Quantcast 50.  12 AND 24 VOLT SYSTEMS NOT CHARGING OR UNDER CHARGING (145 AMP) (CONT) - TM-9-2320-364-20-2_840

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Page Title: 50. 12 AND 24 VOLT SYSTEMS NOT CHARGING OR UNDER CHARGING (145 AMP) (CONT)
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VOLTAGE TEST - TM-9-2320-364-20-2_841
TM 9-2320-364-20-2 2-1616 50.  12 AND 24 VOLT SYSTEMS NOT CHARGING OR UNDER CHARGING (145 AMP) (CONT). Both voltmeters indicate low   charge. Batteries OK. Fuel pump operates indicating   24 vdc present at DUVAC   controller IGN terminal. Alternator belts OK. DUVAC controller OK. Wire 1278 OK. Jumperwire OK. Alternator OK. Wire 1344 OK. Wire 1274 OK. Brown wire between DUVAC   controller and regulator faulty. Wire 1435 between DUVAC   controller and ground faulty. Black wire between regulator   and ground faulty. Red wire between DUVAC   controller and regulator faulty. Orange wire between DUVAC   controller and regulator faulty. Regulator faulty. KNOWN INFO POSSIBLE PROBLEMS TEST OPTIONS REASON FOR QUESTION Voltage test. STE/ICE-R #89. If 22-28 vdc are not measured on brown wire, then regulator is not turned on and alternator will not charge. YES NO Repair brown wire (see schematic Fig 2-39).  Verify repair, go to Step 14 of this Fault. 9. Are 22-28 vdc measured on brown wire at connector MC22? WARNING Read   WARNING on Page 2-1617

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