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REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 29-13-33-000-001 Removal of the Priority Valve of the Yellow Hydraulic System (3064GM) AMM 29-13-33-400-001 Installation of the Priority Valve of the Yellow
Hydraulic System (3064GM)
AMM 29-13-45-610-001 Servicing of the HP-Filter (3048GM)
AMM 29-13-51-000-004 Removal of the Yellow Engine Pump (3030GD)
AMM 29-13-51-400-004 Installation of the Yellow Engine Pump (3030GD)
AMM 29-23-41-000-001 Removal of the Green/Yellow Power Transfer Unit
1088GM AMM 29-23-41-400-001 Installation of the Green/Yellow Power Transfer Unit 1088GM AMM 29-23-51-000-001 Removal of the Solenoid Valve 1012GL of the Power Transfer Unit AMM 29-23-51-000-002 Removal of the Solenoid Valve 3012GL of the Power Transfer Unit AMM 29-23-51-400-001 Installation of the Solenoid Valve 1012GL of the Power Transfer Unit AMM 29-23-51-400-002 Installation of the Solenoid Valve 3012GL of the
Power Transfer Unit
AMM 71-00-00-710-003 Engine Automatic Start
AMM 71-00-00-710-028 Engine Shutdown
3. Fault Confirmation
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A. Do this test.
(1) Do a run of both engines (Ref. AMM TASK 71-00-00-710-003).
(2) On panel 40VU, set the HYD PTU P/BSW to the OFF position.
(3) Look on the HYD page of the SD - DU and check the system pressure of the Green and Yellow hydraulic systems.
(4) Look for external leakages of the Green or Yellow hydraulic system.
(5) Shut down the engines (Ref. AMM TASK 71-00-00-710-028).
4. Fault Isolation
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A. If there is an external leakage in the Green or Yellow hydraulic system:
- tighten the related nut or replace the defective component(s).
R (1) If the pressure fluctuates:
R - refer to (Ref. TASK 29-23-00-810-803) and (Ref. TASK 29-23-00-810-R 804)
「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 ∞∞29-23-00∞∞∞∞∞∞∞∞∞∞Page 207
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(2) If during the run of both engines, the difference in the system pressure between the Green and the Yellow hydraulic systems was 200 psi or more:
(a) Do a check of the internal leakage of the Green and Yellow hydraulic system and replace the defective component(s) as necessary (Ref. AMM TASK 29-00-00-280-001) and (Ref. AMM TASK 29-00-00-280-003).
(b) If the internal leakage is in the permitted limits, or the fault continues:
- replace the applicable PUMP-G, ENG 1 (1030GK) (Ref. AMM TASK 29-11-51-000-040) and (Ref. AMM TASK 29-11-51-400-040) or PUMP-Y, ENG 2 (3030GD) (Ref. AMM TASK 29-13-51-000-004) and (Ref. AMM TASK 29-13-51-400-004).
NOTE : You must replace the pump which supplies the lower
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hydraulic pressure.
R **ON A/C 001-049, 051-058, 101-101,
B. If the difference of the system pressure between the Green and Yellow hydraulic systems was during run of both engines less than 200 psi:
(1) Do a check of the clogging indicators of the FILTER-HP, G (1048GM) and FILTER-HP, Y (3048GM).
- If necessary, replace the filter elements (Ref. AMM TASK 29-11-45-610-001) and (Ref. AMM TASK 29-13-45-610-001).
(2) If the fault continues, replace the SOL VALVE-PTU, G (1012GL) or SOL VALVE-PTU, Y (3012GL), (Ref. AMM TASK 29-23-51-000-001) (Ref. AMM TASK 29-23-51-400-001) or (Ref. AMM TASK 29-23-51-000-002) (Ref. AMM TASK 29-23-51-400-002). 中國航空網 www.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：A320 Trouble Shooting Manual 排故手冊 液壓(87)
