DOC AIRBUS | AMM A320FClean and/or Replace the stage 10 Solenoid Valve Servo Vent and Exhaust Vent Retimet Filters [IAE]
TASK 75-32-53-100-011-A
Clean and/or Replace the stage 10 Solenoid Valve Servo Vent and Exhaust Vent Retimet Filters
1. Reason for the Job
This TASK is for the stage 10, handling bleed solenoid valve.
It is possible for debris to accumulate on the internal face of the Servo Vent and Exhaust Vent Retimet filters. This can cause valve malfunction. Removing the debris returns the valve to a functional condition.
This procedure allows the filter to be cleaned or replaced. If the filter is to be replaced, refer to the Component Maintenance Manual for part numbers and vendor details.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 75-32-53-941-055-A ** ON A/C NOT FOR ALL
Subtask 75-32-53-020-055-A ** ON A/C NOT FOR ALL
Subtask 75-32-53-410-057-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 03:12:42 UTC
Clean and/or Replace the stage 10 Solenoid Valve Servo Vent and Exhaust Vent Retimet Filters
1. Reason for the Job
This TASK is for the stage 10, handling bleed solenoid valve.
It is possible for debris to accumulate on the internal face of the Servo Vent and Exhaust Vent Retimet filters. This can cause valve malfunction. Removing the debris returns the valve to a functional condition.
This procedure allows the filter to be cleaned or replaced. If the filter is to be replaced, refer to the Component Maintenance Manual for part numbers and vendor details.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | BRUSH - BRISTLED |
| No specific | AR | VACUUM CLEANER |
| No specific | AR | WARNING NOTICE(S) |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.V01-338) | Cleaning solvent |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [1000EM1] (ENGINE-1) | |
| 437AL, 438AR | |
| FOR [1000EM2] (ENGINE-2) | |
| 447AL, 448AR | |
| REFERENCE | DESIGNATION |
|---|---|
| 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) |
Stage 10 Solenoid ValveSubtask 75-32-53-941-055-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).
Subtask 75-32-53-010-059-A ** ON A/C NOT FOR ALL (1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).
B. Make sure that the fan cowl doors are open: (Ref. AMM TASK 71-13-00-010-010)
(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR
4. Procedure(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR
Subtask 75-32-53-020-055-A ** ON A/C NOT FOR ALL
A. Remove the solenoid servo vent and exhaust vent retimet filters.
(2) Remove the retimet filter (1) from the servo vent port of the stage 10 solenoid valves.
(3) Remove the circlip (3) from the exhaust vent port of the stage 10 solenoid valves.
(4) Remove the retimet filter (4) from the exhaust vent port of the stage 10 valves.
(5) Ensure than any accumulated debris within the solenoid servo and exhaust vent ports is removed. Use a soft BRUSH - BRISTLED or VACUUM CLEANER for this procedure.
Subtask 75-32-53-210-050-A ** ON A/C NOT FOR ALL CAUTION:
THE COMPONENT PARTS REMOVED IN THIS PROCEDURE ARE VERY SMALL. EXTREME CARE MUST BE TAKEN WHEN REMOVING/INSTALLING THESE ITEMS, TO PREVENT FOD HAZARD.
(1) Remove the circlip (2) from the servo vent port of the stage 10 solenoid valves. (2) Remove the retimet filter (1) from the servo vent port of the stage 10 solenoid valves.
(3) Remove the circlip (3) from the exhaust vent port of the stage 10 solenoid valves.
(4) Remove the retimet filter (4) from the exhaust vent port of the stage 10 valves.
(5) Ensure than any accumulated debris within the solenoid servo and exhaust vent ports is removed. Use a soft BRUSH - BRISTLED or VACUUM CLEANER for this procedure.
B. Inspect and clean the servo vent and exhaust vent retimet filters.
(1) Inspect the internal face of the filter and remove deposits of contamination.
(2) Place the removed filters in a small amount of Cleaning solvent (Material No.V01-338) for fives minutes.
(3) Remove the filters from the solvent and throughly dry with clean air blast.
(4) Inspect the filters. If the filters cannot be cleaned satisfactorily replace the filters.CMM 753251
Subtask 75-32-53-420-052-A ** ON A/C NOT FOR ALL (1) Inspect the internal face of the filter and remove deposits of contamination.
(2) Place the removed filters in a small amount of Cleaning solvent (Material No.V01-338) for fives minutes.
(3) Remove the filters from the solvent and throughly dry with clean air blast.
(4) Inspect the filters. If the filters cannot be cleaned satisfactorily replace the filters.
C. Install the servo vent and exhaust vent retimet filters.
(1) Install the retimet filter (1) to the servo vent port of the stage 10 solenoid valves.
(2) Install the retimet filter (4) to the exhaust vent ports of the stage 10 solenoid valves.
(3) Install the circlip (2) to the servo vent port of the stage 10 solenoid valves.
(4) Install the circlip (3) to the exhaust vent port of the stage 10 solenoid valves.
5. Close-up(1) Install the retimet filter (1) to the servo vent port of the stage 10 solenoid valves.
(2) Install the retimet filter (4) to the exhaust vent ports of the stage 10 solenoid valves.
(3) Install the circlip (2) to the servo vent port of the stage 10 solenoid valves.
(4) Install the circlip (3) to the exhaust vent port of the stage 10 solenoid valves.
Subtask 75-32-53-410-057-A ** ON A/C NOT FOR ALL