I have a 22" self-propelled ***** Craftsman. The drive box has never been lubricated, and I don't know how to do it.
The box has a small (1/8") access hole closed by a plastic plug. ***** site shows the parts list includes Shell Darina grease. I got the mower used, so I don't have the manual. It is a model 917 372251.
What do I do to get the grease in there?