By the way, I have an old singer machine from a friend.
The model is 331k6 with a roller foot.
Initially, it had immovable parts because it wasn't in use for a long time. I have cleaned up, oiled and now the parts are moving.
Unfortunately though,it's not stitching.
I would like help for the manual if any.
Recommended needle and any other help to get it in motion. Thank you all in advance.