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Home >> Isuzu >> 1997 >> Trooper LS >> Repair and Diagnosis >> Electrical >> Charging Systems >> Generator & Regulator >> Bench Testing >> Rotor

Bench Testing: Rotor

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  1. Measure diameter of slip rings. If less than .51" (12.8 mm), replace rotor. If slip ring diameter is within specification, go to next step.
  2. Using an ohmmeter, check rotor coil resistance between slip rings. If reading is greater than 2.9 ohms at 68°F (20°C), rotor is defective.
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