I have a 510 disel combine was working great until my son who was riding with me pulled the auger swing leaver for me and when he let it go it stuck goin in. I didn't notice it right away and ran the machine for 15 min or so until I smelled the Hydroloc fluid was super hot the same time when I moved the header valve it went down and did not come back up. The auger valve still moves but makes more noise the steering works fine and variable speed still works fine. It also strangely will start thrashing without engaging the leaver when I throttle the machine up.I have installed new pump and auger valve in tank still no better any help would be greatly appreciated