Bleeding Procedure of the Green Hydraulic System Downstream of the Engine Pump

TASK 29-00-00-870-003-A
Bleeding Procedure of the Green Hydraulic System Downstream of the Engine Pump

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.

MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.

WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.

1. Reason for the Job

Do the first procedure after maintenance of the Green hydraulic system downstream of the engine pump.
If no hydraulic ground cart is available, do the second bleeding procedure with an engine run.
Do the second procedure after loss of a large quantity of hydraulic fluid in the Green hydraulic system.

2. Job Set-up Information
A. Referenced Information

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 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 27-64-00-710-001-A	Operational Test of the Spoiler Hydraulic Actuation
TASK 29-00-00-210-001-A	Check for Air in the Green/Blue/Yellow Hydraulic System
TASK 29-00-00-870-001-A	Bleeding Procedure of the Green Hydraulic System Upstream of the Engine Pump
TASK 29-00-00-870-002-A	Bleeding Procedure of the Green Hydraulic System Upstream of the PTU
TASK 29-00-00-910-002-A	Safety Procedures of the Hydraulic System
TASK 29-10-00-863-001-A	Pressurize the Green Hydraulic System with a Hydraulic Ground Power-Cart
TASK 29-10-00-864-001-A	Depressurize the Green 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 71-00-00-710-001-A	Dry Motoring Check
TASK 71-00-00-710-001-B	Dry Motoring Check
TASK 71-00-00-710-003-A	Engine Automatic Start
TASK 71-00-00-710-003-B	Engine Automatic Start
TASK 71-00-00-710-018-A	Discontinued Start, Restart and Shutdown Procedures
TASK 71-00-00-710-028-A	Engine Shutdown
TASK 71-00-00-710-028-B	Engine Shutdown
TASK 71-00-00-710-043-A	Normal Engine Automatic-Start Procedure
TASK 71-00-00-710-045-A	Test No.1 : Dry Motor Leak Check
TASK 71-00-00-720-809-A	Test No. 2 - Engine Motor Leak Test (Dry Method)
TASK 71-00-00-860-814-A	Shutdown of the Engine
TASK 71-00-00-860-823-A	Start the Engine (Normal Automatic Start)
TASK 29-00-00-870-001-A	Bleeding Procedure of the Green Hydraulic System Upstream of the Engine Pump (for corrective action)
TASK 29-00-00-870-002-A	Bleeding Procedure of the Green Hydraulic System Upstream of the PTU (for corrective action)

3. Job Set-up
Subtask 29-00-00-865-064-A

A. Make sure that this(these) circuit breaker(s) is(are) closed:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/ELAC1/NORM/SPLY	15CE1	B11
49VU	FLIGHT CONTROLS/FCDC1/SPLY	20CE1	B10
49VU	FLIGHT CONTROLS/SEC1/NORM/SPLY	21CE1	B08
49VU	AUTO FLT/FAC1/28VDC	5CC1	B04
49VU	AUTO FLT/FAC1/26VAC	14CC1	B03
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/ELAC1/NORM/SPLY	15CE1	B06
49VU	FLIGHT CONTROLS/FCDC1/SPLY	20CE1	B05
49VU	FLIGHT CONTROLS/SEC1/NORM/SPLY	21CE1	B03
49VU	AUTO FLT/FAC1/28VDC	5CC1	H10
49VU	AUTO FLT/FAC1/26VAC	14CC1	H09
** ON A/C ALL
105VU	FLIGHT CONTROLS/ELAC2/STBY SPLY	16CE2	A02
105VU	FLT CTL/ELAC1/STBY SPLY	16CE1	A01
121VU	FLIGHT CONTROLS/FCDC2/SPLY	20CE2	Q20
121VU	FLIGHT CONTROLS/ELAC2/NORM/SPLY	15CE2	R20

Subtask 29-00-00-860-063-A

B. Aircraft Maintenance Configuration

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 replaced component is correctly installed.
(3) Make sure that the hydraulic reservoir of the Green hydraulic system is pressurized. If necessary pressurize it (Ref. AMM TASK 29-14-00-614-002).

4. Procedure
Subtask 29-00-00-870-054-A ** ON A/C NOT FOR ALL

A. Bleeding Procedure of the Green Hydraulic System Downstream of the Engine Pump (after maintenance in this hydraulic section)

NOTE: If no hydraulic ground cart is available, the bleeding procedure is given in the step B.

