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Topic: Why does this keep happening to my serger?  (Read 1316 times)
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tightsandtea
« on: July 30, 2012 06:35:06 PM »

Every single time I use my serger, I get sporadic bunches of loose threads like this:



BUT, for whatever reason, it usually evens out towards the end. I hemmed about 2 yards of fabric for a skirt with a rolled 3-stitch hem, and even though I hadn't changed any of the settings or increased/decreased the speed, the last yard or so looked like this:



I have no idea what's causing this, since it happens sporadically, but it looks unprofessional and home-y. Any ideas?
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Jinjeet Phoenix
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« Reply #1 on: July 31, 2012 01:36:42 AM »

Have you checked the tension on the threads? If the thread is properly threaded? Sometimes when a thread is too loose that can happen. Or not in the right place or threaded in the right direction. Hoping that your grifers (Those things that make the "lock" on the threads. Don't know what they're called in English) haven't moved. That could be an issue. Hope this helps and that you can resolve your problem without taking it to get fixed.
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FabricFun
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« Reply #2 on: August 03, 2012 08:08:04 PM »

Do you thread the machine with the presser foot up so the threads sit in the tension disks correctly? Did you try a new needle?
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tightsandtea
« Reply #3 on: August 04, 2012 03:41:09 PM »

If I make the thread tension tighter, it usually just snaps the the thread--when I make it looser, it's too loose. I usually thread with the tension foot up anyway, but I didn't know it affected the tension disks--I'll keep that in mind, thanks!

I'm just really annoyed because like I said, it seems to happen sporadically without any adjustments. Could thread quality affect it? I buy small spools for $.50, but if higher quality thread really makes a difference I'd definitely upgrade.

- -
Just another random question: is there any way to steady the foot control or make it less sensitive? Even if I keep my foot in the same place, it gets slower--but when I press lightly it goes too fast.
« Last Edit: August 04, 2012 03:43:52 PM by tightsandtea - Reason: added a question » THIS ROCKS   Logged
FabricFun
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« Reply #4 on: August 04, 2012 05:17:38 PM »

Better quality thread is always better for your machine over time. I know cheap thread will cause problems with the stitches on a regular machine more than a serger. A serger should run well with all types of thread if the tension settings are correct.

If you've tried another spool of thread, made sure it's correctly threaded through all the thread guides, changed the needle, cleaned any build up of lint from the feed dog area and it still acts up you may need to get it adjusted. The timing could be off and need adjusting.
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Sewing Joe
« Reply #5 on: January 05, 2013 06:18:49 AM »

Do you notice it more with black thread? There's something about the dyeing process for black thread that makes it notorious for causing tension issues.  If the thread is irregular (thick, then thin, then back), it's not going to keep a consistent tension.

I never test my tension with black thread because of this.
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amazing_784
« Reply #6 on: January 20, 2013 03:14:08 PM »

Maybe a dumb question here, but are you using serger thread and not just regular sewing thread?  If you are using sewing thread on your serger, that might cause a problem.  Otherwise, just disregard. Smiley
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