Question about Sewing Machines
First thing is to make sure there is no lint etc caught in the tension unit, even a small amount can reduce tension considerably.
If that doesn't solve the problem, we need you to give more detail of the machine, as there are a couple of different tension units which require different methods, 'over the top' or 'around a knob' ........which of these two is most like your machine ?
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Posted on Feb 19, 2008
SOURCE: bottom tension to tight
There's hardly any way to significantly adjust the bottom, or bobbin tension. There's just a small, flat spring attached to the side of the bobbin case, under which the thread runs. There's adjustment there. You need to adjust the top thread tension via the small thumbscrew that's against the plates on the top thread tension discs. Increase or decrease tension there until top and bottom threads are equally centered between layers of material.
You can adjust presser foot tension with the knurled nut at the top of the machine. I never had the kind of problem you mention though. I set my machine at about 6 stitches per inch or a little more (max is 5, recommended), and presser foot tension is only heavy enough to pull a single layer of material through.
Hope this helps.
Posted on Jul 13, 2009
Yes. Open the bobbin and u will see a screw pressing down a metal sheet, which is actually a spring.
This is meant for adjusting the top tension. Loosen this screw by quarter or half a turn and see if it is giving the desired result. You may have to try a few settings before you arrive at the even top and bottom tensions when your thread tension adjustment scale is midway position.
Please note that you adjust the thread tension on the machine to adjust the bottom tension(not the top) .
Please let me know if this solved the problem.
Posted on Oct 17, 2009
there should be a dial on the front with numbers on it normal tension would be a 3 on the dial for light or medium fabric like cottons or light denim. Also the top of the machine on the left over the needle should have a round post that is spring loaded it affects tension to the feed dog if you push it down the tension will be tight, release it some by the small circular piece around the post and it will loosen
Posted on Dec 13, 2009
The bottom tension is too loose. If your bobbin is in a case there is a little screw on the side that will tighten the plates and increase the tension. Test your thread coming out of the case as you slowly make adjustments to the screw. A slight bit of resistance is what you want. If your sewing still puckers you may have to loosen the tension on the top. Sew on a scrap and go toward the smaller numbers to loosen the top tension until the stitches meet between the two layers of fabric.
Posted on Dec 21, 2009
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