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(1) If the wiring is not correct:
- repair the above defective wiring.
(2) If the wiring is correct:
- disconnect the harness CJ11L and CJ12L from the BSV. Install a jumper wire between the pins 1 and 2 on the harness CJ11L and CJ12L.
- disconnect the connector J11 and J12 from the ECU (4000KS) and do a check of theresistance of the harness J11 and J12 between: . pins 9 and 23 (< 5 Ohms) . pins 9 and 24 (> 10 Megohms) . pin 9 and the ground (> 10 Megohms).
(a) If the resistance values are in the specified limits:
- replace the burner staging valve (BSV) (Ref. AMM TASK 73-11-70-000-002) and (Ref. AMM TASK 73-11-70-400-002).
(b) If the resistance values are out of the specified limits:
- disconnect the harness J11 and J12 from the junction box at the 6 o'clock strut and do a check of the resistance of the harness CJ11L and CJ12L between: for the harness CJ11L . pins 8 and 10 (< 5 Ohms) . pins 8 and 9 (> 10 Megohms) . pin 8 and the ground (> 10 Megohms) for the harness CJ12L . pins 16 and 15 (< 5 Ohms) . pins 16 and 5 (> 10 Megohms) . pin 16 and the ground (> 10 Megohms).
1 If the resistance values are in the specified limits:
_
- replace the harness J11 (Ref. AMM TASK 73-21-50-000-044) and (Ref. AMM TASK 73-21-50-400-044).
- replace the harness J12 (Ref. AMM TASK 73-21-50-000-045) and (Ref. AMM TASK 73-21-50-400-045).
2 If the resistance values are out of the specified limits:
_
- replace the harness CJ11L (Ref. AMM TASK 73-21-50-000-025) and (Ref. AMM TASK 73-21-50-400-025).
- replace the harness CJ12L (Ref. AMM TASK 73-21-50-000-027) and (Ref. AMM TASK 73-21-50-400-027).
(3) If the fault continues:
- replace the ECU (4000KS) (Ref. AMM TASK 73-21-60-000-001) and (Ref. AMM TASK 73-21-60-400-001).
B. Do the test given in Para. 3.A.
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TASK 73-10-00-810-808
Feedback Disagree between the Signals of the Two Channels of the BSV on Engine
1. Possible Causes
_______________
- burner staging valve (BSV)
- harness J11
- harness J12
- harness CJ11L
- harness CJ12L
- ECU (4000KS)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 73-11-70-000-002 Removal of the Burner Staging Valve (BSV)
AMM 73-11-70-400-002 Installation of the Burner Staging Valve (BSV)
AMM 73-21-50-000-025 Removal of the CJ11L Harness
AMM 73-21-50-000-027 Removal of the CJ12L Harness
AMM 73-21-50-000-044 Removal of the HJ11 Harness
AMM 73-21-50-000-045 Removal of the HJ12 Harness
AMM 73-21-50-400-025 Installation of the CJ11L Harness
AMM 73-21-50-400-027 Installation of the CJ12L Harness
AMM 73-21-50-400-044 Installation of the HJ11 Harness
AMM 73-21-50-400-045 Installation of the HJ12 Harness
R AMM 73-21-60-000-001 Removal of the Electronic Control Unit (ECU)(4000KS) AMM 73-21-60-400-001 Installation of the Electronic Control Unit R (ECU)(4000KS) AMM 73-29-00-710-040 Operational Test of the FADEC on the ground (with
Engine Motoring)
ASM 73-25/18
AWM 71-51-08
3. Fault Confirmation
__________________
A. Do the operational test of the FADEC 2A on the ground (with engine motoring) (Ref. AMM TASK 73-29-00-710-040).
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本文鏈接地址：A320 Trouble Shooting Manual 排故手冊 發動機燃油和控制 1(42)
