On the 99127B03 BLEED TEST SET:
  • The chronometer screen shows 00.

9.On overhead panel 30VU:
  • Push the engine bleed 1(2) pushbutton switch.
  • At the same time, on the 99127B03 BLEED TEST SET, set the chronometer toggle switch (19) to the ON position.
On overhead panel:
  • The engine bleed 1(2) OFF legend is off.
On the HPV:
  • The HPV (4000HA) opens.
10.On the 99127B03 BLEED TEST SET:
  • Control the light (15).
On the 99127B03 BLEED TEST SET:
  • Stop the chronometer, immediately after the light indication is on.
  • The HPV (4000HA) must open in 10 seconds.
11.On the 99127B03 BLEED TEST SET:
  • With the pressure regulator knob A (3), decrease the pressure to 0 psi (0.00 bar).
On the HPV:
  • The visual position indicator shows that the valve is closed.
Subtask 36-11-00-480-087-A ** ON A/C NOT FOR ALL
P. Installation of the Tool for the Test of the HPV Solenoid Valve
   (1) For HPV (4000HA) standards 6773E, 6773F and 6773G (HPV with the deactivation screw on the regulator):
F Functional Test of the Sense Line between the HP Bleed Valve (with the Deactivation Screw on the Regulator) and the Bleed-Pressure Regulator 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.
     (a) Cut, remove and discard the lockwire of the deactivation screw of the HPV (4000HA).
     (b) Remove the deactivation screw.
NOTE: You can use a WRENCH 5/16 IN (8MM) - SPANNER to remove the deactivation screw.
CAUTION: FIRST TRY TO INSTALL THE ADAPTOR WITH THE SHORTEST THREADED AREA (T15). IF YOU CANNOT INSTALL IT, INSTALL THE OTHER ADAPTOR (T19). MAKE SURE THAT THE ADAPTOR (T15 OR T19) IS CORRECTLY TIGHTENED.
     (c) Connect the sense line tester to the HPV (4000HA) as follows:
       1 Use the 99127-231 TEST SET BLEED - KIT to do this test.
       2 Connect the sense line tester (T10) to the HPV (4000HA) with the adaptor (T15) or (T19).
       3 Tighten the adaptor (T15) or (T19) with your hand.
     (d) Connect the 99127B03 BLEED TEST SET (T01) to the sense line tester (T10) as follows:
       1 Connect the sense line tester (T10) to the test port adaptor (T15) or (T19) installed on the test port of the HPV (4000HA).
       2 Connect the sense line tester (T10) with the hose (T05) to the bleed test-set connector (14).
       3 Connect the sense line tester (T10) with the hose (T04) to the bleed test-set connector (9).
     (e) Connect the 99127B03 BLEED TEST SET (T01) to a 28VDC power supply as follows:
       1 Connect the 28VDC electrical cord (T03) to the electrical inlet (11) of the 99127B03 BLEED TEST SET (T01) and an external SUPPLY - 28 VDC, ELECTRICAL:
  • Start the SUPPLY - 28 VDC, ELECTRICAL.
     (f) Do the power-up of the 99127B03 BLEED TEST SET as follows:
       1 Make sure that the 99127B03 BLEED TEST SET is electrically powered:
         a If 28VDC is supplied through an external power supply, turn the power supply to ON.
         b Set the pressure gage (5) to ON. The pressure value shown on the LCD screen must be equal to 0 psi (0.00 bar).
         c If it is not equal to 0 psi (0.00 bar), push the ON button for 10 seconds.
     (g) Use a AIR SOURCE - REGULATED, FILTERED, DRY to supply air pressure through item (1).
   (2) For HPV (4000HA) standard 6773B and 6713D (HPV without the deactivation screw on the regulator):
F Functional Test of the Sense Line between the HP Bleed Valve (without Deactivation Screw on Regulator) and the Bleed-Pressure Regulator Valve ** ON A/C NOT FOR ALL
     (a) Connect the 99127B03 BLEED TEST SET (T01) to a 28VDC power supply:
       1 Connect the 28VDC electrical cord (T03) to the electrical inlet (11) of the 99127B03 BLEED TEST SET (T01) and an external SUPPLY - 28 VDC, ELECTRICAL:
  • Start the SUPPLY - 28 VDC, ELECTRICAL.
