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Load Test

  1. Connector tachometer to engine. Start engine. Load alternator by switching heater/air conditioner blower motor to high position and headlights to high beam. Increase engine speed to 2000 RPM.
  2. Voltmeter should indicate at least 0.5 volt higher than base voltage. If voltage increase is within specification, alternator operation is normal. If voltage increase is less than 0.5 volt higher than base voltage, proceed to LOW VOLTAGE TEST.
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