DOC AIRBUS | AMM A320FInstallation of the Green Hydraulic Reservoir
TASK 29-11-41-400-001-A
Installation of the Green Hydraulic Reservoir
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 29-11-41-860-055-A
Subtask 29-11-41-560-050-B
Subtask 29-11-41-860-051-A
[Rev.10 from 2021]
2026.04.01 08:09:25 UTC
Installation of the Green Hydraulic Reservoir
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
B. Consumable Materials
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.02ABA1) | Phosphate Ester Hydraulic Fluid-General Power - - |
| (Material No.14CCB6) | Testing Medium-Leak Detection - Oxygen System |
| No specific | lockwire, corrosion-resistant steel dia 0.8 mm (0.032 in.) |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 147 | MAIN GEAR WELL AND HYDRAULIC COMPARTMENT |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 23 | O-RING | AIPC 29-11-41-01-190 |
| 18 | O-RING | AIPC 29-11-41-01-200 |
| 22 | O-RING | AIPC 29-11-41-01-200 |
| 5 | O-RING | AIPC 29-11-41-01-200 |
| 6 | O-RING | AIPC 29-14-03-10-020 |
| 6 | O-RING | AIPC 29-14-83-12-020 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 12-12-29-611-001-A | Fill the Hydraulic Fluid Reservoir with a Hand Pump |
| TASK 12-12-29-611-002-A | Fill the Hydraulic Fluid Reservoir with a Hydraulic Service Cart |
| TASK 20-28-00-912-802-A | Electrical Bonding - General Maintenance Procedure |
| 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 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 29-00-00-864-001-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 29-14-00-614-002-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) |
| 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 29-31-00-710-001-A | Functional Check of Reservoir Low Level Warning |
| TASK 29-34-00-710-001-A | Operational Test of Reservoir Low Air Pressure Warning |
| TASK 31-60-00-860-001-A | EIS Start Procedure |
| TASK 31-60-00-860-002-A | EIS Stop Procedure |
| 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 |
Reservoir of the Green Hydraulic System (Sheet 1)Subtask 29-11-41-860-055-A
A. Aircraft Maintenance Configuration
(2) Make sure that the Green hydraulic system is depressurized and put it in the maintenance configuration.
(Ref. AMM TASK 29-00-00-864-001).
(3) Make sure that the main doors of the main gear are open (Ref. AMM TASK 32-12-00-010-001).
(4) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position at the main doors of the main gear.
(5) Make sure that the isolation coupling of the Power Transfer Unit (PTU) is disconnected (Ref. AMM TASK 29-23-00-860-001).
(6) Make sure that the CONTAINER - HYDRAULIC FLUID RESISTANT is in position below the connections of the reservoir.
(7) Make sure that the WARNING NOTICE(S) are in position to tell persons not to pressurize the Green hydraulic system:
Subtask 29-11-41-865-051-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 Green hydraulic system is depressurized and put it in the maintenance configuration.
(Ref. AMM TASK 29-00-00-864-001).
(3) Make sure that the main doors of the main gear are open (Ref. AMM TASK 32-12-00-010-001).
(4) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position at the main doors of the main gear.
(5) Make sure that the isolation coupling of the Power Transfer Unit (PTU) is disconnected (Ref. AMM TASK 29-23-00-860-001).
(6) Make sure that the CONTAINER - HYDRAULIC FLUID RESISTANT is in position below the connections of the reservoir.
(7) Make sure that the WARNING NOTICE(S) are in position to tell persons not to pressurize the Green hydraulic system:
- in the cockpit on the hydraulic section 40VU of the overhead panel,
- on the ground service panel of the Green hydraulic system.
B. 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 | |||
| 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/LOW/LVL/IND | 1832GQ | N32 |
| 121VU | HYDRAULIC/HYD/QTY/IND | 1831GQ | P35 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | HYDRAULIC/G HYD/PUMP ENG1/MONG | 1702GK | R33 |
Subtask 29-11-41-560-050-B
A. Preparation of the Replacement Component
(1) Remove the parts which are attached to the removed reservoir as follows:
(a) Remove the reducer (24) and discard the O-ring (23).
