Seems to have plenty of power, it will steer when I first start running it, and then the turning fades away and I have to give it full power and it will steer, and then that fades away to nothing. Forward and reverse seems to work great. I do have one drive motor dripping fluid from a forward seal but not real bad.Does it have power? push it against a tree or something that won't move, it should dig 4 holes.
If not, i'd like to start by checking the drive motor seals, they may be leaking internally which won't give it enough power to turn the machine.
It's starting to sound like wear. When you first start up, the oil is thick. The warmer it gets, the thinner the oil gets and it by-passes any point that is worn a lot quicker. You feel it with lower power, slower driving speeds too.Seems to have plenty of power, it will steer when I first start running it, and then the turning fades away and I have to give it full power and it will steer, and then that fades away to nothing. Forward and reverse seems to work great. I do have one drive motor dripping fluid from a forward seal but not real bad.