DOC AIRBUS | AMM A320FReactivation of the ACT Transfer Valve
TASK 28-28-00-440-009-A
Reactivation of the ACT Transfer Valve
MMEL 28-28-01C
ACT AUTO TRANSFER SYSTEM
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Referenced Information
3. Job Set-up
Subtask 28-28-00-860-162-A ** ON A/C NOT FOR ALL
Subtask 28-28-00-440-057-A ** ON A/C NOT FOR ALL
Subtask 28-28-00-865-150-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.02 06:17:47 UTC
Reactivation of the ACT Transfer Valve
WARNING:
OBEY THE FUEL SAFETY PROCEDURES.
1. Reason for the JobMMEL 28-28-01C
ACT AUTO TRANSFER SYSTEM
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 1M(3 FT) |
| No specific | AR | TIE WRAP(S) |
| No specific | 1 | WARNING NOTICE(S) |
| T720456 | AR | TOOL - VALVE LOCKING |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 24-42-00-861-001-A | Energize the Ground Service Network from the External Power |
| TASK 24-42-00-862-001-A | De-energize the Ground Service Network Supplied from the External Power |
| TASK 28-00-00-910-001-A | Fuel Safety Procedures |
| TASK 28-28-33-000-001-A | Removal of the ACT Fuel Transfer-Valve |
| TASK 28-28-33-400-001-A | Installation of the ACT Fuel Transfer-Valve |
| TASK 28-28-53-400-001-A | Installation of the ACT Transfer-Valve Actuator |
| 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 57-17-11-000-003-A | Removal of the Protective Cover of the ACT-Equipment Support Door |
| TASK 57-17-11-400-003-A | Installation of the Protective Cover of the ACT-Equipment Support Door |
| TSM 28-28-00-810-802 | Fuel - ACT 1 Manual Transfer Failure (On The Ground) |
Fuel Transfer Valve 165QMSubtask 28-28-00-860-162-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) Obey the fuel safety procedures when you work on the fuel system (Ref. AMM TASK 28-00-00-910-001).
(2) Energize the ground service network
(Ref. AMM TASK 24-42-00-861-001).
(3) On the APU section of the overhead panel 25VU, make sure that the APU/MASTER SW pushbutton switch is released (the ON legend is off).
(4) On the FUEL section of the panel 40VU, make sure that all tank pump pushbutton switches are released (the OFF legends are on).
(5) Put a WARNING NOTICE(S) in position:
Subtask 28-28-00-010-084-A ** ON A/C NOT FOR ALL (1) Obey the fuel safety procedures when you work on the fuel system (Ref. AMM TASK 28-00-00-910-001).
(2) Energize the ground service network
(Ref. AMM TASK 24-42-00-861-001).
(3) On the APU section of the overhead panel 25VU, make sure that the APU/MASTER SW pushbutton switch is released (the ON legend is off).
(4) On the FUEL section of the panel 40VU, make sure that all tank pump pushbutton switches are released (the OFF legends are on).
(5) Put a WARNING NOTICE(S) in position:
- On the APU section of the overhead panel 25VU, to tell persons not to operate the APU/MASTER SW pushbutton switch.
- On the FUEL section of the panel 40VU, to tell persons not to operate the fuel system.
- On the ENG/APU FIRE panel located on the overhead panel 20VU, to tell persons not to operate the fire extinguishing system.
B. Get Access
(1) Open the left Main Gear Door for Access (Ref. AMM TASK 32-12-00-010-001).
(2) Put an ACCESS PLATFORM 1M(3 FT) in position in the left MLG bay.
(3) Remove the Protective Cover from the ACT-Equipment Support Door (Ref. AMM TASK 57-17-11-000-003).
Subtask 28-28-00-865-163-A ** ON A/C NOT FOR ALL (1) Open the left Main Gear Door for Access (Ref. AMM TASK 32-12-00-010-001).
