Im having trouble with the bobbin tread when i sow the bottom threadcomes out in big clumps and then jams the needle

Make sure you are using the correct bobbin, and that it was threaded properly. Check needle and plate to make sure there are no nicks. Clean all fuzz from the bobbin area. Always thread needle with needle down.

Hi
When the tread gives trouble on the bottom of the fabric, it is the top thread that causes it.
Check your top tension.

If not your needle could be dull so u might have to change it.

Did it break the needle when you changed stitches? Or did it just go straight to jamming.

change the needle
clean under the needle plate & in the bobbin area for lint & loose threads

try changing the needle--flat side goes to the back of the machine
check the thread take up lever & see if the thread is still on it
it's also possible that the machine is out of time & needs to serviced

I think that your should try a new needle, it may be bent or have burr on it. It problem persists call Singer at 1-800-4singer, good luck

try re-threading your machine. usually when the machine is jammed at the bobbin or when the needle gets stuck to the bobbin thread, it means that there is an error with the thread. make sure that the thread isn't pulled through the wrong side of the needle, wrapped the wrong way around the wheels on the top, and that the bobbin is threaded correctly. if this doesn't work, you may want to contact their hotline.

Try turning the bobbin around. Some bobbins should turn clockwise, some counter clockwise. What you described is what my Kenmore and Brother machines do when the bobbin is in incorrectly.

Are you using a size "A" (Class 15) bobbin? If you are using pre-wounds and they are not this size... they will jump around alot. The size of an "L" is very similar, but they are not as tall (height off the table when laying flat on the round side... like when sitting in the bobbin case.) There are tricks to using the thinner bobbins... See if you have a "taller" size "A"/Class 15 and if that corrects the trouble. [email protected]