W DOC AIRBUS | AMM A320F

Installation of the Pressure Indicating Tubes

TASK 36-21-49-400-010-B
Installation of the Pressure Indicating Tubes

1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific
AR
WARNING NOTICE(S)
No specific
Torque wrench: range to between 150 and 135 lbf.in (1.70 and 1.53 m.daN ) T
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.V02-126)
lockwire
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
FOR [1000EM1] (ENGINE-1)
437AL, 438AR, 451AL, 452AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR, 461AL, 462AR
 D. Referenced Information
REFERENCE
DESIGNATION
TASK 24-41-00-861-002-A-01
Energize the Aircraft Electrical Circuits from the APU
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-01
De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A
De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01
De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02
De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 36-21-49-000-010-B
Removal of the Pressure Indicating Tubes
TASK 70-23-11-911-013-A
General Torque Tightening Techniques
TASK 70-40-11-911-014-A
Locking Devices General Information
TASK 71-13-00-010-010-A
Opening of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 71-13-00-410-010-A
Closing of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 78-30-00-040-012-A
Deactivation of the Thrust Reverser Hydraulic Control Unit (HCU) for Ground Maintenance
TASK 78-30-00-440-012-A
Re-activation of the Thrust Reverser Hydraulic Control Unit (HCU) after Ground Maintenance
TASK 78-32-00-010-010-A
Opening of the Thrust Reverser Halves
TASK 78-32-00-410-010-A
Closing of the Thrust Reverser Halves
F Pressure Indicating Tubes and Hoses
F Pressure Indicating Tubes and Hoses (PRE SB36-1040, PRE SBN36-0007)
F Pressure Indicating Tubes and Hoses (POST SB36-1040, POST SBN36-0007)
3. Job Set-up
Subtask 36-21-49-860-051-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
   (1) Make sure that the aircraft electrical circuits are energized (Ref. AMM TASK 24-41-00-861-002) or (Ref. AMM TASK 24-41-00-861-002).
   (2) Make sure that the engine 1(2) shut down occurred not less than 5 minutes before you do this procedure.
   (3) On the AIR COND panel 30VU:
  • Make sure that the ENG 1(2) BLEED pushbutton switch is released (the OFF legend is on),
  • Make sure that the APU BLEED pushbutton switch is released (the ON legend is off),
  • Make sure that the WARNING NOTICE(S) to tell persons not to operate the pneumatic system is in its position.
   (4) On the ENG panel 115VU:
  • Make sure that the WARNING NOTICE(S) to tell persons not to start the engine 1(2) is in its position.
   (5) On the HP ground connector:
  • Make sure that the WARNING NOTICE(S) to tell persons not to pressurize the pneumatic system is in its position.
   (6) 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,
  • Make sure that the WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2) is in its position.
   (7) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in its position below the engine.
Subtask 36-21-49-010-057-A ** ON A/C NOT FOR ALL
B. Get Access
   (1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-010):
     (a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
     (b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
   (2) Make sure that the thrust reverser doors are open (Ref. AMM TASK 78-32-00-010-010):
     (a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
     (b) FOR [1000EM2] (ENGINE-2)
461AL 462AR
Subtask 36-21-49-040-051-A ** ON A/C NOT FOR ALL
C. Make sure that the thrust reverser Hydraulic Control Unit (HCU) is deactivated (Ref. AMM TASK 78-30-00-040-012).
4. Procedure
Subtask 36-21-49-420-051-C ** ON A/C NOT FOR ALL
A. Installation of the Pressure Indicating Tubes
CAUTION: DO NOT APPLY LUBRICANT TO THE THREADS OF PRV SENSE LINE UNIONS AND HP BLEED OVERRIDE SOLENOID SENSE LINE UNIONS. LUBRICANT CAN CAUSE POLLUTION OF THE PNEUMATIC SYSTEM.
   (1) Put the pressure indicating tubes (4) and (5) in their positions on the engine and connect the tube nuts. Tighten the tube nuts with your hand.
