W DOC AIRBUS | AMM A320F

Health Check Procedure - Pressure Regulation Function

TASK 36-11-00-720-804-A
Health Check Procedure - Pressure Regulation 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 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.
The pressure regulation function contains the Pressure Regulation Valve (PRV) 4001HA, the Bleed-Pressure-Regulator Valve Control-Solenoid 10HA1 (10HA2) (referred in this procedure as the "PRV control solenoid"), and the sense line that connects them.
The Bleed Health Check procedures contain a flow chart that should be used for guidance. This flow chart gives a visual idea of the procedure.
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
1
ACCESS PLATFORM 1M(3 FT)
No specific
1
AIR SOURCE - REGULATED, FILTERED, DRY
No specific
1
SUPPLY - 28 VDC, ELECTRICAL
No specific
AR
WARNING NOTICE(S)
No specific
1
WRENCH - SPANNER
No specific
1
WRENCH 5/16 IN (8MM) - SPANNER
No specific
Torque wrench: range to between 0.6 and 0.4 m.daN (53.10 and 35.40 lbf.in ) T
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 1.1 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
FOR [1000EM1] (ENGINE-1)
437AL, 438AR, 451AL, 452AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR, 461AL, 462AR
FOR [4LL] (SOCKET)
191MB
 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 36-11-00-720-010-A
Functional Test of the Sense Line between the Pressure Regulator Valve and the Pressure-Regulator Valve Control-Solenoid with the Bleed Test Set P/N 99127B03
TASK 36-11-00-720-010-A-01
Functional Test of the Sense Line between the Pressure Regulator Valve (PRV) and the PRV Control Solenoid with the 98L36103002000 and SBE2213
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 36-11-52-000-010-B
Removal of the Bleed Pressure-Regulator Valve
TASK 36-11-52-000-040-A
Removal of the Bleed Pressure-Regulator Valve
TASK 36-11-52-000-042-A
Removal of the Bleed Pressure Regulator Valve
TASK 36-11-52-400-010-B
Installation of the Bleed Pressure-Regulator Valve
TASK 36-11-52-400-040-A
Installation of the Bleed Pressure-Regulator Valve
TASK 36-11-52-400-042-A
Installation of the Bleed Pressure Regulating Valve (PRV)
TASK 36-11-55-000-001-A
Removal of the Bleed-Pressure-Regulator Valve Control-Solenoid
TASK 36-11-55-400-001-A
Installation of the Bleed-Pressure-Regulator Valve Control-Solenoid
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 Sense Line Connected between the PRV Control-Solenoid and the PRV - Location ** ON A/C NOT FOR ALL
F Sense Line Connected between the PRV Control-Solenoid and the PRV - Location ** ON A/C NOT FOR ALL
F Connection of the PRV STD 6774B and 6714D with the Bleed Test Set P/N 99127B03
F Connection of the PRV STD 6774E, 6774F and 6774G with the Bleed Test Set P/N 99127B03
F Connection of the PRV STD 6774B and 6714D (without the Deactivation Screw on the Regulator of the PRV) with the Bleed Test Set P/N 99127B03
F Connection of the PRV STD 6774E(with the Deactivation Screw on the Regulator of the PRV) with the Bleed Test Set P/N 99127B03
F Connection of the PRV STD 6774F and 6774G (with the Deactivation Screw on the Regulator of the PRV) with the Bleed Test Set P/N 99127B03
F Connection of the PRV STD 6774B and 6714D (with Deactivation Screw on Butterfly Valve and with coupling tube on actuator) with the Bleed Test Set P/N 99127B03
F Connection of the PRV STD 6774F and 6774G (with Deactivation Screw on regulator) with the Bleed Test Set P/N 99127B03
F Connection of the PRV STD 6774E (with Deactivation Screw on regulator) with the Bleed Test Set P/N 99127B03
F Connection of the PRV STD 6774F and 6774G (with Deactivation Screw on regulator) with the Bleed Test Set P/N 99127B03
F Connection of the PRV STD 6774B and 6714D (without Deactivation Screw on Regulator) with the Bleed Test Set P/N 99127B03
F Connection of the PRV STD 6774E (with Deactivation Screw on Regulator) with the Bleed Test Set P/N 99127B03
F Flow Diagram of the Pressure Regulation Function
3. Job Set-up
Subtask 36-11-00-861-109-A ** ON A/C NOT FOR ALL
A. Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
Subtask 36-11-00-941-113-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 36-11-00-010-120-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
Subtask 36-11-00-040-082-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 36-11-00-010-121-A ** ON A/C NOT FOR ALL
E. Get Access
   (1) Open the thrust reverser doors (Ref. AMM TASK 78-36-00-010-040):
     (a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
     (b) FOR [1000EM2] (ENGINE-2)
461AL 462AR
   (2) FOR [4LL] (SOCKET)
     (a) Open the access door 191MB.
   (3) Put the ACCESS PLATFORM 1M(3 FT) in position below the engine.
Subtask 36-11-00-010-120-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
Subtask 36-11-00-040-082-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 36-11-00-010-121-B ** ON A/C NOT FOR ALL
H. Get Access
   (1) Open the thrust reverser doors (Ref. AMM TASK 78-36-00-010-040):
     (a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
     (b) FOR [1000EM2] (ENGINE-2)
461AL 462AR
   (2) FOR [4LL] (SOCKET)
     (a) Open the access door 191MB.
   (3) Put the ACCESS PLATFORM 1M(3 FT) in position below the engine.
Subtask 36-11-00-480-080-A ** ON A/C NOT FOR ALL
I. Installation of the Tool for Minimum Opening Pressure Test
F Sense Line Connected between the PRV Control-Solenoid and the PRV - Location ** ON A/C NOT FOR ALL
F Sense Line Connected between the PRV Control-Solenoid and the PRV - Location ** ON A/C NOT FOR ALL
F Connection of the PRV STD 6774B and 6714D with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
F Connection of the PRV STD 6774E, 6774F and 6774G with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
   (1) Remove 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.
     (a) Cut and discard the lockwire of the blanking plug of the test port of PRV 4001HA.
   (2) Remove the blanking cap from the test port of PRV 4001HA.
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.
   (3) Install the test port adaptor (T14) or (T25) on the test port of PRV 4001HA.
   (4) TORQUE the adaptor to between 1.1 and 0.9 m.daN (97.35 and 79.65 lbf.in ) T.
   (5) Connect the 99127B03 BLEED TEST SET (T01) to the test port adaptor (T14) or (T25):
     (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) Connect the 99127B03 BLEED TEST SET:
NOTE: If necessary, you can use the 99127-231 TEST SET BLEED - KIT to do this test.
     (a) Connect the 28VDC electrical cord (T03) between the electrical inlet (11) of the 99127B03 BLEED TEST SET (T01) and the external SUPPLY - 28 VDC, ELECTRICAL:
  • Start the SUPPLY - 28 VDC, ELECTRICAL.
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.
   (7) Do the power up of the 99127B03 BLEED TEST SET:
NOTE: The sequence that follows is done to do the connection correctly.
