- There is an additional ECAM tolerance of +/- 50psi, the system pressure indication on the ECAM is in 50 psi steps.
B. Do the fault confirmation procedure as given in Para. 3. to make sure that operation is correct.
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5. Close-up
________
A. Put the aircraft back to the serviceable condition.
(1) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002).
(2) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).
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CES
TASK 29-11-00-810-810
Green Reservoir Pressure is out of Tolerance
1. Possible Causes
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- PRESSURE REDUCING VALVE
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
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No specific circuit breaker(s) safety clip(s)
No specific warning notices
B. Referenced Information
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REFERENCE DESIGNATION
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AMM 12-32-29-281-001 Hydraulic Fluid Sample of Green,Blue and Yellow Systems for Analysis AMM 29-00-00-864-001 Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action AMM 29-14-00-720-001 Functional Test of the Pressurizing System of the
Hydraulic Reservoirs
AMM 29-14-43-000-001 Removal of the Pressure Reducing Valve
AMM 29-14-43-400-001 Installation of the Pressure Reducing Valve
AMM 32-12-00-010-001 Open the Main Gear Doors for Access
3. Fault Confirmation
__________________
A. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU HYD/HYD PWR/B WARN/& CTL 2702GJ C12 121VU HYDRAULIC/HYD POWER/Y 3803GX N30 123VU B HYD/ELEC PUMP 2701GJ AB09 123VU Y HYD/ELEC/PUMP 3802GX AB06 123VU Y HYD/ELEC/ELEC PUMP/NORM 3801GX AB03
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B. Aircraft Maintenance Configuration
(1) Depressurize the Green, Yellow and Blue hydraulic systems, but not the reservoirs (Ref. AMM TASK 29-00-00-864-001).
(2) Put the warning notices in position to tell persons not to pressurize the hydraulic systems:
- in the flight compartment on the hydraulic section 40VU of the overhead panel,
- on the ground service panels of the Green, Yellow and Blue hydraulic systems.
(3) Open the access doors 196BB and 197FB.
(4) Open the right main door of the main landing gear (Ref. AMM TASK 32-12-00-010-001).
(5) Read the pressure gages (1383GM, 2383GM, 3383GM) on each hydraulic reservoir.
(6) If the reservoir pressure indication is more than 52 +2 -2 psi (3.5852 +0.1378 -0.1378 bar):
(a) Do the functional test of the pressurizing system of the hydraulic reservoirs (Ref. AMM TASK 29-14-00-720-001).
4. Fault Isolation
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A. If the reservoir pressure increases during the test to more than 50 +2 -2 psi (3.4473 +0.1378 -0.1378 bar): 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(28)
