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Bobbin stitch is too loose on straight stitch Innovis 1250D

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Try re-threading and re-installing the bobbin.

Make sure the thread from the bobbin is feeding in the correct direction and through the guide on the bobbin case.

Make sure the presser foot is up when threading.

Posted on May 16, 2010

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Bottom thread is still loose even if i try to balance the tension, how do i balance the thread tension?


You bobbin tension CAN be adjusted. First, thread your machine with different colors in the top and bobbin, set your top tension at its default, and run a line of straight, and then a line of zigzag stitches, and compare the results at the top and bottom. You will be adjusting your bobbin to your top tension. If the top tension looks like a straight line instead of stitching and the zigzag looks like "chicken tracks" instead of a zigzag, but the bottom looks like a zigzag, your bobbin tension is too loose.

Remove the bobbin case, and locate the straight-slot screw. There are generally two; one is a Phillips and one is straight--you want the straight one. Leave the other alone.

The rule is "lefty-loosy, righty-tighty." If your stitching displays the above symptoms, it needs to be tightened, so turn 1/4 turn to the right--no more--then test again. You will need patience, but don't turn more than that. It is easy to do, but if you don't do it systematically, you can make things worse, and very slight adjustments can alter the stitching significantly.

Apr 15, 2015 | Singer Sewing Machines

1 Answer

Top stich perfict but bottom stich too loose on vivo singer machine 1004


Your bobbin tension needs adjusting, and although it is not hard to do and doesn't require that you take the machine apart, you MUST do it systematically. If you don't, you'll make things worse.

First, download the user's manual from the Singer site if you don't have one. On page 20, you'll see a discussion regarding tensions, and what improper tension looks like. Tension is a balance between the top and bobbin.

Then, using scrap fabric, set your top tension on Auto and make sure your needle is all the way up in the clamp. Run a line of straight stitches, and next to it, run a line of zigzag stitches, maybe four inches, and examine it. The illustration on that page will show you what your straight stitches SHOULD look like. If your zigzag stitches show one side that looks like "chicken tracks" but the other side looks like it should, the chicken tracks side is too tight. In your case, if the bobbin is too loose, the top will look like chicken tracks. It helps a lot to use two different thread colors, as well as a third for the fabric.

To adjust the bobbin tension, you will need a tiny straight blade screwdriver. If you have an indication that the bobbin side stitches are too loose, take the bobbin case out of the machine and locate two screws on the side. One is a Phillips--don't touch it. The one on the left of the Phillips is a straight-slot screw--that's the one you want. The saying is "lefty loosey, righty tighty." If your test indicates the bobbin tension is indeed too loose (which can happen over time), you need to tighten it by turning the screw 1/4 (ONLY) turn to the right (righty-tighty). Test again. You should see at least some improvement to indicate you're on the right track, and repeat--turning ONLY 1/4 turn--until your top and bottom tension are balanced. Don't forget to also test with a zigzag; I have adjusted bobbin tensions in the past that looked OK on the straight stitch, but the zigzag indicated I wasn't quite there yet.

Jun 25, 2014 | Singer 2638 Mechanical Sewing Machine

1 Answer

Bobbin thread wont form a stitch


Hai, Please check the bobbin tension and winding. And cleaning the machine.

Mar 20, 2014 | Brother InnovIs 4000D Computerized Sewing...

1 Answer

When I embroider with my Pfaff Creative 2 the top tension pulls bobbin thread up too much. I changed toe tension on top but it still does the same thing. How can this be fixed?


Suggest you do rethreading ,then test the stitches on straight stitch. If top stitches is loose you have to reduce the upper thread tension, if the bottom stitches is loose you have to increase the upper thread tension. Adjust accordingly till you can get a perfect straight stitch. If okay then you can continue your embroidery work.

Oct 31, 2013 | Sewing Machines

1 Answer

Twin needle tension problem


Hi, Tania
Chances are that you're using a universal point twin needle, designed for sewing on woven fabrics. Twin needles also come with a ballpoint which is what you need for knit fabrics
A ballpoint or stretch needle has a rounded tip that will separate the knit fibers as it penetrates the fabric instead of breaking through them. A universal needle may not catch the bobbin thread on both needles when used on knit fabrics; this is necessary for proper stitch formation.

Nov 06, 2012 | Brother InnovIs 4000D Computerized Sewing...

1 Answer

Bernina activa 210 won't zigzag and has bobbin issues on straight stitch


it's very possible that the machine is slightly out of time & needs to be service at a sewing machine shop
is the fabric & thread & needle compatable with each other?
did you use every thread guide when threading the machine?
is the bobbin in correctly?
is the bobbin warped?

Mar 20, 2012 | Bernina Sewing Machines

1 Answer

I am working on a small quilt. Using the walking foot. When I turned the quilt over to check the stitches on the back I noticed they are very loose. I have never had this problem before. The back stitches...


Check that the thread is tight around the bobbin. Make sure that the bobbin is in the right way around - the bobbin thread should double back on itself coming out of the bobbin holder. The bobbin tension adjustment is the small screw in the plate on the bobbin case that the thread passes under as it comes off the bobbin and goes out.

Mar 24, 2011 | Brother InnovIs QC1000 Electronic Sewing...

1 Answer

Loose tension on bobbin thread


Using a scrap piece of material; try tightening the upper tension a bit at a time until the bobbin thread is smooth. Test stitch after each setting until you get the desired effect...happy stitching Gal.

Apr 11, 2010 | Elna Heirloom Edition 6005

1 Answer

Loose stitching underneath. HOW CAN I FIX!!!!


Sounds as though you may have a burr or rough spot on the hook where the bobbin inserts. Run your finger along the edge of the hook to see if there are any rough spots.I'm sure you're going to find at least one from the time you broke the needle.Once you locate it, remove it with an emery stick or small sharpening stone. Polish it so that it is smooth. Should work okay.
sewman7

Jun 27, 2008 | Juki TL-98Q

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