     (a) Make sure that the 99127B03 BLEED TEST SET is electrically powered up:
  • If the 28VDC is supplied through an external power supply, turn the power supply to ON.
     (b) Set the pressure gauge (5) to ON:
       1 Make sure that the pressure value shown on the Liquid Crystal Display (LCD) screen is equal to 0 psi (0 bar).
       2 If it is not equal to 0 psi (0 bar), push the ON button for 10 seconds.
     (c) Do the steps that follow, for the correct operation of the 99127B03 BLEED TEST SET lights:
  • Push the pushbutton (26) and make sure that the lights (15) and (21) are ON.
   (8) Connect a AIR SOURCE - REGULATED, FILTERED, DRY with the pneumatic adaptor (T02), to supply air pressure through the item (1).
   (9) Pressurize the 99127B03 BLEED TEST SET:
  • Make sure that the two valves (6) and (7) are closed in the 99127B03 BLEED TEST SET.
  • Make sure that the pressure regulator knobs P1 (2) and A (3) are closed in the 99127B03 BLEED TEST SET.
NOTE: No pressure is transmitted to the valve.
  • Open the main pressure-source valve slowly and pressurize the 99127B03 BLEED TEST SET (T01) to 100 psi (6.89 bar).
Subtask 36-11-00-720-079-A ** ON A/C NOT FOR ALL
J. Minimum Opening Pressure Test of the PRV (4001HA) with the Bleed Test Set P/N 99127B03
   (1) Install the tool for the minimum opening pressure test.
NOTE: You can refer to Para. F. for the installation of the tool.
   (2) Do the test as follows:
     (a) For PRV standard 6774B and 6714D (Deactivation screw is on the right of the test port, in the valve body) and with T25 installed:
F Connection of the PRV STD 6774B and 6714D 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 18 -1 psi or +1 psi (1.24 -0.07 bar or +0.07 bar).
On the 99127B03 BLEED TEST SET:
  • The pressure is shown on the LCD (5).

On the PRV:
  • 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 PRV standard 6774E. (Deactivation screw is on the left of the test port, in the regulator) and with T25 installed:
F Connection of the PRV STD 6774E, 6774F and 6774G 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 -1 psi or +1 psi (2.07 -0.07 bar or +0.07 bar).
On the 99127B03 BLEED TEST SET:
  • The pressure is shown on the LCD (5).

On the PRV:
  • 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 PRV standard 6774F and 6774G (Deactivation screw is always on the left of the test port, in the regulator) and with T14 installed:
F Connection of the PRV STD 6774E, 6774F and 6774G 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 13 -1 psi or +1 psi (0.90 -0.07 bar or +0.07 bar).
On the 99127B03 BLEED TEST SET:
  • The pressure is shown on the LCD (5).

On the PRV:
  • 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 36-11-00-480-081-A ** ON A/C NOT FOR ALL
K. Installation of the tool for the Opening/Closing Test. Pressure-source shut-off valve (T11) and the electrical connectors (T12) and (T13)
   (1) Start with the installation of the tool for the minimum opening pressure test. It is necessary to install the additional tool for the opening/closing test.
   (2) Do a visual inspection of the PRV:
     (a) For PRV standard 6774B and 6714D:
F Connection of the PRV STD 6774B and 6714D (without the Deactivation Screw on the Regulator of the PRV) with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL

  • The shutoff valve (T11) is not applicable. To simulate the opening/closing command use the engine bleed pushbutton-switch on air conditioning panel 30VU.
     (b) For PRV standard 6774E, 6774F and 6774G:
F Connection of the PRV STD 6774E(with the Deactivation Screw on the Regulator of the PRV) with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
F Connection of the PRV STD 6774F and 6774G (with the Deactivation Screw on the Regulator of the PRV) with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
       1 Installation of the shutoff valve (T11):
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 Remove the lockwire:
  • Cut and discard the lockwire of the deactivation screw of the PRV.
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.
         b Remove the deactivation screw from PRV 4001HA:
  • Install the adaptor (T15) or (T19) to PRV 4001HA.
NOTE: Use the hand to tighten the adaptor.
         c Install the shutoff valve (T11) on the adaptor (T15 or T19).
         d Make sure that the shutoff valve (T11) is in the closed position.
         e Connect 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.
         f Do the power up of the 99127B03 BLEED TEST SET:
  • Make sure that the BLEED TEST SET is electrically powered up
  • If 28VDC is supplied through an external power supply, turn the power supply ON.
         g Set the pressure gages (4) and (5) to ON:
  • Make sure that the pressure value shown on the Liquid Crystal Display (LCD) screen is equal to 0 psi (0.00 bar).
  • If it is not equal to 0 psi (0.00 bar), push the ON button for 10 seconds.
         h Do the test that follows to make sure that the 99127B03 BLEED TEST SET lights operate correctly. Push the pushbutton (26) and make sure that lights (15) and (21) are on.
         i Disconnect the electrical connector (4001HA-A) from PRV 4001HA.
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.
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.
         j Connect the electrical connector cable (T13) from the 99127B03 BLEED TEST SET to the electrical connector (4001HA-A):
  • Connect the cable (T13) to the connector (29).
         k Safety the screws of the connector (29).
         l Connect the cable (T13) to the electrical connector (4001HA-A):
  • Make sure that you do not connect the cable (T12) to the connector (12) at this point.
  • Make sure that you do not connect the cable (T13) to the connector (12).
NOTE: While testing the PRV (4001HA), the bleed test-set light (17) can come on, it is a usual operation.
         m Connect the electrical connector cable (T12) to the connector (12) from the 99127B03 BLEED TEST SET to PRV 4001HA electrical connector.
         n The light (15) automatically goes off.
         o Connect a AIR SOURCE - REGULATED, FILTERED, DRY with the pneumatic adaptor (T02) to supply air pressure through the item (1).
Subtask 36-11-00-720-080-A ** ON A/C NOT FOR ALL
L. Opening/Closing Test of the PRV 4001HA with the Bleed Test Set P/N 99127B03
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.
   (1) Install the tool for opening/closing test
NOTE: You can find the installation of the tool in para H.
     (a) Pressurize the 99127B03 BLEED TEST SET:
  • Make sure that the valves (6) and (7) are closed in the 99127B03 BLEED TEST SET.
  • Make sure that the pressure regulator knobs P1 (2) and A (3) are closed in the 99127B03 BLEED TEST SET, no pressure is transmitted to the valve.
  • Open the main pressure-source shutoff valve slowly and pressurize the 99127B03 BLEED TEST SET (T01) to 100 psi (6.89 bar).
   (2) Do the test:
     (a) For PRV standard 6774B and 6714D, the pressure-source shutoff valve (T11) is not installed.
F Connection of the PRV STD 6774B and 6714D (without the Deactivation Screw on the Regulator of the PRV) with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
ACTION
RESULT
1.On the 99127B03 BLEED TEST SET:
  • Control light (15).
On the 99127B03 BLEED TEST SET:
  • Light indication (15) is OFF.
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 29 -1 psi or +1 psi (2.00 -0.07 bar or +0.07 bar).
