Recent content by aurthuritis

Advice. Use only kubota filters on the hst. Use only kubota super udt fluid in the transmission and knuckles. Change the fluid yearly.

Did you put a little white lithium grease in the primary pump?

Confirm that your primary pump is primed and has flow? If it has flow then you probably need to look at the relief valves. Check your hst poppet to make sure it isn't stuck open.

Better check the hydraulic oil level.

Sounds like you understand pretty good. The servo piston is just a two sided hydraulic piston that moves the swash plate with hydraulic power so that you don't have to use foot force on the peddle. When you center the servo piston all you are doing is centering the swash. Sounds like your servo...

Just for clarity yours is the old model rtv 1100c and is a completely different animal from the rtvx 1100c. Try putting your machine in neutral engine off on concrete or hard level surfaces and push it by hand. It should roll fairly easy... if it doesn't then you most likely have a brake...

Just to clarify?? Your rtv stopped moving or at least was showing some transmission issues? The oil level in the hst was low so you disassembled everything?

No problem and good luck. Hopefully all you need is the valve plates but if the metal came from the hydrostatic and was magnetic and shiny i would think your valve pistons or possibly a bearing is bad. Look at Kiwi thread i posted to you ? He rebuilt successfully with mix and match parts and...

Yes someone with basic skills and hand tools have done wonders. I would suggest that the brass valve plates be replaced with new though. They are important and don't really cost that much

https://www.nettractortalk.com/forums/threads/rtv-x1120d-hst-rebuild.20013/#post-149057

Atta Boy!

Thanks for the hours and miles. Seems that your machine would be at average 4mph and 6 hours a month and just a few minutes a day or it sits and gets used occasionally for longer periods of time. This is the perfect profile for transmission failure from oil not getting hot enough to boil out...

Lets start using this thread instead of having to flip so many pages?

If you want your RTV to last for many years and hours and still run when you get tired of it? My advice is as follows. change your hydrostatic transmission oil at least once per year and use kubota super UDT oil and OEM filters. Especially if you don't use it Hard!

Ok thanks. Fresh fluids i assume filters and kubota fluids? Dealer adjusted pressures to what? Silver metal on what plug?" Makes a huge difference ". Silver metal on the gear case magnet is normal as long as it isn't chunky. The suction filter should have been cut open to see what the hst...