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No-Load Test

  1. Attach tachometer to engine. Start engine and operate at 1500 RPM with no electrical load (foot off brake and doors closed).
  2. Voltmeter reading should be taken when needle stops moving. This may require a few minutes. Voltmeter reading should increase 2.5 volts more than battery voltage.
  3. If voltage increases properly, proceed to LOAD TEST. If voltage increases more than 2.5 volts, proceed to HIGH VOLTAGE TEST. If there is no voltage increase, proceed to LOW VOLTAGE TEST.
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