DOC AIRBUS | AMM A320FServicing of the Engine-Pump Case-Drain Filter
TASK 29-11-43-610-040-A
Servicing of the Engine-Pump Case-Drain Filter
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Expendable Parts
E. Referenced Information
3. Job Set-up
Subtask 29-11-43-860-054-A ** ON A/C NOT FOR ALL
Subtask 29-11-43-020-055-A ** ON A/C NOT FOR ALL
Subtask 29-11-43-410-053-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 00:15:58 UTC
Servicing of the Engine-Pump Case-Drain Filter
WARNING:
OBEY THE HYDRAULIC SAFETY PROCEDURES.
WARNING:
DO NOT TOUCH THE HYDRAULIC SYSTEM COMPONENTS FOR A SHORT TIME AFTER THE ENGINE IS SHUTDOWN. THE ENGINE COMPONENTS STAY HOT FOR SOME TIME AND CAN CAUSE INJURY.
CAUTION:
DO NOT LET HYDRAULIC FLUID FALL ON THE ENGINE. UNWANTED HYDRAULIC FLUID MUST BE REMOVED IMMEDIATELY WITH A CLEAN LINT FREE CLOTH. THE FLUID CAN CAUSE DAMAGE TO THE SURFACE PROTECTION AND TO SOME PARTS.
FIN: 1084GM ** ON A/C NOT FOR ALL
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE |
| No specific | AR | CONTAINER 5 L (1.32 USGAL) |
| No specific | AR | WARNING NOTICE(S) |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.02ABA1) | Phosphate Ester Hydraulic Fluid-General Power - - |
| No specific | corrosion resistant steel lockwire dia 0.8 mm (0.032in.) |
| No specific | lockwire 0.8mm |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 197CB, 437AL |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 5 | FILTER ELEMEMT | AIPC 29-11-43-02-020 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 12-12-29-611-001-A | Fill the Hydraulic Fluid Reservoir with a Hand Pump |
| TASK 29-00-00-280-006-A | Check of the Green or Yellow Hydraulic System after Engine Pump Failure or Operation in a Possible Cavitation Condition - with Ground Cart Available |
| TASK 29-00-00-280-006-A-01 | Check of the Green or Yellow Hydraulic System after Engine Pump Failure or Operation in a Possible Cavitation Condition - Ground Cart not Available |
| TASK 29-10-00-863-001-A | Pressurize the Green Hydraulic System with a Hydraulic Ground Power-Cart |
| TASK 29-10-00-863-002-A | Pressurize the Yellow Hydraulic System with a Hydraulic Ground Power-Cart |
| TASK 29-10-00-864-001-A | Depressurize the Green Hydraulic System |
| TASK 29-10-00-864-002-A | Depressurize the Yellow Hydraulic System |
| TASK 29-11-00-710-001-A | Operational Test of the Green Hydraulic System |
| TASK 29-14-00-614-001-A | Depressurization of the Hydraulic Reservoirs |
| TASK 71-13-00-010-040-A | Opening of the Fan Cowl Doors |
| TASK 71-13-00-410-040-A | Closing of the Fan Cowl Doors |
Engine Pump Case Drain FilterSubtask 29-11-43-860-054-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) Make sure that the hydraulic systems are depressurized
and put them in the maintenance configuration (Ref. AMM TASK 29-10-00-864-001) or (Ref. AMM TASK 29-10-00-864-002).
(2) Depressurize the related hydraulic reservoir (Ref. AMM TASK 29-14-00-614-001).
Subtask 29-11-43-941-053-A ** ON A/C NOT FOR ALL (1) Make sure that the hydraulic systems are depressurized
and put them in the maintenance configuration (Ref. AMM TASK 29-10-00-864-001) or (Ref. AMM TASK 29-10-00-864-002).
(2) Depressurize the related hydraulic reservoir (Ref. AMM TASK 29-14-00-614-001).
B. Safety Precautions
(1) Put WARNING NOTICE(S) in position to tell persons not to pressurize the hydraulic system:
(3) Make sure that the related engine 1(2) is stopped for at least 5 minutes.
(4) On the panel 50VU:
Subtask 29-11-43-010-053-A ** ON A/C NOT FOR ALL (1) Put WARNING NOTICE(S) in position to tell persons not to pressurize the hydraulic system:
- on the panel 40VU, in the cockpit,
- on the ground service panel of the Green hydraulic system, access door 197CB,
- on the access door 195BB of the Green hydraulic reservoir.
(3) Make sure that the related engine 1(2) is stopped for at least 5 minutes.
(4) On the panel 50VU:
- make sure that the ON legend of the related ENG FADEC PWR pushbutton switch is off,
- put WARNING NOTICE(S) to tells persons not to supply power to the FADEC system.
- make sure that the related ENG MASTER switch is in the OFF position.
