Originally Posted by The Sewing Guy

Surely, I don't jest. ... This is a quick and easy way to do it. Am I saying it is the correct way? Nope, .... I did not say this was proper, that this was legitimate nor did I say it was recommended by a manufacturer. ........ would I ever use this method? Absolutely not. I clean them and use military spec bearing lube. .....In reality, the machine should be properly lubed by someone who knows sewing machines and can take the time to do it right. BUT, if that isn't an option, you can spray lube the entire mechanism, and the machine will keep functioning. No more, no less.