     (b) Do the power up of the 99127B03 BLEED TEST SET:
       1 Make sure that the 99127B03 BLEED TEST SET is electrically powered up:
         a If 28VDC is supplied through an external power supply, turn the power supply to ON.
         b Set the pressure gage (5) to ON. The pressure value shown on the LCD screen must be equal to 0 psi (0.00 bar).
         c If it is not equal to 0 psi (0.00 bar), push the ON button for 10 seconds.
     (c) Connect the 99127B03 BLEED TEST SET (T01) to the sense line tester (T10) as follows:
       1 Connect the sense line tester (T10) with the hose (T05) to the test port adaptor (T20) installed on the test port of the HPV (4000HA).
       2 Connect the sense line tester (T10) with the hose (T05) to the bleed test-set connector (14).
       3 Connect the sense line tester (T10) with the hose (T04) to the bleed test-set connector (9).
     (d) Disconnect the sense line between the HPV (4000HA) and the PRV (4001HA) as follows:
CAUTION: USE A SECOND WRENCH TO APPLY COUNTERTORQUE TO THE UNION WHEN YOU DISCONNECT/CONNECT THE PNEUMATIC LINES ON UNIONS.
       1 Loosen the pneumatic union of the sense line installed on the HPV (4000HA) a quarter turn with a spanner.
       2 Shake the sense line with your hand to prevent cross thread damage to the pneumatic union.
       3 Turn the union with your hand and not with a spanner, to prevent damage to the fitting end of the sense line.
       4 Disconnect the sense line from the HPV (4000HA).
     (e) Put the blanking plug (T16) on the HPV (4000HA).
     (f) Connect the sense line adaptor (T20) as follows:
CAUTION: MAKE SURE THE ADAPTOR T20 IS CORRECTLY TIGHTENED ON THE SENSE LINE.
       1 Connect the sense line adaptor (T20) to the sense line union.
       2 TORQUE the sense line adaptor (T20) to between 1.1 and 0.9 m.daN (97.35 and 79.65 lbf.in ) T.
     (g) Connect the sense line tester (T10) to the sense line adaptor (T20).
     (h) Use a AIR SOURCE - REGULATED, FILTERED, DRY to supply air pressure through item (1).
Subtask 36-11-00-480-087-B ** ON A/C NOT FOR ALL
P. Installation of the Tool for the Test of the HPV Solenoid Valve
   (1) For HPV (4000HA) standards 6773E, 6773F and 6773G (HPV with the deactivation screw on the regulator):
F Functional Test of the Sense Line between the HP Bleed Valve (with the Deactivation Screw on the Regulator) and the Bleed-Pressure Regulator 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.
     (a) Cut, remove and discard the lockwire of the deactivation screw of the HPV (4000HA).
     (b) Remove the deactivation screw.
NOTE: You can use a WRENCH 5/16 IN (8MM) - SPANNER to remove the deactivation screw.
     (c) Connect the 99127B03 BLEED TEST SET (T01) to a 28VDC power supply as follows:
       1 Connect the 28VDC electrical cord (T03) to the electrical inlet (11) of the 99127B03 BLEED TEST SET (T01) and the external SUPPLY - 28 VDC, ELECTRICAL:
  • Start the SUPPLY - 28 VDC, ELECTRICAL.
     (d) Do the power-up of the 99127B03 BLEED TEST SET as follows:
       1 Make sure that the 99127B03 BLEED TEST SET is electrically powered:
         a If 28VDC is supplied through an external power supply, turn the power supply to ON.
         b Set the pressure gauge (5) to ON. The pressure value shown on the LCD screen must be equal to 0 psi (0.00 bar).
         c If it is not equal to 0 psi (0.00 bar), push the ON button for 10 seconds.
CAUTION: FIRST TRY TO INSTALL THE ADAPTOR WITH THE SHORTEST THREADED AREA (T15). IF YOU CANNOT INSTALL IT, INSTALL THE OTHER ADAPTOR (T19). MAKE SURE THAT THE ADAPTOR (T15 OR T19) IS CORRECTLY TIGHTENED.
