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brush timing

  1. ADC FB1-4001, Question about arcing/brushes

    Electric Motors
    Hello All, I was wondering if someone could give me some pointers on my ADC 9". I'm using it in a garden tractor for pulling. I am not pushing a ton of amperage yet (550 mid track about 650 peak right at spin out), but on my first several passes it seemed to be arcing, possibly excessively...