The Ultra-tec is such a solid machine i doubt it needs any repairs unless it was totally abused. Some cutting houses use it for many years and I suspect they do get abused but still put out stones that sell. If and when in the future you decide to compete may want to check and align the machine. There are many articles on this site on how to do it in the archives but I would first learn the basics. Do not forget that faceting is supposed to be fun.
I agree with what Frank said above as well.