     (e) Connect the sense line tester to the HPV (4000HA) as follows:
       1 Use the 99127-231 TEST SET BLEED - KIT to do this test.
       2 Connect the sense line tester (T10) to the HPV (4000HA) with the adaptor (T15) or (T19).
       3 Apply force when you tighten the adaptor (T15) or (T19) with your hand.
     (f) Connect the 99127B03 BLEED TEST SET (T01) to the sense line tester (T10) as follows:
       1 Connect the sense line tester (T10) to the test port adaptor (T15) or (T19) installed in the test port of the HPV (4000HA).
       2 Connect the sense line tester (T10) with the hose (T05) to the bleed test-set connector (14).
       3 Connect the sense line tester (T10) with the hose (T04) to the bleed test-set connector (9).
   (2) For HPV (4000HA) standard 6773B and 6713D (HPV without the deactivation screw on the regulator):
F Functional Test of the Sense Line between the HP Bleed Valve (without Deactivation Screw on Regulator) and the Bleed-Pressure Regulator Valve ** ON A/C NOT FOR ALL
     (a) Connect the 99127B03 BLEED TEST SET (T01) to a 28VDC power supply:
       1 Connect the 28VDC electrical cord (T03) between the electrical inlet (11) of the 99127B03 BLEED TEST SET (T01) and an external SUPPLY - 28 VDC, ELECTRICAL:
  • Start the SUPPLY - 28 VDC, ELECTRICAL.
     (b) Do the power-up of the 99127B03 BLEED TEST SET:
       1 Make sure that the 99127B03 BLEED TEST SET is electrically powered:
         a If 28VDC is supplied through an external power supply, turn the power supply to ON.
         b Set the pressure gauge (5) to ON. The pressure value shown on the LCD screen must be equal to 0 psi (0.00 bar).
         c If it is not equal to 0 psi (0.00 bar), push the ON button for 10 seconds.
     (c) Connect the 99127B03 BLEED TEST SET (T01) to the sense line tester (T10) as follows:
       1 Connect the sense line tester (T10) with the hose (T05) to the test port adaptor (T20) installed in the test port of the HPV (4000HA).
       2 Connect the sense line tester (T10) with the hose (T05) to the bleed test-set connector (14).
       3 Connect the sense line tester (T10) with the hose (T04) to the bleed test-set connector (9).
     (d) Disconnect the sense line between the HPV (4000HA) and the PRV (4001HA) as follows:
CAUTION: USE A SECOND WRENCH TO APPLY COUNTERTORQUE TO THE UNION WHEN YOU DISCONNECT/CONNECT THE PNEUMATIC LINES ON UNIONS.
       1 Loosen the pneumatic union of the sense line to the HPV (4000HA) a quarter turn with a spanner.
       2 Shake the sense line with your hand to prevent cross thread damage to the pneumatic union.
       3 Turn the union with your hand and not with a spanner, to prevent damage to the fitting end of the sense line.
       4 Disconnect the sense line from the HPV (4000HA).
     (e) Put the blanking plug (T16) on the HPV (4000HA).
     (f) Connect the sense line adaptor (T20) as follows:
CAUTION: MAKE SURE THE ADAPTOR T20 IS CORRECTLY TIGHTENED ON THE SENSE LINE.
       1 Connect the sense line adaptor (T20) to the sense line union.
       2 TORQUE the sense line adaptor (T20) to between 1.1 and 0.9 m.daN (97.35 and 79.65 lbf.in ) T.
     (g) Connect the sense line tester (T10) to the sense line adaptor (T20).
   (3) Use a AIR SOURCE - REGULATED, FILTERED, DRY to supply air pressure through item (1).
Subtask 36-11-00-720-086-A ** ON A/C NOT FOR ALL
Q. Functional test of the HPV Solenoid Valve
   (1) Install the tools for the functional test of the HPV Solenoid Valve.
