I have been using a machine owned by a lady in a church group. She has another machine that she said she would sell to me cheap but it has a problem. We looked at it and what she tells me and what I am observing is that the machine threads, the bobbin is in correctly but when you lower the needle it doesn't catch the bobbin thread. It seems to be hanging on a spot in the part that the bobbin case sets in. In other words, the bobbin isn't catching but the part of the bobbin carrier that isn't removable is catching, hanging and breaking the thread. I hope this is making sense. So when the needle thread hangs in that area, it breaks. Could this be a tension adjustment problem. I watched Muv's video but it didn't seem to address the problem. Should I suggest that she take it to be repaired? The machine seems to work well other than the thread hanging. Oh, I don't know if it is hanging at the very same spot everytime.