I take mine to the closest Bernina dealer which is about 20 minutes away. It is going in next week. A friend works in that area, and she is going to drop them off one day, and pick them up the next (we called and made an appointment). If I have been sewing a lot, I will do it yearly. But this time it has been 2 years since I have had it done. My sewing time has been minimal, so I decided it didn't need to go in after 1 year.