DOC AIRBUS | AMM A320FRemoval of the Selector-Valve Manifold Assembly
TASK 32-31-31-000-001-A
Removal of the Selector-Valve Manifold Assembly
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Referenced Information
3. Job Set-up
Subtask 32-31-31-860-050-A
Subtask 32-31-31-020-051-A
[Rev.10 from 2021]
2026.04.01 00:44:56 UTC
Removal of the Selector-Valve Manifold Assembly
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.
FIN: 2524GM
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) - ADJUSTABLE |
| No specific | AR | CAP - BLANKING |
| No specific | 1 | CONTAINER 5 L (1.32 USGAL) |
| No specific | AR | PLUG - BLANKING |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| No specific | 2 | WARNING NOTICE(S) |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 24-41-00-862-002-A | De-energize the Aircraft Electrical Circuits Supplied from the External Power |
| TASK 24-41-00-862-002-A-01 | De-energize the Aircraft Electrical Circuits Supplied from the APU |
| TASK 24-41-00-862-002-A-02 | De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2) |
| TASK 29-00-00-910-002-A | Safety Procedures of the Hydraulic System |
| TASK 29-10-00-864-001-A | Depressurize the Green 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 32-00-00-860-001-A | Flight Configuration Precautions with Electrical Power |
| TASK 32-00-00-860-001-A-01 | Flight Configuration Precautions without Electrical Power |
| TASK 32-12-00-010-001-A | Open the Main Gear Doors for Access |
Selector-Valve Manifold AssemblySubtask 32-31-31-860-050-A
A. Aircraft Maintenance Configuration
(1) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).
(2) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.
(3) Depressurize the Green hydraulic system (Ref. AMM TASK 29-10-00-864-001).
Subtask 32-31-31-010-050-A Subtask 32-31-31-869-050-A (1) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).
(2) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.
(3) Depressurize the Green hydraulic system (Ref. AMM TASK 29-10-00-864-001).
C. Obey the flight configuration precautions (Ref. AMM TASK 32-00-00-860-001)
(1) Depressurize the reservoir of the Green hydraulic system (Ref. AMM TASK 29-14-00-614-001).
(2) Disconnect the PTU isolation coupling (Ref. AMM TASK 29-23-00-860-001).
(3) Put the CONTAINER 5 L (1.32 USGAL) below the manifold assembly 2524GM to collect the hydraulic fluid leakage.
Subtask 32-31-31-865-050-A (1) Depressurize the reservoir of the Green hydraulic system (Ref. AMM TASK 29-14-00-614-001).
(2) Disconnect the PTU isolation coupling (Ref. AMM TASK 29-23-00-860-001).
(3) Put the CONTAINER 5 L (1.32 USGAL) below the manifold assembly 2524GM to collect the hydraulic fluid leakage.
D. Open, safety and tag this(these) circuit breaker(s):
Subtask 32-31-31-941-051-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C ALL | |||
| 49VU | L/G/LGCIU/SYS1/NORM | 1GA | C09 |
| ** 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 | HYDRAULIC/G HYD/PUMP ENG1/MONG | 1702GK | R34 |
| ** ON A/C ALL | |||
| 121VU | HYDRAULIC/LGCIU/SYS2 | 2GA | Q35 |
| 121VU | HYDRAULIC/LGCIU/SYS1/GRND SPLY | 52GA | Q34 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | HYDRAULIC/G HYD/PUMP ENG1/MONG | 1702GK | R33 |
E. Safety Precautions
(1) Put the WARNING NOTICE(S) in position to tell persons not to pressurize the Green hydraulic system:
4. Procedure(1) Put the WARNING NOTICE(S) in position to tell persons not to pressurize the Green hydraulic system:
- on the panel 40VU in the cockpit
- on the ground service panel of the Green hydraulic system.
Subtask 32-31-31-020-051-A
A. Removal of the Selector-Valve Manifold Assembly
(1) Disconnect the electrical connectors (1), (2), (15), and (18) from the selector-valve manifold assembly (8).
(2) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(3) Disconnect the reducer tee (12) from the selector-valve manifold assembly (8).
(4) Disconnect the hydraulic pipes (9), (11), (14), (13), (10), (16), (17), (19) and (20) from the selector-valve manifold assembly (8).
(5) Remove the bolt (3), the washer (4) and disconnect the bonding strap (5) from the selector-valve manifold assembly (8).
(6) Remove the bolts (6) and the washers (7).
(7) Carefully remove the selector-valve manifold assembly (8) from the aircraft.
(8) Put the PLUG-BLANKING in each disconnected line end.
(1) Disconnect the electrical connectors (1), (2), (15), and (18) from the selector-valve manifold assembly (8).
(2) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(3) Disconnect the reducer tee (12) from the selector-valve manifold assembly (8).
(4) Disconnect the hydraulic pipes (9), (11), (14), (13), (10), (16), (17), (19) and (20) from the selector-valve manifold assembly (8).
(5) Remove the bolt (3), the washer (4) and disconnect the bonding strap (5) from the selector-valve manifold assembly (8).
(6) Remove the bolts (6) and the washers (7).
(7) Carefully remove the selector-valve manifold assembly (8) from the aircraft.
(8) Put the PLUG-BLANKING in each disconnected line end.