Question about Necchi Sewing Machines

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I have a Necchi 4900 and the thread catches on the bobbin holder , moves the bobbin holder out of place , james , have taken it out cleaned everthing under the bobbin and takewn the underneath cover

It will work for a bit sometimes , but then suddenly jams again , have rethreaded multiple times as well , the thread actually catches on the case the bobbin holder sits in and then the bobbin holder jumps and the bobbin holder goes beyond the stopper

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  • Necchi Master
  • 7,365 Answers

Try changing the needle to see if that helps
if it doesn't,, then I suggest that the sewing machine be checked
at a repair shop to see if the bobbin case needs to be replaced and
to see if the hook and the hook race need to be replaced

Posted on Nov 02, 2012

  • 2 more comments 
  • dorothy davis Nov 03, 2012

    thank you for your comments , I have since tightened a tiny screw on the bobbin case , which has tightened the tension on the thread , it is working put better but not perfect , still hear it catching but dosen't jam , i live in Canada wonder if i should just order a bobbin case and the hook and race , do you know where I could order from

  • http://smscanada.com/

  • http://www.sears.ca/content/specialty-se...

  • http://www.manta.com/world/North+America...

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Posted on Jan 02, 2017

  • 729 Answers

SOURCE: won't stitch properly

ever tried adjusting the thread tension control? clean if possible
tighen it more, loose tension adjustment causes loose stitch and tangling of the thread.

Posted on Nov 01, 2008

wentlanv
  • 710 Answers

SOURCE: Janome computerized 4030 (2

Hi,

It sounds like something on the bobbin case may have been knocked out of adjustment. I would take the bobbin case to a repair shop to have it adjusted. First, be sure you've cleaned all bits of thread that may have gotten caught in the area. Blow it out with compressed air if you have it. Then, start with a new needle and be sure you are threading the top correctly. Try it again and if a good cleaning and proper threading doesn't do it, then take the bobbin case in for repair.

Hope this helps. If it does, I'd appreciate your vote. Thanks,

Handie Andie

Posted on Apr 28, 2011

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If the answer is no, then you need to remove the bobbin case, clean out any lint and fluff using your little brush that came with the machine, and you may also have pieces of thread caught in here too. Once clean, place the bobbin case back into the outer surround, under the other piece and lining up the two red marks. This is where photos are so helpful.

Now replace the needle plate and screws, pressure foot, pop in a new needle and thread everything up again.

If the thread continues to catch then you may have managed to damage the bobbin case; as they are plastic if they move out of position the needle can catch and burr or pierce them. If this has happened you could try to smooth out the burring with an emery board or similar. Or you may need to replace it if damaged badly. I've changed mine twice so far because I've pierced it with the needle several times.
I hope that this helps you out, good luck with your machine.tally_girl_3.jpg

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