(b) Remove the pressure gage (3) together with its adapter (4) and discard the O-ring (5).
(c) Remove and discard the lockwire from the pressure relief valve (7).
(d) Remove the pressure relief valve (7) and discard the O-ring (6).
(e) Remove and discard the lockwire from the pressure switch (17).
(f) Remove the pressure switch (17) and discard the O-ring (18).
(g) Remove the adapter (21) and discard the O-ring (22).
(h) Remove the elbow (37) from the suction port on the bottom of the reservoir (16).
(i) Remove and discard the lockwire from the pressure gage (3).
(j) Remove the pressure gage (3) from the adapter (4).
(k) Install a PLUG - BLANKING on all open ports of the reservoir.
(2) Install the removed parts on the replacement reservoir as follows:
(a) Immediately before installation, lubricate all replaced O-rings with Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) .
(b) Remove the blanking plugs from the ports on the top of the reservoir (16).
(c) Put the new AIPC 29-11-41-01-200 O-RING (22) in position and install the adapter (21).
(d) TORQUE the adapter (21) to between 1.19 and 1.08 m.daN (105.31 and 95.58 lbf.in )
.
(e) Put the new AIPC 29-11-41-01-200 O-RING (5) in position and install the adapter (4).
(f) TORQUE the adapter (4) to between 1.19 and 1.08 m.daN (105.31 and 95.58 lbf.in ).
(g) Install the pressure gage (3) on the adapter (4).
(h) Make sure that you can read the pressure gage clearly when it is installed.
(i) Hold the adapter (4) with a wrench and TORQUE the pressure gage connector (3) to between 1.71 and 1.52 m.daN (12.61 and 11.21 lbf.ft ).
(j) Safety the pressure gage (3) with the lockwire, corrosion-resistant steel dia 0.8 mm (0.032 in.).
(k) Put the new AIPC 29-11-41-01-200 O-RING (18) in position and install the pressure switch (17).
(l) TORQUE the pressure switch (17) to between 1.71 and 1.52 m.daN (12.61 and 11.21 lbf.ft ).
(m) Safety the pressure switch with the lockwire, corrosion-resistant steel dia 0.8 mm (0.032 in.).
(n) Put the new AIPC 29-14-03-10-020 O-RING (6) or AIPC 29-14-83-12-020 O-RING (6) in position and install the pressure relief valve (7).
(o) TORQUE the pressure relief valve (7) to between 3.47 and 3.19 m.daN (25.59 and 23.53 lbf.ft )
(p) Safety the pressure relief valve (7) with the lockwire, corrosion-resistant steel dia 0.8 mm (0.032 in.)
(q) Put the new AIPC 29-11-41-01-190 O-RING (23) in position and install the reducer (24).
(r) TORQUE the reducer (24) to between 1.54 and 1.42 m.daN (11.36 and 10.47 lbf.ft ).
(s) Install the elbow (37) onto the suction port of the reservoir (16).
(t) Make sure that the elbow (37) is aligned correctly for connection of the pipe (35).
(u) TORQUE the elbow (37) to between 10.7 and 9.7 m.daN (78.91 and 71.53 lbf.ft ).
Subtask 29-11-41-420-054-B (1) Remove the parts which are attached to the removed reservoir as follows:
(a) Remove the reducer (24) and discard the O-ring (23).
(b) Remove the pressure gage (3) together with its adapter (4) and discard the O-ring (5).
(c) Remove and discard the lockwire from the pressure relief valve (7).
(d) Remove the pressure relief valve (7) and discard the O-ring (6).
(e) Remove and discard the lockwire from the pressure switch (17).
(f) Remove the pressure switch (17) and discard the O-ring (18).
(g) Remove the adapter (21) and discard the O-ring (22).
(h) Remove the elbow (37) from the suction port on the bottom of the reservoir (16).
(i) Remove and discard the lockwire from the pressure gage (3).
(j) Remove the pressure gage (3) from the adapter (4).
(k) Install a PLUG - BLANKING on all open ports of the reservoir.
