Welcome Karrisabob, your machine kind of reminds me of some Elna machines I've seen. It looks like a very good machine to me. You probably don't need to take anything apart. There's some great tutorials here on cleaning up older machines. Spend a little time either reading them or watching the videos posted in them and read your owner's manual. Follow your owner's manual instructions for lubrication. Sewing machine oil is safe to use on any of these older machines. It won't damage the finish. Use it to wipe the machine down with a soft cloth. With a little effort it will loosen up the dried oil on the machine and you will be able to clean it off.
I'm new to sewing and sewing machines too. Why is this not considered a beginner machine?
Rodney