Viking mega quilter issues
I recently purchased a used viking mega quilter (it is like new) with inspira frame and cruise control. I am having all kinds of problems with the thread. I have changed the bobbin, adjusted the tension on top and bottom, changed the thread, re-threaded numerous times, changed the needle, readjusted the frame, everything i can think of. I will sew for 5-10 inches and the thread breaks. Sometimes it skips stitches, sometimes the stitches are large, sometimes they are small. I don't understand! Any help would be appreciated. Thanks