DOC AIRBUS | AMM A320FInstallation of the Ground Connector of the Reservoir Pressurization System
TASK 29-14-14-400-001-A
Installation of the Ground Connector of the Reservoir Pressurization System
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 29-14-14-860-052-A
Subtask 29-14-14-420-050-A
Subtask 29-14-14-860-053-A
[Rev.10 from 2021]
2026.04.01 00:24:24 UTC
Installation of the Ground Connector of the Reservoir Pressurization System
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.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 2 | WARNING NOTICE(S) |
| No specific | Torque wrench: range to between 1.54 and 1.42 m.daN (11.36 and 10.47 lbf.ft )  |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.02ABA1) | Phosphate Ester Hydraulic Fluid-General Power - - |
| (Material No.14CCB6) | Testing Medium-Leak Detection - Oxygen System |
| No specific | lockwire 0.8 mm (0.032 in.) |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 195BB |
| REFERENCE | DESIGNATION |
|---|---|
| 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 29-14-00-614-001-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) |
Ground ConnectorSubtask 29-14-14-860-052-A
A. Aircraft Maintenance Configuration
(2) Make sure that the hydraulic systems are depressurized and put them in the maintenance configuration
(Ref. AMM TASK 29-00-00-864-001).
(3) Make sure that the reservoirs of the Green, Blue and Yellow hydraulic systems are depressurized (Ref. AMM TASK 29-14-00-614-001).
(4) Make sure that the WARNING NOTICE(S) are in position to tell persons not to pressurize the Green, Blue and Yellow hydraulic systems:
Subtask 29-14-14-865-051-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 hydraulic systems are depressurized and put them in the maintenance configuration
(Ref. AMM TASK 29-00-00-864-001).
(3) Make sure that the reservoirs of the Green, Blue and Yellow hydraulic systems are depressurized (Ref. AMM TASK 29-14-00-614-001).
(4) Make sure that the WARNING NOTICE(S) are in position to tell persons not to pressurize the Green, Blue and Yellow hydraulic systems:
- in the cockpit on the hydraulic section 40VU of the overhead panel,
- on the ground service panel of the Green, Blue and Yellow hydraulic systems.
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C ALL | |||
| 49VU | HYD/HYD PWR/B WARN/& CTL | 2702GJ | C12 |
| ** 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/HYD POWER/Y | 3803GX | N30 |
| 121VU | HYDRAULIC/G HYD/PUMP ENG1/MONG | 1702GK | R34 |
| ** ON A/C ALL | |||
| 121VU | APU/APU/CTL | 2KD | L42 |
| 121VU | APU/ECB/SPLY | 1KD | L41 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | HYDRAULIC/HYD POWER/Y | 3803GX | N31 |
| 121VU | HYDRAULIC/G HYD/PUMP ENG1/MONG | 1702GK | R33 |
| ** ON A/C ALL | |||
| 123VU | B HYD/ELEC PUMP | 2701GJ | AB09 |
| 123VU | Y HYD/ELEC/PUMP | 3802GX | AB06 |
| 123VU | Y HYD/ELEC/ELEC PUMP/NORM | 3801GX | AB03 |
Subtask 29-14-14-420-050-A
A. Installation of the Ground Connector
(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Remove the blanking plugs from the ground connector (1) and the air pressurization manifold (3).
(4) Apply Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) to the O-ring (2).
(5) Put the O-ring (2) in position on the ground connector (1).
(6) Install the ground connector (1).
(7) TORQUE the ground connector (1) to between 1.54 and 1.42 m.daN (11.36 and 10.47 lbf.ft ).
(8) Safety the ground connector (1) with lockwire 0.8 mm (0.032 in.).
Subtask 29-14-14-790-050-A (1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Remove the blanking plugs from the ground connector (1) and the air pressurization manifold (3).
(4) Apply Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) to the O-ring (2).
(5) Put the O-ring (2) in position on the ground connector (1).
(6) Install the ground connector (1).
(7) TORQUE the ground connector (1) to between 1.54 and 1.42 m.daN (11.36 and 10.47 lbf.ft )
. (8) Safety the ground connector (1) with lockwire 0.8 mm (0.032 in.).
B. Leak Test
(1) Pressurize the reservoirs of the Green, Blue and Yellow hydraulic systems (Ref. AMM TASK 29-14-00-614-002).
(2) Apply Testing Medium-Leak Detection - Oxygen System (Material No.14CCB6) to the connection of the ground connector (1) and the air pressurization manifold (3).
(3) Examine the connection for leaks.
5. Close-up(1) Pressurize the reservoirs of the Green, Blue and Yellow hydraulic systems (Ref. AMM TASK 29-14-00-614-002).
(2) Apply Testing Medium-Leak Detection - Oxygen System (Material No.14CCB6) to the connection of the ground connector (1) and the air pressurization manifold (3).
(3) Examine the connection for leaks.
Subtask 29-14-14-860-053-A
A. Put the aircraft back to the serviceable condition.
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the warning notices from the cockpit and from the ground service panel of the Green, Blue and Yellow hydraulic systems.
Subtask 29-14-14-410-050-A Subtask 29-14-14-865-052-A (1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the warning notices from the cockpit and from the ground service panel of the Green, Blue and Yellow hydraulic systems.
C. Make sure that this(these) circuit breaker(s) is(are) closed:
| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C ALL | |||
| 49VU | HYD/HYD PWR/B WARN/& CTL | 2702GJ | C12 |
| ** 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/HYD POWER/Y | 3803GX | N30 |
| 121VU | HYDRAULIC/G HYD/PUMP ENG1/MONG | 1702GK | R34 |
| ** ON A/C ALL | |||
| 121VU | APU/APU/CTL | 2KD | L42 |
| 121VU | APU/ECB/SPLY | 1KD | L41 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | HYDRAULIC/HYD POWER/Y | 3803GX | N31 |
| 121VU | HYDRAULIC/G HYD/PUMP ENG1/MONG | 1702GK | R33 |
| ** ON A/C ALL | |||
| 123VU | B HYD/ELEC PUMP | 2701GJ | AB09 |
| 123VU | Y HYD/ELEC/PUMP | 3802GX | AB06 |
| 123VU | Y HYD/ELEC/ELEC PUMP/NORM | 3801GX | AB03 |