Question about Euro-Pro Shark 80 - 7133

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Birdsnest and machine jams

I was sewing on some felted sweaters and suddenly my machine stopped working. It is making huge birdsnests around the bobbin mechanism and jamming to the point where I have to cut the whole piece free from the machine. I went through whole spool of thread trying to fix it, just to give you an idea of how much it's winding up underneath. I thought it was a dirty bobbin assembly, so I took the bobbin mechanism apart, cleaned it thouroughly inside and oiled it. Still happened. If I pull the top thread while it's sewing, it will work for a few stitches until it tangles again. It seems like the upper thread tensioner doesn't work anymore, but I can't be sure of that (just a guess). If anyone has any suggestions I'd appreciate it!!

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  • sassyanne Feb 19, 2008

    my euro pro model 1262d, every time i sew there is a birdsnest underneath and the machine jams up and does not sew anymore, it does it all the time.



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I have a singer 457 (from 1964!!) that I inherited from my grandmother. It worked successfully many months, but then I developed a similar problem (birds nests, tangles in the bobbin assembly).

AFter messing with the tension, different spools of thread, and what not, I found that it was the BOBBIN that was the problem. Althought this bobbin is the same size and shape as others, there is something about it that knots up the inside of the machine EVERY time (as in within 15 stitches or less).

I tossed the thing and have been trouble free ever since.

I am now convinced that bobbins (particularily plastic ones) wear out.

Posted on Jan 27, 2009

  • DivaMomCarol Aug 13, 2011

    I am so glad I read this comment. The birdnests were driving me crazy and since we are in China I was very concerned about where I would get my Janome 6600P serviced is I couldn't find an easy at-home solution. The problem was INDEED the bobbin. Bobbins have specific heights and the one I popped into my machine was NOT the proper height. Once I determined that...NO NESTS and NO more tangles. Thank-you!


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Ok, this is real simple. pull the thread from the bobbin up through the bottom of the machine near the needle. also, hold the thread that you threaded through the needle with the other strand on the left of the needle. hold them there for a few stitches... and wahla! no more birds nest.

Posted on Nov 22, 2008

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Try turning the thread spool around sometimes that will make a huge difference.

Posted on Jan 06, 2008

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I have a singer 3321 talent. Where the bobbin sits is catching & clumping, creating a birdsnest on the back. I tried rethreading both the bobbin and the top, checked my needle, adjusted the tension.

If you haven't already, install a brand new needle. Then make sure to RAISE the presser foot before threading the upper thread.

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I have a singer sewing maching model 3 57817c. I am making slipcovers, and have made several cushions already with no trouble at all. Suddenly the machine seizes up, and I can only procede by manually...

Is this machine older and has it been serviced recently? What weight fabric are the slipcovers made from. Domestic sewing machines will struggle with really heavy upholstery fabric, the feed dogs struggle to get two layers through smoothly. You can try to hold the fabric firmly front and back and guide it through but often four or even 6 layers when crossing seams will just be too much. You can try using a "humpjumper", a little plastic bit that you hold under the foot at the back while stiching into a thick seam, it does help.

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The jamming up sounds like tension issues, if you are getting a birdsnest on the bottom then top tension is the problem - check thread is going through the tension discs, turn it back to 5, lower the pressure foot and pull the top thread from just above the needle - it should be firm to pull. Also, if you can access them, turn tension dial to zero and "floss" between disc with the selvage edge of a clean piece of cotton fabric to remove any dye buildup/lint from the discs. You can also dampen the fabric with a bit of denatured alcohol or similar to help clean them.

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