(2) Install the removed parts on the replacement reservoir as follows:
(a) Immediately before installation, lubricate all replaced O-rings with Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) .
(b) Remove the blanking plugs from the ports on the top of the reservoir (16).
(c) Put the new AIPC 29-11-41-01-200 O-RING (22) in position and install the adapter (21).
(d) TORQUE the adapter (21) to between 1.19 and 1.08 m.daN (105.31 and 95.58 lbf.in )
. (e) Put the new AIPC 29-11-41-01-200 O-RING (5) in position and install the adapter (4).
(f) TORQUE the adapter (4) to between 1.19 and 1.08 m.daN (105.31 and 95.58 lbf.in )
. (g) Install the pressure gage (3) on the adapter (4).
(h) Make sure that you can read the pressure gage clearly when it is installed.
(i) Hold the adapter (4) with a wrench and TORQUE the pressure gage connector (3) to between 1.71 and 1.52 m.daN (12.61 and 11.21 lbf.ft )
. (j) Safety the pressure gage (3) with the lockwire, corrosion-resistant steel dia 0.8 mm (0.032 in.).
(k) Put the new AIPC 29-11-41-01-200 O-RING (18) in position and install the pressure switch (17).
(l) TORQUE the pressure switch (17) to between 1.71 and 1.52 m.daN (12.61 and 11.21 lbf.ft )
. (m) Safety the pressure switch with the lockwire, corrosion-resistant steel dia 0.8 mm (0.032 in.).
(n) Put the new AIPC 29-14-03-10-020 O-RING (6) or AIPC 29-14-83-12-020 O-RING (6) in position and install the pressure relief valve (7).
(o) TORQUE the pressure relief valve (7) to between 3.47 and 3.19 m.daN (25.59 and 23.53 lbf.ft )
(p) Safety the pressure relief valve (7) with the lockwire, corrosion-resistant steel dia 0.8 mm (0.032 in.)
(q) Put the new AIPC 29-11-41-01-190 O-RING (23) in position and install the reducer (24).
(r) TORQUE the reducer (24) to between 1.54 and 1.42 m.daN (11.36 and 10.47 lbf.ft )
. (s) Install the elbow (37) onto the suction port of the reservoir (16).
(t) Make sure that the elbow (37) is aligned correctly for connection of the pipe (35).
(u) TORQUE the elbow (37) to between 10.7 and 9.7 m.daN (78.91 and 71.53 lbf.ft )
. B. Installation of the Reservoir
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Remove the blanking plugs from the reservoir and the pipes.
(4) Lubricate the threads of all connections with Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) .
(5) Put the reservoir (16) into position in its supports, install the bolts (39) and connect the ends of the straps (38).
(6) Tighten the strap bolts (39).
(7) TORQUE the strap bolts (39) to between 0.275 and 0.225 m.daN (24.34 and 19.91 lbf.in ).
(8) Safety the strap bolts (39) with lockwire, corrosion-resistant steel dia 0.8 mm (0.032 in.).
(9) Make sure that the hydraulic line end-fittings are serviceable.
(10) Connect the suction pipe (45) to the reservoir port.
(11) TORQUE the union nut (44) to between 10.7 and 9.7 m.daN (78.91 and 71.53 lbf.ft ).
(12) Connect the air pipe (19) to the adapter (21).
(13) TORQUE the union nut (20) to between 1.7 and 1.5 m.daN (12.54 and 11.06 lbf.ft ).
(14) Connect the return pipe (43) to the reservoir port.
(15) TORQUE the union nut (42) to between 10.7 and 9.7 m.daN (78.91 and 71.53 lbf.ft ).
(16) Connect the suction pipe (35) to the elbow (37).
(17) TORQUE the union nut (36) to between 10.7 and 9.7 m.daN (78.91 and 71.53 lbf.ft ).
(18) Put the pipe clamp clamp halves (48),(49) in position.
(19) Put a washer (47) on each of the bolts (46).
(20) Install the bolts (46) together with the washers (47) in the pipe clamp assembly.
