Not sure if this has any value to anyone, but I thought I'd share the info.
As a result of this thread, I sent an email to Kubota via their website which was forwarded to their regional office in Dallas. I expressed concern about the reliability of the pto drive on the
L2800/
L3400 HST tractors. The email was sent this past weekend.(5/27/07) Five minutes ago, a Mr. Bill Gertner with Kubota in Dallas called me. Bill is the sales manager for the south/Dallas region. I shared with him a growing concern in the tractor community about this problem, and how widespread it is. He was interested in this forum, and I gave him the url with a brief instruction on finding this thread. (couldn't hurt right?)
After conveying the issues, his response was as follows;
He acknowldged a design change for the HST that moved the overrunning clutch assembly higher in the transmission which caused it to be louder, but he said the failure rate was extremely low, although he didn't have numbers or percentages. (probably something they don't publicize) The
L2800 HST has been their highest selling tractor for some time, and he assured me that Kubota would stand behind their engineering design. He said that although the clutch was louder than folks might be accustomed to, it was not an indicator of iminent failure.
I asked him directly if the pto assembly was considered part of the powertrain for warranty purposes. He stated "absolutely" since it was housed in the final drive assembly. Hope that helps someone.
Have a great day.
k