WARNING: BE CAREFUL WHEN YOU PRESSURIZE THE BLEED TEST SET. THE MAXIMUM PRESSURE PERMITTED BY THE BLEED TEST SET IS 290 PSI. PRESSURE HIGHER THAN THE PRESSURE PERMITTED BY THE EQUIPMENT CAN CAUSE INJURY TO PERSONNEL AND/OR DAMAGE TO EQUIPMENT.
     (a) Pressurize the 99127B03 BLEED TEST SET.
  • Make sure both valves (item 1 and item 2) are closed in the sense line tester.
  • Make sure both valves (item 6 and item 7) are closed in the 99127B03 BLEED TEST SET .
  • Open the main pressure-source shut-off valve slowly and pressurize the 99127B03 BLEED TEST SET to 100 psi (6.89 bar).
   (2) Do the following test if the HPV solenoid valveis installed:
ACTION
RESULT
1.On the sense line tester:
  • Control that the sense line tester valves (1) and (2) are in open position.
On the sense line tester:
  • Both valves are aligned with the pneumatic ducts.
2.On the 99127B03 BLEED TEST SET:
  • Set the Blue valve (7) to ON.

3.On the 99127B03 BLEED TEST SET:
  • With the pressure regulator knob A (3), increase the pressure to 21 psi (1.45 bar), 22 psi (1.52 bar).
On the 99127B03 BLEED TEST SET:
  • The pressure is given on the LCD (5).
4.On the HPV solenoid valve:
  • Apply soaping water solution on the venting hole.
On the HPV solenoid valve:
  • Make sure that there is no air leaking from the HPV solenoid venting hole.
5.On the 99127B03 BLEED TEST SET
  • With the pressure regulator knob A (3), decrease the pressure to 0 psi (0.00 bar).

Subtask 36-11-00-720-116-A ** ON A/C NOT FOR ALL
R. Functional Check of the Pressure Regulating Valve (PRV) Control-Solenoid (10HA1, 10HA2) Non-Return-Function
   (1) Do the functional check (Ref. AMM TASK 36-11-00-720-819).
4. Procedure
Subtask 36-11-00-720-076-B ** ON A/C NOT FOR ALL
A. Health Check Procedure for the Pressure Control Function with Solenoid Installed
F Flow Diagram of the Pressure Control Function with HPV Solenoid installed ** ON A/C NOT FOR ALL
  • Do the minimum opening pressure-test of the HPV.
   (1) If the HPV opens at the given pressure:
  • Do the opening/closing test of the HPV.
     (a) If the HPV open/closes correctly:
  • Do the steps given in the Close-up paragraph.
     (b) If the HPV does not open/close correctly:
   (2) If the HPV does not open at the given pressure:
     (a) If there is no leak:
     (b) If there is a leak:
       1 If there is no leak:
  • Do the minimum opening pressure-test.
  • Do the opening/closing test.
  • Do the steps given in the Close-up paragraph.
       2 If there is a leak:
  • Do the functional test of the HPV solenoid valve.
         a If the HPV solenoid valve does not operate correctly:
         b If the HPV solenoid valve operates correctly:
Subtask 36-11-00-720-076-E ** ON A/C NOT FOR ALL
A. Health Check Procedure for the Pressure Control Function with Solenoid Installed
F Flow Diagram of the Pressure Control Function with HPV Solenoid installed ** ON A/C NOT FOR ALL
  • Do the minimum opening pressure-test of the HPV
   (1) If the HPV opens at the given pressure:
  • Do the opening/closing test of the HPV.
     (a) If the HPV open/closes correctly:
  • Do the steps given in the Close-up paragraph.
     (b) If the HPV does not open/close correctly:
   (2) If the HPV does not open at the given pressure:
     (a) If there is no leak:
     (b) If there is a leak:
       1 If there is no leak:
  • Do the minimum opening pressure-test.
  • Do the opening/closing test.
  • Do the steps given in the Close-up paragraph.
       2 If there is a leak:
  • Do the functional test of the HPV solenoid valve.
         a If the HPV solenoid valve does not operate correctly:
         b If the HPV solenoid valve operates correctly:
Subtask 36-11-00-720-083-D ** ON A/C NOT FOR ALL
B. Health Check Procedure for the Pressure Control Function without Solenoid Installed
F Flow Diagram of the Pressure Control Function without HPV Solenoid installed ** ON A/C NOT FOR ALL
  • Do the minimum opening pressure-test of the HPV.
