DOC AIRBUS | AMM A320FInstallation of the Accumulator
TASK 32-44-11-400-001-A
Installation of the Accumulator
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Expendable Parts
E. Referenced Information
3. Job Set-up
Subtask 32-44-11-860-051-A
Subtask 32-44-11-420-050-A
Subtask 32-44-11-410-051-A
[Rev.10 from 2021]
2026.04.01 00:49:30 UTC
Installation of the Accumulator
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
B. Consumable Materials
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.02ABA1) | Phosphate Ester Hydraulic Fluid-General Power - - |
| (Material No.14QFB1) | Wire-Locking Dia: 0.8 mm CRES Nickel Alloy - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 744 | MAIN DOOR |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 1 | ACCUMULATOR | AIPC 32-44-03-01-020 |
| 2 | PACKING | AIPC 32-44-03-01-030 |
| 14 | PACKING | AIPC 32-44-03-01-060 |
| 2 | PACKING | AIPC 32-44-83-02-160 |
| 14 | PACKING | AIPC 32-44-83-02-170 |
| 1 | ACCUMULATOR | AIPC 32-44-83-02-210 |
| 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 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 29-23-00-860-002-A | Connection of the Isolation Coupling of the Power Transfer Unit (PTU) |
| 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 32-43-00-710-001-A | Operational Check of Alternate Braking System |
| TASK 32-43-00-870-002-A | Bleeding of the High Pressure Alternate Braking System |
| TASK 32-44-11-200-001-A | Functional Check of Parking/Emergency Brake Accumulator by Reading the Charge Pressure on the Accumulator Gauge |
| TASK 51-75-13-916-002-A | Repair to a layer of Corrosion Preventive Compound |
Accumulator 2582GMSubtask 32-44-11-860-051-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 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 32-44-11-865-053-A (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).
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
Subtask 32-44-11-941-052-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | L/G/Y BRK/PRESS/IND | 61GG | C10 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | ABCU &/Y BRK/PRESS IND | 61GG | C10 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | HYDRAULIC/HYD POWER/Y | 3803GX | N30 |
| ** ON A/C ALL | |||
| 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/Y HYD/PUMP ENG2/MONG | 3700GD | Q37 |
| 121VU | HYDRAULIC/Y HYD/PUMP ENG2/CTL | 3701GD | Q36 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | HYDRAULIC/HYD POWER/Y | 3803GX | N31 |
| ** ON A/C ALL | |||
| 123VU | Y HYD/ELEC/PUMP | 3802GX | AB06 |
| 123VU | Y HYD/ELEC/ELEC PUMP/NORM | 3801GX | AB03 |
C. Safety Precautions
(1) Make sure that the WARNING NOTICE(S) are in position to tell persons not to pressurize the Yellow hydraulic system:
Subtask 32-44-11-560-050-A (1) Make sure that the WARNING NOTICE(S) are in position to tell persons not to pressurize the Yellow hydraulic system:
- On panel 40VU in the cockpit
- On the ground service panel of the Yellow hydraulic system.
D. Preparation of the Replacement Component
(2) Use a WRENCH - STANDARD to hold the stem valve (15) and remove the adapter (12).
(3) Remove the packing (14) from the adapter (12) and discard it.
(4) Remove the reducer (3).
(5) Remove the packing (2) from the reducer (3) and discard it.
(6) Install blanking plugs in the open ports of the removed accumulator (1).
(7) Make sure that the parts retained from the removed component are clean and in the correct condition.
(8) Apply Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) to:
(10) Remove the blanking plugs from the replacement AIPC 32-44-03-01-020 ACCUMULATOR (1) or the replacement AIPC 32-44-83-02-210 ACCUMULATOR (1).
(11) Install the reducer (3) in the replacement accumulator (1).
(12) TORQUE the reducer (3) to between 6.83 and 6.26 m.daN (50.37 and 46.17 lbf.ft )
.
(13) Install the new AIPC 32-44-03-01-060 PACKING (14) or the new AIPC 32-44-83-02-170 PACKING (14) on the adapter (12).
(14) Install the adapter (12) in the replacement accumulator (1).
(15) Use a WRENCH - STANDARD to hold the stem valve (15) and TORQUE the adapter (12) to between 1.19 and 1.08 m.daN (105.31 and 95.58 lbf.in ).
14QFB1 Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -
Subtask 32-44-11-560-051-A 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.
(1) Remove and discard the lockwire from the adapter (12) of the removed accumulator (1). (2) Use a WRENCH - STANDARD to hold the stem valve (15) and remove the adapter (12).
(3) Remove the packing (14) from the adapter (12) and discard it.
(4) Remove the reducer (3).
(5) Remove the packing (2) from the reducer (3) and discard it.
(6) Install blanking plugs in the open ports of the removed accumulator (1).
(7) Make sure that the parts retained from the removed component are clean and in the correct condition.
(8) Apply Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) to:
- The threads of the reducer (3)
- The new AIPC 32-44-03-01-030 PACKING (2) or the new AIPC 32-44-83-02-160 PACKING (2).
(10) Remove the blanking plugs from the replacement AIPC 32-44-03-01-020 ACCUMULATOR (1) or the replacement AIPC 32-44-83-02-210 ACCUMULATOR (1).
(11) Install the reducer (3) in the replacement accumulator (1).
