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P-20 Blade Holder Problem

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  • P-20 Blade Holder Problem

    I have been using my new P-20 for a week or so , top and bottom feeding, changing blades etc. No problems up until today. Now I cannot get the blade holders to function right. The lever dosen't seem to want to seat and STAY ! With just the slightest adjustment, it is either too tight to flip all the way forward, or , with a slight adjustment in the other direction , it will close, but will pop open as soon as I flip the tension lever up. Any idea what I'm doing wrong ?? I thought I took to the Delta clamps like a duck to water, and can't figure out what I'm doing different today. Any help or suggestions would be appreciated... Larry
    Larry


    Dewalt 788 Owner "I love wood , with or without Mandolin strings"

  • #2
    P-20

    Had same problem here in my case the little bolt that goes though the holder and the nut that is acorn. nthe bolt gets bent so turn it 1/4 turn and order some extra bolts it is 3.5 mm and only delta carries it I also have extra blade holders on hand

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    • #3
      So the littlest part is the culprit?

      So was this bolt visibly bent ? Did you notice an immediate fix when you replaced the bolt ? Maybe if that's the problem , then that means I have been too heavy handed with the holders? I will call Delta this morning, I hate not being able to load a blade and cut something ! Arrrrg ! Thanks for the help....Larry
      Larry


      Dewalt 788 Owner "I love wood , with or without Mandolin strings"

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      • #4
        bolt ?

        if you take the bolt out you can see a slight bow in it or at least i did

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        • #5
          Larry, I had the same problem with mine, both of them.
          I called Delta and they sent me 2 new ones, no trouble since.
          Given them a call.

          Bob
          Delta P-20 & Q-3

          I wondered why the baseball was getting bigger. Then it hit me!

          Comment


          • #6
            snkysnake, I have had my P-20 for over 3 years and no clamp problems, if the bolt in the clamp is bent your are tightening it too much before closing the clamp. You don't need a lot of pressure on the clamp to hold the blade in place. The way I d o it is to adjust the nut on the side just enough so the blade will slip out when I close the clamp and apply the tension. Release the tension and the clamp then turn the adjustment just a tiny bit. The more you use your saw this will just come naturally, you will know just how much to turn the adjustment nut. I learned the hard way, I broke the bolt on a clamp because I was tightening it too much on my old saw. Hope this helps.
            Mick, - Delta P-20

            A smile is a small curve that straightens everything out.

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            • #7
              I have a free video of how to properly use the Delta clamp on my web site. It is in with the other 60 free videos about scrolling.
              http://www.scrollsaws.com
              Rick Hutcheson
              http://www.scrollsaws.com

              Comment


              • #8
                delta clamps

                Well guys, I appreciate all the replies. I talked to Delta this morning, and the little bitty bolts are on back order till at least the 23 rd .BUT , they are sending me two new clamps gratis ! I follow what you are saying, about very small adjustments, and I thought I had the hang of it.The adjustment knobs on my clamps have the sort of splined look to them, like points on a compass around the edge... so to give you an example, I am moving that knob like one or two tics of the compass. Not sure why it went in the toilet yesterday, I've done probably 40 or so top feeding cuts this week, and not a problem one with the holder. Once I got it adjusted for the blade size I never had to touch the knob again. But yesterday the blade holder would not work for anything. I will tinker some more today, and see if I can get it going so I don't have to wait for the new holders.. I'll keep you posted. Thanks again for the help....Larry
                Larry


                Dewalt 788 Owner "I love wood , with or without Mandolin strings"

                Comment


                • #9
                  Thanks Rick

                  Hi Rick, I just watched your video...again. Your video is one of the reasons I went with the Delta, ease of blade changes. I have been doing the changes just like in your video, but of course I only have to adjust the knob if I change blade sizes. The problem that developed yesterday is that when I get done adjusting, the clamp springs back open all by itself. after a week of many sucsessful blade changes, I suddenly can't get it to work. If I tighten the knob just a little too much, the lever won't close..if I back off just a hair...the clamp springs open on it's own. Not sure what to do now except wait for the new clamps. BTW I looked over the clamps real good, even removed the screw, nothing looks bent or broke or worn. Anyway, thanks for making the videos, they are really helpful !... Larry
                  Larry


                  Dewalt 788 Owner "I love wood , with or without Mandolin strings"

                  Comment

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