CES
TASK 29-12-00-810-818
Indication of the Hydraulic Fluid Quantity of the Blue Reservoir shows High or Low Level or fluctuates
1. Possible Causes
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- ACCU-B PWR (2070GM)
- gas leaks
2. Job Set-up Information
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A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
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 29-00-00-870-008 Bleeding Procedure of the Blue Hydraulic System Upstream of the Blue E-Pump AMM 29-00-00-870-009 Bleeding Procedure of the Blue Hydraulic System
Downstream of the Blue E-Pump R AMM 29-10-00-200-002 Check Reservoir Air Pressure on Reservoir Gauge R AMM 29-10-00-200-005 Check Nitrogen Charge Pressure on the Blue Main R System Accumulator by Reading Gauge
AMM 29-10-00-863-003 Pressurize the Blue Hydraulic System with a Ground
Power Supply
AMM 29-10-00-864-003 Depressurize the Blue Hydraulic System
AMM 29-12-42-000-001 Removal of the Blue Power Accumulator
AMM 29-12-42-400-001 Installation of the Blue Power Accumulator
AMM 31-60-00-860-001 EIS Start Procedure
AMM 31-60-00-860-002 EIS Stop Procedure
3. Fault Confirmation
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A. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU HYD/HYD PWR/B WARN/& CTL 2702GJ C12 121VU HYDRAULIC/HYD/QTY/IND 1831GQ P35
「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 ∞∞29-12-00∞∞∞∞∞∞∞∞∞∞Page 255
May 01/04 CES 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, push the HYD pushbutton switch. Make sure that the HYD page is shown on the system display of the ECAM.
(4) Pressurize the Blue hydraulic system with the electric pump (Ref. AMM TASK 29-10-00-863-003).
(5) Look for fault indications on the upper ECAM DU, the lower ECAM DU and panel 40VU.
(6) Depressurize the Blue hydraulic system (Ref. AMM TASK 29-10-00-864-003).
4. Fault Isolation
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A. If the Fault Confirmation gives:
- The content indication shows high fluid level on the lower ECAM DU, or
- The content indication shows low fluid level on the lower ECAM DU, or
- The content indication fluctuates between high and low fluid level on the lower ECAM DU after pressurization of the Blue hydraulic system with the electric pump, or the subsequent warnings come into view:
- The HYD B ELEC PUMP LO PR on the upper ECAM DU,
- The LO flag of the BLUE hydraulic system on the HYD page of the lower ECAM DU,
- The BLUE ELEC PUMP P/BSW FAULT on panel 40VU,
- Do a visual check of the fluid quantity shown on the mechanical indicator (1834GQ) on the ground service panel of the Green hydraulic system.
- Do a visual check of the fluid quantity shown on the fluid content indicator of the Blue reservoir.
- Do a check of the pressure of the Blue system accumulator (2070GM) (Ref. AMM TASK 29-10-00-200-005).
- Do a check of the pressure of the Blue hydraulic reservoir (Ref. AMM TASK 29-10-00-200-002).
「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 ∞∞29-12-00∞∞∞∞∞∞∞∞∞∞Page 256
Feb 01/03 CES
(1) If the three hydraulic fluid quantity indicators show the same quantity, the pressure of the reservoir is correct, but the accumulator pressure is less than the permitted tolerance:
(a) Do a check for external gas leaks on the power accumulator and repair the defective components as necessary (Ref. AMM TASK 29-10-00-200-005).
(b) If you find no external gas leaks, or the fault continues:
1_ Replace the ACCU-B PWR (2070GM) (Ref. AMM TASK 29-12-42-000-
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