   (1) If the HPV opens at the given pressure:
  • Do the opening/closing test of the HPV.
     (a) If the HPV open/closes correctly:
  • Do the steps given in the Close-up paragraph.
     (b) If the HPV does not open/close correctly then:
   (2) If the HPV does not open at the given pressure:
     (a) If there is no leak:
     (b) If there is a leak:
       1 If there is no leak:
  • Do these tests:
    * The minimum opening pressure-test
    * The opening/closing test.
  • Do the steps given in the Close-up paragraph.
       2 If there is a leak:
Subtask 36-11-00-720-083-F ** ON A/C NOT FOR ALL
B. Health Check Procedure for the Pressure Control Function without Solenoid Installed
F Flow Diagram of the Pressure Control Function without HPV Solenoid installed ** ON A/C NOT FOR ALL
  • Do the minimum opening pressure-test of the HPV.
   (1) If the HPV opens at the given pressure:
  • Do the opening/closing test of the HPV.
     (a) If the HPV open/closes correctly:
  • Do the steps given in the Close-up paragraph.
     (b) If the HPV does not open/close correctly:
   (2) If the HPV does not open at the given pressure:
     (a) If there is no leak:
     (b) If there is a leak:
       1 If there is no leak:
  • Do these tests:
    * The minimum opening pressure-test
    * The opening/closing test.
  • Do the steps given in the Close-up paragraph.
       2 If there is a leak:
5. Close-up
Subtask 36-11-00-080-084-A ** ON A/C NOT FOR ALL
A. Removal of the Tool for the HPV Solenoid Valve test
   (1) For the HPV (4000HA) with the deactivation screw on the regulator:
     (a) Disconnect and remove the adaptor (T15) or (T19), the sense line tester (T10) and the 99127B03 BLEED TEST SET (T01) from the HPV (4000HA) as follows:
       1 Disconnect the sense line tester (T10) from the test port adaptor (T15) or (T19) installed in the test port of the HPV (4000HA).
       2 Disconnect the sense line tester (T10) with the hose (T05) from the bleed test-set connector (14).
       3 Disconnect the sense line tester (T10) with the hose (T04) from the bleed test-set connector (9).
     (b) Stop the SUPPLY - 28 VDC, ELECTRICAL.
     (c) Disconnect the 28VDC electrical cord (T03) from the electrical inlet (11) of the 99127B03 BLEED TEST SET (T01) and the external SUPPLY - 28 VDC, ELECTRICAL.
CAUTION: WHEN YOU INSTALL THE DEACTIVATION SCREW ON THE VALVE, TIGHTEN THE SCREW WITH YOUR HAND BEFORE YOU TORQUE IT. IF YOU DO NOT OBEY THIS PRECAUTION, YOU CAN CAUSE DAMAGE TO THE SCREW AND THE VALVE.
CAUTION: BEFORE YOU INSTALL THE DEACTIVATION SCREW, MAKE SURE THAT THE PREFORMED PACKING IS INSTALLED ON THE DEACTIVATION SCREW.
     (d) Install the deactivation screw as follows:
NOTE: If the adaptor (T19) is installed, the deactivation screw is installed with a preformed packing. Airbus recommends you to replace the preformed packing with a new one.
     (e) Install the deactivation screw on the HPV (4000HA).
     (f) TORQUE the deactivation screw to between 0.7 and 0.6 m.daN (61.95 and 53.10 lbf.in ) T.
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.
     (g) Safety the deactivation screw on its support with the 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.
   (2) For the HPV (4000HA) without deactivation screw on the regulator:
     (a) Disconnect and remove the 99127B03 BLEED TEST SET (T01), the sense line tester (T10) and the sense line adaptor (T20) from the sense line union as follows:
       1 Disconnect the sense line tester (T10) from the sense line adaptor (T20) installed in the test port of the HPV (4000HA).
