DOC AIRBUS | AMM A320FInstallation of the Flexible Hose Assembly
TASK 32-31-39-400-001-A
Installation of the Flexible Hose Assembly
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Referenced Information
3. Job Set-up
Subtask 32-31-39-860-051-A
Subtask 32-31-39-420-050-A ** ON A/C NOT FOR ALL
Subtask 32-31-39-410-050-A
[Rev.10 from 2021]
2026.04.01 00:45:17 UTC
Installation of the Flexible Hose 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.
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 | 2 | WARNING NOTICE(S) |
| No specific | Torque wrench: range to between 3.2 and 2.9 m.daN (23.60 and 21.39 lbf.ft )  |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.02ABA1) | Phosphate Ester Hydraulic Fluid-General Power - - |
| (Material No.04SAB2) | Varnish Polyurethane-- Marking Structure |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 12-12-29-611-001-A | Fill the Hydraulic Fluid Reservoir with a Hand Pump |
| TASK 20-23-22-910-001-A | Marking of the Unions after Application of Standard or Specific Tightening Torque |
| TASK 24-41-00-861-002-A | Energize the Aircraft Electrical Circuits from the External Power |
| TASK 24-41-00-861-002-A-01 | Energize the Aircraft Electrical Circuits from the APU |
| TASK 24-41-00-861-002-A-02 | Energize the Aircraft Electrical Circuits from 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 29-23-00-860-002-A | Connection 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 32-00-00-860-002-A | Ground Configuration after Flight Configuration with Electrical Power |
| TASK 32-00-00-860-002-A-01 | Ground Configuration after Flight Configuration without Electrical Power |
| 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 32-31-00-710-002-A | Operational Test of the Landing Gear Doors (With False Targets) |
| TASK 32-31-00-710-002-A-01 | Operational Test of the Landing Gear Doors (Without False Targets) |
| TASK 51-75-13-916-002-A | Repair to a layer of Corrosion Preventive Compound |
 Flexible Hose Assembly 2765GM (2768GM) and 2766GM (2767GM) - Location and Detail ** ON A/C NOT FOR ALL | |
| Flexible Hose Assembly 2765GM (2768GM) and 2766GM (2767GM) - Location and Detail ** ON A/C NOT FOR ALL | |
| Flexible Hose Assembly 2765GM (2768GM) and 2766GM (2767GM) - Location and Detail ** ON A/C NOT FOR ALL | |
Subtask 32-31-39-860-051-A
A. 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 aircraft electrical circuits are energized (Ref. AMM TASK 24-41-00-861-002).
(3) Make sure that the flight configuration precautions were obeyed (Ref. AMM TASK 32-00-00-860-001).
(4) Make sure that the Green hydraulic system is depressurized (Ref. AMM TASK 29-10-00-864-001).
(5) Make sure that the reservoir of the Green hydraulic system is depressurized (Ref. AMM TASK 29-14-00-614-001).
Subtask 32-31-39-865-051-A (1) Make sure that the PTU isolation coupling is disconnected (Ref. AMM TASK 29-23-00-860-001).
(2) Make sure that the aircraft electrical circuits are energized (Ref. AMM TASK 24-41-00-861-002).
(3) Make sure that the flight configuration precautions were obeyed (Ref. AMM TASK 32-00-00-860-001).
(4) Make sure that the Green hydraulic system is depressurized (Ref. AMM TASK 29-10-00-864-001).
(5) Make sure that the reservoir of the Green hydraulic system is depressurized (Ref. AMM TASK 29-14-00-614-001).
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
Subtask 32-31-39-941-051-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 |
C. Safety Precautions
(1) Make sure that the WARNING NOTICE(S) are in position to tell persons not to pressurize the Green hydraulic system:
Subtask 32-31-39-560-050-A ** ON A/C NOT FOR ALL (1) Make sure that the WARNING NOTICE(S) are in position to tell persons not to pressurize the Green hydraulic system:
- On panel 40VU in the cockpit
- On the ground service panel of the Green hydraulic system.
D. Preparation for Installation
Flexible Hose Assembly 2765GM (2768GM) and 2766GM (2767GM) - Location and Detail ** 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) Remove the PLUG-BLANKING from each disconnected line end.
(5) Obey the hydraulic safety procedures (Ref. AMM TASK 29-00-00-910-002).
(6) Lubricate the threads of the swivel joints (4) and (3) and the elbow joints (14) with Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) .
