Kubota 1120 RTV Kioti DK-40, MF-135, Ventrac 4500Y
Check the simple stuff, are you in 4 wheel? is the brake on? where you working in the woods? I say that cause I had some stuff stuck the stopped the pedal from working all the way. That silver tint, is it just a tad of silver or a lot?
Sounds like the simple stuff is out of the way. Time to start making pressure measurements on the HST.. still under warranty? should be... time to return to the dealer in my opinion.