Yup Charlee is right - grab a cup of tea and watch Muv's videos - then grab an oil can and start oiling all the places that move top and bottom. Turn the wheel as you go. Those old machines are so amazing. Don't tear the whole thing down to clean it unless you have someone lined up to repaint the machine. Look at little nicks and scratches as merit badges that machine has won from being used. Here are links to electric machines I have cleaned up:
http://www.quiltingboard.com/vintage...t-t174236.html
http://www.quiltingboard.com/picture...c-t162425.html
http://www.quiltingboard.com/vintage...r-t169127.html
The older machines clean up like Muv's and you are welcome to join us on the Vintage Sewing Machine Shop - you can ask questions - do post pictures of your machine
Link:
http://www.quiltingboard.com/vintage...ll-t43881.html There is a lot to read or just kind of scan through there or you can just go to the end and join in. Don't feel shy - there are NO DUMB questions but the ones that go unasked.