Pressurize the Blue Hydraulic System with a Hydraulic Ground Power-Cart

TASK 29-10-00-863-003-A
Pressurize the Blue Hydraulic System with a Hydraulic Ground Power-Cart

WARNING: OBEY THE HYDRAULIC SAFETY PROCEDURES.

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.

WARNING: PRESSURIZE ONLY THE HYDRAULIC SYSTEM(S) THAT IS (ARE) NECESSARY FOR THE TASK. ISOLATE THE OTHER HYDRAULIC SYSTEM(S) BEFORE YOU SUPPLY HYDRAULIC POWER TO THE AIRCRAFT.

ZONE: 190

1. Reason for the Job
This procedure describes the pressurization of the Blue hydraulic system with a ground power supply.
You can also pressurize the Blue hydraulic system with the Blue electric pump as given in the next Task (Ref. 29-10-00-863-003-01).
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
ALT29000001	1	HYD GRND PWR UNIT3000

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
190	BELLY FAIR, AIR CONDITIONING & HYD COMPT
197EB

C. 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 29-14-00-614-001-A	Depressurization of the Hydraulic Reservoirs
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
Ground Connectors on Blue Service Panel

3. Job Set-up
Subtask 29-10-00-010-052-A

A. Open the access door 197EB.

Subtask 29-10-00-865-068-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
49VU	HYD/HYD PWR/B WARN/& CTL	2702GJ	C12

Subtask 29-10-00-860-081-A

C. Aircraft Maintenance Configuration
(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) On the ECAM control panel on the center pedestal, push the HYD pushbutton switch (P/BSW). Make sure that the lower (system) display shows the HYD page.
(4) Make sure that the ECAM does not show these warnings:

Low air pressure in the Blue reservoir
Low fluid level in the Blue reservoir.

(5) If necessary, pressurize the reservoir (Ref. AMM TASK 29-14-00-614-002).
(6) If necessary, add fluid to the reservoir (Ref. AMM TASK 12-12-29-611-001) or (Ref. AMM TASK 12-12-29-611-002).
(7) Depressurize the reservoir of the Blue hydraulic system (Ref. AMM TASK 29-14-00-614-001).
(8) Connect the suction and delivery lines of the hydraulic ground power-supply to the aircraft ground connectors:

Ground Connectors on Blue Service Panel

2006GM suction
2008GM delivery.

(9) Pressurize the reservoir of the Blue hydraulic system (Ref. AMM TASK 29-14-00-614-002).

4. Procedure
Subtask 29-10-00-863-052-A

A. Pressurization of the Blue Hydraulic System with the Ground Power Cart-Hydraulic
(1) Pressurize the Blue hydraulic system:
(a) Make sure, that delivery pressure on the ALT29000001 HYD GRND PWR UNIT3000 is set to 0 psi (0 bar).
(b) Start the ALT29000001 HYD GRND PWR UNIT3000.
(c) In not less than 30 seconds, increase the pressure for the Blue hydraulic system to 3000 psi (206.84 bar).
(2) Refer to the ECAM indication of the BLUE system pressure and make sure it shows 3000 psi.

5. Close-up
Subtask 29-10-00-860-082-A

A. Put the aircraft back to the serviceable condition.
(1) Stop the hydraulic ground power-supply.
(2) Refer to the ECAM indication of the BLUE system pressure and make sure that it shows 0 psi.
(3) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002).
(4) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).
(5) Disconnect the suction and delivery lines from the aircraft connectors.
(6) Make sure that the fluid level 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).
(7) If necessary, pressurize the reservoir of the Blue hydraulic system (Ref. AMM TASK 29-14-00-614-002).

Subtask 29-10-00-410-052-A

B. Close the access door 197EB.

[Rev.10 from 2021] 2026.04.01 00:13:44 UTC