DOC AIRBUS | AMM A320FInstallation of the Normal-Brake Supply Pressure-Transducer
TASK 32-42-22-400-001-A
Installation of the Normal-Brake Supply Pressure-Transducer
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 32-42-22-860-051-A ** ON A/C NOT FOR ALL
Subtask 32-42-22-210-050-A ** ON A/C NOT FOR ALL
Subtask 32-42-22-410-050-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 00:47:57 UTC
Installation of the Normal-Brake Supply Pressure-Transducer
WARNING:
MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED BEFORE YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT. UNWANTED ELECTRICAL POWER CAN BE DANGEROUS.
WARNING:
PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:
- THE FLIGHT CONTROLS
- THE FLIGHT CONTROL SURFACES
- THE LANDING GEAR AND THE RELATED DOORS
- COMPONENTS THAT MOVE.
WARNING:
OBEY THE HYDRAULIC SAFETY PROCEDURES.
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
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) |
| No specific | 1 | CONTAINER 3 L(3/4 USGAL) |
| No specific | Torque wrench: range to between 0.5 and 0.4 m.daN (44.25 and 35.40 lbf.in )  |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.02ABA1) | Phosphate Ester Hydraulic Fluid-General Power - - |
| (Material No.04QAB2) | Coating_- Flexible Structure |
| (Material No.06AAA1) | Polysulfide Sealant_General Purpose Brushable - |
| (Material No.06LCG9) | Non Hardening Jointing Putty-Medium Temp. Area - - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 140 | CENTER WING |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 11 | PACKING | AIPC 32-42-22-01-010 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 20-28-00-912-802-A | Electrical Bonding - General Maintenance Procedure |
| TASK 29-00-00-910-002-A | Safety Procedures of the Hydraulic System |
| 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 32-42-00-710-001-A | Operational Check of the Normal Braking System |
| TASK 32-42-00-870-001-A | Bleeding of the Normal Braking at the Brake Units |
Normal-Brake Supply Pressure-TransducerSubtask 32-42-22-860-051-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(2) Make sure that the Green hydraulic system is depressurized and put it in the maintenance configuration.
(3) Make sure that the reservoir of the Green hydraulic system is depressurized
(4) Make sure that a WARNING NOTICE(S) is in position to tell persons not to pressurize the Green hydraulic system:
(6) Make sure that the ACCESS PLATFORM 2M (6 FT) is in position.
(7) Make sure that the CONTAINER 3 L(3/4 USGAL) is in position below the location of the pressure transducer (10).
Subtask 32-42-22-865-051-A ** ON A/C NOT FOR ALL 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 Green hydraulic system is depressurized and put it in the maintenance configuration.
(3) Make sure that the reservoir of the Green hydraulic system is depressurized
(4) Make sure that a WARNING NOTICE(S) is in position to tell persons not to pressurize the Green hydraulic system:
- in the cockpit on the hydraulic section 40VU of the overhead panel
- on the ground service panel of the Green hydraulic system.
(6) Make sure that the ACCESS PLATFORM 2M (6 FT) is in position.
(7) Make sure that the CONTAINER 3 L(3/4 USGAL) is in position below the location of the pressure transducer (10).
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 | ABCU &/Y BRK/PRESS IND | 61GG | C10 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | HYDRAULIC/G HYD/PUMP ENG1/CTL | 1701GK | H12 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | HYDRAULIC/G HYD/PUMP ENG1/CTL | 1701GK | R35 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | ABCU/HOT BUS/SPLY | 110GG | P30 |
| 121VU | HYDRAULIC/G HYD/PUMP ENG1/MONG | 1702GK | R34 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | HYDRAULIC/BRAKING AND STEERING/SYS2/SPLY | 4GG | M36 |
| 121VU | HYDRAULIC/BRAKING AND STEERING/SYS2/CTL | 3GG | M35 |
| 121VU | HYDRAULIC/BRAKING AND STEERING/SYS1/CTL | 1GG | M34 |
| 121VU | HYDRAULIC/BRAKING AND STEERING/SYS1/IND AND/SPLY | 2GG | M33 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | ABCU/HOT BUS/SPLY | 110GG | P31 |
| 121VU | HYDRAULIC/G HYD/PUMP ENG1/MONG | 1702GK | R33 |
Subtask 32-42-22-210-050-A ** ON A/C NOT FOR ALL
A. Preparation for Installation
(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Make sure that the parts retained from the removed component are clean and in the correct condition.
(4) Lubricate the new AIPC 32-42-22-01-010 PACKING (11) with Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) .
(5) Apply Non Hardening Jointing Putty-Medium Temp. Area - - (Material No.06LCG9) to the threads of the bolts (3).
