Thread getting caught around bobbin case

make sure the bobbin is counter clockwise

make sure top thread has not come off thread take up lever

could also be a timing problem

if you are getting loops on the underside of the fabric or jamming around the bobbin, then your top thread is not under tension or going through the thread take up lever, that little arm that moves up and down. Recheck your threading path making sure you always raise the presser foot to open up the tension discs so that the thread lies into the tension discs fully. Also check that you have the bobbin threaded up correctly into the bobbin case, with the thread caught into the tension spring (you will hear a little click as it goes in). The bobbin will turn anticlockwise as you draw thread out of it. Use the top thread to raise the bottom thread up, replace the needle plate and bobbin case cover in place, then take both threads to the back of the sewing area. Hold them firmly as you start sewing! very important that you don't allow the thread tails to be caught and dragged into the bobbin as they will jam around the rotary hook.

Readjust the needle timing and check the thread tensions top and bottom.

it would be a very good idea to have the machine serviced since
someone gave the machine to you, and having the bobbin
case replaced would be a good idea and having the spring
checked would be good too.

Check your top tension dial setting is on 5, as this sounds like the thread is not in tension fully so is looping up around the rotary hook and not being held back by the tension device. Is the pressure foot lowered (this turns the tension on) fully and is the thread through the tension discs correctly. Lower the pressure foot and pull the top thread from below the tension dial, it should feel firm to pull, if it comes out easy, its not undertension, device could be faulty and machine will need to be serviced.

Also, check that the bobbin case is fully inserted into the rotary hook in the correct position, bobbin is in and rotating the right way and thread is into the tension spring fully.

If you have the manual pull it out, and carefully check the threading up instructions and follow on your machine - it is probably one of these things causing the jamming.

Make sure there is no fluff/lint within the bobbin case causing the bobbin to stand proud. Pressure from the bobbin thread can sometimes stretch the bobbin itself.. replace the bobbin with a brand new one. Double check your threading be removing all thread and starting from scratch.

This little "notch" is a stopper and there needs to be a little play so the bobbin case can move approx 2-3mm and allow the thread to pass through. Adjust the spring stopper on the main body just a very little to give it some play and try again....if this was adjusted at dervice, it is not good !

If you have the manual take a better look at how to put the bobbin in the case,

sounds like you are putting it in wrong,

make sure you put the bobbin in with the thread com-ming off the bobbin in the right direction (left or right) if not put in the right way you will get what you are saying

ALSO: bring up the bobbin thread your self by turning the hand wheal and bring the thread a few inches to the back of the needle and hold when starting to sew the first 2-5 stitches.

when you do not hold the thread the machine will pull the thread in the bobbin area and cause problems.

you will get use to holding and it will get easier.

hope this helps

On the bobbin case is a small screw if it is to loose the thread won't feed like it should make sure that screw is tight but not so tight you can't get the thread through it. Also check to make sure you have threaded the top right. hope that helps

hello, I had the exact same problem and could not find the solution until i took my machine to my sewing sensei and i solved my tedious problem. It was actually not a tension problem at all but a threading problem. Make sure you have threaded your bobbin correctly and that when you pull on the bobbin thread that the bobbin turns the right way. (mine must spin anti clockwise to work)  Make sure that when you pull up the bobbin thread using the needle that it is not over the feed dogs connective bar but under it. A big problem when the thread gets caught around the bobbin case wheel is that the thread is looped around the feed dogs once and that causes the thread to get caught around the bobbin wheel. In conclusion, thread the bobbin correctly and read over your instruction book before spending the money to get it fixe in s shop.