I agree with Prism and would not take it in for servicing. I have a Viking bought in 1980 and used for many many draperies and other home dec projects, clothing and some piecing of quilts. I REGULARLY clean/cleaned out the bobbin area and my machine does not require oiling. I had it in for servicing one time and when I got it back, it was messed up and had to go back to be adjusted. unfortunately, something is now wrong with the gear for the presser foot pressure and it will not hold the pressure. A few places told me via the phone that it is obsolete and parts are unavailable. I am so sad about that. 34 years of wonderful reliability!! I bought a Bernina 830 6 years ago and it doesn't stand up to the Viking for dependability!