On the 99127B03 BLEED TEST SET:
  • The pressure is given on the LCD (5).
4.On the PRV:
  • The PRV (4001HA) opens.

5.On the 99127B03 BLEED TEST SET:
  • Control light (15).
On the 99127B03 BLEED TEST SET:
  • Light indication (15) is ON.
6.On the overhead panel 30VU:
  • Release the ENGINE BLEED 1(2) pushbutton switch
  • At the same time on the 99127B03 BLEED TEST SET, set the chronometer toggle switch (19) to position ON.
On the overhead panel:
  • The ENGINE BLEED 1(2) OFF legend is ON.
    On the PRV:
  • The PRV (4001HA) closes.
7.On the 99127B03 BLEED TEST SET:
  • Control light (15) is OFF.
On the 99127B03 BLEED TEST SET:
  • Stop the chronometer (13), as soon as the light indication is OFF.
  • Closing time must not exceed 4 seconds.
8.On the 99127B03 BLEED TEST SET:
  • Press the RESET pushbutton of the chronometer (13).
On the 99127B03 BLEED TEST SET:
  • Chronometer screen shows 00.

9.On the 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 position ON.
On the overhead panel:
  • The ENGINE BLEED 1(2) OFF legend is OFF.
    On the PRV:
  • The PRV (4001HA) opens.
10.On the 99127B03 BLEED TEST SET:
  • Control light (15) is ON.
On the 99127B03 BLEED TEST SET:
  • Stop the chronometer, as soon as the light indication is ON.
  • Opening time must not exceed 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).

     (b) For PRV standard 6774E, 6774F and 6774G (Deactivation screw is on the left side of the test port in the valve regulator). The pressure-source shut-off valve (T11) is installed in the position of deactivation screw.
F Connection of the PRV STD 6774F and 6774G (with the Deactivation Screw on the Regulator of the PRV) with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
F Connection of the PRV STD 6774E(with the Deactivation Screw on the Regulator of the PRV) with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
ACTION
RESULT
1.On the 99127B03 BLEED TEST SET:
  • Control light (15).
On the 99127B03 BLEED TEST SET:
  • Light indication (15) is off.
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 29 -1 psi or +1 psi (2.00 -0.07 bar or +0.07 bar).
On the 99127B03 BLEED TEST SET:
  • The pressure is given on the LCD (5).
4.On the PRV:
  • The PRV (4001HA) opens.

5.On the 99127B03 BLEED TEST SET:
  • Control light (15).
On the 99127B03 BLEED TEST SET:
  • Light indication (15) is on.
6.On the PRV:
  • Move the pressure-source shut-off valve (T11) from closed to open.
  • At the same time on the 99127B03 BLEED TEST SET, set the chronometer toggle switch (19) to position ON.
On the PRV:
  • The PRV (4001HA) closes.
7.On the 99127B03 BLEED TEST SET:
  • Control light (15) is OFF.
On the 99127B03 BLEED TEST SET:
  • Stop the chronometer, as soon as the light indication is OFF.
  • Closing time must not exceed 4 seconds.
8.On the 99127B03 BLEED TEST SET:
  • Press the RESET pushbutton of the chronometer (13).
On the 99127B03 BLEED TEST SET:
  • Chronometer screen shows 00.

9.On the PRV:
  • Move the pressure-source shut-off valve (T11) from open to closed.
  • At the same time on the 99127B03 BLEED TEST SET, set the chronometer toggle switch (19) to position ON.
On the PRV:
  • The PRV (4001HA) opens.
10.On the 99127B03 BLEED TEST SET:
  • Control light (15) is ON.
On the 99127B03 BLEED TEST SET:
  • Stop the chronometer, as soon as the light indication is ON.
  • Opening time must not exceed 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)..

Subtask 36-11-00-480-082-A ** ON A/C NOT FOR ALL
M. Installation of the Tool for the Pressure Regulating Test of the PRV
   (1) For PRV standard 6714D series 01 to 06 before the bleed improvement program.

This test is not possible (You cannot have access to do the necessary connections).
   (2) For PRV standard 6774B and 6714D with the deactivation screw on the butterfly valve and the coupling tube on the actuator:
F Connection of the PRV STD 6774B and 6714D (with Deactivation Screw on Butterfly Valve and with coupling tube on actuator) with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
NOTE: If necessary, you can use the 99127-231 TEST SET BLEED - KIT to do this test.
     (a) Remove the lockwire as follows:
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 from the blanking cap of the test port of the PRV.
     (b) Remove the blanking cap from the test port.
     (c) Disconnect the sense line:
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 one-quarter turn with a WRENCH - SPANNER.
       2 Shake the sense line with your hand to prevent the cross thread damage to the pneumatic union.
       3 Turn the union with your hand and not with a WRENCH - SPANNER, to prevent damage to the fitting end of the sense line.
       4 Disconnect the sense line from the PRV.
       5 Put the blanking plugs (T23) on the disconnected line ends. This does not cause contamination of the sense line.
     (d) Connect one adaptor (T25) to the test port of the PRV.
     (e) Connect a second adaptor (T25) to the solenoid thermostat connector of the PRV.
     (f) TORQUE the two test port adaptors (T25) to between 1.2 and 1 m.daN (106.19 and 88.50 lbf.in ) T.
     (g) Connect the 99127B03 BLEED TEST SET (T01) to the two test port adaptors (T25):
       1 Connect "Y" adaptor (T06) to the test port adaptor (T25) installed in the test port of the PRV.
       2 Connect "Y" adaptor (T06) with the hose (T05) to the bleed-test set connector (10).
       3 Connect "Y" adaptor (T06) with the hose (T04) to the bleed-test set connector (9).
       4 Connect the bleed-test set connector (14) with the hose (T05) to the test port adaptor (T25) installed in the solenoid thermostat connector of the PRV.
     (h) Connect the 99127B03 BLEED TEST SET to 28VDC power supply:
       1 Connect 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.
     (i) 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 gauge (4) and (5) to ON:
  • Make sure that the pressure value shown on the LCD screen is equal to 0 psi (0 bar).
  • If it is not equal to 0 psi (0 bar), push the ON button for 10 seconds.
         c Do the test that follows to make sure that the 99127B03 BLEED TEST SET lights operate correctly:
  • Push the pushbutton (26) and make sure that lights (15) and (21) are ON.
     (j) Connect the AIR SOURCE - REGULATED, FILTERED, DRY with the pneumatic adaptor (T02) to supply air pressure through the item (1).
     (k) Pressurize the 99127B03 BLEED TEST SET:
  • Make sure that the two valves (6) and (7) are closed in the 99127B03 BLEED TEST SET.
  • Make sure that pressure regulator knobs P1 (2) and A (3) are closed in the 99127B03 BLEED TEST SET.
NOTE: No pressure is transmitted to the valve.
  • Open the main pressure-source valve slowly and pressurize the 99127B03 BLEED TEST SET.