(21) Install the nuts (50) and tighten them.
(22) Connect the seal drain pipe (9) to the pressure relief valve (7).
(23) TORQUE the union nut (8) to between 8.3 and 7.5 m.daN (61.21 and 55.31 lbf.ft ).
(24) Connect the air bleed pipe (1) to the reducer (24).
(25) TORQUE the union nut (2) to between 1.7 and 1.5 m.daN (12.54 and 11.06 lbf.ft ).
(26) Connect the bonding jumpers (11),(12) to the reservoir (Ref. AMM TASK 20-28-00-912-802).
(27) Install the bolt (10), the washer (13) and the nut (14).
(28) Tighten the nut (14).
(29) Remove the blanking caps from the electrical connectors and the receptacles.
(30) Make sure that all the electrical connections are clean and in the correct condition.
(31) Connect the electrical connectors (40),(41),(15).
Subtask 29-11-41-861-050-A Subtask 29-11-41-865-052-A CAUTION:
USE A SECOND WRENCH TO APPLY COUNTERTORQUE TO THE UNION WHEN YOU DISCONNECT/CONNECT HYDRAULIC LINES ON UNIONS. IF YOU DO NOT USE THE SECOND WRENCH, THERE IS A RISK THAT YOU WILL LOOSEN OR TIGHTEN THE UNION TOO MUCH.
CAUTION:
YOU MUST INSTALL HYDRAULIC TUBES WITH HYDRAULIC FLUID AS LUBRICANT.
(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 reservoir and the pipes.
(4) Lubricate the threads of all connections with Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) .
(5) Put the reservoir (16) into position in its supports, install the bolts (39) and connect the ends of the straps (38).
(6) Tighten the strap bolts (39).
(7) TORQUE the strap bolts (39) to between 0.275 and 0.225 m.daN (24.34 and 19.91 lbf.in )
. (8) Safety the strap bolts (39) with lockwire, corrosion-resistant steel dia 0.8 mm (0.032 in.).
(9) Make sure that the hydraulic line end-fittings are serviceable.
(10) Connect the suction pipe (45) to the reservoir port.
(11) TORQUE the union nut (44) to between 10.7 and 9.7 m.daN (78.91 and 71.53 lbf.ft )
. (12) Connect the air pipe (19) to the adapter (21).
(13) TORQUE the union nut (20) to between 1.7 and 1.5 m.daN (12.54 and 11.06 lbf.ft )
. (14) Connect the return pipe (43) to the reservoir port.
(15) TORQUE the union nut (42) to between 10.7 and 9.7 m.daN (78.91 and 71.53 lbf.ft )
. (16) Connect the suction pipe (35) to the elbow (37).
(17) TORQUE the union nut (36) to between 10.7 and 9.7 m.daN (78.91 and 71.53 lbf.ft )
. (18) Put the pipe clamp clamp halves (48),(49) in position.
(19) Put a washer (47) on each of the bolts (46).
(20) Install the bolts (46) together with the washers (47) in the pipe clamp assembly.
(21) Install the nuts (50) and tighten them.
(22) Connect the seal drain pipe (9) to the pressure relief valve (7).
(23) TORQUE the union nut (8) to between 8.3 and 7.5 m.daN (61.21 and 55.31 lbf.ft )
. (24) Connect the air bleed pipe (1) to the reducer (24).
(25) TORQUE the union nut (2) to between 1.7 and 1.5 m.daN (12.54 and 11.06 lbf.ft )
. (26) Connect the bonding jumpers (11),(12) to the reservoir (Ref. AMM TASK 20-28-00-912-802).
(27) Install the bolt (10), the washer (13) and the nut (14).
(28) Tighten the nut (14).
(29) Remove the blanking caps from the electrical connectors and the receptacles.
(30) Make sure that all the electrical connections are clean and in the correct condition.
(31) Connect the electrical connectors (40),(41),(15).
