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Home >> Mercedes Benz >> 1990 >> 560SEC >> Repair and Diagnosis >> Electrical >> Charging Systems >> 1989-90 Electrical - Alternators & Regulators - 190E, 260E, 300CE, 300E, 300SE, 300SEL, 300TE, 420SEL, 560SEC, 560SEL, 560SL >> Component Testing >> Stator

Component Testing: Stator

  1. Place ohmmeter on lowest scale. Connect ohmmeter across stator leads. Resistance between leads should be approximately .14-.15 ohms for 55-amp alternator and .09-.10 ohms for 65 through 90-amp alternators. If resistance is incorrect, stator has open or shorted windings and must be replaced.
  2. Place ohmmeter on X 1000 scale. Connect ohmmeter between stator core and stator lead. No continuity should exist. If continuity exists, stator is grounded and must be replaced.
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