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| Illustration 1 | g00872663 |
Field Winding (1) Leads (2) Housing | |
Field Winding Continuity Test
- Remove the field winding from the alternator.
- Connect the multimeter leads across field winding leads (1) .
- Measure the resistance between the field winding leads.
Expected Results:
- 3T-6352 Alternator Gp ... 6.3 to 7.3 ohms
- 5N-5692 Alternator Gp ... 8.5 to 9.5 ohms
- 7G-7889 Alternator Gp ... 1.7 to 2.1 ohms
- 5N-5692 Alternator Gp ... 8.5 to 9.5 ohms
Results:
OK - The resistance is within tolerance. The field winding has passed the Continuity Test. Perform the Field Winding Ground Test.
NOT OK - The resistance is above tolerance. The field winding has an open circuit. Replace the field winding. STOP.
NOT OK - The resistance is below tolerance. The field winding has a short circuit. Replace the field winding. STOP.
- 3T-6352 Alternator Gp ... 6.3 to 7.3 ohms
Field Winding Ground Test
- The field winding remains removed from the alternator.
- Connect the multimeter leads across one field winding lead (1) and housing (2) .
- Measure the resistance.
Expected Result: The resistance is 100000 ohms or more.
Results:
OK - The resistance is 100000 ohms or more. Repeat Steps 1 to 3 for the other field winding lead (1). If the results are OK, the field winding is normal. STOP.
NOT OK - The resistance is less than 100000 ohms. The field winding lead is shorted to the frame. Replace the field winding. STOP.