   (3) For PRV standard 6774E, 6774F and 6774G with the deactivation screw No.1 on regulator:
F Connection of the PRV STD 6774F and 6774G (with Deactivation Screw on regulator) with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
F Connection of the PRV STD 6774E (with Deactivation Screw on regulator) with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
NOTE: If necessary, you can use the 99127-231 TEST SET BLEED - KIT to do this test.
     (a) Remove the lockwire as follows:
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 from the deactivation screw.
       2 Cut, remove and discard the lockwire from the blanking cap of the test port of the PRV.
     (b) Remove the deactivation screw and the blanking cap of the test port of the PRV:
NOTE: If necessary, you can use a WRENCH 5/16 IN (8MM) - SPANNER.
       1 If the deactivation screw has a preformed packing:
  • Make sure that the preformed packing is installed on the deactivation screw and does not stay on the PRV.
     (c) Connect the test port adaptor (T14) or (T25) to the test port of the PRV.
     (d) First try to install the adaptor (T14). If you cannot install it, install the other adaptor (T25). TORQUE the test port adaptor (T14) or (T25) to between 1.1 and 0.9 m.daN (97.35 and 79.65 lbf.in ) T.
     (e) Connect the 99127B03 BLEED TEST SET (T01) to the test port adaptor (T14) or (T25):
       1 Connect "Y" adaptor (T06) to the test port adaptor (T14) or (T25).
       2 Connect "Y" adaptor (T06) with the hose (T05) to the bleed-test set connector (10).
       3 Connect "Y" adaptor (T06) with the hose (T04) to the bleed-test set connector (9).
     (f) Connect the adaptor (T15) or (T19):
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.
       1 Connect the adaptor (T15) or (T19) to the PRV.
       2 Connect the adaptor (T15) or (T19) with the pneumatic adaptor (T29) and the hose (T05) to the connector (14) of the 99127B03 BLEED TEST SET (T01).
       3 Apply force when you tighten the adaptor (T15) or (T19) with your hand.
     (g) Connect the 99127B03 BLEED TEST SET to 28VDC power supply:
       1 Connect 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.
     (h) 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 gauge (4) and (5) to ON:
  • Make sure that the pressure value shown on the LCD screen is equal to 0 psi (0 bar).
  • If it is not equal to 0 psi (0 bar), push the ON button for 10 seconds.
         c Do the test that follows to make sure that the 99127B03 BLEED TEST SET lights operate correctly:
  • Push the pushbutton (26) and make sure that the lights (15) and (21) are ON.
     (i) Connect an AIR SOURCE - REGULATED, FILTERED, DRY with the pneumatic adaptor (T02) to supply air pressure through the item (1).
     (j) Pressurize the 99127B03 BLEED TEST SET:
  • Make sure that the two valves (6) and (7) are closed in the 99127B03 BLEED TEST SET.
  • Make sure that the pressure regulator knobs P1 (2) and A (3) are closed in the 99127B03 BLEED TEST SET.
NOTE: No pressure is transmitted to the valve.
  • Open the main pressure-source valve slowly and pressurize the 99127B03 BLEED TEST SET.
Subtask 36-11-00-720-081-A ** ON A/C NOT FOR ALL
N. Pressure Regulation Test of the PRV
F Connection of the PRV STD 6774B and 6714D (with Deactivation Screw on Butterfly Valve and with coupling tube on actuator) with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
F Connection of the PRV STD 6774F and 6774G (with Deactivation Screw on regulator) with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
F Connection of the PRV STD 6774E (with Deactivation Screw on regulator) with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
   (1) Install the tool for the pressure regulation test:
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:
       1 Open the main pressure-source shutoff valve slowly and pressurize the 99127B03 BLEED TEST SET (T01) to 100 psi (6.89 bar).
   (2) Do the test:
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 between 86 psi (5.93 bar) and 88 psi (6.07 bar).
On the 99127B03 BLEED TEST SET:
  • The pressure supplied is given on the LCD (4).
3.On the 99127B03 BLEED TEST SET:
  • Wait until the pressure shown on the LCD (5) is stable.
On the 99127B03 BLEED TEST SET:
  • Make sure that the reference pressure value shown on the LCD (5) is between 42 psi (2.90 bar) and 52 psi (3.59 bar).
NOTE: In this test the PRV reference pressure is not equal to the PRV regulated pressure.
NOTE: If you do not get a pressure between 86 psi (5.93 bar) and 88 psi (6.07 bar), you can increase the pressure that the pressure source supplies at a rate of 1.45 psi (0.10 bar) to 4.35 psi (0.30 bar) for each second. Monitor the movement of the pressure until the pressure indication becomes stable.
   (3) Do an analysis of the results:
  • If the reference pressure is lower than 42 psi (2.90 bar), then the pressure regulation test is NOT OK - Low Press.
  • If the reference pressure is higher than 52 psi (3.59 bar), then the pressure regulation test is NOT OK - High Press.
  • If the reference pressure is between 42 psi (2.90 bar) and 52 psi (3.59 bar), then the pressure regulation test is OK.
Subtask 36-11-00-480-083-A ** ON A/C NOT FOR ALL
O. Installation of the tool for the Troubleshooting Test of the PRV 4001HA
F Connection of the PRV STD 6774F and 6774G (with Deactivation Screw on regulator) with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
F Connection of the PRV STD 6774B and 6714D (without Deactivation Screw on Regulator) with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
F Connection of the PRV STD 6774E (with Deactivation Screw on Regulator) with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
   (1) Install the tool for the leak test on the sense line connected between the PRV 4001HA and the Temperature Limitation Thermostat 10HA1 (10HA2).
   (2) Disconnection of the sense line.
     (a) Loosen the pneumatic union a quarter turn with a WRENCH - SPANNER.
     (b) Shake the sense line with your hand to prevent cross thread damage to the pneumatic union.
     (c) Turn the union with your hand and not with a WRENCH - SPANNER, to prevent damage to the fitting end of the sense line.
     (d) Disconnect the sense line from the PRV 4001HA.
   (3) Put the blanking plug (T16) on the PRV 4001HA. TORQUE to between 1.1 and 0.9 m.daN (97.35 and 79.65 lbf.in ) T
   (4) For PRV standard 6774E, 6774F and 6774G:
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.
     (a) Install the adaptor (T15) or (T19) to the deactivation screw port. Use your hand to tighten the adaptor.
     (b) Connect the sense line tester (T10) to the test port adaptor (T15) or (T19).
     (c) Connect the sense line tester (T10) with the hose (T05) to the bleed-test set connector (14).
     (d) Connect the sense line tester (T10) with the hose (T04) to the bleed-test set connector (9).
   (5) For PRV standard 6774B and 6714D:
     (a) Install the adaptor (T25) to the test port of the PRV.
     (b) Connect the sense line tester (T10) with the hose (T18) to the test port adaptor (T25).
     (c) Connect the sense line tester (T10) with the hose (T05) to the bleed-test set connector (14).
     (d) Connect the sense line tester (T10) with the hose (T04) to the bleed-test set connector (9).
   (6) Connect the 28VDC electrical cord (T03) between the electrical inlet (11) of the 99127B03 BLEED TEST SET and an external SUPPLY - 28 VDC, ELECTRICAL.
