- replace the ECU (4000KS), (Ref. AMM TASK 73-21-60-000-001) and (Ref. AMM TASK 73-21-60-400-001).
(b) If the resistance values are out of the specified limits:
- disconnect the harness J8 from the HMU and do a check of the HMU receptacle resistance between: . pins 6 and 7 (26 to 36 Ohms) . pins 6 and 39 (> 10 Megohms) . pin 6 and the ground (> 10 Megohms).
1 If the resistance values are in the specified limits:
_
- replace the harness J8, (Ref. AMM TASK 73-21-50-000-041) and (Ref. AMM TASK 73-21-50-400-041).
2 If the resistance values are out of the specified limits:
_
- replace the Hydromechanical Unit (HMU), (Ref. AMM TASK 73-21-10-000-002) and (Ref. AMM TASK 73-21-10-400-002).
B. Do the test given in Para. 3.A.(1).
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1. Possible Causes
Loss of the RAC Torque Motor Control through the Channel A on Engine 1 _______________
2. Job Set-up Information______________________ Not Applicable
3. Fault Confirmation__________________
4. Fault Isolation_______________
A. Do the test given in Para. 3.A.(1).
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Loss of the RAC Torque Motor Control through the Channel B on Engine 1
1. Possible Causes
_______________
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 73-29-00-710-040 Operational Test of the FADEC on the ground (with Engine Motoring)
3. Fault Confirmation
__________________
A. Test
(1) Do the operational test of the FADEC 1B on the ground (with engine motoring) (Ref. AMM TASK 73-29-00-710-040).
NOTE : If post SB 75-029, fault message must be ignored: no trouble
____
shooting is necessary.
4. Fault Isolation
_______________
A. Do the test given in Para. 3.A.(1).
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Loss of the RAC Torque Motor Control through the Channel A on Engine 2
1. Possible Causes
_______________
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 73-29-00-710-040 Operational Test of the FADEC on the ground (with Engine Motoring)
3. Fault Confirmation
__________________
A. Test
(1) Do the operational test of the FADEC 2A on the ground (with engine motoring) (Ref. AMM TASK 73-29-00-710-040).
NOTE : If post SB 75-029, fault message must be ignored: no trouble
____
shooting is necessary.
4. Fault Isolation
_______________
A. Do the test given in Para. 3.A.(1).
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Loss of the RAC Torque Motor Control through the Channel B on Engine 2
1. Possible Causes
_______________
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 73-29-00-710-040 Operational Test of the FADEC on the ground (with Engine Motoring)
3. Fault Confirmation
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本文链接地址：A320 Trouble Shooting Manual 排故手册 发动机燃油和控制 2(135)