NOTE: When you operate the hydraulic components, it is necessary to:

look at the ECAM display between the procedures
do a level check of the reservoir
fill it as necessary.

(1) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
(2) Make sure that the slat and flap control lever on the center pedestal is in the 0 position.
(3) Make sure that the speed-brake control lever on the center pedestal is in the RET position.
(4) Make sure that the two side-stick controllers are in the neutral position and that there is no priority on them.
(5) Pressurize the Green hydraulic system with a ground power supply (Ref. AMM TASK 29-10-00-863-001).
(6) Extend and retract the spoilers (Ref. AMM TASK 27-64-00-710-001).

NOTE: Only the operation of the spoilers is necessary. You can ignore the specific test procedure of the system which is given in the related task.

(7) Move one of the two side-stick controllers to the left and then to the right position. Do this a minimum of five times to operate the ailerons.
(8) Pull and push the side-stick controller not less than five times to operate the elevators.
(9) Put the side-stick controller in the neutral position.
(10) Push the left rudder pedal (on one of the two rudder pedal pairs) and then the right rudder pedal fully forward. Do this not less than five times to operate the rudder.
(11) Put the rudder pedals in the neutral position.
(12) Turn the pitch-trim control wheel to the nose-down and then to the nose-up position. This is to operate the trimmable horizontal stabilizer.
(13) Turn the pitch-trim control wheel to the 0 position.
(14) Operate the nose wheel steering not less than five times.
(15) Depressurize the Green hydraulic system (Ref. AMM TASK 29-10-00-864-001).
(16) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).
(17) Do the check for air in the Green hydraulic system (Ref. AMM TASK 29-00-00-210-001):
(a) If the check for air is not in the given limits, do the bleeding procedure again.

NOTE: It is not permitted to do the bleeding procedure more than two times.

(b) If the result is not satisfactory after two bleeding cycles, you must:

do the bleeding procedure of the Green hydraulic system upstream of the engine pump (Ref. AMM TASK 29-00-00-870-001).
do the bleeding procedure of the Green hydraulic system upstream of the PTU (Ref. AMM TASK 29-00-00-870-002).

Subtask 29-00-00-870-054-B ** ON A/C NOT FOR ALL

A. Bleeding Procedure of the Green Hydraulic System Downstream of the Engine Pump

NOTE: If no hydraulic ground cart is available, the bleeding procedure is given in the step B.

NOTE: When you operate the hydraulic components, it is necessary to:

Look at the ECAM display between the procedures
Do a level check of the reservoir
Fill it as necessary.

(1) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
(2) Make sure that the slat and flap control lever on the center pedestal is in the 0 position.
(3) Make sure that the speed-brake control lever on the center pedestal is in the RET position.
(4) Make sure that the two side stick controllers are in the neutral position and that there is no priority on them.
(5) Pressurize the Green hydraulic system with a ground power supply (Ref. AMM TASK 29-10-00-863-001).
(6) Extend and retract the spoilers (Ref. AMM TASK 27-64-00-710-001).

NOTE: You must operate only the spoilers and ignore the specific test procedure of the system which is given in the related task.

(7) Move one of the two side-stick controllers not less than five times to the left and then to the right position to operate the ailerons.
(8) Pull and push the side stick controller not less than five times to operate the elevators.
(9) Put the side stick controller in the neutral position.
(10) Push the left rudder pedal (on one of the two rudder pedal pairs) and then the right rudder pedal fully forward. Do this a minimum of five times to operate the rudder.
(11) Put the rudder pedals in the neutral position.
(12) Turn the pitch-trim control wheel to the nose-down and then to the nose-up position to operate the trimmable horizontal stabilizer.
(13) Turn the pitch-trim control wheel to the 0 position.
(14) Depressurize the Green hydraulic system (Ref. AMM TASK 29-10-00-864-001).
(15) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).
(16) Do the check for air in the Green hydraulic system (Ref. AMM TASK 29-00-00-210-001):
(a) If the check for air is not in the given limits, do the bleeding procedure again.

NOTE: It is not permitted to do the bleeding procedure more than two times.

(b) If the result is not satisfactory after two bleeding cycles, you must:

Do the bleeding procedure of the Green hydraulic system upstream of the PTU (Ref. AMM TASK 29-00-00-870-002)
Do the bleeding procedure of the Green hydraulic system upstream of the engine pump (Ref. AMM TASK 29-00-00-870-001).