  • Start the SUPPLY - 28 VDC, ELECTRICAL.
   (7) Do the power up of the 99127B03 BLEED TEST SET:
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) 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.
NOTE: Set the pressure gauge (5) to ON. The pressure value shown on the LCD screen must be equal to 0 psi (0.00 bar). If it is not equal to 0 psi (0.00 bar), push the ON button for 10 seconds.
     (b) Connect an AIR SOURCE - REGULATED, FILTERED, DRY with the pneumatic adaptor (T02) to supply air pressure through Item (1).
     (c) Pressurize the 99127B03 BLEED TEST SET:
       1 Open the main pressure-source shut-off valve slowly and pressurize the 99127B03 BLEED TEST SET (T01) to 100 psi (6.89 bar).
Subtask 36-11-00-720-082-A ** ON A/C NOT FOR ALL
P. Troubleshooting Test of the PRV 4001HA
F Connection of the PRV STD 6774F and 6774G (with Deactivation Screw on regulator) with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
F Connection of the PRV STD 6774B and 6714D (without Deactivation Screw on Regulator) with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
F Connection of the PRV STD 6774E (with Deactivation Screw on Regulator) with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
   (1) Install the tool for the troubleshooting test.
   (2) Do the power up of the 99127B03 BLEED TEST SET:
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) Make sure that the 99127B03 BLEED TEST SET is electrically powered up:
  • If the 28VDC is supplied through an external power supply, turn the power supply to ON.
     (b) Set the pressure gauge (5) to ON:
       1 Make sure that the pressure value shown on the LCD screen is equal to 0 psi (0 bar).
       2 If it is not equal to 0 psi (0 bar), push the ON button for 10 seconds.
     (c) Pressurize the 99127B03 BLEED TEST SET:
       1 Open the main pressure-source shutoff valve slowly and pressurize the 99127B03 BLEED TEST SET (T01) to 100 psi (6.89 bar).
   (3) Do the test:
ACTION
RESULT
1.On the sense line tester:
  • Open valves 1 and 2.

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 between 21 psi (1.45 bar) and 22 psi (1.52 bar).
On the 99127B03 BLEED TEST SET:
  • The LCD (5) shows the pressure value.
4.On the sense line tester:
  • Close valve 1.
On the sense line tester:
  • Valve 1 is not aligned with the pneumatic duct.
5.On the 99127B03 BLEED TEST SET:
  • Do a check of the pressure value shown on the LCD (5).
On the 99127B03 BLEED TEST SET:
  • The pressure is more or equal to 11 psi (0.76 bar).
Subtask 36-11-00-720-120-A ** ON A/C NOT FOR ALL
Q. Leak test of the sense line between the PRV and the PRV control solenoid with Bleed Test Set PN 99127B03.
F Connection of the PRV STD 6774F and 6774G (with Deactivation Screw on regulator) with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
F Connection of the PRV STD 6774B and 6714D (without Deactivation Screw on Regulator) with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
F Connection of the PRV STD 6774E (with Deactivation Screw on Regulator) with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
   (1) Keep the installation of the tool equal to the functional test of the sense line between the PRV and the PRV control solenoid with the 99127B03 BLEED TEST SET (Ref. AMM TASK 36-11-00-720-010).
   (2) Apply soap solution to the unions of the sense line between the PRV (4001HA) and the PRV control solenoid (10HA).
   (3) Do the leak test as follows:
Action
Result
On the sense line tester:
  • Open valves 1 and 2.
On the sense line tester:
  • The two valves are aligned with the pneumatic ducts.
On the test set 99127B03 BLEED TEST SET:
  • Set the blue valve (7) to the ON position.
On the test set 99127B03 BLEED TEST SET:
  • With the pressure gauge A (3), increase the pressure to between 21 psi (1.45 bar) and 22 psi (1.52 bar).
On the test set 99127B03 BLEED TEST SET:
  • The pressure value shows on the LCD (5).
On the sense line between the PRV and the PRV control solenoid:
  • Look for signs of leakage.
On the sense line between the PRV and the PRV control solenoid:
  • Soap bubbles occur in the soap solution at the unions.
  • Listen for possible hissing noise along the sense line installation length.
4. Procedure
Subtask 36-11-00-720-073-D ** ON A/C NOT FOR ALL
A. Health Check Procedure for the Pressure Regulation Function
NOTE: For each test given in this procedure, you can refer to the Job Set-Up paragraph with the same title.
   (1) Do the minimum opening pressure-test of the PRV with the 99127B03 BLEED TEST SET:
     (a) If the PRV opens at the given pressure:
       1 Continue the health check procedure from step 4.A.(2).
     (b) If the PRV does not open at the given pressure:
       1 Do the functional test of the sense line between the PRV and the PRV control solenoid with the 99127B03 BLEED TEST SET (Ref. AMM TASK 36-11-00-720-010):
         a If the functional test result is equal to or higher than the given pressure:
         b If the functional test result is lower than the given pressure, do the leak test of the sense line between the PRV and the PRV control solenoid with the 99127B03 BLEED TEST SET, go to Para. 3.P:
   (2) Do the opening/closing test of PRV 4001HA with the 99127B03 BLEED TEST SET:
     (a) If the PRV opens at the given pressure:
       1 Continue the health check procedure from step 4.A.(3).
     (b) If the PRV does not open at the given pressure:
       1 Do the functional test of the sense line between the PRV and the PRV control solenoid with the 99127B03 BLEED TEST SET (Ref. AMM TASK 36-11-00-720-010):
         a If the functional test result is equal to or higher than the given pressure:
         b If the functional test result is lower than the given pressure, do the leak test of the sense line between the PRV and the PRV control solenoid with the 99127B03 BLEED TEST SET, go to Para. 3.P:
   (3) Do the pressure regulation test of the PRV:
     (a) If the PRV adjusts the pressure correctly (test OK):
       1 Do the steps given in the Para. 5. Close-Up.
     (b) If the PRV does not operate correctly (high pressure):
       1 Replace the PRV (Ref. AMM TASK 36-11-52-000-042) and (Ref. AMM TASK 36-11-52-400-042).
       2 Do the health check procedure again from step 4.A.(1).
     (c) If the PRV does not operate correctly (low pressure):
       1 Do the functional test of the sense line between the PRV and the PRV control solenoid with the 99127B03 BLEED TEST SET (Ref. AMM TASK 36-11-00-720-010):
         a If the functional test result is equal to or higher than the given pressure:
         b If the functional test result is lower than the given pressure:
  • Do the leak test of the sense line between the PRV and the PRV control solenoid with the 99127B03 BLEED TEST SET, go to Para. 3.P.
  • If there is a leak in the sense line, replace the sense line between the PRV and the PRV control solenoid (Ref. AMM TASK 36-11-49-000-820) and (Ref. AMM TASK 36-11-49-400-820).
  • Do the health check procedure again from step 4.A.(1).
  • If there is no leak in the sense line, go to step 4.A.(4).
