W DOC AIRBUS | AMM A320F

Functional Test of the Rain Repellent System (with the Air Compressor)

TASK 30-45-00-720-002-A
Functional Test of the Rain Repellent System (with the Air Compressor)

WARNING: MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED BEFORE YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT. UNWANTED ELECTRICAL POWER CAN BE DANGEROUS.
WARNING: MAKE SURE THAT THE CIRCUIT BREAKERS RELATED TO THE WEATHER RADAR ARE OPENED, SAFETIED AND TAGGED.
CAUTION: DO NOT APPLY THE RAIN REPELLENT FLUID ON A DRY SURFACE.
CAUTION: REMOVE THE RAIN REPELLENT FLUID FROM THE WINDSHIELD AND FROM ALL THE OTHER SURFACES IT TOUCHES WITH SOAP AND WATER. DO THIS EACH TIME YOU APPLY THE RAIN REPELLENT FLUID.
1. Reason for the Job
NOTE: There is an alternative method for this procedure. This task gives one of the methods. For the other method, refer to the other task in this page block.
NOTE: Two persons are necessary to do this task. One person does the rain repellent test and the other person cleans the windshield with water during the test.
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
1
ACCESS PLATFORM 1M (3 FT)-ADJUSTABLE
No specific
1
AIR SOURCE 3 BAR (43.5 PSI) - REGULATED, FILTERED, DRY
98F30403000000
1
RAIN REPELLENT SYSTEM
98F30403001000
1
RAIN REPELLENT PRES
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
811
 C. Expendable Parts
FIG.ITEM
DESIGNATION
IPC-CSN
2
O-RING
AIPC 30-45-01-04-080
7
O-RING
AIPC 30-45-01-04-080
2
O-RING
AIPC 30-45-81-04-060
7
O-RING
AIPC 30-45-81-04-060
 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 52-41-00-010-002-A
Open the Avionics Compartment Doors for Access
TASK 52-41-00-410-002-A
Close the Avionics Compartment Doors after Access
F Rain-Repellent Blowout Reservoir
3. Job Set-up
Subtask 30-45-00-861-051-A
A. Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
Subtask 30-45-00-865-067-A
B. Make sure that this(these) circuit breaker(s) is(are) closed:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUANTI ICE/RAIN/RPLNT/CAPT1DB1D01
122VUANTI ICE/RAIN/RPLNT/F/O1DB2W11
Subtask 30-45-00-875-050-A ** ON A/C NOT FOR ALL
WARNING: OPEN THE PROBE HEATER CIRCUIT-BREAKERS 3DA1(2,3), 4DA1(2,3) AND 5DA1(2,3) BEFORE YOU OPEN THE CIRCUIT BREAKERS 2KS1 OR 2KS2. IF YOU DO NOT OBEY THIS SEQUENCE:
  • THIS PROBES WILL BECOME TOO HOT.
  • THIS CAN CAUSE DAMAGE TO EQUIPMENT AND INJURY TO MAINTENANCE PERSONNEL.
WARNING: MAKE SURE THAT YOU OPEN THE CIRCUIT BREAKERS AS FOLLOWS:
  • 1JH, 2JH1 AND 3JH1 BEFORE 2KS1
  • 1JH, 2JH2 AND 3JH2 BEFORE 2KS2.
IF YOU DO NOT OBEY THIS SEQUENCE, THERE IS A RISK OF ELECTROCUTION. THIS IS BECAUSE YOU WILL START CONTINUOUS IGNITION IF YOU OPEN CIRCUIT BREAKER 2KS1 OR 2KS2 FIRST.
WARNING: BEFORE YOU OPEN PHC CIRCUIT BREAKERS 2DA1(2,3), OPEN PROBE HEATER CIRCUIT-BREAKERS 1DA1(2), 3DA1(2,3), 4DA1(2,3) AND 5DA1(2,3). IF YOU DO NOT OBEY THIS SEQUENCE: - THE PROBES WILL BECOME TOO HOT. - THIS CAN CAUSE DAMAGE TO EQUIPMENT AND INJURY TO MAINTENANCE PERSONNEL.
