DOC AIRBUS | AMM A320FInstallation of the Hydraulic Pressure Transducer
TASK 29-32-11-400-004-A
Installation of the Hydraulic Pressure Transducer
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Expendable Parts
D. Referenced Information
3. Job Set-up
Subtask 29-32-11-860-061-A
Subtask 29-32-11-420-056-B
Subtask 29-32-11-860-055-A
[Rev.10 from 2021]
2026.04.01 12:32:14 UTC
Installation of the Hydraulic Pressure Transducer
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.
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.
FIN: 3068GN
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | CONTAINER 3 L(3/4 USGAL) |
| No specific | 2 | WARNING NOTICE(S) |
| No specific | Torque wrench: range to between 0.50 and 0.40 m.daN (44.25 and 35.40 lbf.in )  |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.02ABA1) | Phosphate Ester Hydraulic Fluid-General Power - - |
| (Material No.14QEB1) | Wire-Locking Dia: 0.6 mm CRES Nickel Alloy - |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 5 | O-RING | AIPC 29-32-11-01-010 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 20-28-00-912-802-A | Electrical Bonding - General Maintenance Procedure |
| 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 29-10-00-863-002-A | Pressurize the Yellow Hydraulic System with a Hydraulic Ground Power-Cart |
| TASK 29-10-00-864-002-A | Depressurize the Yellow Hydraulic System |
| TASK 29-10-00-864-004-A | Depressurize the Brake System |
| TASK 29-14-00-614-001-A | Depressurization of the Hydraulic Reservoirs |
| TASK 29-14-00-614-002-A | Pressurization of the Hydraulic Reservoirs through the Ground Connector |
| TASK 29-14-00-614-002-A-01 | Pressurization of the Hydraulic Reservoirs with the Auxiliary Power Unit (APU) |
| TASK 29-23-00-860-001-A | Disconnection of the Isolation Coupling of the Power Transfer Unit (PTU) |
| TASK 29-23-00-860-002-A | Connection of the Isolation Coupling of the Power Transfer Unit (PTU) |
| TASK 32-12-00-010-001-A | Open the Main Gear Doors for Access |
| TASK 32-12-00-410-001-A | Close the Main Gear Doors after Access |
| TASK 32-43-00-710-001-A | Operational Check of Alternate Braking System |
Hydraulic Pressure TransducerSubtask 29-32-11-860-061-A
A. Aircraft Maintenance Configuration
(2) Make sure that the Yellow hydraulic system is depressurized and put it in the maintenance configuration.
(Ref. AMM TASK 29-00-00-864-001).
(3) Make sure that the reservoir of the Yellow hydraulic system is depressurized.
(Ref. AMM TASK 29-14-00-614-001).
(4) Make sure that the brake system is depressurized (Ref. AMM TASK 29-10-00-864-004).
(5) Make sure that a WARNING NOTICE(S) are in position to tell persons not to pressurize the Yellow hydraulic system:
(7) Make sure that the isolation coupling of the Power Transfer Unit (PTU) is disconnected (Ref. AMM TASK 29-23-00-860-001).
(8) Make sure that the CONTAINER 3 L(3/4 USGAL) is in position below the location of the hydraulic pressure transducer.
Subtask 29-32-11-865-061-A WARNING:
OBEY THE HYDRAULIC SAFETY PROCEDURES.
(1) Obey the hydraulic safety procedures (Ref. AMM TASK 29-00-00-910-002). (2) Make sure that the Yellow hydraulic system is depressurized and put it in the maintenance configuration.
(Ref. AMM TASK 29-00-00-864-001).
(3) Make sure that the reservoir of the Yellow hydraulic system is depressurized.
(Ref. AMM TASK 29-14-00-614-001).
(4) Make sure that the brake system is depressurized (Ref. AMM TASK 29-10-00-864-004).
(5) Make sure that a WARNING NOTICE(S) are in position to tell persons not to pressurize the Yellow hydraulic system:
- in the cockpit on the hydraulic section 40VU of the overhead panel,
- on the ground service panel of the Yellow hydraulic system.
(7) Make sure that the isolation coupling of the Power Transfer Unit (PTU) is disconnected (Ref. AMM TASK 29-23-00-860-001).
