We got our first 9600 in 1990, then went to a 1994 model. last year we replaced both elevator chains, cylinder bars, feederhouse chain, and the front and back walker bearings. This year we had no problems and we got it running a lot faster and smoother than it was. We have 2250 hours on it and it is still a good solid machine. Overall, we've been pretty happy with the 9000 series, especially compared to the 8820's we used to run.