loti
 
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Date: 9/10/12 1:40 PM I love this machine and used it exclusively for buttonholes, but decided to sew a shirt together and I've been having a lot of problems with the tension. It will sew for 20" then the bobbin thread tightens, it won't advance, and then the fabric gets stuck. When I pull the garment out, I have to break the thread, the last time I noticed that the bobbin thread was tight. I rethreaded it and it will start again, sometimes it will sew 20", sometimes 2" before it happens again.
I still have the hem to go on the shirt, but would like to have this sorted before using it again.
TIA ------
"A girl should be two things: classy and fabulous.”
Coco Chanel
Stash Sewn in 2011 148.5 Yds
Stash Sewn in 2012.... counting...
http://adonising.blogspot.com |
Ms. McCall
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CA
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Date: 9/10/12 2:56 PM Sorry if this it obvious and you've done it already, but have you made sure that the bobbin area and feed dogs etc are cleaned out and there's no fluff or thread down there? Do you need to adjust the bobbin tension, or is it seizing up after you adjust it? Has the machine been oiled recently? ------
BrownPaperPattern.blogspot.com |
loti
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In reply to Ms. McCall <<
Date: 9/10/12 3:05 PM No problem, all of that has been done, honestly the machine has been tempermental from the start but it doesn't seem to get stuck when doing buttonholes or the embroidery stitches.... or I should say gets stuck rarely when I do either. ------
"A girl should be two things: classy and fabulous.”
Coco Chanel
Stash Sewn in 2011 148.5 Yds
Stash Sewn in 2012.... counting...
http://adonising.blogspot.com |
beauturbo
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Date: 9/10/12 3:30 PM Your thread is catching and fouling up on something. What, I don't know. But don't use those bobbins and try a new bobbin in it instead. Maybe your thread is catching on your bobbin. If they are old plastic bobbins, just toss them and get some new ones. Roll them sideways empty on a table top to make sure they roll even, and not wobbly. If wobbly, and even if brand new, they are out of round, and just throw them away.
Also feel all the edges of any bobbin for any rough spots that could catch thread. Even a metal bobbin if using one of those, might be dinged up scratched, or out of round if someone stepped on it once. You could use plastic or metal 66 bobbin there. Any 66 bobbin that works, is better than one that does not. If it's not your bobbin then it's something else, maybe thread catching on rough spots on your stitch plate hole, your hook, the actual bobbin case, or maybe the little thread gate there at about 4-5 O'clock that the thread needs to pass through each time to even throw the thread over the bobbin case.
I would start with the bobbin though, as it's easier and quicker to just to toss a bobbin in the trash and use a different one, than check or fix any of those other things. |
PattiAnnJ
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OH USA
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Date: 9/10/12 3:51 PM I had a problem with finding smooth top/bottom bobbins. The ones with the ring around the opening for the winding pin snagged the thread and made a big mess. |
mssewcrazy
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MS USA
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Date: 9/10/12 8:28 PM A service if all the usual remedies and rechecks don't resolve the issue. A couple of times I have spent hours trying to get to the bottom of the problem and maybe needed something done that wasn't something I could take care of. I figure if they have been around 50 years or so they may need a spa day for balanced tensions and timing checks,camstack cleaning, motor check inside and lub in the gears and motor grease cups. Some people can do all that stuff but other than what is in the manual for routine maintenance is out of my reach. Dealer once had to replace a bobbin case on my older bernina that was causing tension issues. Good luck ,it is annoying until you can find what is the trouble and I've had things happen on the new machines that are just as bothersome until I found what was going on. |
GothDom
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OR
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Date: 9/11/12 5:10 PM are you using metal bobbins?
------
http://www.acdc-vintage.com
This one, that one, and a bunch of other ones!
(though the herd is getting more streamlined)
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ThePadre
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PA USA
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Date: 9/11/12 11:33 PM Do you have a spool felt under the spool? Is there any chance the thread off the spool is getting wrapped around a spool pin or anything else? The felt will help prevent that by putting just a bit of friction under the spool. |
loti
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FL USA
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Date: 9/13/12 0:06 AM Yes to metal bobbins.
Yes to felt.
It is very tempermental, I'm going to investigate the spool further, I think you might be onto something FrBasil. It might be getting caught on something because I've noticed lately it jumps. When the stitching grinds to a halt, I pick up the presser foot and pull back, and both threads are still intact. Maybe it's getting caught in the tension discs?
It might just be haunted :) ------
"A girl should be two things: classy and fabulous.”
Coco Chanel
Stash Sewn in 2011 148.5 Yds
Stash Sewn in 2012.... counting...
http://adonising.blogspot.com |
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