C. Get Access
(1) Open the left fan-cowl door 437AL (Ref. AMM TASK 71-13-00-010-040).
(2) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position at the engine.
4. Procedure(1) Open the left fan-cowl door 437AL (Ref. AMM TASK 71-13-00-010-040).
(2) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position at the engine.
Subtask 29-11-43-020-055-A ** ON A/C NOT FOR ALL
A. Removal of the Filter Element
(1) Cut and remove the lockwire between the case (10) and the filter head.
(2) Remove the case (10) together with the filter element (5) from the filter head.
(3) Remove and discard the filter elememt (5) from the case (10).
(4) Examine the filter element in order to find the causes of contamination.
If you find metal particles in the filter element you must check the associated hydraulic system after operation in the engine pump in possible cavitation condition. (Ref. AMM TASK 29-00-00-280-006)
Subtask 29-11-43-420-056-A ** ON A/C NOT FOR ALL (1) Cut and remove the lockwire between the case (10) and the filter head.
(2) Remove the case (10) together with the filter element (5) from the filter head.
(3) Remove and discard the filter elememt (5) from the case (10).
(4) Examine the filter element in order to find the causes of contamination.
If you find metal particles in the filter element you must check the associated hydraulic system after operation in the engine pump in possible cavitation condition. (Ref. AMM TASK 29-00-00-280-006)
B. Installation of the Filter Element
(2) Put the AIPC 29-11-43-02-020 FILTER ELEMEMT (5) in position.
(3) Install the case (10) in the filter head and turn clockwise by hand.
Subtask 29-11-43-210-051-A ** ON A/C NOT FOR ALL CAUTION:
DO NOT USE A WRENCH TO TIGHTEN THE FILTER CASE. TIGHTEN IT WITH YOUR HAND ONLY.
IF YOU USE A WRENCH YOU CAN CAUSE DAMAGE.
(1) Apply Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) on the threads of the case (10). (2) Put the AIPC 29-11-43-02-020 FILTER ELEMEMT (5) in position.
(3) Install the case (10) in the filter head and turn clockwise by hand.
C. Examine the filter clogging indicator. If the red clog indicator has come out set it to the operational position, as follows:
(1) Cut and remove the safety wire, then remove the transparent cap.
(2) Push the red clog indicator in.
(3) Install the transparent cap.
(4) Lock the cap with safety wire corrosion resistant steel lockwire dia 0.8 mm (0.032in.).
Subtask 29-11-43-710-055-A ** ON A/C NOT FOR ALL (1) Cut and remove the safety wire, then remove the transparent cap.
(2) Push the red clog indicator in.
(3) Install the transparent cap.
(4) Lock the cap with safety wire corrosion resistant steel lockwire dia 0.8 mm (0.032in.).
D. Operational Test
(1) Pressurize the aircraft hydraulic systems
(Ref. AMM TASK 29-10-00-863-001) or (Ref. AMM TASK 29-10-00-863-002).
(2) Make sure that the level of the hydraulic fluid in the Green reservoir is correct. If necessary, fill the reservoir (Ref. AMM TASK 12-12-29-611-001).
(3) Do an operational test of the Green hydraulic system (Ref. AMM TASK 29-11-00-710-001).
(4) During the dry motoring of the engine 1, make sure that:
Subtask 29-11-43-941-060-A ** ON A/C NOT FOR ALL (1) Pressurize the aircraft hydraulic systems
(Ref. AMM TASK 29-10-00-863-001) or (Ref. AMM TASK 29-10-00-863-002).
(2) Make sure that the level of the hydraulic fluid in the Green reservoir is correct. If necessary, fill the reservoir (Ref. AMM TASK 12-12-29-611-001).
(3) Do an operational test of the Green hydraulic system (Ref. AMM TASK 29-11-00-710-001).
(4) During the dry motoring of the engine 1, make sure that:
- there are no leaks from the case drain filter,
- the clogging indicator of the filter is not out.
E. Preparation for the test
(1) Remove the CONTAINER 5 L (1.32 USGAL) and discard the drained hydraulic fluid.
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Remove the WARNING NOTICE(S).
(4) Safety the case (5) with lockwire 0.8mm
5. Close-up(1) Remove the CONTAINER 5 L (1.32 USGAL) and discard the drained hydraulic fluid.
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Remove the WARNING NOTICE(S).
(4) Safety the case (5) with lockwire 0.8mm
Subtask 29-11-43-410-053-A ** ON A/C NOT FOR ALL
A. Close Access
(1) Close the fan-cowl doors 437AL (Ref. AMM TASK 71-13-00-410-040).
(2) Remove the access platform(s).
(1) Close the fan-cowl doors 437AL (Ref. AMM TASK 71-13-00-410-040).
(2) Remove the access platform(s).