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  • Bandsaw blade tension

    Hi everyone. Just curious, when you are finished with your bandsaw, do you take the tension off of the blade or not?

  • #2
    Absolutely.
    Every day should be unwrapped like a precious gift.

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    • #3
      No. There's nothing in the owner's manual that suggests it, and it never occured to me to do so. I don't see why you would, but that may simply be ignorance on my part.
      Arthur

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      • #4
        I always take the tension off mine ( 14" General ). I'm pretty sure it was stated in the operating instructions for my saw, and the reason given was that it would cause a depression in the rubber tire over time if allowed to sit in one position too long. I'm not sure how long "too long" is, but once you get into the habit of doing it , it's no big deal.
        Wayne
        If you're looking for me, you'll find me in a pile of wood chips somewhere...

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        • #5
          Yes, and hang a sign on it that states 'Blade and Belt tension is Off'. It takes the pressure off the bearings as well. Done at the end of the day.
          Carve On,
          Kadiddle

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          • #6
            Seem to be good reasons for taking the tension off, I'll mend my errant ways!
            Arthur

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            • #7
              Originally posted by Kadiddle View Post
              Yes, and hang a sign on it that states 'Blade and Belt tension is Off'. It takes the pressure off the bearings as well. Done at the end of the day.
              Carve On,
              Kadiddle
              LOL...Kadiddle,.... you must've been in my shop,...... when finished for the day I have a little sign that says " 6 turns off" that I hang on the front of my saw.
              If you're looking for me, you'll find me in a pile of wood chips somewhere...

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              • #8
                I always do what Wayne says and I'm sure it's mentioned in the Manual. A good habit to do . Merle

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                • #9
                  If you have Timberwolf blades on your saw, they recommend taking off the tension every time you finish. If I remember correctly, it also helps prevent stretching of the blade - likely not a problem with a 3/4 inch blade, but easily one with a 3/16 inch blade.

                  Here's the link: https://timberwolfbandmillblades.com...illCatalog.pdf

                  They say "3. ALWAYS DETENSION YOUR BANDS. When you are done cutting for the day, take the tension off your blade. Band saw blades, when warmed up from cutting, always stretch; and upon cooling shrink by tens of thousandths of an inch each cooling period. Therefore, blades, when left on the saw over tension themselves and leave the memory of the two wheels in the steel of the band, which will cause cracking in the gullet. When you leave the band on your saw under tension, not only do you distort the crown and flatten out the tires (which makes the them very hard), but you also place undue stress on your bearings and shafts. Believe it or not; you can, and will damage your wheel geometry sooner or later and considerably shorten bearing life. You are also crushing your tires or V-belts."

                  Claude
                  Last edited by Claude; 12-30-2018, 05:38 PM.
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                  • #10
                    I do now, but didn't used to. I had part of the metal supporting the upper spindle to break off after quite a few years. I was able to get the parts to replace it, but was afraid that I was going to have to buy a new saw! After tuning it up and replacing the tires, I now loosen it whenever I am through using it. I expect that will make last the rest of my life.
                    'If it wasn't for caffeine, I wouldn't have any personality at all!"

                    http://mikepounders.weebly.com/
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                    • #11
                      This has been a very good thread with practical information, the type of thread that makes our forum so interesting and helpful.

                      Thanks to Theo for initiating it, and all who contributed. I definitely learned valuable tips and will benefit from it.
                      Arthur

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                      • #12
                        Originally posted by Soggy View Post

                        LOL...Kadiddle,.... you must've been in my shop,...... when finished for the day I have a little sign that says " 6 turns off" that I hang on the front of my saw.
                        Thanks Wayne. Now old stupid here is gonna go do that 'cause I never remember how much I undid the thing then have to take the cover off the side to read the little tensioning gauge on the inside of the chassis. This will make things much easier. (Why the heck I never thought of that before befuddles me for sure.)

                        Tinwood.

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                        • #13
                          My saw has one of those tension handles on the back, so I just flipped it over to de - tension it

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                          • #14
                            My saw, a 20+ year old Delta has the tension release lever. I also replaced the tension spring with an aftermarket one as the factory springs on the Delta saws were notoriously weak. With the amount of tension put on a 1/2 inch blade for resawing, leaving the tension on for months could have bad effects on the tires and the bearings. On my old saw without the quick release lever, I was often lazy and let the tension on, but I was using narrow blades without nearly as much tension as required for wider ones.

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