machine is back up and running. New valve plate fixed the problem. So quick question since tracks are new to me. With the tracks off the ground, I ran the hydraulic system unloaded just to work all the air out since I replaced all filters and the oil. Coming from tire machines, I was surprised how unsmooth the tracks were up in the air. It was like a rusty chain on rusted sprockets?? the tracks did not rotate smooth... enough that I check for bad rollers for loose bearings... but found none. Tracks appear to be tensioned properly but man- they were jumping, binding and scraping enough to cause some concern. They appeared better on the ground but I wasn't expecting that much roughness from rubber tracks?