DOC AIRBUS | AMM A320FRemoval of the Park Brake - Pressure Switch
TASK 32-45-17-000-001-A
Removal of the Park Brake - Pressure Switch
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Referenced Information
3. Job Set-up
Subtask 32-45-17-861-050-A ** ON A/C NOT FOR ALL
Subtask 32-45-17-020-050-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 00:49:58 UTC
Removal of the Park Brake - Pressure Switch
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.
WORK ON THE HYDRAULIC SYSTEMS CAN BE DANGEROUS.
FIN: 86GG ** 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) |
| No specific | AR | CAP - BLANKING |
| No specific | 1 | CONTAINER 2 L (0.53 USGAL) |
| No specific | AR | PLUG - BLANKING |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| No specific | AR | WARNING NOTICE(S) |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 24-42-00-861-001-A | Energize the Ground Service Network from the External Power |
| TASK 29-00-00-910-002-A | Safety Procedures of the Hydraulic System |
| TASK 29-10-00-864-002-A | Depressurize the Yellow 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) |
| TASK 32-12-00-010-001-A | Open the Main Gear Doors for Access |
Park Brake-Pressure SwitchSubtask 32-45-17-861-050-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) Energize the ground service network (Ref. AMM TASK 24-42-00-861-001).
Subtask 32-45-17-860-050-A ** ON A/C NOT FOR ALL (1) Energize the ground service network (Ref. AMM TASK 24-42-00-861-001).
B. Aircraft Maintenance Configuration
(1) Make sure that the PTU isolation coupling is disconnected (Ref. AMM TASK 29-23-00-860-001).
(2) Make sure that the Yellow hydraulic system is depressurized (Ref. AMM TASK 29-10-00-864-002).
(3) Make sure that the reservoir of the Yellow hydraulic system is depressurized (Ref. AMM TASK 29-14-00-614-001).
Subtask 32-45-17-010-050-A ** ON A/C NOT FOR ALL (1) Make sure that the PTU isolation coupling is disconnected (Ref. AMM TASK 29-23-00-860-001).
(2) Make sure that the Yellow hydraulic system is depressurized (Ref. AMM TASK 29-10-00-864-002).
(3) Make sure that the reservoir of the Yellow hydraulic system is depressurized (Ref. AMM TASK 29-14-00-614-001).
C. Get Access
(1) Open the right MLG door (Ref. AMM TASK 32-12-00-010-001).
(2) Put the ACCESS PLATFORM 2M (6 FT) in position at the park brake-pressure switch (4).
Subtask 32-45-17-865-050-A ** ON A/C NOT FOR ALL (1) Open the right MLG door (Ref. AMM TASK 32-12-00-010-001).
(2) Put the ACCESS PLATFORM 2M (6 FT) in position at the park brake-pressure switch (4).
D. Open, safety and tag this(these) circuit breaker(s):
Subtask 32-45-17-941-050-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | L/G/Y BRK/PRESS/IND | 61GG | C10 |
| 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 |
| 121VU | HYDRAULIC/PARK BRK/CTL/STBY | 71GG | N37 |
| 121VU | HYDRAULIC/PARK BRK/CTL/NORM | 70GG | N36 |
| 121VU | HYDRAULIC/HYD POWER/Y | 3803GX | N30 |
| 121VU | HYDRAULIC/Y HYD/PUMP ENG2/MONG | 3700GD | Q37 |
| 121VU | HYDRAULIC/Y HYD/PUMP ENG2/CTL | 3701GD | Q36 |
| 123VU | Y HYD/ELEC/PUMP | 3802GX | AB06 |
| 123VU | Y HYD/ELEC/ELEC PUMP/NORM | 3801GX | AB03 |
E. Safety Precautions
(1) Put the WARNING NOTICE(S) in position to tell persons not to pressurize the Yellow hydraulic system:
4. Procedure(1) Put the WARNING NOTICE(S) in position to tell persons not to pressurize the Yellow hydraulic system:
- On the panel 40VU in the cockpit,
- On the ground service panel of the Yellow hydraulic system.
Subtask 32-45-17-020-050-A ** ON A/C NOT FOR ALL
A. Removal of the Park Brake-Pressure Switch 86GG
(1) Obey the hydraulic safety procedures (Ref. AMM TASK 29-00-00-910-002).
(2) Disconnect the electrical connector (5).
(3) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(5) Remove the bolt (6) and the washer (7) and remove the bonding strap (8) from the clamp (9).
(7) Remove the park brake-pressure switch (4) from the union (1).
(8) Remove the packing (11) from the park brake-pressure switch (4).
(9) Put the PLUG-BLANKING in each disconnected line end.
(1) Obey the hydraulic safety procedures (Ref. AMM TASK 29-00-00-910-002).
(2) Disconnect the electrical connector (5).
(3) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
CAUTION:
MAKE SURE THAT THE ELECTRICAL CONNECTOR(S) IS(ARE) DISCONNECTED BEFORE YOU DISCONNECT THE BONDING STRAP(S).
(4) Remove the nut (2) and the washer (3). (5) Remove the bolt (6) and the washer (7) and remove the bonding strap (8) from the clamp (9).
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.
(6) Cut, remove and discard the lockwire (10) from the park brake-pressure switch (4). (7) Remove the park brake-pressure switch (4) from the union (1).
(8) Remove the packing (11) from the park brake-pressure switch (4).
(9) Put the PLUG-BLANKING in each disconnected line end.