(1KS1,1KS2) AMM 73-25-34-710-044 Read the Class 3 Faults AMM 79-33-15-000-041 Removal of the Oil Pressure Transmitter (4003EN) AMM 79-33-15-400-041 Installation of the Oil Pressure Transmitter (4003EN) AMM 79-34-15-000-041 Removal of the Low Oil Pressure Switch (4000EN) AMM 79-34-15-400-041 Installation of the Low Oil Pressure Switch (4000EN) ASM 79-36/01
3. Fault Confirmation
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A. Test
(1) Do the operational test of the Engine Interface Unit (EIU) through the Centralized Fault Display System (CFDS) to read the Class 3 Faults (Ref. AMM TASK 73-25-34-710-044).
4. Fault Isolation
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A. If the test gives the maintenance message OIL PRESS XMTR 2 4003EN OR LOW PRESS 2 SW 4000EN:
- replace the SW-LOW OIL PRESS(4000EN) (Ref. AMM TASK 79-34-15-000-041) and (Ref. AMM TASK 79-34-15-400-041).
(1) If the fault continues:
- replace the XMTR-OIL PRESS (4003EN) (Ref. AMM TASK 79-33-15-000-041) and (Ref. AMM TASK 79-33-15-400-041).
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- do a check of the wiring from the EIU 2 (1KS2) to the low oil pressure switch (4000EN) and the wiring from the EIU 2 (1KS2) to the oil pressure transmitter (4003EN) pins AA/8D, 8B to pins AA/3, 4 (Ref. ASM 79-36/01),
- repair or replace as required.
(3) If the fault continues:
- replace the EIU-2 (1KS2) (Ref. AMM TASK 73-25-34-000-040) and (Ref. AMM TASK 73-25-34-400-040).
B. Do the test given in Para. 3.A.
(1) No additional maintenance action is required if the fault is not confirmed.
(2) Repeat the fault isolation procedure if the fault continues.
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IDG OIL COOLING SYSTEM (REFER TO 24-21-00) - FAULT ISOLATION PROCEDURES
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TASK 79-40-00-810-801
R Engine 1 oil temperature read by the FADEC sensor is higher than 135 deg.C (275 deg.F)
1. Possible Causes
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- IDG
- EIU
- fuel return valve
- IDG oil/fuel heat exchanger
- FADEC oil temperature sensor (not 4004EN)
- ECU (4000KS)
- pressure-holding valve (124QM)
- fuel recirculation check-valve
2. Job Set-up Information
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A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 28-16-41-000-001 Removal of the Pressure-Holding Valve 124QM (125QM) AMM 28-16-41-400-001 Installation of the Pressure-Holding Valve 124QM
(125QM) AMM 28-16-42-000-001 Removal of the Fuel Recirculation Check-valve AMM 28-16-42-400-001 Installation of the Fuel Recirculation Check-valve AMM 71-00-00-710-006 Minimum Idle Check AMM 73-11-50-000-002 Removal of the Fuel Return Valve (FRV) AMM 73-11-50-210-002 Inspection/Check of the Fuel Return Valve AMM 73-11-50-400-002 Installation of the Fuel Return Valve AMM 73-21-60-000-001 Removal of the Electronic Control Unit (ECU) AMM 73-21-60-400-001 Installation of the Electronic Control Unit (ECU) AMM 79-21-10-210-002 Check of the Lubrication Unit Magnetic Plugs and
Screens AMM 79-21-20-000-002 Removal of the Main Oil/Fuel Heat Exchanger AMM 79-21-20-400-002 Installation of the Main Oil/Fuel Heat Exchanger AMM 79-31-40-000-002 Removal of the Oil Temperature Sensor (IDG Cooling
System Control Sensor)
AMM 79-31-40-400-002 Installation of the Oil Temperature Sensor (IDG
Cooling System Control Sensor)
3. Fault Confirmation
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A. Test
(1) Not applicable.
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4. Fault Isolation
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R A. Check the log book/crew report and Post Flight Report (PFR) for IDG
R failure warning or message. This failure is triggered if the engine oil temperature goes beyond 135 deg.C (275 deg.F) possibly caused by too high IDG oil temperature.
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本文鏈接地址：A320 Trouble Shooting Manual 排故手冊 OIL 滑油(29)