C. Open, safety and tag these circuit breakers in this sequence:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUENGINE/1 AND 2/IGN/SYS A1JHA03
121VUENGINE/IGN/ENG1/SYS B3JH1P41
121VUENGINE/IGN/ENG1/SYS A BAT2JH1P39
121VUENGINE/IGN/ENG2/SYS B3JH2P42
121VUENGINE/IGN/ENG2/SYS A BAT2JH2P40
121VUENGINE/ENG1/FADEC B/AND EIU 14KS1R41
121VUENGINE/ENG2/FADEC B4KS2Q40
122VUANTI ICE/PROBES/1/TAT1DA1Z12
122VUANTI ICE/PROBES/2/TAT1DA2Y15
49VUANTI ICE/PROBES/PITOT/13DA1D02
122VUANTI ICE/PROBES/2/PITOT3DA2Y14
122VUANTI ICE/PROBES/3/PITOT3DA3Z16
49VUANTI ICE/PROBES/AOA/14DA1D04
122VUANTI ICE/PROBES/2/AOA4DA2Y13
122VUANTI ICE/PROBES/3/AOA4DA3Z15
122VUANTI ICE/PROBES/1/STATIC5DA1Z13
122VUANTI ICE/PROBES/2/STATIC5DA2Y11
122VUANTI ICE/PROBES/3/STATIC5DA3Z14
49VUANTI ICE/PROBES/PHC/12DA1D03
122VUANTI ICE/PROBES/PHC/22DA2Y12
122VUANTI ICE/PROBES/PHC/32DA3Y16
49VUENGINE/1/FADEC A/AND EIU 12KS1A04
49VUENGINE/2/FADEC A/AND EIU 22KS2A05
122VUANTI ICE/WINDOWS/L4DG1X14
122VUANTI ICE/WINDOWS/R4DG2W14
121VUCOM NAV/RADAR/15SQ1K13
** ON A/C NOT FOR ALL
121VUCOM NAV/RADAR/25SQ2K14
Subtask 30-45-00-875-050-B ** ON A/C NOT FOR ALL
WARNING: OPEN THE PROBE HEATER CIRCUIT-BREAKERS 3DA1(2,3), 4DA1(2,3) AND 5DA1(2,3) BEFORE YOU OPEN THE CIRCUIT BREAKERS 2KS1 OR 2KS2. IF YOU DO NOT OBEY THIS SEQUENCE:
  • THIS PROBES WILL BECOME TOO HOT.
  • THIS CAN CAUSE DAMAGE TO EQUIPMENT AND INJURY TO MAINTENANCE PERSONNEL.
WARNING: MAKE SURE THAT YOU OPEN THE CIRCUIT BREAKERS AS FOLLOWS:
  • 1JH AND 3JH1 BEFORE 2KS1
  • 1JH AND 3JH2 BEFORE 2KS2.
IF YOU DO NOT OBEY THIS SEQUENCE, THERE IS A RISK OF ELECTROCUTION. THIS IS BECAUSE YOU WILL START CONTINUOUS IGNITION IF YOU OPEN CIRCUIT BREAKER 2KS1 OR 2KS2 FIRST.
WARNING: BEFORE YOU OPEN PHC CIRCUIT BREAKERS 2DA1(2,3), OPEN PROBE HEATER CIRCUIT-BREAKERS 1DA1(2), 3DA1(2,3), 4DA1(2,3) AND 5DA1(2,3). IF YOU DO NOT OBEY THIS SEQUENCE: - THE PROBES WILL BECOME TOO HOT. - THIS CAN CAUSE DAMAGE TO EQUIPMENT AND INJURY TO MAINTENANCE PERSONNEL.