(8) Make sure that the CONTAINER 3 L(3/4 USGAL) is in position below the location of the hydraulic pressure transducer.
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | L/G/Y BRK/PRESS/IND | 61GG | C10 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | ABCU &/Y BRK/PRESS IND | 61GG | C10 |
Subtask 29-32-11-420-056-B
A. Installation of the Hydraulic Pressure Transducer
(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Lubricate the new AIPC 29-32-11-01-010 O-RING (5) with Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) .
(4) Remove the blanking plugs from the ports of the manifold (6).
(5) Put the new O-ring (5) in position on the hydraulic pressure transducer (2).
(6) Hold the hydraulic pressure transducer (2) in position on the manifold (6) and install the two bolts (3) and the two washers (4).
(7) TORQUE the bolts (3) to between 0.50 and 0.40 m.daN (44.25 and 35.40 lbf.in ).
14QEB1 Wire-Locking Dia: 0.6 mm CRES Nickel Alloy -
(9) Install the clamp (11), the bonding jumper (9), the screw (10), the washer (8) and the nut (7) at the hydraulic pressure transducer (2) (Ref. AMM TASK 20-28-00-912-802).
(10) Remove the blanking cap from the electrical connector (1).
(11) Make sure that all the electrical connections are clean and in the correct condition.
(12) Connect the electrical connector (1).
Subtask 29-32-11-865-057-A (1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Lubricate the new AIPC 29-32-11-01-010 O-RING (5) with Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) .
(4) Remove the blanking plugs from the ports of the manifold (6).
(5) Put the new O-ring (5) in position on the hydraulic pressure transducer (2).
(6) Hold the hydraulic pressure transducer (2) in position on the manifold (6) and install the two bolts (3) and the two washers (4).
(7) TORQUE the bolts (3) to between 0.50 and 0.40 m.daN (44.25 and 35.40 lbf.in )
. WARNING:
USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.
(8) Safety the bolts (3) with the (9) Install the clamp (11), the bonding jumper (9), the screw (10), the washer (8) and the nut (7) at the hydraulic pressure transducer (2) (Ref. AMM TASK 20-28-00-912-802).
(10) Remove the blanking cap from the electrical connector (1).
(11) Make sure that all the electrical connections are clean and in the correct condition.
(12) Connect the electrical connector (1).
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 29-32-11-790-053-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | L/G/Y BRK/PRESS/IND | 61GG | C10 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | ABCU &/Y BRK/PRESS IND | 61GG | C10 |
C. Leak Test of the Hydraulic Connections
(1) Pressurize the reservoir of the Yellow hydraulic system (Ref. AMM TASK 29-14-00-614-002).
(2) Pressurize the Yellow hydraulic system (Ref. AMM TASK 29-10-00-863-002).
(3) Examine the connection of the hydraulic pressure transducer and make sure that there are no leaks.
(4) Depressurize the Yellow hydraulic system (Ref. AMM TASK 29-10-00-864-002).
Subtask 29-32-11-710-053-A (1) Pressurize the reservoir of the Yellow hydraulic system (Ref. AMM TASK 29-14-00-614-002).
(2) Pressurize the Yellow hydraulic system (Ref. AMM TASK 29-10-00-863-002).
(3) Examine the connection of the hydraulic pressure transducer and make sure that there are no leaks.
(4) Depressurize the Yellow hydraulic system (Ref. AMM TASK 29-10-00-864-002).
D. Do the operational test of the alternate braking system without anti skid (Ref. AMM TASK 32-43-00-710-001).
5. Close-upSubtask 29-32-11-860-055-A
A. Put the aircraft back to the serviceable condition.
(1) Remove the container.
(2) Connect the isolation coupling of the Power Transfer Unit (PTU) (Ref. AMM TASK 29-23-00-860-002).
(3) Remove the WARNING NOTICE(S).
Subtask 29-32-11-410-053-A (1) Remove the container.
(2) Connect the isolation coupling of the Power Transfer Unit (PTU) (Ref. AMM TASK 29-23-00-860-002).
(3) Remove the WARNING NOTICE(S).
B. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the main door of the main gear (Ref. AMM TASK 32-12-00-410-001).
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the main door of the main gear (Ref. AMM TASK 32-12-00-410-001).