   (4) Do the troubleshooting test of PRV 4001HA:
     (a) If the test result is equal to or higher than the given pressure:
     (b) If the test result is lower than the given pressure:
Subtask 36-11-00-720-073-E ** ON A/C NOT FOR ALL
A. Health Check Procedure for the Pressure Regulation Function
NOTE: For each test given in this procedure, you can refer to the Job Set-Up paragraph with the same title.
   (1) Do the minimum opening pressure-test of PRV with the 99127B03 BLEED TEST SET:
     (a) If the PRV opens at the given pressure:
       1 Continue the health check procedure from step 4.A.(2).
     (b) If the PRV does not open at the given pressure:
       1 Do the functional test of the sense line between the PRV and the PRV control solenoid with the 99127B03 BLEED TEST SET (Ref. AMM TASK 36-11-00-720-010):
         a If the functional test result is equal to or higher than the given pressure:
         b If the functional test result is lower than the given pressure, do the leak test of the sense line between the PRV and the PRV control solenoid with the 99127B03 BLEED TEST SET, go to Para. 3.P:
   (2) Do the opening/closing test of PRV 4001HA with the 99127B03 BLEED TEST SET:
     (a) If the PRV opens at the given pressure:
       1 Continue the health check procedure from step 4.A.(3).
     (b) If the PRV does not open at the given pressure:
       1 Do the functional test of the sense line between the PRV and the PRV control solenoid with the 99127B03 BLEED TEST SET (Ref. AMM TASK 36-11-00-720-010):
         a If the functional test result is equal to or higher than the given pressure:
         b If the functional test result is lower than the given pressure, do the leak test of the sense line between the PRV and the PRV control solenoid with the 99127B03 BLEED TEST SET, go to Para. 3.P:
   (3) Do the pressure regulation test of the PRV:
     (a) If the PRV adjusts the pressure correctly (test OK):
       1 Do the steps given in the Para. 5. Close-Up.
     (b) If the PRV does not operate correctly (high pressure):
       1 Replace the PRV (Ref. AMM TASK 36-11-52-000-010) and (Ref. AMM TASK 36-11-52-400-010).
       2 Do the health check procedure again from step 4.A.(1).
     (c) If the PRV does not operate correctly (low pressure):
       1 Do the functional test of the sense line between the PRV and the PRV control solenoid with the 99127B03 BLEED TEST SET (Ref. AMM TASK 36-11-00-720-010):
         a If the functional test result is equal to or higher than the given pressure:
         b If the functional test result is lower than the given pressure:
  • Do the leak test of the sense line between the PRV and the PRV control solenoid with the 99127B03 BLEED TEST SET, go to Para. 3.P.
  • If there is a leak in the sense line, replace the sense line between the PRV and the PRV control solenoid (Ref. AMM TASK 36-11-49-000-018) and (Ref. AMM TASK 36-11-49-400-018).
  • Do the health check procedure again from step 4.A.(1).
  • If there is no leak in the sense line, go to step 4.A.(4).
   (4) Do the troubleshooting test of PRV 4001HA:
     (a) If the test result is equal to or higher than the given pressure:
     (b) If the test result is lower than the given pressure:
Subtask 36-11-00-720-073-H ** ON A/C NOT FOR ALL
A. Health Check of Pressure Regulation Function
NOTE: For each test given in this procedure, you can refer to the Job Set-Up paragraph with the same title.
   (1) Do the minimum opening pressure-test of the PRV with the 99127B03 BLEED TEST SET:
     (a) If the PRV opens at the given pressure:
       1 Continue the health check procedure from step 4.A.(2).
     (b) If the PRV does not open at the given pressure:
       1 Do the functional test of the sense line between the PRV and the PRV control solenoid with the 99127B03 BLEED TEST SET (Ref. AMM TASK 36-11-00-720-010):
         a If the functional test result is equal to or higher than the given pressure:
         b If the functional test result is lower than the given pressure, do the leak test of the sense line between the PRV and the PRV control solenoid with the 99127B03 BLEED TEST SET, go to Para. 3.P:
   (2) Do the opening/closing test of PRV 4001HA with the 99127B03 BLEED TEST SET:
     (a) If the PRV opens at the given pressure:
       1 Continue the health check procedure from step 4.A.(3).
     (b) If the PRV does not open at the given pressure:
       1 Do the functional test of the sense line between the PRV and the PRV control solenoid with the 99127B03 BLEED TEST SET (Ref. AMM TASK 36-11-00-720-010):
         a If the functional test result is equal to or higher than the given pressure:
         b If the functional test result is lower than the given pressure, do the leak test of the sense line between the PRV and the PRV control solenoid with the 99127B03 BLEED TEST SET, go to Para. 3.P:
   (3) Do the pressure regulation test of the PRV:
     (a) If the PRV adjusts the pressure correctly (test OK):
       1 Do the steps given in the Para. 5. Close-Up.
     (b) If the PRV does not operate correctly (high pressure):
       1 Replace the PRV (Ref. AMM TASK 36-11-52-000-040) and (Ref. AMM TASK 36-11-52-400-040).
       2 Do the health check procedure again from step 4.A.(1).
     (c) If the PRV does not operate correctly (low pressure):
       1 Do the functional test of the sense line between the PRV and the PRV control solenoid with the 99127B03 BLEED TEST SET (Ref. AMM TASK 36-11-00-720-010):
         a If the functional test result is equal to or higher than the given pressure:
         b If the functional test result is lower than the given pressure:
  • Do the leak test of the sense line between the PRV and the PRV control solenoid with the 99127B03 BLEED TEST SET, go to Para. 3.P.
  • If there is a leak in the sense line, replace the sense line between the PRV and the PRV control solenoid (Ref. AMM TASK 36-11-49-000-029) and (Ref. AMM TASK 36-11-49-400-029).
  • Do the health check procedure again from step 4.A.(1).
  • If there is no leak in the sense line, go to step 4.A.(4).
   (4) Do the troubleshooting test of PRV 4001HA:
     (a) If the test result is equal to or higher than the given pressure:
     (b) If the test result is lower than the given pressure:
5. Close-up
Subtask 36-11-00-080-078-A ** ON A/C NOT FOR ALL
A. Removal of the tool for the Troubleshooting Test of the PRV 4001HA
F Connection of the PRV STD 6774F and 6774G (with Deactivation Screw on regulator) with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
F Connection of the PRV STD 6774B and 6714D (without Deactivation Screw on Regulator) with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
F Connection of the PRV STD 6774E (with Deactivation Screw on Regulator) with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
   (1) Remove the blanking plug (T16) from the PRV 4001HA.
   (2) Connect the sense line:
     (a) Tighten the pneumatic union a quarter turn with a WRENCH - SPANNER.
     (b) Shake the sense line with your hand to prevent cross thread damage to the pneumatic union.
     (c) Turn the union with your hand and not with a WRENCH - SPANNER, to prevent damage to the fitting end of the sense line.
     (d) Connect the sense line to the PRV 4001HA.
   (3) Remove the tool for the leak test from the sense line connected between the PRV 4001HA and the HPV 4000HA (Ref. AMM TASK 36-11-00-720-008).
     (a) Connect the sense line to the PRV 4001HA.