C. Open, safety and tag these circuit breakers in this sequence:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUENGINE/1 AND 2/IGN/SYS A1JHA03
121VUENGINE/IGN/ENG1/SYS B3JH1P41
121VUENGINE/IGN/ENG2/SYS B3JH2P42
** ON A/C NOT FOR ALL
121VUENGINE/ENG1/FADEC B/AND EIU 14KS1R41
** ON A/C NOT FOR ALL
121VUENGINE/ENG1/FADEC B/AND EIU 14KS1R40
** ON A/C NOT FOR ALL
121VUENGINE/ENG2/FADEC B/AND EIU24KS2Q40
** ON A/C NOT FOR ALL
121VUENGINE/ENG2/FADEC B/AND EIU24KS2R41
** ON A/C NOT FOR ALL
122VUANTI ICE/PROBES/1/TAT1DA1Z12
122VUANTI ICE/PROBES/2/TAT1DA2Y15
49VUANTI ICE/PROBES/PITOT/13DA1D02
122VUANTI ICE/PROBES/2/PITOT3DA2Y14
122VUANTI ICE/PROBES/3/PITOT3DA3Z16
49VUANTI ICE/PROBES/AOA/14DA1D04
122VUANTI ICE/PROBES/2/AOA4DA2Y13
122VUANTI ICE/PROBES/3/AOA4DA3Z15
122VUANTI ICE/PROBES/1/STATIC5DA1Z13
122VUANTI ICE/PROBES/2/STATIC5DA2Y11
122VUANTI ICE/PROBES/3/STATIC5DA3Z14
49VUANTI ICE/PROBES/PHC/12DA1D03
122VUANTI ICE/PROBES/PHC/22DA2Y12
122VUANTI ICE/PROBES/PHC/32DA3Y16
49VUENGINE/1/FADEC A/AND EIU 12KS1A04
49VUENGINE/2/FADEC A/AND EIU 22KS2A05
122VUANTI ICE/WINDOWS/L4DG1X14
122VUANTI ICE/WINDOWS/R4DG2W14
121VUCOM NAV/RADAR/15SQ1K13
Subtask 30-45-00-010-050-A
D. Get Access
   (1) Put the ACCESS PLATFORM 1M (3 FT)-ADJUSTABLE in position.
   (2) Open access door 811 (Ref. AMM TASK 52-41-00-010-002).
Subtask 30-45-00-480-050-A
E. Pressurization of the Rain Repellent System with the Air Compressor
F Rain-Repellent Blowout Reservoir
WARNING: DO NOT COMPRESS THE BLOWOUT RESERVOIR ABOVE 7 BAR (101.53 PSI). THIS CAN CAUSE INJURY TO MAINTENANCE PERSONNEL AND DAMAGE TO EQUIPMENT.
   (1) Remove the blanking plug (1) from the top of the blowout reservoir (8).
   (2) Remove and discard the O-ring (2).
   (3) Install a new AIPC 30-45-01-04-080 O-RING (7) or AIPC 30-45-81-04-060 O-RING (7) on the reducer (6).
NOTE: The reducer (6) and the hose (3) are the parts of the 98F30403000000 RAIN REPELLENT SYSTEM tool.
   (4) Install the reducer (6) together with the O-ring (7) on the blowout reservoir (8).
   (5) Connect the hose (3) of the 98F30403000000 RAIN REPELLENT SYSTEM tool to the reducer (6) and the 98F30403001000 RAIN REPELLENT PRES (5).
NOTE: The 98F30403001000 RAIN REPELLENT PRES (5) is used together with the 98F30403000000 RAIN REPELLENT SYSTEM.
   (6) Connect the hose (4) of the 98F30403001000 RAIN REPELLENT PRES (5) to the AIR SOURCE 3 BAR (43.5 PSI) - REGULATED, FILTERED, DRY and the 98F30403001000 RAIN REPELLENT PRES (5).
   (7) Blow the compressed air with a pressure of 0.3 bar (4 psi) to the system through the blowout reservoir (8).
NOTE: We recommend that you blow the compressed air during the test to prevent the fluid in the nozzles after the test.
4. Procedure
Subtask 30-45-00-720-051-A
A. Functional Test of the Rain Repellent System
   (1) Do a check of the CAPT and the F/O nozzles to make sure that:
  • The compressed air goes out through the CAPT and the F/O nozzles:
ACTION
RESULT
1.On the WIPER section of panel 21VU (22VU):
  • Push and release the CAPT (F/O) RAIN RPLNT pushbutton switch.
  • Make sure that the rain repellent fluid flows through the CAPT (F/O) nozzle (between 0.1 and 1 second).
2.Open circuit breaker 1DB1 (1DB2).

3.On the WIPER section of panel 21VU (22VU):
  • Push and release the CAPT (F/O) RAIN RPLNT pushbutton switch.
  • Make sure that the rain repellent fluid does not flow through the nozzles.
4.Close circuit breaker 1DB1 (1DB2).

5.On the WIPER section of panel 21VU (22VU):
  • Push and release the CAPT (F/O) RAIN RPLNT pushbutton switch.
  • Make sure that the rain repellent fluid flows through the CAPT (F/O) nozzle (between 0.1 and 1 second).