Subtask 29-00-00-870-066-A ** ON A/C NOT FOR ALL

B. Bleeding Procedure of the Green Hydraulic System Downstream of the Engine Pump

NOTE: The procedure is necessary after:

removal/installation of large hydraulic components
hydraulic fluid low level in the Green hydraulic system (loss of the hydraulic system)
high loss of hydraulic fluid.

(1) Do the bleeding procedure of the Green hydraulic system upstream of the engine pump (Ref. AMM TASK 29-00-00-870-001).
(2) Do the bleeding procedure of the Green hydraulic system upstream of the PTU (Ref. AMM TASK 29-00-00-870-002).

NOTE: When you operate the hydraulic components, it is necessary to:

look at the ECAM display between the procedures
do a level check of the reservoir
fill the reservoir as necessary.

(3) Make sure that the slat and flap control lever on the center pedestal is in the 0 position.
(4) Make sure that the speed-brake control lever on the center pedestal is in the RET position.
(5) Make sure that the two side-stick controllers are in the neutral position and that there is no priority on them.
(6) Do an automatic start of engine 1 (Ref. AMM TASK 71-00-00-710-003), or do the dry motoring of engine 1 (Ref. AMM TASK 71-00-00-710-001).

NOTE: During the dry motoring, it is necessary to obey the starter limits.

(7) Make sure that the pressure in the Green hydraulic system is 3000 psi (206.8427 bar).
(8) Extend and retract the spoilers (Ref. AMM TASK 27-64-00-710-001).

NOTE: Only the operation of the spoilers is necessary. You can ignore the specific test procedure of the system which is given in the related task.

(9) Move one of the two side-stick controllers to the left and then to the right position.Do this not less than five times to operate the ailerons.
(10) Pull and push the side-stick controller not less than five times to operate the elevators.
(11) Put the side stick controller in the neutral position.
(12) Push the left rudder pedal (on one of the two rudder pedal pairs) and then the right rudder pedal fully forward. Do this not less than five times to operate the rudder.
(13) Put the rudder pedals in the neutral position.
(14) Turn the pitch-trim control wheel to the nose-down and then to the nose-up position to operate the trimmable horizontal stabilizer.
(15) Turn the pitch-trim control wheel to the 0 position.
(16) Operate the nose wheel steering not less than five times.
(17) Stop the engine 1 (Ref. AMM TASK 71-00-00-710-028), or stop the dry motoring of the engine 1 (Ref. AMM TASK 71-00-00-710-001).
(18) Do the check for air in the Green hydraulic system (Ref. AMM TASK 29-00-00-210-001):
(a) If the check for air is not in the given limits, do the bleeding procedure again.

NOTE: It is not permitted to do the bleeding procedure more than two times.

(b) If the result is not satisfactory after two bleeding cycles, you must:

do the bleeding procedure of the Green hydraulic system upstream of the PTU (Ref. AMM TASK 29-00-00-870-002)
do the bleeding procedure of the Green hydraulic system upstream of the engine pump (Ref. AMM TASK 29-00-00-870-001).

Subtask 29-00-00-870-066-B ** ON A/C NOT FOR ALL

B. Bleeding Procedure of the Green Hydraulic System Downstream of the Engine Pump

NOTE: The procedure is necessary after:

removal/installation of large hydraulic components
hydraulic fluid low level in the Green hydraulic system (loss of the hydraulic system)
high loss of hydraulic fluid.

NOTE: When you operate the hydraulic components it is necessary to

look at the ECAM display between the procedures
do a level check of the reservoir
fill the reservoir as necessary.

NOTE: During the dry motoring, it is necessary to obey the starter limits.

(7) Make sure that the pressure in the Green hydraulic system is 3000 psi (206.8427 bar).
(8) Extend and retract the spoilers (Ref. AMM TASK 27-64-00-710-001).

NOTE: Only the operation of the spoilers is necessary. You can ignore the specific test procedure of the system which is given in the related task.

(9) Move one of the two side-stick controllers to the left and then to the right position. Do this not less than five times to operate the ailerons.
(10) Pull and push the side stick controller not less than five times to operate the elevators.
(11) Put the side-stick controller in the neutral position.
(12) Push the left rudder pedal (on one of the two rudder pedal pairs) and then the right rudder pedal fully forward. Do this not less than five times to operate the rudder.
(13) Put the rudder pedals in the neutral position.
(14) Turn the pitch-trim control wheel to the nose-down and then to the nose-up position to operate the trimmable horizontal stabilizer.
(15) Turn the pitch-trim control wheel to the 0 position.
(16) Operate the nose wheel steering not less than five times.
(17) Stop the engine 1 (Ref. AMM TASK 71-00-00-710-028), or stop the dry motoring of the engine 1 (Ref. AMM TASK 71-00-00-710-001).
(18) Do the check for air in the Green hydraulic system (Ref. AMM TASK 29-00-00-210-001):
(a) If the check for air is not in the given limits, do the bleeding procedure again.

