W DOC AIRBUS | AMM A320F

Removal of the Low Pressure Filter Assembly

TASK 29-13-44-000-001-A
Removal of the Low Pressure Filter Assembly

WARNING: MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR. THIS WILL PREVENT UNWANTED MOVEMENT OF THE LANDING GEAR, AND THUS POSSIBLE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.
WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.
FIN: 3002GM
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
CAP - BLANKING
No specific
1
CONTAINER 20L (5 USGAL)
No specific
1
PLUG - BLANKING
No specific
AR
SAFETY CLIP - CIRCUIT BREAKER
No specific
2
WARNING NOTICE(S)
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
196BB
 C. Referenced Information
REFERENCE
DESIGNATION
TASK 29-00-00-864-001-A
Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action
TASK 29-00-00-910-002-A
Safety Procedures of the Hydraulic System
TASK 29-14-00-614-001-A
Depressurization of the Hydraulic Reservoirs
TASK 29-23-00-860-001-A
Disconnection of the Isolation Coupling of the Power Transfer Unit (PTU)
F Low Pressure Filter-Assembly
3. Job Set-up
Subtask 29-13-44-865-054-A
A. Open, safety and tag this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
49VUHYD/HYD/PRESS/XMTR1841GNC11
** ON A/C NOT FOR ALL
121VUHYDRAULIC/HYD POWER/Y3803GXN30
** ON A/C ALL
121VUHYDRAULIC/SOL VALVES/G/Y/B/LEAK/TST1881GPN35
** ON A/C NOT FOR ALL
121VUHYDRAULIC/HYD POWER/Y3803GXN31
** ON A/C ALL
123VUY HYD/ELEC/PUMP3802GXAB06
123VUY HYD/ELEC/ELEC PUMP/NORM3801GXAB03
Subtask 29-13-44-860-055-A
B. Aircraft Maintenance Configuration
WARNING: OBEY THE HYDRAULIC SAFETY PROCEDURES.
   (1) Obey the hydraulic safety procedures (Ref. AMM TASK 29-00-00-910-002).
   (2) Put the warning notices in position to tell persons not to pressurize the Yellow hydraulic system:
  • Put a WARNING NOTICE(S) in the cockpit on the hydraulic section 40VU of the overhead panel.
  • Put a WARNING NOTICE(S) on the ground service panel of the Yellow hydraulic system.
   (3) Make sure that the Yellow hydraulic system is depressurized and put it in the maintenance configuration.
(Ref. AMM TASK 29-00-00-864-001).
   (4) Depressurize the reservoir of the Yellow hydraulic system (Ref. AMM TASK 29-14-00-614-001).
   (5) Disconnect the isolation coupling of the the Power Transfer Unit (PTU) (Ref. AMM TASK 29-23-00-860-001).
   (6) Open the access panel 196BB.
   (7) Put a CONTAINER 20L (5 USGAL) below the low pressure filter-assembly to collect all the hydraulic fluid.
4. Procedure
Subtask 29-13-44-020-052-A
A. Removal of the Low Pressure Filter-Assembly (3002GM)
CAUTION: USE A SECOND WRENCH TO APPLY COUNTERTORQUE TO THE UNION WHEN YOU DISCONNECT/CONNECT HYDRAULIC LINES ON UNIONS. IF YOU DO NOT USE THE SECOND WRENCH, THERE IS A RISK THAT YOU WILL LOOSEN OR TIGHTEN THE UNION TOO MUCH.
   (1) Disconnect the electrical connector (7) from the temperature transmitter (8).
   (2) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
   (3) Removal of the bonding strap (11):
CAUTION: MAKE SURE THAT THE ELECTRICAL CONNECTOR(S) IS(ARE) DISCONNECTED BEFORE YOU DISCONNECT THE BONDING STRAP(S).
     (a) Remove the nut (10) and the washer (9) and disconnect the bonding strap (11) from the temperature transmitter (8).
   (4) Loosen the pipe end-fitting (5) and disconnect the pipe (6) from the union (4).
   (5) Loosen the pipe end-fitting (12) and disconnect it from the union (13).
   (6) Hold the low pressure filter-assembly (2) and remove the three nuts (15) and the three bolts (16).
   (7) Remove the low pressure filter-assembly (2) from the bracket (1).
   (8) Put a PLUG - BLANKING on each disconnected pipe end and each open port of the low pressure filter-assembly.
[Rev.10 from 2021] 2026.04.01 00:21:49 UTC
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