Hi I just acquired a Kubota T1600 Hydrostatic , diesel, with 848 hours on it .The tractor and deck look almost new, great condition fires up great and runs fantastic, I have been inquiring about the Hydro from different sources with out much luck, it moves great for 15-20 minutes then has significant trouble going up the slightest incline, most feed back says it sounds like the hydro pump, can this pump be rebuilt and if so where could I get the parts? Thanks for any help, this sight looks very informative