thread bunching up

veroniquegpNovember 10, 2013

I have a singer prelude sewing machine.
When I start sewing my thread keeps bunching up underneath my fabric wich locks up my needle.
If I look at the problem closer, seems that my upper thread is getting stuck around my bobin hook.

Please help, I've tried everything!
I've cleaned/lubricated my hook/bobbin area.
I've played around with my tension
I don't know what to do anymore...

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Could it be the feed dogs? Are they down, perhaps? Watch to see if they move when you sew " on air" for testing.

    Bookmark   November 11, 2013 at 6:54AM
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All kinds of things:

1 - bobbin tension too tight
2 - bobbin inserted backwards
3 - Needle inserted backwards
4 - Upper tension too loose
5 - bobbin thread not completely in the slot
6 - bobbin holder not completely inserted and locked in

    Bookmark   November 12, 2013 at 7:19AM
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check to see if the top thread has come off of the thread take up lever, that will cause the machine to jam up also..
like someone else said, a bobbin inserted backwards will jam up the machine also..

    Bookmark   November 17, 2013 at 3:52PM
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Please bobbin winding properly and change the needle then check the timing.

    Bookmark   November 27, 2013 at 3:33AM
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I hope you solved your problem but thought I would add that I agree with serger... that kind of problem usually means the thread isn't threaded right on the upper part of the machine and it usually is the little eye that moves up and down....

    Bookmark   December 21, 2013 at 5:42PM
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