  • Make sure that the compressed air removes the remaining fluid from the system.
  • Make sure that the compressed air goes out through the CAPT and the F/O nozzles.
6.Close circuit breakers 2KS1, 2KS2, 4KS1 and 4KS2.

7.On the WIPER section of panel 21VU (22VU):
  • Push and release the CAPT (F/O) RAIN RPLNT pushbutton switch.
  • The rain repellent fluid does not flow through the nozzles.
  • Only the compressed air goes out through the CAPT and the F/O nozzles.
   (2) Clean the windshield with water to remove the remaining rain repellent fluid.
   (3) After you complete the functional test of the rain repellent system, make sure that:
  • The area around the windshield is clear.
  • The windshield is clean and clear of all items.
5. Close-up
Subtask 30-45-00-080-050-A
A. Stop the Pressurization with the Air Compressor
F Rain-Repellent Blowout Reservoir
   (1) Stop the AIR SOURCE 3 BAR (43.5 PSI) - REGULATED, FILTERED, DRY.
   (2) Disconnect the hose (4) from the pressure source and the 98F30403001000 RAIN REPELLENT PRES (5).
   (3) Disconnect the hose (3) from the reducer (6) and the 98F30403001000 RAIN REPELLENT PRES (5).
   (4) Remove the reducer (6) with the O-ring (7) from the blowout reservoir (8).
   (5) Remove and discard the O-ring (7) from the reducer (6).
   (6) Install a new AIPC 30-45-01-04-080 O-RING (2) or AIPC 30-45-81-04-060 O-RING (2) on the blanking plug (1).
   (7) Put the blanking plug (1) in position in the disconnected line end of the blowout reservoir (8).
Subtask 30-45-00-410-050-A
B. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Close access door 811 (Ref. AMM TASK 52-41-00-410-002).
   (3) Remove the access platform(s).
Subtask 30-45-00-865-053-A
WARNING: CLOSE THE CIRCUIT-BREAKER 2KS1 OR 2KS2 BEFORE YOU CLOSE THE PROBE HEATER CIRCUIT-BREAKERS 3DA1(2,3), 4DA1(2,3) AND 5DA1(2,3). IF YOU DO NOT OBEY THIS SEQUENCE:
  • THIS PROBES WILL BECOME TOO HOT.
  • THIS CAN CAUSE DAMAGE TO EQUIPMENT AND INJURY TO MAINTENANCE PERSONNEL.
C. Remove the safety clips and tags and close these circuit breakers in this sequence:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
121VUCOM NAV/RADAR/25SQ2K14
** ON A/C ALL
121VUCOM NAV/RADAR/15SQ1K13
122VUANTI ICE/WINDOWS/R4DG2W14
122VUANTI ICE/WINDOWS/L4DG1X14
122VUANTI ICE/PROBES/PHC/32DA3Y16
122VUANTI ICE/PROBES/PHC/22DA2Y12
49VUANTI ICE/PROBES/PHC/12DA1D03
122VUANTI ICE/PROBES/3/STATIC5DA3Z14
122VUANTI ICE/PROBES/2/STATIC5DA2Y11
122VUANTI ICE/PROBES/1/STATIC5DA1Z13
122VUANTI ICE/PROBES/3/AOA4DA3Z15
122VUANTI ICE/PROBES/2/AOA4DA2Y13
49VUANTI ICE/PROBES/AOA/14DA1D04
122VUANTI ICE/PROBES/3/PITOT3DA3Z16
122VUANTI ICE/PROBES/2/PITOT3DA2Y14
49VUANTI ICE/PROBES/PITOT/13DA1D02
122VUANTI ICE/PROBES/2/TAT1DA2Y15
122VUANTI ICE/PROBES/1/TAT1DA1Z12
** ON A/C NOT FOR ALL
121VUENGINE/IGN/ENG2/SYS A BAT2JH2P40
** ON A/C ALL
121VUENGINE/IGN/ENG2/SYS B3JH2P42
** ON A/C NOT FOR ALL
121VUENGINE/IGN/ENG1/SYS A BAT2JH1P39
** ON A/C ALL
121VUENGINE/IGN/ENG1/SYS B3JH1P41
49VUENGINE/1 AND 2/IGN/SYS A1JHA03
Subtask 30-45-00-862-051-A
D. De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
[Rev.10 from 2021] 2026.04.01 00:31:14 UTC
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