W DOC AIRBUS | TSM A320F

Loss of the Rain Repellent Fluid (F/O)

TASK 30-45-00-810-806-A
Loss of the Rain Repellent Fluid (F/O)

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
1. Possible Causes
  • spray nozzle
  • SOL VALVE-RAIN RPLNT, F/O [3DB2]
  • P/BSW-RAIN RPLNT, F/O (2DB2)
  • wiring from the F/O solenoid valve (3DB2) pin A/B to the ground terminal
  • wiring from the F/O solenoid valve (3DB2) to the relay (10KS1)
  • RELAY-OIL LOW PRESS AND GROUND, ENG 1 [10KS1]
  • RELAY-OIL LOW PRESS AND GROUND, ENG 2 [10KS2]
  • wiring between the F/O solenoid valve (3DB2) pin A/A and the circuit breaker (1DB2)
  • C/B-ANTI ICE/RAIN/RPLNT/F/O [1DB2]
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
1
ACCESS PLATFORM 4M (13 FT)
No specific
1
NEEDLE
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.08BFA1)
Non Aqueous Cleaner-Rain Repellent System remover - -
(Material No.14SBA1)
Textile-Lint free Cotton -
 C. Referenced Information
REFERENCE
DESIGNATION
TSM TASK 24-00-00-810-803-A
Circuit Breaker Tripped and/or C/B TRIPPED Warning
AMM 30-45-00-600-001
Servicing of the Rain Repellent Fluid Can
AMM 30-45-00-720-002
Functional Test of the Rain Repellent System
ASM 304501
AMM 30-45-41-000-001
Removal of the Rain-Repellent Solenoid Valve
AMM 30-45-41-400-001
Installation of the Rain-Repellent Solenoid Valve
AMM 30-45-44-000-001
Removal of the Spray Nozzle
AMM 30-45-44-400-001
Installation of the Spray Nozzle
3. Fault Confirmation
Subtask 30-45-00-720-060-A
A. Test
Do the functional test of the rain repellent system AMM 30-45-00-720-002.
4. Fault Isolation
Subtask 30-45-00-865-055-A
A. Table of the circuit breakers used in this procedure:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
122VUANTI ICE/RAIN/RPLNT/F/O1DB2W11
Subtask 30-45-00-810-055-A
B. If the test confirms the fault:
  • do a check of the status of the circuit breaker (1DB2).
   (1) If the circuit breaker is closed:
     (a) Do a check of the nitrogen pressure of the rain-repellent fluid can:
     (b) If the fault continues:
       1 Do a check of the fluid gage of the rain-repellent fluid can:
  • if the REFILL float is visible, replace the can.
     (c) If the fault continues:
  • press the F/O RAIN RPLNT pushbutton switch and do a check for 28VDC at pin A/A of the F/O solenoid valve (3DB2).
       1 If there is 28VDC:
         a When you do the functional test of the rain repellent system and the compressed air does not come out through the F/O spray nozzle:
  • Make sure that an ACCESS PLATFORM 4M (13 FT) is in position.
  • Use a clean Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-Rain Repellent System remover - - (Material No.08BFA1) and clean the F/O spray nozzle.
  • Make sure that the four holes of the F/O spray nozzle are not clogged.
    * If one or more of the four holes of the F/O spray nozzle is (are) clogged:
    ** Use an applicable NEEDLE to remove the contamination from the holes(s).
  • If the fault continues:
    * Replace the F/O spray nozzle AMM 30-45-44-000-001 and AMM 30-45-44-400-001.
         b When you do the functional test of the rain repellent system and the compressed air comes out through the F/O spray nozzle:
       2 If there is no 28VDC:
  • do a check for 28VDC at pin 1 of the F/O RAIN RPLNT pushbutton switch.
         a If there is 28VDC:
  • Replace the P/BSW-RAIN RPLNT, F/O (2DB2).
         b If there is no 28VDC:
  • do a check for a ground signal at pin A/D and pin A/C of the F/O solenoid valve (3DB2) ASM 304501.
    . If there is a ground signal:
    * repair the wiring from the F/O solenoid valve (3DB2) pin A/B to the ground terminal and the wiring from the F/O solenoid valve (3DB2) to the relay (10KS1), pin A/D to pin 8.
    . If the fault continues:
    * Replace the RELAY-OIL LOW PRESS AND GROUND, ENG 1 [10KS1] and/or the RELAY-OIL LOW PRESS AND GROUND, ENG 2 [10KS2] .
    . If there is a ground signal: * do a check of the wiring between the F/O solenoid valve (3DB2) pin A/A and the circuit breaker (1DB2).
    ** If there is no continuity, repair the above wiring.
    ** If there is continuity, replace the circuit breaker (1DB2).
   (2) If the circuit breaker is open:
     (a) If the fault continues:
  • Replace the C/B-ANTI ICE/RAIN/RPLNT/F/O [1DB2] .
       1 If the fault continues:
  • Replace the SOL VALVE-RAIN RPLNT, F/O [3DB2] .
Subtask 30-45-00-720-061-A
C. Do the test given in Para. 3.
[Rev.8 from Aug 2018] 2026.04.04 04:29:45 UTC
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