Quantcast 52.  24 VOLT SYSTEM NOT CHARGING OR UNDER CHARGING (145 AMP) (CONT). - TM-9-2320-364-20-2_860

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Page Title: 52. 24 VOLT SYSTEM NOT CHARGING OR UNDER CHARGING (145 AMP) (CONT).
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VOLTAGE TEST - TM-9-2320-364-20-2_859
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VOLTAGE TEST - TM-9-2320-364-20-2_861
TM 9-2320-364-20-2 2-1636 52.  24 VOLT SYSTEM NOT CHARGING OR UNDER CHARGING (145 AMP) (CONT). 24 vdc voltmeter indicates low   charge. 12 vdc voltmeter indicates   proper charge. Batteries OK. Fuel pump operates indicating   24 vdc present at DUVAC   controller IGN terminal. Windshield wipers operate   indicating wires 1281 and   1277 and magnetic switch   R26 are OK. DUVAC controller OK. Voltage regulator OK. 26-28 vdc measured at terminal   2 of DUVAC controller. Wire 1702 faulty. Wire 1435 faulty. 24 vdc voltmeter faulty. KNOWN INFO POSSIBLE PROBLEMS TEST OPTIONS REASON FOR QUESTION Voltage test. STE/ICE-R #89. If 26-28 vdc are not measured on 24 vdc voltmeter, wire 1702 is faulty. YES NO Repair wire 1702 (see schematic Fig 2-39). Verify repair, go to Step 6 of this Fault. 3. Are at 26-28 vdc measured at wire 1702 at 24 vdc voltmeter? WARNING 24 vdc voltmeter indicates low   charge. 12 vdc voltmeter indicates   proper charge. Batteries OK. Fuel pump operates indicating   24 vdc present at DUVAC   controller IGN terminal. Windshield wipers operate   indicating wires 1281 and   1277 and magnetic switch   R26 are OK. DUVAC controller OK. Voltage regulator OK. 26-28 vdc measured at terminal 2   of DUVAC controller. Wire 1702 OK. Wire 1435 faulty. 24 vdc voltmeter faulty. KNOWN INFO POSSIBLE PROBLEMS TEST OPTIONS REASON FOR QUESTION Continuity test. STE/ICE-R #91. If voltmeter is not grounded through wire 1435, voltmeter will not operate. YES NO Repair wire 1435 (see schematic Fig 2-39). Verify repair, go to Step 6 of this Fault. 4. Is continuity measured between wire 1435 and a known good ground? Replace 24 vdc volt- meter (Para 7-22). Verify repair, go to Step 6 of this Fault. WARNING Read   WARNING on Page 2-1637 Read   WARNING on Page 2-1637

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