My
G2000 recently had the same problem, which is how I found this thread.
While blowing snow the other night I felt a tugging on the steering wheel; the right front tire was completely flat. I inflated it, but was back in the garage within minutes. I figured it had to be a major puncture, so to see what was going on I pulled the cotter pin and attempted to remove the wheel. That was the start of a several day project!
Like austin1972 I was scratching my head trying to figure of the secret of removing the wheel. I tried using a dead blow hammer, a hard wood block and mallet and even a pry bar. Nothing would budge the wheel. So I went around to the other wheel with the same results. That's when I turned to TractorByNet for answers.
Anyway, my bearings were really frozen on. I tried a big bearing puller to no avail. I even took an air hammer to rattle the back side of the rim, and in doing so damaged the bearing seal. At this point I was committed, and since I knew I would be replacing bearings anyway, took a cold chisel to the inner race of the back bearing. Well after several heavy blows I was finally able to knock the wheel off of the shaft. All this hammering loosened the other side and I was able to get it off with a few taps to the rim.
After making a healthy donation to my local KUBOTA dealer I now have four new wheel bearings. I cleaned the shafts with emery cloth and took alvanko's advice and applied anti-seize. The wheels glided on perfectly.
From what I could see it is the back bearing that causes the problem. Water likely gets between the shaft flange and bearing, eventually migrating along the shaft/bearing interface. This is a size-on-size fit so there is enough room for water to get in there.
The tire? The bead was not sealing. I buffed up the rim and with a little soap and water got a good seal. There was no need to pull the wheel after all! :ashamed: