This machine was purchased back in the early 1990s. Used for about 15 years, then the tension dial broke (or became really loose). I finally took up the courage to open it up, cleaned and oiled it, and have the dial fixed. I had asked the sewing machine guy to help me fix it when it 'broke'...all he said was there was nothing he could do and there were no more spare parts. His advise was to go buy the new sergers. I did buy a Pfaff Hobbylock 2.0, but it's no match for this Jaguar Lock. Well, after learning from a lot from a Vintage Sewing Machine Group, I finally took up the courage to fix it myself. It took me half a day, a lot of patience and a ton of calmness, but I got it done. It was my first serger, and I absolute love it too much to throw away. It works well and relatively quiet too. Run at full speed, but no vibration or loud noise. If you get a chance at acquiring a White 534 Superlock, you will be blessed with many years of great serging experience.