My Mother was going to throw it away because it was making a grinding sound and shaking when she used it. I’d like to try to keep it out of the dump so I said that I would try to fix it. It’s a forty year old machine, it probably weighs about twenty five pounds, and I doubt that newer models are as sturdy as this one. New models can cost about $500, so it could be worthwhile to try to fix it.
After doing some research, I found out that a common problem is that the gear lubricant can dry out, causing the gears to grind, eventually the motor will wear out if the old lubricant is not replaced. I bought some new lubricant, hoping that it wasn’t too late to save it.
The first thing to do is to knock out the pin that holds in the rotary. The little top pin, not the one on the stem below the spring. I almost knocked out that bottom pin, which would have been a big mistake as it’s very difficult to get back in.