I have a Kubota Z122R zero turn mower that continually throws the belt that drives the blades on the mower. I purchased this mower last October and only began using it this Spring. It has less than 10 hours total and is used on a residential lawn of about a half acre in size. I have had it repaired under warranty with the replacement of the idler and pulleys and it worked O.K. for about three mowings and then threw the belt again. I tried to contact Kubota directly and their website is not very forthcoming about how to contact them by phone or e-mail. At this point I am very frustrated with this lawn mower which was not inexpensive. I will probably end up taking it back for additional warranty work but I have to transport it 25 miles to the dealer on my own dime. Is anyone else having this issue with this model Kubota? I'm very disappointed with this mower!