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Stator Open Test

  1. Connect a 110-volt test lamp or an ohmmeter (x1 scale) with leads touching any 2 stator leads. Make checks between 2 different sets of stator leads.
  2. Readings should be equal. If test lamp does not light or if resistance is high, windings are open. See Figure.
    NOTE: Delta windings on 15SI and 27SI alternators cannot be checked for opens with an ohmmeter.
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