D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 29-11-41-710-050-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** 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/LOW/LVL/IND | 1832GQ | N32 |
| 121VU | HYDRAULIC/HYD/QTY/IND | 1831GQ | P35 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | HYDRAULIC/G HYD/PUMP ENG1/MONG | 1702GK | R33 |
E. Test of the Reservoir
(1) Do an operational test of the low level warning (Ref. AMM TASK 29-31-00-710-001).
(2) Do an operational test of the low air pressure warning (Ref. AMM TASK 29-34-00-710-001).
(3) Make sure that the level of fluid in the reservoir of the Green hydraulic system is correct. Add fluid as necessary (Ref. AMM TASK 12-12-29-611-001) or (Ref. AMM TASK 12-12-29-611-002).
(5) Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
(Ref. AMM TASK 31-60-00-860-001).
(6) On the ECAM control panel on the center pedestal, push the HYD pushbutton. Make sure that the HYD page on the ECAM lower DU comes on.
(7) Make sure that the two reservoir contents gages (one on the reservoir and one on the ground service panel of the Green system) show the same contents and agree with the ECAM contents indication.
(8) Examine the reservoir and the pipe connections and make sure that there are no leaks.
(9) Apply leak detector Testing Medium-Leak Detection - Oxygen System (Material No.14CCB6) to the reservoir and air pipe connections and make sure that there are no leaks.
5. Close-up(1) Do an operational test of the low level warning (Ref. AMM TASK 29-31-00-710-001).
(2) Do an operational test of the low air pressure warning (Ref. AMM TASK 29-34-00-710-001).
(3) Make sure that the level of fluid in the reservoir of the Green hydraulic system is correct. Add fluid as necessary (Ref. AMM TASK 12-12-29-611-001) or (Ref. AMM TASK 12-12-29-611-002).
NOTE: It is necessary to do the bleeding procedure given in the reservoir filling procedure.
(4) Pressurize the reservoir of the Green hydraulic system (Ref. AMM TASK 29-14-00-614-002). (5) Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
(Ref. AMM TASK 31-60-00-860-001).
(6) On the ECAM control panel on the center pedestal, push the HYD pushbutton. Make sure that the HYD page on the ECAM lower DU comes on.
(7) Make sure that the two reservoir contents gages (one on the reservoir and one on the ground service panel of the Green system) show the same contents and agree with the ECAM contents indication.
(8) Examine the reservoir and the pipe connections and make sure that there are no leaks.
(9) Apply leak detector Testing Medium-Leak Detection - Oxygen System (Material No.14CCB6) to the reservoir and air pipe connections and make sure that there are no leaks.
Subtask 29-11-41-860-051-A
A. Put the aircraft back to the serviceable condition.
(1) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002) .
(2) De-energize the aircraft electrical circuit (Ref. AMM TASK 24-41-00-862-002).
(3) Make sure that the fluid level in the reservoir of the Green hydraulic system is correct. Add fluid as necessary (Ref. AMM TASK 12-12-29-611-001) or (Ref. AMM TASK 12-12-29-611-002).
(4) Connect the isolation coupling of the Power Transfer Unit (PTU) (Ref. AMM TASK 29-23-00-860-002).
(5) Remove the container.
(6) Remove the access platform.
(7) Remove the warning notice from the cockpit and from the ground service panel of the Green hydraulic system.
(8) Make sure that the work area is clean and clear of tools and other items.
(9) Close the main doors of the main gear (Ref. AMM TASK 32-12-00-410-001).
(1) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002) .
(2) De-energize the aircraft electrical circuit (Ref. AMM TASK 24-41-00-862-002).
(3) Make sure that the fluid level in the reservoir of the Green hydraulic system is correct. Add fluid as necessary (Ref. AMM TASK 12-12-29-611-001) or (Ref. AMM TASK 12-12-29-611-002).
(4) Connect the isolation coupling of the Power Transfer Unit (PTU) (Ref. AMM TASK 29-23-00-860-002).
(5) Remove the container.
(6) Remove the access platform.
(7) Remove the warning notice from the cockpit and from the ground service panel of the Green hydraulic system.
(8) Make sure that the work area is clean and clear of tools and other items.
(9) Close the main doors of the main gear (Ref. AMM TASK 32-12-00-410-001).