HI, On my old Kenmore machines I used to oil all the moving parts. kept them clean and never had them in the shop. Then I got three computerized machines an was told never to oil them. However, my newest one is in the shop as we speak, (only a yr. old) and the dealer told me when I pick it up he will show me where I can put some oil on it occasionally. Wish I had the old Kenmore back. Live and learn. Gave it away and I don't think the lady ever used it. Marge