Bleeding Procedure of the Blue Hydraulic System Downstream of the Blue E-Pump

TASK 29-00-00-870-009-A
Bleeding Procedure of the Blue Hydraulic System Downstream of the Blue E-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 this procedure after maintenance of the Blue hydraulic system downstream of the Blue E-pump.
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 27-51-00-710-001-A	Operational Test of the Wing Tip Brake and the Pressure Off Brake
TASK 27-64-00-710-001-A	Operational Test of the Spoiler Hydraulic Actuation
TASK 27-80-00-866-004-A	Extending the Slats on the Ground
TASK 27-80-00-866-005-A	Retracting the Slats on the Ground
TASK 27-81-00-710-001-A	Operational Test of the Wing-Tip Brake and the Pressure-Off Brake
TASK 29-00-00-210-001-A	Check for Air in the Green/Blue/Yellow Hydraulic System
TASK 29-00-00-910-002-A	Safety Procedures of the Hydraulic System
TASK 29-10-00-863-003-A	Pressurize the Blue Hydraulic System with a Hydraulic Ground Power-Cart
TASK 29-10-00-863-003-A-01	Pressurize the Blue Hydraulic System with the Blue Electric Pump
TASK 29-10-00-864-003-A	Depressurize the Blue 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 31-60-00-860-001-A	EIS Start Procedure
TASK 31-60-00-860-002-A	EIS Stop Procedure

3. Job Set-up
Subtask 29-00-00-865-074-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 29-00-00-860-073-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 Blue hydraulic system is pressurized. If necessary pressurize it (Ref. AMM TASK 29-14-00-614-002).

4. Procedure
Subtask 29-00-00-870-065-A

A. Bleeding Procedure of the Blue Hydraulic System Downstream of the Blue E-Pump

NOTE: Do the bleeding procedure in the sequence that follows, to make sure that no air stays in the hydraulic system.

(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(2) Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
(Ref. AMM TASK 31-60-00-860-001).
(3) Pressurize the Blue hydraulic system with the Blue E-pump (Ref. AMM TASK 29-10-00-863-003).
(4) Operate the flight controls.

NOTE: When you operate the flight controls, you must monitor the ECAM display and read the level of the reservoir. If the fluid level becomes low, add fluid as necessary (Ref. AMM TASK 12-12-29-611-002) or (Ref. AMM TASK 12-12-29-611-001).

(a) Make sure that the slat flap control lever on the center pedestal is in the 0 position.
(b) Make sure that the speed-brake control lever on the center pedestal is in the RET position.
(c) Make sure that the two side stick controllers are in the neutral position and there is no priority on them.
(d) Extend and retract the spoilers (Ref. AMM TASK 27-64-00-710-001). Do this procedure two times.

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

(e) Move one of the two side stick controllers to the left then to the right, and back to the neutral position to operate the ailerons. Do this procedure two times.
(f) Extend and retract the slats (Ref. AMM TASK 27-80-00-866-004) and (Ref. AMM TASK 27-80-00-866-005). Do this procedure two times.
(g) Operate the flap wing tip brake (Ref. AMM TASK 27-51-00-710-001). Do this procedure two times.

NOTE: You must operate only the flap wing tip brake and ignore the specific test procedure of the system that is shown in the related task.

(h) Operate the slat wing tip brake (Ref. AMM TASK 27-81-00-710-001). Do this procedure two times.

NOTE: You must operate only the slat wing tip brake and ignore the specific test procedure of the system that is shown in the related task.

(5) Operate the CSM/G.

NOTE: When you operate the Constant Speed Motor/Generator (CSM/G), you must monitor the fluid level in the Blue reservoir. Add fluid as necessary (Ref. AMM TASK 12-12-29-611-002) or (Ref. AMM TASK 12-12-29-611-001).

(a) Pressurize the Blue hydraulic system with the Blue E-pump, if necessary (Ref. AMM TASK 29-10-00-863-003).

NOTE: You must do this procedure three times. If you hear unusual noise or vibrations during this time, do the procedure again.

NOTE: You can ignore the warning indications during the operation of the CSM/G.

ACTION	RESULT
1.On the overhead panel 21VU: Open the guard, press and hold P/BSW EMER GEN TEST 23XE.	On the lower ECAM display unit: The ELEC page comes into view automatically The green lines between the AC1 and the AC ESS busbar and the DC1 and the DC ESS busbar go out of view The EMER GEN and ESS TR indications are shown in white. The parameters are shown in green Green lines come on between: EMER GEN and AC ESS EMER GEN and ESS TR ESS TR and DC ESS indications The SHED indication comes into view below the AC ESS and DC ESS busbar indications. NOTE: If the essential TR is not in line: Its related parameters are shown in amber The green line between the ESS TR and the DC ESS busbar is not shown. During the CSM/G test (when the CSM/G is in operation), push the TR RESET P/BSW (15PU) on the panel 103VU to reset the essential TR.
2.On the overhead panel 21VU: Release the P/BSW EMER GEN TEST.	On the overhead panel 21VU: Make sure that the safety guard is back in place.
	On the lower ECAM display unit: The Blue electrical hydraulic pump stops and the generator is disconnected from its network automatically All indications are cancelled The ELEC page goes off.

(6) Operate the flight controls:
(a) Pressurize the Blue hydraulic system with the Blue E-pump, if necessary (Ref. AMM TASK 29-10-00-863-003).
(b) Push the left rudder pedal (on one of the two rudder pedal pairs) then the right rudder pedal forward to operate the rudder. Put the rudder back to the neutral position. Do this procedure two times.
(c) Pull and push the side stick controller to operate the elevators. Put the side stick controller in the neutral position. Do this procedure two times.
(7) Depressurize the Blue hydraulic system (Ref. AMM TASK 29-10-00-864-003).
(8) Wait approximately 5 minutes before you continue, to let the system become stable.
(9) Do a check of the fluid level in the Blue reservoir. Add fluid as necessary (Ref. AMM TASK 12-12-29-611-002) or (Ref. AMM TASK 12-12-29-611-001).
(10) Do the procedure steps (1) thru (9) again, two more times.
(11) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002).
(12) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).
(13) Do the check for Air in the Blue 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.

5. Close-up
Subtask 29-00-00-860-074-A

A. Put the aircraft back to the serviceable condition.
(1) Make sure that the level of hydraulic fluid in the reservoir of the Blue 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) Pressurize the reservoir of the Blue hydraulic system (Ref. AMM TASK 29-14-00-614-002).

[Rev.10 from 2021] 2026.04.01 00:13:19 UTC