Subtask 32-31-39-560-050-C ** ON A/C NOT FOR ALL Flexible Hose Assembly 2765GM (2768GM) and 2766GM (2767GM) - Location and Detail ** ON A/C NOT FOR ALL (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) Remove the PLUG-BLANKING from each disconnected line end.
(5) Obey the hydraulic safety procedures (Ref. AMM TASK 29-00-00-910-002).
(6) Lubricate the threads of the swivel joints (4) and (3) and the elbow joints (14) with Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) .
D. Preparation for Installation
Flexible Hose Assembly 2765GM (2768GM) and 2766GM (2767GM) - Location and Detail ** 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) Remove the PLUG-BLANKING from each disconnected line end.
(5) Obey the hydraulic safety procedures (Ref. AMM TASK 29-00-00-910-002).
(6) Lubricate the threads of the swivel joints (4) and (3) and the elbow joints (10) with Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) .
Subtask 32-31-39-560-050-D ** ON A/C NOT FOR ALL Flexible Hose Assembly 2765GM (2768GM) and 2766GM (2767GM) - Location and Detail ** ON A/C NOT FOR ALL (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) Remove the PLUG-BLANKING from each disconnected line end.
(5) Obey the hydraulic safety procedures (Ref. AMM TASK 29-00-00-910-002).
(6) Lubricate the threads of the swivel joints (4) and (3) and the elbow joints (10) with Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) .
D. Preparation for Installation
Flexible Hose Assembly 2765GM (2768GM) and 2766GM (2767GM) - Location and Detail ** 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) Remove the PLUG-BLANKING from each disconnected line end.
(5) Obey the hydraulic safety procedures (Ref. AMM TASK 29-00-00-910-002).
(6) Lubricate the threads of the swivel joints (4) and (3) and the elbow joints (11) with Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) .
4. Procedure Flexible Hose Assembly 2765GM (2768GM) and 2766GM (2767GM) - Location and Detail ** ON A/C NOT FOR ALL (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) Remove the PLUG-BLANKING from each disconnected line end.
(5) Obey the hydraulic safety procedures (Ref. AMM TASK 29-00-00-910-002).
(6) Lubricate the threads of the swivel joints (4) and (3) and the elbow joints (11) with Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) .
Subtask 32-31-39-420-050-A ** ON A/C NOT FOR ALL
A. Installation of the Flexible Hose Assembly 2765GM (2768GM) and 2766GM (2767GM)
(1) Put the flexible hoses (1) and (6) in position.
(2) Install the connectors (2) and (5) to the swivel joints (4) and (3).
(3) Install the connectors (11) with the washers (13) and the nuts (12) to the elbow joints (14) and the brackets (15).
(4) TORQUE the connectors (2), (5) and (11) to between 3.2 and 2.9 m.daN (23.60 and 21.39 lbf.ft ).
(5) Install the clamps (9) with the bolts (10), the washers (8) and the nuts (7).
(6) Put marks on all the connectors with Varnish Polyurethane-- Marking Structure (Material No.04SAB2) .
Subtask 32-31-39-420-050-C ** ON A/C NOT FOR ALL (1) Put the flexible hoses (1) and (6) in position.
(2) Install the connectors (2) and (5) to the swivel joints (4) and (3).
(3) Install the connectors (11) with the washers (13) and the nuts (12) to the elbow joints (14) and the brackets (15).
(4) TORQUE the connectors (2), (5) and (11) to between 3.2 and 2.9 m.daN (23.60 and 21.39 lbf.ft )
. (5) Install the clamps (9) with the bolts (10), the washers (8) and the nuts (7).
(6) Put marks on all the connectors with Varnish Polyurethane-- Marking Structure (Material No.04SAB2) .
A. Installation of the Flexible Hose Assembly
(1) Put the flexible hoses (1) and (6) in position.
(3) Install the connectors (7) with the washers (9) and the nuts (8) to the elbow joints (10) and the brackets (11).
(4) TORQUE the connectors (2), (5) and (7) to between 3.2 and 2.9 m.daN (23.60 and 21.39 lbf.ft ).
(5) Identify the tightened union nuts with a red line
(Ref. AMM TASK 20-23-22-910-001).
Subtask 32-31-39-420-050-D ** ON A/C NOT FOR ALL (1) Put the flexible hoses (1) and (6) in position.
NOTE: When you connect the flexible hoses (1) and (6) to the swivel joints (4) and (3), the swivel joint must be aligned parallel to the aircraft axis. A swivel joint that is not aligned correctly can decrease the bend radius of the flexible hose. This can cause increased strain on the hose and possible hose damage.
