The needle is hitting the bobbin casing in the back. I have re-inserted the needle to make sure it is in properly. I have a Singer 248

SOURCE: needle hits bobbin case...

If the needle hits the bobbin case the are only 2 things that could be wrong. Lets hope its the easy one, there are more than one length of needles, if the needle is to long or it is not all the way up in the neelde bar, the needle will hit the inside of the bobbin case. Now if that is not the problem then the machine is out of time. ALWAYS check the easy stuff FIRST.

SOURCE: Bobbin Case Spins - in Huskystar C20

I had this problem when I first bought my machine. I took it in and they told me it was a recall problem. All the machines were having the same problem. They fixed it and I have not had the problem since. I bought mine at a Joanne fabrics. Hope this helps.

Hassy

• 1388 Answers
• Posted on Aug 27, 2009

SOURCE: singer 7426 timing off

Check the timing of the needle to the hook.
Here is a guide to generic principles of Timing

Testimonial: "very helpful...thank you"

SOURCE: needle hitting bobbin case model 750

This is a timing problem the hook timing needs adjustment, and possible the needle timing also

SOURCE: Bobbin won't spin to allow needle to catch thread

sometimes when you break a needle it can cause the machine to
jump time, the machine would have to be taken to a sewing machine
shop to be checked by the technican