NOTE: It is not permitted to do the bleeding procedure more than two times.

(b) If the result is not satisfactory after two bleeding cycles, you must:

do the bleeding procedure of the Green hydraulic system upstream of the PTU (Ref. AMM TASK 29-00-00-870-002)
do the bleeding procedure of the Green hydraulic system upstream of the engine pump (Ref. AMM TASK 29-00-00-870-001).

Subtask 29-00-00-870-066-E ** ON A/C NOT FOR ALL

B. Bleeding Procedure of the Green Hydraulic System Downstream of the Engine Pump

NOTE: The procedure is necessary after:

removal/installation of large hydraulic components
hydraulic fluid low level in the Green hydraulic system (loss of the hydraulic system)
high loss of hydraulic fluid.

NOTE: When you operate the hydraulic components it is necessary to:

look at the ECAM display between the procedures
do a level check of the reservoir
fill the reservoir as necessary.

NOTE: During the dry motoring, it is necessary to obey the starter limits.

(7) Make sure that the pressure in the Green hydraulic system is 3000 psi (206.8427 bar).
(8) Extend and retract the spoilers (Ref. AMM TASK 27-64-00-710-001).

NOTE: Only the operation of the spoilers is necessary. You can ignore the specific test procedure of the system which is given in the related task.

(9) Move one of the two side stick controllers to the left and then to the right position. Do this not less than five times to operate the ailerons.
(10) Pull and push the side stick controller not less than five times to operate the elevators.
(11) Put the side stick controller in the neutral position.
(12) Push the left rudder pedal (on one of the two rudder pedal pairs) and then the right rudder pedal fully forward. Do this not less than five times to operate the rudder.
(13) Put the rudder pedals in the neutral position.
(14) Turn the pitch-trim control wheel to the nose-down and then to the nose-up position. This is to operate the trimmable horizontal stabilizer.
(15) Turn the pitch-trim control wheel to the 0 position.
(16) Stop the engine 1 (Ref. AMM TASK 71-00-00-710-028), or stop the dry motoring of the engine 1 (Ref. AMM TASK 71-00-00-710-001).
(17) Do the check for air in the Green hydraulic system (Ref. AMM TASK 29-00-00-210-001).
(a) If the check for air is not in the given limits, do the bleeding procedure again.

NOTE: It is not permitted to do the bleeding procedure more than two times.

(b) If the result is not satisfactory after two bleeding cycles, you must:

do the bleeding procedure of the Green hydraulic system upstream of the PTU (Ref. AMM TASK 29-00-00-870-002)
do the bleeding procedure of the Green hydraulic system upstream of the engine pump (Ref. AMM TASK 29-00-00-870-001).

Subtask 29-00-00-870-066-F ** ON A/C NOT FOR ALL

B. Bleeding Procedure of the Green Hydraulic System Downstream of the Engine Pump

NOTE: The procedure is necessary after:

removal/installation of large hydraulic components
hydraulic fluid low level in the Green hydraulic system (loss of the hydraulic system)
high loss of hydraulic fluid.

NOTE: When you operate the hydraulic components, it is necessary to:

look at the ECAM display between the procedures
do a level check of the reservoir
fill the reservoir as necessary.

(3) Make sure that the slat and flap control lever on the center pedestal is in the 0 position.
(4) Make sure that the speed-brake control lever on the center pedestal is in the RET position.
(5) Make sure that the two side-stick controllers are in the neutral position and that there is no priority on them.
(6) Do an automatic start of engine 1 (Ref. AMM TASK 71-00-00-710-043), or do the dry motoring of engine 1 (Ref. AMM TASK 71-00-00-710-045).

NOTE: During the dry motoring, it is necessary to obey the starter limits.

(7) Make sure that the pressure in the Green hydraulic system is 3000 psi (206.8427 bar).
(8) Extend and retract the spoilers (Ref. AMM TASK 27-64-00-710-001).

NOTE: Only the operation of the spoilers is necessary. You can ignore the specific test procedure of the system which is given in the related task.

