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No-Load Test

  1. Connect tachometer to engine. Start and operate engine at 1500 RPM with no electrical load (foot off brake and doors closed).
  2. Measure voltage when voltage stabilizes. This may require waiting a few minutes. Voltage should increase, but not more than 3 volts greater than base voltage. See BASE VOLTAGE TEST .
  3. If the voltage increases at least 0.5 volt over base voltage, go to LOAD TEST. If voltage increase is more than 2.5 volts, proceed to HIGH VOLTAGE TEST. If there is no voltage increase, or voltage increase is less than 0.5 volt, go to LOW VOLTAGE TEST.