Sounds like the valve under the cab for the reel lift and header lift is faulty, seen it before. If so you can buy a kit to rebuild it from your dealer.
We have determined the hydraulic pump is bad, but we can't get it off the shaft. Does anyone have any advice on how to get the main hydraulic pump off.
Jason: Hold a hammer or something heavy under the hyd. pump drive shaft and hit the top side hard with a hammer. Then put a wrench on the pump shaft (there are flat spots on the shaft) and hit it with a hammer. If you live right it will unscrew. John