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  • 401a bobbin chatter and tension issues

  • 401a bobbin chatter and tension issues

    Old 03-10-2018, 10:01 AM
      #11  
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    The metal 66 bobbins you buy today are all from china and are of poor quality. If you buy 20 you will have to
    throw 5 away. Their dimensions are not consistent. Some will be too tight in the bobbin case. You need to test
    each one first in the bobbin case to see they spin free and throw any tight ones away. The plastic bobbins seem
    to work much better than these new metal ones.

    Also you can get a burr on the needle plate where the thread passes through and this will cause you fits. If the
    needles have hit the plate by the hole their will be rough spots that the thread will catch on. Your machine should
    have come with a straight stitch plate also. Put that plate on with the straight stitch foot and see if it sews better
    and quieter. If so order a new zigzag plate. You can get new ones.
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    Old 03-13-2018, 04:42 PM
      #12  
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    If the bobbin case is worn, maybe putting one of those teflon bobbin washers will help. I think its a Sharon Schamburg thing. I saw them on Amazon. That would lift it up a smidge, but it would still be slippery so it spins freely.
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    Old 03-15-2018, 09:51 AM
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    Welcome to the board katierose. Happy you go it figured out.
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    Old 03-15-2018, 12:50 PM
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    Originally Posted by bkay
    Patrice, the 401 (403, 501 and 503) have drop in bobbins, so the bobbin case is seldom removed or adjusted.

    bkay
    Okay. How do you adjust the tension? The OP said she had adjusted the tension on the bobbin.
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    Old 03-15-2018, 01:28 PM
      #15  
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    My point was that you wouldn't have several bobbin cases. You seldom, if ever, take it out, like you would on a 15-91. So you never loose it or drop it or whatever.

    But, since you asked, I looked it up. Now I know. Thanks.

    bkay

    [ATTACH=CONFIG]590903[/ATTACH]
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