Originally Posted by bkay

I've never had a treadle, so I'm giving overall vintage machine advice. First, it needs to be cleaned and oiled. Here is a post that Miriam made several years ago How to Clean Up and use a vintage sewing machine - videos by Muv and Fav(It has some links in it on how to clean a machine in the first post. I understand that Miriam will post an answer on that thread if you have a question, although she doesn't generally post here very often.)

Download the manual, it should tell you the oiling points. Basically, oil anything that moves. Once it's cleaned and oiled, oftentimes, that's all it needs.

Someone more knowledgeable than me will come along and add or correct what I've suggested.

Bkay