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Thread: BSR - Top thread breaks

  1. #1
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    Help - my top thread keeps breaking while using my BSR. It sews perfectly for about two minutes, then the top thread breaks. I have cleaned it, oiled it, changed the needle, changed the thread, re-threaded. What else can I check? Thanks. - Cynthia

  2. #2
    Moderator Jim's Gem's Avatar
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    It could be your thread. I have had a couple of threads that my machine just did not like. Try a different thread on a practice piece and see how well it works.

  3. #3
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    Is your thread a large spool?--then it should be in a thread holder and not on the machine spool holder. sometimes thread should be vertical and other times horizontal if a smaller spool. If it is old--toss it. HTH





    rita

  4. #4
    Kas
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    Make sure the thread is not being pulled on by anything while it is coming off the spool. That will cause breakage. You might also try a bigger needle.

  5. #5
    Super Member Candace's Avatar
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    I had this happen and it was old thread.

  6. #6
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    I only use Mettler thread because my Bernina does not seem to like others. I finished a spool of thread about half-way through this afternoon and started a new spool, so I don't think it's the thread. I am using the average spool size on the horizontal spool holder. Should I maybe try the vertical? I am using a size 90/14 needle - should I try another size - if so, what size? Thanks for trying to help me. I just can't figure out what I'm doing wrong. - Cynthia

  7. #7
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    needle size sounds right to me. Mount the thread horizontal and see what happens.

    Rita

  8. #8
    Moderator Jim's Gem's Avatar
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    This may not help anything but sometimes when I have been really frustrated with my BSR and the machine in general. I just will turn off the machine and let it sit for a while. Then turn back on and try again. I don't know why but this has worked a time or two, not always.
    Diconnnect your BSR and reconnect it too.
    Take out the bobbin and clean up the area and re-insert it.
    I don't know what else to tell you.

  9. #9
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    I should have said vertical.

  10. #10
    Super Member feline fanatic's Avatar
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    I have a Bernina but not the BSR. When I FMQ with mine and this happens I turned down the top tension a bit (to the half way mark between the next whole number) and that solved my problem with the thread breaking after a minute or two of FMQ.

  11. #11
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    I'll have to try to the tension setting. I've tried everyting else. Thanks for all the help and responses. - Cynthia

  12. #12
    Senior Member katybob's Avatar
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    Give your local Bernina dealer a call. I happened to stop by mine today to pick up some thread and they told me they'd just received a memo from Bernina that they were aware of problems with thread breaking on the 820s and they were going to send a computer update that should help. I thought it was just me, but apparently it's happening a lot.

  13. #13
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    I have A Bernjna 630 I SLIDE my speed control to a slower setting and move my fabric more slowly and like others have said you may need to turn off machine so computer can reset
    re-thread and I would try vertical position sometimes my thread catches on top lip of spool in horizontal position hope one of these post help.Good luck.

  14. #14
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    You know, I do feel like my thread was maybe catching on the spool. I'll have to try moving it to the other holder. I'll ask my Bernina dealer tomorrow. I plan on going there anyway. I have an Artista 640, but I'll still ask. Thanks. - Cynthia

  15. #15
    Senior Member ncsewer's Avatar
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    I used to thread my machine so the spool unwound from the back, I flipped the spool over so it unwinds from the from the front and it works better??? Not sure why but something to try.

  16. #16
    Senior Member gramabiese's Avatar
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    Oh I had that problem just the other day, here I had the spool on with the thread catcher where you start the thread off the spool, on the wrong end and everytime the thread hit it, it broke. check that out too.

  17. #17
    Moderator Jim's Gem's Avatar
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    I have to tell you that my 630 absolutely hates the Metler Varigaeted silk coverd thread. I tried a couple different spools of that thread and it does not work on my machine. Bummer cause it's beautiful thread!!!

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