R 3. Fault Confirmation
__________________
R A. Make sure that this(these) circuit breaker(s) is(are) closed:
R -------------------------------------------------------------------------------R PANEL DESIGNATION IDENT. LOCATION
R -------------------------------------------------------------------------------R 121VU HYDRAULIC/SOL VALVES/G/Y/B/LEAK/TST 1881GP N35
R 121VU HYDRAULIC/SOL VALVES/G/Y/PTU 1801GL N34
R 121VU HYDRAULIC/Y HYD/PUMP ENG2/MONG 3700GD Q37
R 121VU HYDRAULIC/Y HYD/PUMP ENG2/CTL 3701GD Q36
R B. Aircraft Maintenance Configuration
R (1) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-R 861-002).
R (2) Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only)
R (Ref. AMM TASK 31-60-00-860-001).
R (3) On the ECAM control panel on the center pedestal, press the HYD
R pushbutton switch P/BSW. Make sure that the HYD page is shown on the
R lower Display Unit (DU) of the ECAM.
R (4) Make sure that the ECAM does not show any of these conditions;
R - low air pressure in the Yellow reservoir,
R - low fluid level in the Yellow reservoir.
R (5) If necessary, pressurize the reservoir (Ref. AMM TASK 29-14-00-614-R 002).
R (6) If necessary, add fluid to the reservoir (Ref. AMM TASK 12-12-29-611-R 001).
R (7) On the overhead panel 40VU, press the PTU/AUTO P/BSW (the OFF light
R comes on).
R (8) Make sure that the PTU does not operate.
R (9) On the overhead panel 40VU, make sure that the YELLOW/ENG 2 PUMP
R P/BSW is set to on. (FAULT and OFF lights are out).
R C. Test
R WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROL SURFACES
_______ R ARE CLEAR BEFORE YOU PRESSURIZE/DEPRESSURIZE A HYDRAULIC R SYSTEM.
R WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS ARE
_______ R CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS R AND/OR DAMAGE.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞29-13-00∞∞∞∞∞∞∞∞∞∞Page 249
Aug 01/03 CESR (1) Dry-motor the right (No. 2) engine (Ref. AMM TASK 71-00-00-710-001).
R (2) Look for the Yellow hydraulic system pressure indication on the lower R ECAM DU. R 4. Fault Isolation
_______________
R A. If the fault confirmation gives:
R - the hydraulic system pressure indication on the lower ECAM DU shows a
R higher value than normal:
R (1) Stop the dry motoring of the right (No.2) engine (Ref. AMM TASK 71-R 00-00-710-001).
R (2) Pressurize the Yellow hydraulic system with a GROUND POWER UNIT -R HYDRAULIC (Ref. AMM TASK 29-10-00-863-002).
R (3) Look for the hydraulic system pressure indication on the lower ECAM
R DU.
R (4) Depressurize the Yellow hydraulic system (Ref. AMM TASK 29-10-00-864-R 002).
R (a) If the system pressure is in the normal range:
R - Replace the FILTER-ENG 2 PUMP CASE DRAIN, Y (3084GM) (Ref. AMM
R TASK 29-13-43-610-041).
R 1_ If the fault continues:
R a_ Replace the PUMP-Y, ENG 2 (3030GD) (Ref. AMM TASK 29-13-51-R 000-004) and (Ref. AMM TASK 29-13-51-400-004).
R (b) If the hydraulic system pressure is to high:
R - Replace the PRESS XDCR-Y (3065GN) (Ref. AMM TASK 29-32-11-000-R 003) and (Ref. AMM TASK 29-32-11-400-003).
R 1_ If the fault continues:
R a_ Replace the FILTER-HP, Y (3048GM) (Ref. AMM TASK 29-13-45-R 610-001).
R 2_ If the fault continues:
R a_ Replace the SDAC-1 (1WV1) or SDAC-2 (1WV2) (Ref. AMM TASK
R 31-55-34-000-001) and (Ref. AMM TASK 31-55-34-400-001).
R B. Do the fault confirmation procedure as given in Para. 3. to make sure
R that the operation is correct.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞29-13-00∞∞∞∞∞∞∞∞∞∞Page 250
Aug 01/03 CES
R 5. Close-up________
R A. Put the aircraft back to the serviceable condition.
R (1) Do the EIS stop procedure
R (Ref. AMM TASK 31-60-00-860-002).
R (2) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-
R 862-002).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞29-13-00∞∞∞∞∞∞∞∞∞∞Page 251
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：A320 Trouble Shooting Manual 排故手册 液压(77)
