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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Hello. I own a Singer 4423 Heavy Duty sewing machine. It has been working fine overall, but today it is giving me problems with jamming. At first it jammed underneath the plate and created a huge ball of...

Make sure thread is not laying across the bobbin when you look down into the plastic slider that covers the top loading bobbin case. The bobbin on mine I observed was loose in the case so that as the machine ran, eventually the bobbin thread would jump out of the stitch finger (the silver piece to the far left of the bobbin case, past the tension slots). I solved this problem and so can you! Take the extra felt spool pin felt in your accessories kit that came with the machine, remove bobbin from case and drop this small felt circle into the bobbin case. Replace bobbin. On the 4423, the bobbin thread goes counter-clockwise and drops into the tension discs, and goes all the back until it falls into the space left of the silver stitch finger. Make sure take up level raised all the way up! Then pull the needle thread toward you until bobbin thread comes all the way up. If you start sewing and you actually can SEE the bobbin thread laying across the bobbin, STOP and tethered because that would mean your thread did not slide all the back behind the silver stitch finger--however, I assure you, if you go one step at a time, you did it correctly! You will be smiling in no time! Why? The felt helps to make the bobbin rest in the correct position to keep it from jumping out of the groove. I hope this helps you.

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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...

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