(2) Install the connectors (2) and (5) to the swivel joints (4) and (3). (3) Install the connectors (7) with the washers (9) and the nuts (8) to the elbow joints (10) and the brackets (11).
(4) TORQUE the connectors (2), (5) and (7) to between 3.2 and 2.9 m.daN (23.60 and 21.39 lbf.ft )
. (5) Identify the tightened union nuts with a red line
(Ref. AMM TASK 20-23-22-910-001).
A. Installation of the Flexible Hose Assembly
(1) Put the flexible hoses (1) and (6) in position on the bracket (9).
(2) Put the hose flange (10) in position on the bracket (9).
(3) Install the connector (12) on the elbow joint (11).
(4) Install the washers (8), the bolts (7) and the nuts (13).
(5) Align the swivel joints (3) and (4).
(7) TORQUE the connectors (2), (5) and (12) to between 3.2 and 2.9 m.daN (23.60 and 21.39 lbf.ft ).
(8) Identify the tightened union nuts with a red line
(Ref. AMM TASK 20-23-22-910-001).
Subtask 32-31-39-865-052-A (1) Put the flexible hoses (1) and (6) in position on the bracket (9).
(2) Put the hose flange (10) in position on the bracket (9).
(3) Install the connector (12) on the elbow joint (11).
(4) Install the washers (8), the bolts (7) and the nuts (13).
(5) Align the swivel joints (3) and (4).
NOTE: When you connect the flexible hoses (1) and (6) to the swivel joints (3) and (4), the swivel joint must be aligned parallel to the aircraft axis. A swivel joint that is not aligned correctly can decrease the bend radius of the flexible hose. This can cause increased strain on the hose and possible hose damage.
(6) Install the connectors (2) and (5) to the swivel joints (3) and (4). (7) TORQUE the connectors (2), (5) and (12) to between 3.2 and 2.9 m.daN (23.60 and 21.39 lbf.ft )
. (8) Identify the tightened union nuts with a red line
(Ref. AMM TASK 20-23-22-910-001).
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 32-31-39-860-052-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 |
C. Preparation of Test
(1) Connect the PTU isolation coupling (Ref. AMM TASK 29-23-00-860-002).
(2) If the flight configuration precautions were obeyed, put the aircraft back to the serviceable condition (Ref. AMM TASK 32-00-00-860-002).
(3) Remove the WARNING NOTICE(S).
(4) Remove the access platform(s).
(5) Remove the container.
(6) Close the applicable MLG door (Ref. AMM TASK 32-12-00-410-001).
(7) If necessary, fill the reservoir of the Green hydraulic system to the correct level (Ref. AMM TASK 12-12-29-611-001).
Subtask 32-31-39-710-050-A (1) Connect the PTU isolation coupling (Ref. AMM TASK 29-23-00-860-002).
(2) If the flight configuration precautions were obeyed, put the aircraft back to the serviceable condition (Ref. AMM TASK 32-00-00-860-002).
(3) Remove the WARNING NOTICE(S).
(4) Remove the access platform(s).
(5) Remove the container.
(6) Close the applicable MLG door (Ref. AMM TASK 32-12-00-410-001).
(7) If necessary, fill the reservoir of the Green hydraulic system to the correct level (Ref. AMM TASK 12-12-29-611-001).
D. Do the Operational Test of the MLG doors (Ref. AMM TASK 32-31-00-710-002).
(1) Open the applicable MLG door (Ref. AMM TASK 32-12-00-010-001).
(2) Make sure that the there is no hydraulic fluid leakage from the flexible hose assembly 2765GM (2768GM) and 2766GM (2767GM).
5. Close-up(1) Open the applicable MLG door (Ref. AMM TASK 32-12-00-010-001).
(2) Make sure that the there is no hydraulic fluid leakage from the flexible hose assembly 2765GM (2768GM) and 2766GM (2767GM).
Subtask 32-31-39-410-050-A
A. Close Access
(1) Apply corrosion protection to the flexible hose assembly 2765GM (2768GM) and 2766GM (2767GM) and the adjacent areas (Ref. AMM TASK 51-75-13-916-002).
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Close the applicable MLG door (Ref. AMM TASK 32-12-00-410-001).
(4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(1) Apply corrosion protection to the flexible hose assembly 2765GM (2768GM) and 2766GM (2767GM) and the adjacent areas (Ref. AMM TASK 51-75-13-916-002).
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Close the applicable MLG door (Ref. AMM TASK 32-12-00-410-001).
(4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.