- replace the PRESSURE TRANSDUCER-HYDRAULIC (3065GN) (Ref. AMM TASK 29-32-11-000-003) and (Ref. AMM TASK 29-32-11-400-003).
B. Do the test given in Para. 3
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TASK 29-13-00-810-810
Yellow System Pressure Indication on ECAM DU out of Tolerance
1. Possible Causes
_______________
- PUMP-Y, ENG 2 (3030GD)
- internal leakage
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 12-12-29-611-001 Fill the Hydraulic Fluid Reservoir with a Hand Pump AMM 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power AMM 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power AMM 29-00-00-280-003 Check of the Internal Leakage of the Yellow Hydraulic System
AMM 29-00-00-280-006 Check of the Green or Yellow Hydraulic System after Operation in a Possible Cavitation Condition of the Engine Pump
R AMM 29-13-51-000-004 Removal of the Yellow Engine Pump (3030GD) R AMM 29-13-51-400-004 Installation of the Yellow Engine Pump (3030GD) AMM 29-14-00-614-002 Pressurization of the Hydraulic Reservoirs through the Ground Connector AMM 29-24-00-863-001 Pressurize the Yellow Hydraulic System with the
Electric Pump
AMM 29-24-00-864-001 Depressurize the Yellow Hydraulic System
AMM 31-60-00-860-001 EIS Start Procedure
AMM 31-60-00-860-002 EIS Stop Procedure
AMM 71-00-00-710-001 Dry Motoring Check
3. Fault Confirmation
__________________
A. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU HYDRAULIC/SOL VALVES/G/Y/B/LEAK/TST 1881GP N35 121VU HYDRAULIC/SOL VALVES/G/Y/PTU 1801GL N34 121VU HYDRAULIC/Y HYD/PUMP ENG2/MONG 3700GD Q37 121VU HYDRAULIC/Y HYD/PUMP ENG2/CTL 3701GD Q36
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B. 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, press the HYD pushbutton switch P/BSW. Make sure that the HYD page is shown on the lower Display Unit (DU) of the ECAM.
(4) Make sure that the ECAM does not show any of these conditions;
- low air pressure in the Yellow reservoir,
- low fluid level in the Yellow 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).
(7) On the overhead panel 40VU, press the PTU/AUTO P/BSW (the OFF light comes on).
(8) On the overhead panel 40VU, make sure that the YELLOW/ENG 2 PUMP P/BSW is set to on. (FAULT and OFF lights are out).
C. Test
WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROL SURFACES
_______
ARE CLEAR BEFORE YOU PRESSURIZE/DEPRESSURIZE A HYDRAULIC
SYSTEM.
WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS ARE
_______ CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE.
(1) Dry-motor the right (No. 2) engine (Ref. AMM TASK 71-00-00-710-001).
(2) Look for the Yellow hydraulic system pressure indication on the lower ECAM DU.
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