3 thoughts on “#4 Drive Belt Replacement

  1. Paul Moxon, Moderator - April 26, 2017

    Yes, the span is measured from the center of each pulley.

  2. TheRankFile - April 26, 2017

    Is the ‘span of the belt between the pulleys’ measured from the center of each pulley?
    Thanks Paul!

  3. Paul Moxon, Moderator - April 26, 2017

    First, check that the pulleys are aligned and that the set screws are tightened. The belt should have minimal deflection or give. Too much deflection and the belt may slip, too little deflection causes wear on the bearings of the pulley shafts. There are tension test gauges, but these are unnecessary for your purposes. It will be fine to guestimate 1/64″ deflection per length of span of the belt between the pulleys.

    The main thing is that the belt doesn’t walk or travel side to side while powered on.

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