       2 Disconnect the sense line tester (T10) with the hose (T05) from the bleed test-set connector (14).
       3 Disconnect the sense line tester (T10) with the hose (T04) from the bleed test-set connector (9).
     (b) Stop the SUPPLY - 28 VDC, ELECTRICAL.
     (c) Disconnect the 28VDC electrical cord (T03) from the electrical inlet (11) of the 99127B03 BLEED TEST SET (T01) and the external SUPPLY - 28 VDC, ELECTRICAL.
     (d) Remove the blanking plug (T16) from the HPV.
CAUTION: USE A SECOND WRENCH TO APPLY COUNTERTORQUE TO THE UNION WHEN YOU DISCONNECT/CONNECT THE PNEUMATIC LINES ON UNIONS.
     (e) Connect the sense line as follows:
       1 Make sure that there is no grease or oil on the pneumatic and sense line unions.
       2 Connect the sense line to the HPV:
         a To prevent damage to the fitting end of the sense line, turn the union with your hand and not with a spanner.
       3 Do the double torque method on the union of the sense line to between 1.69 and 1.52 m.daN (12.46 and 11.21 lbf.ft ) T as follows:
         a TORQUE the union of the sense line to the given value.
         b Loosen the union of the sense line a quarter of a turn.
         c TORQUE the union of the sense line again to the given value
       4 Make a mark on the union of the sense line with paint.
Subtask 36-11-00-080-082-A ** ON A/C NOT FOR ALL
B. Removal of the tool for opening/closing test
F Connection of HPV STD 6773E, 6773F and 6773G (with Deactivation Screw on Regulator) with Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
F Connection of the HPV STD 6773B, 6773C and 6713D and PRV STD 6774E, 6774F and 6774G (without Deactivation Screw on regulator) with Bleed Test Set 99127B03 ** ON A/C NOT FOR ALL
   (1) Disconnect the test port adaptor (T14) or (T25) from the test port of the HPV (4000HA) as follows:
     (a) Disconnect the hose (T05) from the bleed test-set connector (14) and the Y adaptor (T06).
     (b) Disconnect the hose (T04) from the bleed test-set connector (9) and the Y adaptor (T06).
     (c) Disconnect the Y adaptor (T06) from the test port adaptor (T14) or (T25) installed in the test port of the HPV (4000HA).
   (2) Disconnect the shut-off valve (T11) from the adaptor (T15) or (T19).
   (3) Disconnect the adaptor (T15) or (T19):
     (a) From the HPV (4000HA) if installed.
     (b) From the PRV (4001HA) if installed.
   (4) Disconnect the electrical connector cable (T09) from the electrical connector (4000HA-A).
   (5) Disconnect the cable (T09) from the connector (29).
   (6) Disconnect the electrical connector cable (T08) from the connector (12) of the 99127B03 BLEED TEST SET and the HPV (4000HA) electrical connector.
   (7) Loosen the screws of the connector (29).
   (8) Stop the SUPPLY - 28 VDC, ELECTRICAL.
   (9) Disconnect the 28VDC electrical cord (T03) from the electrical inlet (11) of the 99127B03 BLEED TEST SET (T01) and the external SUPPLY - 28 VDC, ELECTRICAL.
   (10) If disconnected, connect the sense line to HPV (4000HA).
   (11) If removed, install the deactivation screw as follows:
CAUTION: WHEN YOU INSTALL THE DEACTIVATION SCREW ON THE VALVE, TIGHTEN THE SCREW WITH YOUR HAND BEFORE YOU TORQUE IT. IF YOU DO NOT OBEY THIS PRECAUTION, YOU CAN CAUSE DAMAGE TO THE SCREW AND THE VALVE.
CAUTION: BEFORE YOU INSTALL THE DEACTIVATION SCREW, MAKE SURE THAT THE PREFORMED PACKING IS INSTALLED ON THE DEACTIVATION SCREW.
     (a) Install the deactivation screw on the HPV (4000HA).
NOTE: If the adaptor (T19) is installed, the deactivation screw has a preformed packing. Airbus recommends you to replace the preformed packing with a new one.
     (b) TORQUE the deactivation screw to between 0.7 and 0.6 m.daN (61.95 and 53.10 lbf.in ) T.
