http://www.youtube.com/watch?v=zjYlr...eature=related
Look at this and then you can go to this guy's website. I'm going to order this for mine. He has a complete 2-disc set showing you how to do EVERYTHING to repair these wonderful machines. I have a black one and a green one and this is cheaper than having to take them in to be serviced. They were made to be repaired by their owner :-)