Viking Stitch Width Knob
My neighbor has asked me to get her Viking knob un-stuck. I've tried everything I know of. When I asked my boss how these knobs come off, he said, "they don't.' The stitch width knob pulls out to engage the buttonhole system. We should be able to push the knob back in to engage the stitch width. I can pull it out and push it back in, but I can't turn the knob to get any stitch width. Here's a couple pictures --one with the knob pushed in and one with it pulled out. Plus a picture of the thread mess I got out of the handwheel. Any suggestions?