(12) TORQUE the reducer (3) to between 6.83 and 6.26 m.daN (50.37 and 46.17 lbf.ft )
. (13) Install the new AIPC 32-44-03-01-060 PACKING (14) or the new AIPC 32-44-83-02-170 PACKING (14) on the adapter (12).
(14) Install the adapter (12) in the replacement accumulator (1).
(15) Use a WRENCH - STANDARD to hold the stem valve (15) and TORQUE the adapter (12) to between 1.19 and 1.08 m.daN (105.31 and 95.58 lbf.in )
. NOTE: This will make sure that the bladder of the accumulator (1) does not twist when you tighten the adapter (12).
(16) Safety the adapter (12) with E. Preparation for Installation
(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. Procedure(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.
Subtask 32-44-11-420-050-A
A. Installation of the Accumulator 2582GM
(1) Obey the hydraulic safety procedures (Ref. AMM TASK 29-00-00-910-002).
(2) Put the accumulator (1) in the correct position on the aircraft structure. Make sure that you can read the pressure gage (13) on the adapter (12).
(3) Put the clamps (7) in position and install the washers (8) and the nuts (9).
(4) Install the washer (6) and the nut (5).
(5) Remove the blanking plugs and connect the connector (4) to the reducer (3).
(6) TORQUE the connector (4) to between 5.9 and 5.4 m.daN (43.51 and 39.82 lbf.ft ).
(7) Paint a red line across the connector (4) (Ref. AMM TASK 20-23-22-910-001).
Subtask 32-44-11-865-054-A (1) Obey the hydraulic safety procedures (Ref. AMM TASK 29-00-00-910-002).
(2) Put the accumulator (1) in the correct position on the aircraft structure. Make sure that you can read the pressure gage (13) on the adapter (12).
(3) Put the clamps (7) in position and install the washers (8) and the nuts (9).
(4) Install the washer (6) and the nut (5).
(5) Remove the blanking plugs and connect the connector (4) to the reducer (3).
(6) TORQUE the connector (4) to between 5.9 and 5.4 m.daN (43.51 and 39.82 lbf.ft )
. (7) Paint a red line across the connector (4) (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 32-44-11-860-052-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | L/G/Y BRK/PRESS/IND | 61GG | C10 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | ABCU &/Y BRK/PRESS IND | 61GG | C10 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | HYDRAULIC/HYD POWER/Y | 3803GX | N30 |
| ** ON A/C ALL | |||
| 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/Y HYD/PUMP ENG2/MONG | 3700GD | Q37 |
| 121VU | HYDRAULIC/Y HYD/PUMP ENG2/CTL | 3701GD | Q36 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | HYDRAULIC/HYD POWER/Y | 3803GX | N31 |
| ** ON A/C ALL | |||
| 123VU | Y HYD/ELEC/PUMP | 3802GX | AB06 |
| 123VU | Y HYD/ELEC/ELEC PUMP/NORM | 3801GX | AB03 |
C. Preparation for Test
(1) Do the nitrogen pressure check on brake accumulator (Ref. AMM TASK 32-44-11-200-001).
(2) Connect the PTU isolation coupling (Ref. AMM TASK 29-23-00-860-002).
(3) Bleed the alternate brake system (Ref. AMM TASK 32-43-00-870-002).
(4) If necessary fill the reservoir of the Yellow hydraulic system to the correct level (Ref. AMM TASK 12-12-29-611-001).
(5) Open the right MLG door (Ref. AMM TASK 32-12-00-010-001).
Subtask 32-44-11-710-050-A (1) Do the nitrogen pressure check on brake accumulator (Ref. AMM TASK 32-44-11-200-001).
(2) Connect the PTU isolation coupling (Ref. AMM TASK 29-23-00-860-002).
(3) Bleed the alternate brake system (Ref. AMM TASK 32-43-00-870-002).
(4) If necessary fill the reservoir of the Yellow hydraulic system to the correct level (Ref. AMM TASK 12-12-29-611-001).
(5) Open the right MLG door (Ref. AMM TASK 32-12-00-010-001).
D. Test
(1) Do an operational test of the alternate braking system with anti-skid (Ref. AMM TASK 32-43-00-710-001).
(2) Make sure that there is no external hydraulic fluid leakage from accumulator 2582GM.
5. Close-up(1) Do an operational test of the alternate braking system with anti-skid (Ref. AMM TASK 32-43-00-710-001).
(2) Make sure that there is no external hydraulic fluid leakage from accumulator 2582GM.
Subtask 32-44-11-410-051-A
A. Close Access
(1) Apply corrosion protection to the connector (4) and the adjacent area (Ref. AMM TASK 51-75-13-916-002).
(2) Remove the container.
(3) Remove the WARNING NOTICE(S).
(4) Remove the access platform(s).
(5) Make sure that the work area is clean and clear of tools and other items.
(6) Close the right MLG door (Ref. AMM TASK 32-12-00-410-001).
(7) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(1) Apply corrosion protection to the connector (4) and the adjacent area (Ref. AMM TASK 51-75-13-916-002).
(2) Remove the container.
(3) Remove the WARNING NOTICE(S).
(4) Remove the access platform(s).
(5) Make sure that the work area is clean and clear of tools and other items.
(6) Close the right MLG door (Ref. AMM TASK 32-12-00-410-001).
(7) Remove the ground support and maintenance equipment, the special and standard tools and all other items.