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Generator Load Test

  1. Ensure drive belt is in good condition. Replace belt as necessary. If belt is okay, connect charging system load tester in accordance with manufacturer's instructions. Start and run engine at 2000 RPM and apply load until generator output levels off.
  2. Record maximum generator output current. See GENERATOR OUTPUT SPECIFICATIONS  . With engine running, turn A/C (if equipped) and headlights on, turn blower motor to high speed. Voltage should increase a minimum of .5 volt. If generator output is 10-20 percent of rated amperage, generator output is okay. If generator does not produce rated output, go to NO-LOAD TEST  .
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