Hobo's suggestion was the key - (using a screwdriver in the fill hole and moving the hand control lever which in turn moves the hydraulic lift control valve in). I pulled the cover again adjusted the valve mimicking the same action. Now, moving the lift control lever back, moves the valve to its full stopped position. All works well and I'm cutting brush again. Quite a learning experience.
Thanks to all that took the time to contribute and special thanks to Hobo.
I hope this might help someone else down the road.
Thanks to all that took the time to contribute and special thanks to Hobo.
I hope this might help someone else down the road.