I have a question I seem to have a issue going on with my PTO, the lever used to raise my PTO has a scale 1-8 I think with 8 being fully raised. My problem occurs when I try to go to 8, it causes the hydraulics to whine and the front end loader will raise very very slow. If I lower the lever to about 6 or 7 the whine stops and the FEL works normal. I have never noticed this before and a dealer is over 100 miles away. Any ideas. The fluid is a little over half in the sight glass with the PTO up and the FEL down and flat. Thanks