I bought the L. He said I best change the hydro oil and filter before harvest. I don"t have it home yet still working on getting someone to trailer it and also looking for a header trailer. Anyhow Is there anything I should know when changing the hydro oil and filter?? Any specific oil? I will go to Agco for the filter should I get Agco oil? I want to do all I can take care of it. Might be leasing 120 more acres next summer that is 30 miles from home base. Also... How do you grease the walker bearing blocks?... The question come to be a bit later....?? I should be more clear. I do know how to grease them, at least fair enough. But how do you get to them??