Originally Posted by
miriam
I just got two Japanese deluxe machines - both have frozen up knobs and back stitch button. Any ideas how to get the knobs working?
If they are zigzag and the top comes off, oil with your precious triflow from the inside. I had one that was sticky, and just sewing machine oil helped it break loose. And when the stitch length regulator is set to 0, it won't backstitch anyway, so oil them all. If the top doesn't come off, then try from the end or from the back, behind the access plate. I know wd40 is a no-no, but sometimes is necessary. Do you have pics of the machines?