Nelco Sewing Machines
How do I oil a Nelco YM40 sewing machine?
You can use the general instructions here:
http://aces.nmsu.edu/pubs/_c/c-102.html
Be sure to use sewing machine oil, not WD-40 (it’s a solvent, not a lubricant, and will evaporate and freeze the machine) nor 3 in 1 type oils (they get gummy and freeze the machine). You can get a bottle of sewing machine oil at Walmart ($3/4oz) or any sewing machine shop and most fabric stores.