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INTER AV TROUBLE SHOOTING CHART
|
Condition or Fault |
1 AlternatorRegulator Terminal |
2 Volt. Regulator Regulator Terminal |
3 Volt. Regulator Field Terminal |
4 AlternatorField
Terminal |
Normal |
1.0 +/- 0.2 |
1.0 +/- 0.2 |
1.0 +/- 0.4 |
1.0 +/- 0.4 |
Field Circuit Open
1 Broken
Wire 2 Open Field
Switch 3 Open
O.V.R. |
7.5 7.5 7.5 |
7.5 7.5 7.5 |
7.5 7.5 7.5 |
0 0 0 |
|
4 Open
Brush 5 Faulty
Rotor |
7.5 7.5 |
7.5 7.5 |
7.5 7.5 |
7.5 7.5 |
Faulty Regulator
1 Regulator
Open 2 Regulator
Shorted |
9.00 / 11.5 0.8 |
9.00 / 11.5 0.8 |
0 0.6 |
0 0.6 |
Reg. Wire Open |
12.5 |
0 |
0 |
0 |
Resistor Open |
0 - 0.4 |
0 - 0.4 |
0 |
0 |
Grounded |
0 |
0 |
0 |
0 |
external diode plate, field circuit, regulator wire | ||||
1 Engine Not
Running
2 Master Switch “ON”
3 Field Switch “ON”
4 Confirm Alt. Output Terminal
has 12.5 Volts
5 Take voltage readings at points
1 Thru 4 to diagnose fault
Suggestions:
Be sure Alternator Output
Plate (external diode plate) is not touching ground.
Be sure Alternator is Grounded with adequate
size wire.
Back to Alternators Wiring Diagram T/S Suggestions Home