When I got my 401, the first thing I did was to get the manual out before I even plugged it in. The owner before me got it brand new as a Christmas present from her DH. She was decorating her home with an older machine. This 401 is in a desk cabinet. I love it. I have cleaned it at least once a week. The owner before me kept it in tip top shape. She was an interior designer and also made quilts. Just spend some time and go over your machine. Depending on how dirty it is, just ask anyone like J Miller and Macybaby and others. there are a lot of videos that can help you. Ask some one at your local quilt shop who they may recommend. One of my favorite haunts has a woman who does repair and maintenance for many of the customers there. Luckily, my DH is mechanically inclined and had been taking care of his mother's machine (when he was younger)which I found out to be just like mine but different style cabinet.