I am assuming yours is computerized. Once I tried to clean my Babylock sewing/embroidery machine by taking almost everything apart, wanted to save on a cleaning bill. Ha! What a mistake that was. I really messed something up and it would cost me so much to get the new computerized part that it is prohibitive. So my Babylock is dead and I am very sad because I loved it so much. It had all of the decorative stitches as well as the embroidery function. Had downloaded hundreds of patterns for it and will now have to buy a new device to download for the Bernina plus the blank card. So I am ending up paying a lot more for the used Bernina and the downloading device than it would have cost to have it cleaned professionally. Live and learn (the hard and expensive way.) Warning: let the professionals do the cleaning except for very minor things.