Subtask 32-42-22-420-050-A ** ON A/C NOT FOR ALL (1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Make sure that the parts retained from the removed component are clean and in the correct condition.
(4) Lubricate the new AIPC 32-42-22-01-010 PACKING (11) with Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) .
(5) Apply Non Hardening Jointing Putty-Medium Temp. Area - - (Material No.06LCG9) to the threads of the bolts (3).
B. Installation of the Pressure Transducer (96GG)
(1) Remove the blanking caps from the ports of the manifold (1) and the pressure transducer (10).
(2) Install the new packing (11) on the pressure transducer (10).
(3) Hold the pressure transducer (10) in position on the manifold (1) and install the bolts (3) and the washers (2).
(4) TORQUE the bolts (3) to between 0.5 and 0.4 m.daN (44.25 and 35.40 lbf.in ).
(5) Install the clamp (7) on the pressure transducer (10).
(6) Install the bonding strap (6) with the washer (5), the bolt (4) and the nut (8) at the clamp (7) (Ref. AMM TASK 20-28-00-912-802).
(7) Remove the blanking cap from the electrical connector (9).
(8) Make sure that all the electrical connections are clean and in the correct condition.
(9) Connect the electrical connector (9) to the pressure transmitter (10).
(10) Seal the connections of the bonding strap (6) with Polysulfide Sealant_General Purpose Brushable - (Material No.06AAA1) .
(11) Apply Coating_- Flexible Structure (Material No.04QAB2) to the sealant.
Subtask 32-42-22-865-052-A ** ON A/C NOT FOR ALL (1) Remove the blanking caps from the ports of the manifold (1) and the pressure transducer (10).
(2) Install the new packing (11) on the pressure transducer (10).
(3) Hold the pressure transducer (10) in position on the manifold (1) and install the bolts (3) and the washers (2).
(4) TORQUE the bolts (3) to between 0.5 and 0.4 m.daN (44.25 and 35.40 lbf.in )
. (5) Install the clamp (7) on the pressure transducer (10).
(6) Install the bonding strap (6) with the washer (5), the bolt (4) and the nut (8) at the clamp (7) (Ref. AMM TASK 20-28-00-912-802).
(7) Remove the blanking cap from the electrical connector (9).
(8) Make sure that all the electrical connections are clean and in the correct condition.
(9) Connect the electrical connector (9) to the pressure transmitter (10).
(10) Seal the connections of the bonding strap (6) with Polysulfide Sealant_General Purpose Brushable - (Material No.06AAA1) .
(11) Apply Coating_- Flexible Structure (Material No.04QAB2) to the sealant.
C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 32-42-22-710-050-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | ABCU &/Y BRK/PRESS IND | 61GG | C10 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | HYDRAULIC/G HYD/PUMP ENG1/CTL | 1701GK | H12 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | HYDRAULIC/G HYD/PUMP ENG1/CTL | 1701GK | R35 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | ABCU/HOT BUS/SPLY | 110GG | P30 |
| 121VU | HYDRAULIC/G HYD/PUMP ENG1/MONG | 1702GK | R34 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | HYDRAULIC/BRAKING AND STEERING/SYS2/SPLY | 4GG | M36 |
| 121VU | HYDRAULIC/BRAKING AND STEERING/SYS2/CTL | 3GG | M35 |
| 121VU | HYDRAULIC/BRAKING AND STEERING/SYS1/CTL | 1GG | M34 |
| 121VU | HYDRAULIC/BRAKING AND STEERING/SYS1/IND AND/SPLY | 2GG | M33 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | ABCU/HOT BUS/SPLY | 110GG | P31 |
| 121VU | HYDRAULIC/G HYD/PUMP ENG1/MONG | 1702GK | R33 |
D. Test
(1) Bleed the normal brake system (Ref. AMM TASK 32-42-00-870-001).
(2) Do an operational check of the normal brake system (Ref. AMM TASK 32-42-00-710-001).
(3) Examine the pressure transducer and the component interface for leaks. Leaks are not permitted.
5. Close-up(1) Bleed the normal brake system (Ref. AMM TASK 32-42-00-870-001).
(2) Do an operational check of the normal brake system (Ref. AMM TASK 32-42-00-710-001).
(3) Examine the pressure transducer and the component interface for leaks. Leaks are not permitted.
Subtask 32-42-22-410-050-A ** ON A/C NOT FOR ALL
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the access platform(s).
(3) Close the applicable MLG door (Ref. AMM TASK 32-12-00-410-001).
(4) Remove the WARNING NOTICE(S).
(5) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the access platform(s).
(3) Close the applicable MLG door (Ref. AMM TASK 32-12-00-410-001).
(4) Remove the WARNING NOTICE(S).
(5) Remove the ground support and maintenance equipment, the special and standard tools and all other items.