Subtask 36-11-00-080-079-A ** ON A/C NOT FOR ALL
B. Removal of the tool for the Pressure Regulating Test of the PRV
   (1) For PRV standard 6774B and 6714D with the deactivation screws on the butterfly valve and with the coupling tubes on the actuator:
F Connection of the PRV STD 6774B and 6714D (with Deactivation Screw on Butterfly Valve and with coupling tube on actuator) with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
     (a) Stop the SUPPLY - 28 VDC, ELECTRICAL.
     (b) 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.
     (c) Disconnect the 99127B03 BLEED TEST SET (T01) from the two adaptors (T25):
       1 Disconnect the hose (T05) from the bleed-test set connector (14) and the adaptor (T25).
       2 Disconnect the hose (T05) from the bleed-test set connector (10) and the "Y" adaptor (T06).
       3 Disconnect the hose (T04) from the bleed-test set connector (9) and the "Y" adaptor (T06).
       4 Disconnect the "Y" adaptor (T06) from the adaptor (T25) installed in the test port of the PRV.
     (d) Disconnect and remove the two adaptors (T25) from the PRV.
     (e) Connect the sense line:
CAUTION: USE A SECOND WRENCH TO APPLY COUNTERTORQUE TO THE UNION WHEN YOU DISCONNECT/CONNECT THE PNEUMATIC LINES ON UNIONS.
       1 Remove the blanking plugs from the disconnected line ends.
       2 Make sure that there is no grease or oil on the pneumatic and sense line unions.
       3 Connect the sense line to the PRV.
NOTE: To prevent damage to the fitting end of the sense line, turn the union with your hand and not with a WRENCH - SPANNER.
       4 Do the double torque procedure on the union of the sense line to between 1.69 and 1.52 m.daN (12.46 and 11.21 lbf.ft ) T:
         a Torque a first time 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 a second time the union to the given value.
       5 Paint a mark on the union of the sense line.
     (f) Install the blanking cap on the test port of the PRV.
     (g) TORQUE the blanking cap to between 1.2 and 1 m.daN (106.19 and 88.50 lbf.in ) T.
     (h) Safety it 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.
       1 Safety the blanking cap with the 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.
   (2) For PRV standard 6774E with deactivation screw no. 1 on regulator:
F Connection of the PRV STD 6774E (with Deactivation Screw on regulator) with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
     (a) Stop the SUPPLY - 28 VDC, ELECTRICAL.
     (b) Disconnect the 28VDC electrical cord (T03) from the:
  • Electrical inlet (11) of the 99127B03 BLEED TEST SET (T01)
  • External SUPPLY - 28 VDC, ELECTRICAL.
     (c) Disconnect the 99127B03 BLEED TEST SET (T01) from the adapators (T14) or (T25) and (T29):
       1 Disconnect the hose (T05) from the bleed-test set connector (14) and the adaptor (T29).
       2 Disconnect the pneumatic adaptor (T29) from the adaptor (T15) or (T19) installed in the coupling tube of the PRV.
       3 Disconnect the hose (T05) from the bleed-test set connector (10) and the "Y" adaptor (T06).
       4 Disconnect the hose (T04) from the bleed-test set connector (9) and the "Y" adaptor (T06).
       5 Disconnect the "Y" adaptor (T06) from the test port adaptor (T14) or (T25) installed in the test port of the PRV.
     (d) Disconnect and remove:
  • The adaptor (T15) or (T19)
  • The test port adaptor (T14) or (T25)
    from the bleed-pressure regulating valve.
     (e) Install the deactivation screw no. 1:
CAUTION: BEFORE YOU INSTALL THE DEACTIVATION SCREW, MAKE SURE THAT THE PREFORMED PACKING IS INSTALLED ON THE DEACTIVATION SCREW.
       1 Install the deactivation screw No. 1 on the PRV:
NOTE: If the adaptor (T19) is installed, the deactivation screw No. 1 has a preformed packing.
  • Replace the preformed packing.
  • Install the deactivation screw No. 1 on the PRV.
       2 Tighten the deactivation screw No. 1 by hand.
     (f) Install the blanking cap on the test port of the PRV.
     (g) TORQUE the blanking cap to between 0.80 and 0.65 m.daN (70.80 and 57.52 lbf.in ) T.
     (h) Safety 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.
       1 Safety the deactivation screw No. 1 and the blanking cap with 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.
   (3) For PRV standard 6774F and 6774G with deactivation screw No. 1 on regulator:
F Connection of the PRV STD 6774F and 6774G (with Deactivation Screw on regulator) with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
     (a) Stop the SUPPLY - 28 VDC, ELECTRICAL.
     (b) Disconnect the 28VDC electrical cord (T03) from the:
  • Electrical inlet (11) of the 99127B03 BLEED TEST SET (T01)
  • External SUPPLY - 28 VDC, ELECTRICAL.
     (c) Disconnect the 99127B03 BLEED TEST SET (T01) from the adapators (T14) or (T25) and (T29):
       1 Disconnect the hose (T05) from the bleed-test set connector (14) and the adaptor (T29).
       2 Disconnect the pneumatic adaptor (T29) from the adaptor (T15) or (T19) installed in the coupling tube of the PRV.
       3 Disconnect the hose (T05) from the bleed-test set connector (10) and the "Y" adaptor (T06).
       4 Disconnect the hose (T04) from the bleed-test set connector (9) and the "Y" adaptor (T06).
       5 Disconnect the "Y" adaptor (T06) from the test port adaptor (T14) or (T25) installed in the test port of the PRV.
     (d) Disconnect and remove:
  • The adaptor (T15) or (T19)
  • The test port adaptor (T14) or (T25)
    from the bleed-pressure regulating valve.
     (e) Installation of the deactivation screw No. 1:
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.
       1 Install the deactivation screw No. 1 on the PRV.
NOTE: If the adaptor (T19) is installed, the deactivation screw No. 1 has a preformed packing:
  • Replace the preformed packing.
  • Install the deactivation screw No. 1 on the PRV.
       2 TORQUE the deactivation screw No. 1 to between 0.6 and 0.4 m.daN (53.10 and 35.40 lbf.in ) T.
     (f) Install the blanking cap on the test port of the PRV.
     (g) TORQUE the blanking cap to between 0.80 and 0.65 m.daN (70.80 and 57.52 lbf.in ) T.
     (h) Safety 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.
       1 Safety the deactivation screw No. 1 and the blanking cap with 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.
Subtask 36-11-00-080-080-A ** ON A/C NOT FOR ALL
C. Removal of the Tool for Opening/Closing Test
   (1) Disconnect the electrical connector cable (T12) from the connector (12) of the 99127B03 BLEED TEST SET and PRV 4001HA electrical connector.
   (2) Disconnect the electrical connector cable (T13) from the 99127B03 BLEED TEST SET and the electrical connector (4001HA-A):
     (a) Make sure that the 99127B03 BLEED TEST SET is not powered up.
     (b) Disconnect the cable (T13) from the electrical connector (4001HA-A).
     (c) Loosen the screws of the connector (29).
