KUBOTA RTV900 transmission issue

[BOYDII]

I have a 2007 RTV 900 2200 hours diesel, an issue that just popped up...when its cold, I put it in gear and it will take off and travel as normal but as it warms up transmission starts slipping and engine revs up but it won't go no matter what gear your in. Has been working fine now this happens... any ideas what I need to look at, check, adjust or is it an internal issue? Checked fluid level in transmission via dip stick and it's at the full mark and looks like clean fresh fluid. Does the tank under the seat have anything to do with the transmission or is it strictly for the power steering system it was low so added some fluid, no difference in operation. Any help/guidance is grealy appreciated.

 

[Camofurever1]

Yes, park your unit on level ground and check the fluid level in the tank under the passenger seat. Make sure you are using Kubota fluids. Last time the two hydro filters were changed? Last time a complete fluid change was done?

 

[BOYDII]

I did check the fluid level on level ground it's right up to the full mark on dip stick in transmission and I did add a gal to under seat tank, it's between low and high marks on tank and no change, using kubota udt fluid, filter replaced about year ago only has 30 hrs since fluid and filter change.