(9) Move one of the two side stick controllers to the left and then to the right position. Do this not less than five times to operate the ailerons.
(10) Pull and push the side stick controller not less than five times to operate the elevators.
(11) Put the side stick controller to the neutral position.
(12) Push the left rudder pedal (on one of the two rudder pedal pairs) and then the right rudder pedal fully forward. Do this not less than five times to operate the rudder.
(13) Put the rudder pedals in the neutral position.
(14) Turn the pitch-trim control wheel to the nose-down and then to the nose-up position. This is to operate the trimmable horizontal stabilizer.
(15) Turn the pitch-trim control wheel to the 0 position.
(16) Stop down the engine 1 (Ref. AMM TASK 71-00-00-710-018), or stop the dry motoring of the engine 1 (Ref. AMM TASK 71-00-00-710-045).
(17) Do the check for air in the Green hydraulic system (Ref. AMM TASK 29-00-00-210-001).
(a) If the check for air is not in the given limits, do the bleeding procedure again.

NOTE: It is not permitted to do the bleeding procedure more than two times.

(b) If the result is not satisfactory after two bleeding cycles, you must:

do the bleeding procedure of the Green hydraulic system upstream of the engine pump (Ref. AMM TASK 29-00-00-870-001).
do the bleeding procedure of the Green hydraulic system upstream of the PTU (Ref. AMM TASK 29-00-00-870-002).

Subtask 29-00-00-870-066-L ** ON A/C NOT FOR ALL

B. Bleeding Procedure of the Green Hydraulic System Downstream of the Engine Pump

NOTE: The procedure is necessary after:

removal/installation of large hydraulic components
hydraulic fluid low level in the Green hydraulic system (loss of the hydraulic system)
high loss of hydraulic fluid.

NOTE: When you operate the hydraulic components, it is necessary to:

look at the ECAM display between the procedures
do a level check of the reservoir
fill the reservoir as necessary.

(3) Make sure that the slat and flap control lever on the center pedestal is in the 0 position.
(4) Make sure that the speed-brake control lever on the center pedestal is in the RET position.
(5) Make sure that the two side-stick controllers are in the neutral position and that there is no priority on them.
(6) Do an automatic start of engine 1 (Ref. AMM TASK 71-00-00-860-823) or do the dry motoring of engine 1 (Ref. AMM TASK 71-00-00-720-809) .

NOTE: During the dry motoring, it is necessary to obey the starter limits.

(7) Make sure that the pressure in the Green hydraulic system is 3000 psi (206.8427 bar).
(8) Extend and retract the spoilers (Ref. AMM TASK 27-64-00-710-001).

NOTE: Only the operation of the spoilers is necessary. You can ignore the specific test procedure of the system which is given in the related task.

(9) Move one of the two side-stick controllers not less than five times to the left and then to the right position to operate the ailerons.
(10) Pull and push the side-stick controller not less than five times to operate the elevators.
(11) Put the side-stick controller in the neutral position.
(12) Push the left rudder pedal (on one of the two rudder pedal pairs) and then the right rudder pedal fully forward. Do this not less than five times to operate the rudder.
(13) Put the rudder pedals in the neutral position.
(14) Turn the pitch-trim control wheel to the nose-down and then to the nose-up position. This is to operate the trimmable horizontal stabilizer.
(15) Turn the pitch-trim control wheel to the 0 position.
(16) Stop the engine 1 (Ref. AMM TASK 71-00-00-860-814) or stop the dry motoring of the engine 1 (Ref. AMM TASK 71-00-00-720-809).
(17) Do the check for air in the Green hydraulic system (Ref. AMM TASK 29-00-00-210-001):
(a) If the check for air is not in the given limits, do the bleeding procedure again.

NOTE: It is not permitted to do the bleeding procedure more than two times.

(b) If the result is not satisfactory after two bleeding cycles, you must:

do the bleeding procedure of the Green hydraulic system upstream of the PTU (Ref. AMM TASK 29-00-00-870-002)
do the bleeding procedure of the Green hydraulic system upstream of the engine pump (Ref. AMM TASK 29-00-00-870-001).

5. Close-up
Subtask 29-00-00-860-076-A

A. Put the aircraft back to the serviceable condition.
(1) Make sure that the level of the hydraulic 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).
(2) Make sure that the air pressure in the reservoir of the Green hydraulic system is not less than 50 psi (3.4474 bar). If necessary pressurize the reservoir (Ref. AMM TASK 29-14-00-614-002).

[Rev.10 from 2021] 2026.04.01 00:13:12 UTC