(2) Put an ACCESS PLATFORM 1M(3 FT) in position in the left MLG bay.
(3) Remove the Protective Cover from the ACT-Equipment Support Door (Ref. AMM TASK 57-17-11-000-003).
C. 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 | |||
| 121VU | ACT1/REFUEL & SPLY | 33QU | L29 |
| 121VU | ACT XFR VALVE MAN CTL | 30QH | N29 |
| 121VU | ACT1/CTL & SPLY | 9QH | P29 |
Subtask 28-28-00-440-057-A ** ON A/C NOT FOR ALL
A. Reactivation of the ACT Transfer Valve
(1) Remove the TIE WRAP(S) from the electrical connectors (4) and (11), and from the adjacent electrical harness.
(2) Remove the CAP-BLANKING from each electrical connector and receptacle.
(3) Make sure that all the electrical connections are clean and in the correct condition.
(4) Remove the T720456 TOOL - VALVE LOCKING from the flange of the ACT transfer valve.
(5) Do an inspection of the component interfaces and the adjacent area.
(6) If the ACT Fuel Transfer Valve had a failure in the closed position, replace the ACT Fuel Transfer-Valve (Ref. AMM TASK 28-28-33-000-001) (Ref. AMM TASK 28-28-33-400-001).
(7) If the actuator (3) of the ACT Fuel Transfer Valve is unserviceable, install a new ACT Transfer-Valve Actuator (Ref. AMM TASK 28-28-53-400-001).
(8) If you are not sure if the removed actuator is serviceable:
5. Close-up(1) Remove the TIE WRAP(S) from the electrical connectors (4) and (11), and from the adjacent electrical harness.
(2) Remove the CAP-BLANKING from each electrical connector and receptacle.
(3) Make sure that all the electrical connections are clean and in the correct condition.
(4) Remove the T720456 TOOL - VALVE LOCKING from the flange of the ACT transfer valve.
(5) Do an inspection of the component interfaces and the adjacent area.
(6) If the ACT Fuel Transfer Valve had a failure in the closed position, replace the ACT Fuel Transfer-Valve (Ref. AMM TASK 28-28-33-000-001) (Ref. AMM TASK 28-28-33-400-001).
(7) If the actuator (3) of the ACT Fuel Transfer Valve is unserviceable, install a new ACT Transfer-Valve Actuator (Ref. AMM TASK 28-28-53-400-001).
(8) If you are not sure if the removed actuator is serviceable:
- install the removed actuator (3) (Ref. AMM TASK 28-28-53-400-001),
- do the trouble shooting of the ACT Fuel Transfer Valve (1) and the actuator (3) TSM 28-28-00-810-802.
Subtask 28-28-00-865-150-A ** ON A/C NOT FOR ALL
A. Make sure that this(these) circuit breaker(s) is(are) closed:
Subtask 28-28-00-860-163-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 121VU | ACT1/REFUEL & SPLY | 33QU | L29 |
| 121VU | ACT XFR VALVE MAN CTL | 30QH | N29 |
| 121VU | ACT1/CTL & SPLY | 9QH | P29 |
B. Put the aircraft back to the serviceable condition.
(1) Install the Protective Cover on the ACT-Equipment Support Door (Ref. AMM TASK 57-17-11-400-003).
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Remove the access platform(s).
(4) Close the Main Gear Doors (Ref. AMM TASK 32-12-00-410-001).
(5) De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001).
(6) Remove the WARNING NOTICE(S).
(7) Close the applicable entry in the aircraft technical log book.
(1) Install the Protective Cover on the ACT-Equipment Support Door (Ref. AMM TASK 57-17-11-400-003).
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Remove the access platform(s).
(4) Close the Main Gear Doors (Ref. AMM TASK 32-12-00-410-001).
(5) De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001).
(6) Remove the WARNING NOTICE(S).
(7) Close the applicable entry in the aircraft technical log book.