Sewing machine maintenance and repair

We all know the importance of sewing machine maintenance. Without our sewing machine running in top form we will be out of business - fast. Most of us need to learn maintenance of our sewing machines, those that don't learn obviously have enough money to have someone else do it for them. There is a great book that teaches you extensive sewing machine maintenance and repair. It even goes on to show you how to become a sewing machine repair person. Now that might lead into a whole other business! Here is the link to the book "How to repair your sewing machine"