DOC AIRBUS | AMM A320FServicing the Engine-Pump Case-Drain Filter
TASK 29-11-43-610-041-A
Servicing 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 29-11-43-860-052-A ** ON A/C NOT FOR ALL
Subtask 29-11-43-020-053-A ** ON A/C NOT FOR ALL
Subtask 29-11-43-410-055-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 00:15:59 UTC
Servicing 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.
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 1M (3 FT)-ADJUSTABLE |
| No specific | 1 | CONTAINER 5 L (1.32 USGAL) |
| No specific | 1 | WARNING NOTICE(S) |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.02ABA1) | Phosphate Ester Hydraulic Fluid-General Power - - |
| No specific | corrosion resistant steel lockwire dia 0.8 mm (0.032 in.) |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 197CB | |
| FOR [1000EM1] (ENGINE-1) | |
| 437AL | |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 2 | CARTRIDG | AIPC 29-11-43-02-030 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 12-12-29-611-001-A | Fill the Hydraulic Fluid Reservoir with a Hand Pump |
| TASK 12-12-29-611-002-A | Fill the Hydraulic Fluid Reservoir with a Hydraulic Service Cart |
| 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 |
| FOR [1000EM1] (ENGINE-1) | |
| TASK 71-13-00-010-040-B | Opening of the Fan Cowl Doors |
| TASK 71-13-00-410-040-B | Closing of the Fan Cowl Doors |
Engine-Pump Case-Drain FilterSubtask 29-11-43-860-052-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) and (Ref. AMM TASK 29-10-00-864-002).
(2) Depressurize the related hydraulic reservoir (Ref. AMM TASK 29-14-00-614-001).
Subtask 29-11-43-010-055-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) and (Ref. AMM TASK 29-10-00-864-002).
(2) Depressurize the related hydraulic reservoir (Ref. AMM TASK 29-14-00-614-001).
B. Get Access
(1) Put an ACCESS PLATFORM 1M (3 FT)-ADJUSTABLE in position at the engine.
(2) Open the left fan cowl door:
(a) FOR [1000EM1] (ENGINE-1)
open the door 437AL (Ref. AMM TASK 71-13-00-010-040).
Subtask 29-11-43-941-057-A ** ON A/C NOT FOR ALL (1) Put an ACCESS PLATFORM 1M (3 FT)-ADJUSTABLE in position at the engine.
(2) Open the left fan cowl door:
(a) FOR [1000EM1] (ENGINE-1)
open the door 437AL (Ref. AMM TASK 71-13-00-010-040).
C. Safety Precautions
(1) Put WARNING NOTICE(S) in position to tell persons not to pressurize the hydraulic system:
(4) On maintenance panel 50VU:
4. Procedure(1) Put WARNING NOTICE(S) in position to tell persons not to pressurize the hydraulic system:
- In the cockpit, on the HYD section of panel 40VU
- On the ground service panel of the Green hydraulic system, access door 197CB
- On access door 195BB of the Green hydraulic reservoir.
- Put WARNING NOTICE(S) in position to tell persons not to start the engines 1(2).
(4) On maintenance panel 50VU:
- Make sure that the ON legend of the related ENG FADEC PWR pushbutton switch is off,
- Put a WARNING NOTICE(S) in position to tell persons not to supply power to the FADEC system.
- Make sure that the related ENG MASTER switch is in the OFF position.
Subtask 29-11-43-020-053-A ** ON A/C NOT FOR ALL
A. Removal of the Filter Element.
(1) Cut and remove the lockwire from the filter bowl (3).
(2) Remove the filter bowl (3) from the filter head.
(3) Remove and discard the filter element (2) from the filter bowl (3)
(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 29-11-43-560-050-A ** ON A/C NOT FOR ALL (1) Cut and remove the lockwire from the filter bowl (3).
(2) Remove the filter bowl (3) from the filter head.
(3) Remove and discard the filter element (2) from the filter bowl (3)
(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. Preparation for Installation
(1) Do a check of the correct condition and installation of the O-ring (1).
Subtask 29-11-43-420-054-A ** ON A/C NOT FOR ALL (1) Do a check of the correct condition and installation of the O-ring (1).
NOTE: The O-ring (1) is a part of the filter element (2).
(2) Lubricate the O-ring (1) of the new filter element (2) with Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) . C. Installation of the Filter Element
(1) Apply Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) on the threads of the filter bowl (3).
(2) Put a new AIPC 29-11-43-02-030 CARTRIDG (2) into the filter bowl (3).
Subtask 29-11-43-210-050-A ** ON A/C NOT FOR ALL (1) Apply Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) on the threads of the filter bowl (3).
(2) Put a new AIPC 29-11-43-02-030 CARTRIDG (2) into the filter bowl (3).
NOTE: If you install the alternative PN CH0184101362C01, it is necessary to install an o-ring before you install the filter element.
(3) Install the filter bowl (3) into the filter head and tighten it with your hand. 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.
(4) Lock the filter bowl (3) to the filter head with corrosion resistant steel lockwire dia 0.8 mm (0.032 in.). D. Examine the Filter Clogging Indicator
(2) Push the red clogging indicator in.
(3) Install the transparent cap.
(4) Lock the cap with corrosion resistant steel lockwire dia 0.8 mm (0.032 in.).
Subtask 29-11-43-941-058-A ** ON A/C NOT FOR ALL NOTE: If the red clogging indicator is 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 clogging indicator in.
(3) Install the transparent cap.
(4) Lock the cap with corrosion resistant steel lockwire dia 0.8 mm (0.032 in.).
E. Preparation for the Test
(1) Remove the container 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).
Subtask 29-11-43-710-054-A ** ON A/C NOT FOR ALL (1) Remove the container 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).
F. 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 hydraulic fluid in the Green reservoir is correct.
If necessary, fill the reservoir (Ref. AMM TASK 12-12-29-611-001) or (Ref. AMM TASK 12-12-29-611-002).
(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:
5. Close-up(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 hydraulic fluid in the Green reservoir is correct.
If necessary, fill the reservoir (Ref. AMM TASK 12-12-29-611-001) or (Ref. AMM TASK 12-12-29-611-002).
(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.
Subtask 29-11-43-410-055-A ** ON A/C NOT FOR ALL
A. Close Access
(1) Close the left fan cowl door:
(a) FOR [1000EM1] (ENGINE-1)
close the door 437AL (Ref. AMM TASK 71-13-00-410-040).
(2) Remove the access platform(s).
(1) Close the left fan cowl door:
(a) FOR [1000EM1] (ENGINE-1)
close the door 437AL (Ref. AMM TASK 71-13-00-410-040).
(2) Remove the access platform(s).