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  • Dewalt wild vibration

    Hi folks,

    I have been using my Dewalt saw for about a year, and it has suddenly developed a habit of spontaneously vibrating wildly. I turn it off and restart and it will be fine for a while, and then do it again. I do a lot of start and stop cutting on tight curves, and use a foot switch. Thought it was the foot switch, but tried it without and it still does it. When it happens, the whole machine shakes. I've removed the switch and blown the dust out. Any other suggestions?

    Thanks,
    T C

  • #2
    T C, sounds like something has come loose. I would check all nuts and bolts. Check where you have it fastened down to a bench or stand. Go to Rick's Scrollsaw
    There is a lot of information there on Dewalt saws. Rick's email address is there also, you could check with him.
    Good luck with it.
    Mick, - Delta P-20

    A smile is a small curve that straightens everything out.

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    • #3
      I find I'll get some vibration when the blade starts to slip loosing tension . You may want to clean the thumb screw ends.
      Roger

      Comment


      • #4
        Thanks for the responses. I pulled the machine apart and checked all bolts. A few were a little loose. Tightened everything up, put it back together and it still does it. I have it sitting on a rubber mat and bolted to the table. I'm thinking it might be in the motor, since it happens with the foot switch and without. It will often happen when I stop the saw then immediately start it. This is not just a normal vibration. It's as if the machine goes into super high speed. The tension knob comes loose, and the blade either comes undone or it breaks. The worst part is that the workpiece gets damaged.

        Any other thoughts?

        TC

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        • #5
          At this point I think I would contact the MFG direct the question to there tech support . just my 2cents
          Someone say tool or lumber sale I am out of here

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          • #6
            Originally posted by flyfisherman_53 View Post
            At this point I think I would contact the MFG direct the question to there tech support . just my 2cents
            yes, do it quickly before your warranty runs out like mine did.
            Hegner Polymax- 3,Hegner Multimax-3,
            "No PHD, just a DD 214"

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            • #7
              I can't believe with so many negative reviews and known problems that people still buy this saw. To those of you who wrote to Dewalt about all the problems this saw has, did you ever hear back from them? It would be nice to maybe get my dewalt up and running someday as a back up. It just sits in my garage now, collecting dust and getting rust.

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              • #8
                TC, it sounds like the transfer of motor power to the saw arms. Would have to have Mfg. take care of it though. Good Luck.
                PERK

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                • #9
                  Tc, the foot switch shouldn't have anything to do with it. You say it starts to run very fast. That sounds like a circuit board problem, as the others said, take it back to Dewalt.
                  Mick, - Delta P-20

                  A smile is a small curve that straightens everything out.

                  Comment


                  • #10
                    Surging speed is nearly always caused by a defective VS circuit board.

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                    • #11
                      Thank you to all who have replied.

                      At this point, I believe that the problem is with the motor or the circuit board. I bought the saw used, so there is no warranty. I will keep you posted to any further developments.

                      TC

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