     (d) Disconnect the cable (T13) from the connector (29).
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 electrical connector 4001HA-A to PRV 4001HA.
   (4) For PRV standard 6774B and 6714D:
F Connection of the PRV STD 6774B and 6714D (without the Deactivation Screw on the Regulator of the PRV) with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
     (a) With the pressure regulator knob A (3), decrease the pressure to 0 psi (0.00 bar).
     (b) Disconnect the hose (T05) from the bleed-test set connector (14) and the "Y" adaptor (T06).
     (c) Disconnect the hose (T04) from the bleed-test set connector (9) and the "Y" adaptor (T06).
     (d) Disconnect the "Y" adaptor (T06) from the test port adaptor (T14) or (T25) installed in the test port of the PRV.
     (e) Disconnect the test port adaptor (T14) or (T25) from the test port of the PRV.
     (f) Stop the SUPPLY - 28 VDC, ELECTRICAL.
     (g) 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.
     (h) Install the blanking cap on the test port of the PRV.
     (i) TORQUE the blanking cap to between 1.2 and 1 m.daN (106.19 and 88.50 lbf.in ) T.
     (j) Safety with 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 Safety the blanking cap with lockwire 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.
   (5) For PRV standard 6774E:
F Connection of the PRV STD 6774E(with the Deactivation Screw on the Regulator of the PRV) with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
     (a) With the pressure regulator knob A (3), decrease the pressure to 0 psi (0.00 bar).
     (b) Disconnect the hose (T05) from the bleed-test set connector (14) and the "Y" adaptor (T06).
     (c) Disconnect the hose (T04) from the bleed-test set connector (9) and the "Y" adaptor (T06).
     (d) Disconnect the "Y" adaptor (T06) from the test port adaptor (T14) or (T25) installed in the test port of the PRV.
     (e) Disconnect the test port adaptor (T14) or (T25) from the test port of the PRV.
     (f) Disconnect the pressure-source shutoff valve (T11) from the adaptor (T15) or (T19).
     (g) Disconnect the adaptor (T15) or (T19) from the PRV.
     (h) Stop SUPPLY - 28 VDC, ELECTRICAL.
     (i) Disconnect the 28VDC electrical cord (T03) from the:
  • Electrical inlet (11) of the 99127B03 BLEED TEST SET (T01)
  • External SUPPLY - 28 VDC, ELECTRICAL.
     (j) Install the deactivation screw:
CAUTION: BEFORE YOU INSTALL THE DEACTIVATION SCREW, MAKE SURE THAT THE PREFORMED PACKING IS INSTALLED ON THE DEACTIVATION SCREW.
       1 Install the deactivation screw on the PRV:
NOTE: The deactivation screw has a preformed packing, if the adaptor (T19) is installed.
  • Replace the preformed packing.
  • Install the deactivation screw on the PRV.
       2 Tighten the deactivation screw with your hand.
     (k) Install the blanking cap on the test port of the PRV.
     (l) TORQUE the blanking cap to between 0.80 and 0.65 m.daN (70.80 and 57.52 lbf.in ) T.
     (m) Safety with 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 Safety the deactivation screw and the blanking cap with lockwire 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.
   (6) For PRV standard 6774F and 6774G:
F Connection of the PRV STD 6774F and 6774G (with the Deactivation Screw on the Regulator of the PRV) with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
     (a) With the pressure regulator knob A (3), decrease the pressure to 0 psi (0.00 bar).
     (b) Disconnect the hose (T05) from the bleed-test set connector (14) and the "Y" adaptor (T06).
     (c) Disconnect the hose (T04) from the bleed-test set connector (9) and the "Y" adaptor (T06).
     (d) Disconnect the "Y" adaptor (T06) from the test port adaptor (T14) or (T25) installed in the test port of the PRV.
     (e) Disconnect the test port adaptor (T14) or (T25) from the test port of the PRV.
     (f) Disconnect the pressure-source shutoff valve (T11) from the adaptor (T15) or (T19).
     (g) Disconnect the adaptor (T15) or (T19) from the PRV.
     (h) Stop the SUPPLY - 28 VDC, ELECTRICAL.
     (i) 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.
     (j) Install the deactivation screw:
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.
       1 Install the deactivation screw on the PRV:
NOTE: If the adaptor (T19) is installed, the deactivation screw has a preformed packing.
  • Replace the preformed packing.
  • Install the deactivation screw on the PRV.
       2 TORQUE the deactivation screw to between 0.6 and 0.4 m.daN (53.10 and 35.40 lbf.in ) T.
     (k) Install the blanking cap on the test port of the PRV.
     (l) TORQUE the blanking cap to between 0.80 and 0.65 m.daN (70.80 and 57.52 lbf.in ) T.
     (m) Safety with 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 Safety the deactivation screw and the blanking cap with lockwire 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.
Subtask 36-11-00-080-081-A ** ON A/C NOT FOR ALL
D. Removal of the Tool for Minimum Opening Pressure
F Connection of the PRV STD 6774B and 6714D with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
F Connection of the PRV STD 6774E, 6774F and 6774G with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
   (1) Stop the SUPPLY - 28 VDC, ELECTRICAL.
   (2) 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.
   (3) Disconnect the 99127B03 BLEED TEST SET (T01) from the adaptor (T14) or (T25):
     (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 test port adaptor (T14) or (T25) installed in the test port of the PRV.
   (4) Disconnect the test port adaptor (T14) or (T25) from the test port of the PRV.
   (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) Installation 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.
     (a) Safety the blanking cap with 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.
Subtask 36-11-00-410-119-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.
NOTE: Make sure that there are no tools missing in the 99127B03 BLEED TEST SET and 99127-231 TEST SET BLEED - KIT.
   (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 36-11-00-440-080-A ** ON A/C NOT FOR ALL
F. Reactivation of the Thrust Reverser
   (1) Make the thrust reverser serviceable after maintenance (Ref. AMM TASK 78-30-00-081-041).
Subtask 36-11-00-410-120-A ** ON A/C NOT FOR ALL
G. 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) FOR [4LL] (SOCKET)
     (a) Close the access door 191MB.
   (3) Remove the access platform(s).
   (4) Remove the WARNING NOTICE(S).
Subtask 36-11-00-410-119-B ** ON A/C NOT FOR ALL
H. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
NOTE: Make sure that there are no tools missing in the 99127B03 BLEED TEST SET and 99127-231 TEST SET BLEED - KIT.
   (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 36-11-00-440-080-B ** ON A/C NOT FOR ALL
I. Reactivation of the Thrust Reverser
   (1) Make the thrust reverser serviceable after maintenance (Ref. AMM TASK 78-30-00-081-041).
Subtask 36-11-00-410-120-B ** ON A/C NOT FOR ALL
J. 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) FOR [4LL] (SOCKET)
     (a) Close the access door 191MB.
   (3) Remove the access platform(s).
   (4) Remove the WARNING NOTICE(S).
Subtask 36-11-00-862-095-A ** ON A/C NOT FOR ALL
K. De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
[Rev.10 from 2021] 2026.04.01 01:07:12 UTC
"Aviabrain" 2025