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Help with my dw100 band saw

Every time I turn the band saw on, the blade comes of the guides, what can I do to make it usable

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  • jd_davies Jan 30, 2009

    The saw sits idle most of the year, but I did use it OK a couple of weeks ago. As far as I can see, there is no problem with the tension, there is not tensioning lever, it's a screw knob on the top. There is also a screw knob on the back that adjusts the angle of the guide wheel and everything looks fine until you flick the switch to start it up then the blade flicks of the bottom drive wheel almost immediately.

  • jd_davies Feb 04, 2009

    I've tried all the help, so far with no success.

    I think I will buy a new one.


  • David Ford
    David Ford May 11, 2010

    I can't find this in Dewalt but, how long has the saw been sitting idle? Can you see any indents in the blade pulley tires and are the axles tight, (no movement in pulleys) Also has the tool been dropped causing misalignment in the housing. And is the blade tensioning lever moving freely and tightening the pulley. Let me know and I will dig deeper



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Pull the plug on the saw, take off the covers on the upper and lower wheels of the saw.

You will see an adjustment bolt above the upper wheel and below the lower wheel, with the band saw in place on both wheels turn the upper wheel by hand, if the band saw moves to either side of the wheel use the adjustment bolts to center the band saw.

Posted on Jan 30, 2009

  • clyde2j2
    clyde2j2 Feb 04, 2009

    The knobs are for tensioning and tracking, there is no "looking OK" to this, the proof is in the running, so try this before you buy a new saw.

    Unplug the saw from the outlet, remove the blade guard from the top wheel, put the blade back on be sure it's very very tght, then turn the wheel by hand very slowly, you should see the blade begining to walk off the wheel, when it does turn the top knob (I always try clockwise first) but it may be counter clockwise.

    You should see the blade begin to "walk" the other way, fuss with this until the blade runs consistantly on the center of the wheel.

    Spin the wheel as fast as you can by hand if the blade stays on then replace the guard, plug in the saw and you should be in business.

    Let me know how this goes.

  • clyde2j2
    clyde2j2 Feb 08, 2009

    Did you get the try at a solution, I sent you?


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I would try and reverse the blade pulley tires and see if that helps. Also try another blade

Posted on Jan 31, 2009


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