NOTE: It may be necessary and is permissible to carefully hand-form the tube at installation to eliminate any pre-load on the tube.
   (2) Install the support clips, the bolts and the spacers in the positions written during the removal (Ref. AMM TASK 36-21-49-000-010).
   (3) TORQUE the tube nuts on the pressure indicating tubes (4) and (5) to between 150 and 135 lbf.in (1.70 and 1.53 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
   (4) Examine the tubes for clearance between adjacent parts.
   (5) Safety the tube nuts on the pressure indicating tubes (4) and (5) with lockwire (Material No.V02-126) (Ref. AMM TASK 70-40-11-911-014).
Subtask 36-21-49-420-052-A ** ON A/C NOT FOR ALL
B. Installation of the Pressure Indicating Tubes (PRE SB36-1040, PRE SBN36-0007)
F Pressure Indicating Tubes and Hoses (PRE SB36-1040, PRE SBN36-0007) ** ON A/C NOT FOR ALL
CAUTION: DO NOT APPLY LUBRICANT TO THE THREADS OF PRV SENSE LINE UNIONS AND HP BLEED OVERRIDE SOLENOID SENSE LINE UNIONS. LUBRICANT CAN CAUSE POLLUTION OF THE PNEUMATIC SYSTEM.
   (1) Put the pressure indicating tubes (3), (4), (5), (6), and (8) in their positions on the engine and connect the tube nuts. Tighten the tube nuts with your hand.
NOTE: It may be necessary and is permissible to carefully handform the tube at installation to eliminate any pre-load on the tube.
   (2) Install the support clips, bolts, nuts, spacers, sleeve and washers in the positions written during the removal (Ref. AMM TASK 36-21-49-000-010).
   (3) TORQUE the tube nuts on the pressure indicating tube (3), (4), (5), (6) and (8) to between 150 and 135 lbf.in (1.70 and 1.53 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
   (4) Examine the tubes for clearance from the adjacent parts.
   (5) Safety the tube nuts on the pressure indicating tubes (3), (4), (5), (6) and (8) with lockwire (Material No.V02-126) (Ref. AMM TASK 70-40-11-911-014).
Subtask 36-21-49-420-053-A ** ON A/C NOT FOR ALL
C. Installation of the Pressure Indicating Tubes (POST SB36-1040, POST SBN36-0007)
F Pressure Indicating Tubes and Hoses (POST SB36-1040, POST SBN36-0007) ** ON A/C NOT FOR ALL
CAUTION: DO NOT APPLY LUBRICANT TO THE THREADS OF PRV SENSE LINE UNIONS AND HP BLEED OVERRIDE SOLENOID SENSE LINE UNIONS. LUBRICANT CAN CAUSE POLLUTION OF THE PNEUMATIC SYSTEM.
   (1) Put the pressure indicating tubes (4) and (5) in their positions on the engine and connect the tube nuts. Tighten the tube nuts with your hand.
NOTE: It may be necessary and is permitted to carefully hand-form the tube during installation to eliminate any pre-load on the tube.
   (2) Install the support clips, the bolts and the spacers in the position written during the removal (Ref. AMM TASK 36-21-49-000-010).
   (3) TORQUE the tube nuts on the pressure indicating tubes (4) and (5) to between 150 and 135 lbf.in (1.70 and 1.53 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
   (4) Examine the tubes for clearance between the adjacent parts.
   (5) Safety the tube nuts on the pressure indicating tubes (4) and (5) with lockwire (Material No.V02-126) (Ref. AMM TASK 70-40-11-911-014).
5. Close-up
Subtask 36-21-49-410-055-A ** ON A/C NOT FOR ALL
A. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Close the thrust reverser halves (Ref. AMM TASK 78-32-00-410-010):
     (a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
     (b) FOR [1000EM2] (ENGINE-2)
461AL 462AR
Subtask 36-21-49-440-051-A ** ON A/C NOT FOR ALL
B. Activate the thrust reverser HCU (Ref. AMM TASK 78-30-00-440-012).
Subtask 36-21-49-410-053-A ** ON A/C NOT FOR ALL
C. Close Access
   (1) Close the fan cowls (Ref. AMM TASK 71-13-00-410-010):
     (a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
     (b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
   (2) Remove the WARNING NOTICE(S).
   (3) Remove the access platform(s).
Subtask 36-21-49-862-051-A ** ON A/C NOT FOR ALL
D. De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002) or (Ref. AMM TASK 24-41-00-862-002).
[Rev.10 from 2021] 2026.04.01 01:16:19 UTC
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