Originally Posted by
Val in IN
Could it be a bad batch of needles? Sometimes they have a burr in the eye and it will shred and break the thread. Is the tension correct? Did you thread the machine with the foot in the UP position so that the thread "seats" properly between the tension disks? Are you using the same thread in the bobbin? Are you moving the piece too fast? Is your machine clean? I actually changed my needle to a size 16 denim needle when my thread was breaking. Hope you can get this resolved, Good Luck!!
Thanks, Val! The larger-eye needle (I'm not sure what it was - it was new in a package in my grandmother's sewing box but it was one of those with a "range") is from a different package as the other two. I'm using the same thread top and bobbin. As for moving the piece too fast, I've tried varying speeds (foot and hands). The thing is, up until the thread breaks the stitches are great! No loops or nests, no punching through...it looks the same on top as it does on the bottom.