A member mentioned a helpful hydraulic service in middle WV sometime back
10 year old post, but here ya go
Need help understanding my radiator hydraulics (https://www.foreforums.com/index.php?topic=20806.msg154024#msg154024)
Wayne Beckett
J & S Hydraulics, Inc
785 Airport Road
Sutton, WV 26601
Office: 304-765-7008
Cell: 304-619-4776
FAX:304-765-0109
This is from a few years back, I did talk to Wayne a couple of years ago. I don't know how to post a link to an old post. Go to search and type hydraulic fan repair, the look from a post from Jon Twok