My sewing machine keeps on bunching up with the bobbin thread. How do I fix this?

Answer 1

Three possibilities:

1) If you're seeing loopies on the underside of the work, the
top tension is not engaged or is set too lightly. Cure is almost
always to rethread the top *WITH THE PRESSER FOOT RAISED*. This opens the tension disks and allows the thread to
enter the tension. Once you get the thread in the tension, you
can finish threading with presser foot down.

Other possibilities include a mis-set top tension ("4" is normal) and a dirty tension or a bit of thread or fluff stuck in the tension disks. Moisten a well-washed bit of muslin with rubbing alcohol or unflavored vodka and use a fold to "floss" between the tension
disks. Rethread.

2) If loops of bobbin thread are appearing on the top of the work, the bobbin tension is off... either the thread has not entered the bobbin tension assembly, it's jammed (really rare) or someone's been messing with the bobbin tension screw. If the last is true, set the top tension to 4 and tighten the screw (turn to the right) about "5 minutes" at a time until the top and bottom tensions are balanced. (Unbalanced tensions are commonly used for decorative work. I've done it and then forgotten to change back to normal tension when I quit for the day.)

3) If you've got a snarl on the underside at the beginning of a seam, but it straightens out later, or just jams you up at the beginning, you're probably not starting your seam correctly. Here's how:

-Raise the presser foot and needle.
-Pull out a few inches of both top and bottom thread.
-Put your work under the needle and use the handwheel to lower the needle into position.
-Lower the presser foot.
-Hold the ends of both the top and bobbin thread behind the presser foot while you take 2-3 stitches.
-Now you can let go of the threads and just sew.

Answer 2

After you have done all the other suggestions that were made here, try this.

When you begin to sew, old the tails of both the bobbin thread and the needle thread so that they do not get drawn into the bobbin area.

Also...change your needle. It should be one appropriate for the fabric you are sewing. Sometimes a new needle solves a lot of problems.

Make sure the bobbin is set in the case in the proper way. My machine has to have the bobbin turn clockwise in the case when you pull the thread out. Check your machine's manual on this one.

Answer 3

If the thread is bunching or looping on the bottom then check the tention guage on your machine it is usually an knob inwhich the thread is put through. If it is just staying in one place check the feed foot, this is the foot under the fabric that moves it forward (also make sure the upper foot is in the down position before sewing).... Some fabrics like satin may need what is called a feed dog foot, this is a special attachment which takes the place of the top foot and helps feed the fabric through the machine....... If this does not help email me with more details...... A great sewing book is the VOGUE sewing book it has EVERYTHING you need to know about sewing it is the only book you will ever need. NOTE: The old and new versions are exactly the same only some of the pictures are updated to more modern ones....

Answer 4

When this happens to me, it is because the bobbin thread has slipped out of the case. Put the bobbin into the metal case so that the thread is tailing off into your left hand. Make sure you get it all the way down into the little slot. Whenever you change a bobbin, swish a dry paintbrush around the inside of the little case and that whole area of the machine before you pop it back into place.
.

Answer 5

Make sure you have the thread properly in the bobbin tension. Then try adjusting the top tension. If that doesn't work it may be out of time and need to be calibrated, you will need to bring it in for service.

Answer 6

Clean the bobbin area. Use a different bobbin, making sure it's wound and inserted properly. Check the bobbin tension.

Check the manual if these don't work.

Answer 7

Your bobbin tension is too tight. Check your owners manual on how to adjust it. If you don't have a manual you can usually download one off the manufacturers web site.

Answer 8

your "tension" setting is prob too loose. when your thread your needle you loop it around a knob before going on toward the needle. that knob setting needs to be tighter. turn it clockwise a tiny amount, test the stitch and tighten more if needed. go slow please. when using different weights of thread sometimes an adjustment is needed. you can see in your stitching when too loose or too tight. if the stitch is loose underneath tension too loose. if the bobbin thread is pulled up and loose at top of fabric, your tension may be too tight. good luck.

Answer 9

rewind the bobbin and then while its out clean up under there it gets lint under it and adjust the tension

Answer 10

Mine was doing that I adjusted the tension on the bobbin
good luck