   (12) Install the blanking cap on the test port of the HPV (4000HA).
   (13) TORQUE the blanking cap to between 1.2 and 1 m.daN (106.19 and 88.50 lbf.in ) T.
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.
   (14) Safety the deactivation screw and the blanking cap with a 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.
   (15) Connect the electrical connector (4000HA-A) as follows:
     (a) Make sure that all the electrical connections are clean and in the correct condition.
     (b) Connect the electrical connector (4000HA-A) to the HPV (4000HA).
     (c) Tighten the connector by hand plus one-eighth turn.
Subtask 36-11-00-080-083-A ** ON A/C NOT FOR ALL
C. Removal of the Tool for the Minimum Opening Pressure
F Connection of the HPV STD 6773B and 6713D with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
F Connection of the HPV STD 6773E, 6773F and 6773G with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
   (1) Remove the test port adaptor (T14) or (T25) from the test port of the HPV (4000HA) as follows:
     (a) Disconnect the hose (T05) from the bleed test-set connector (14) and the Y adaptor (T06).
     (b) Disconnect the hose (T04) from the bleed test-set connector (9) and the Y adaptor (T06).
     (c) Disconnect the Y adaptor (T06) from the test port adaptor (T14) or (T25) installed in the test port of the HPV (4000HA).
   (2) Stop the SUPPLY - 28 VDC, ELECTRICAL.
   (3) Disconnect the 28VDC electrical cord (T03) from the electrical inlet (11) of the 99127B03 BLEED TEST SET (T01) and the external SUPPLY - 28 VDC, ELECTRICAL.
   (4) Install the blanking plug on the test port of the HPV (4000HA).
   (5) TORQUE the blanking plug to between 1.2 and 1 m.daN (106.19 and 88.50 lbf.in ) T.
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.
   (6) Safety the blanking plug with the 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.
Subtask 36-11-00-410-125-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 the left thrust-reverser door (Ref. AMM TASK 78-36-00-410-040):
     (a) FOR [1000EM1] (ENGINE-1)
451AL
     (b) FOR [1000EM2] (ENGINE-2)
461AL.
Subtask 36-11-00-440-083-A ** ON A/C NOT FOR ALL
E. Make the thrust reverser serviceable after maintenance (Ref. AMM TASK 78-30-00-081-041).
Subtask 36-11-00-410-126-A ** 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) Close the access door 191MB.
   (3) Remove the access platform(s).
   (4) Remove the WARNING NOTICE(S).
Subtask 36-11-00-410-125-B ** ON A/C NOT FOR ALL
G. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Close the left thrust-reverser half (Ref. AMM TASK 78-32-00-410-010):
     (a) FOR [1000EM1] (ENGINE-1)
451AL
     (b) FOR [1000EM2] (ENGINE-2)
461AL.
Subtask 36-11-00-440-083-B ** ON A/C NOT FOR ALL
H. Do the re-activation of the thrust reverser HCU (Ref. AMM TASK 78-30-00-440-012).
Subtask 36-11-00-410-126-B ** ON A/C NOT FOR ALL
I. 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) Close the access door 191MB.
   (3) Remove the WARNING NOTICE(S).
   (4) Remove the access platform(s).
Subtask 36-11-00-410-125-C ** ON A/C NOT FOR ALL
J. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Close the left thrust-reverser door (Ref. AMM TASK 78-36-00-410-040):
     (a) FOR [1000EM1] (ENGINE-1)
451AL
     (b) FOR [1000EM2] (ENGINE-2)
461AL.
Subtask 36-11-00-440-083-C ** ON A/C NOT FOR ALL
K. Make the thrust reverser serviceable after maintenance (Ref. AMM TASK 78-30-00-081-041).
Subtask 36-11-00-410-126-C ** ON A/C NOT FOR ALL
L. 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) Close the access door 191MB.
   (3) Remove the access platform(s).
   (4) Remove the WARNING NOTICE(S).
Subtask 36-11-00-862-098-A ** ON A/C NOT FOR ALL
M. De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
[Rev.10 from 2021] 2026.04.01 01:07:15 UTC
"Aviabrain" 2025