MR.Bill Brandt, I appreciated the help that I received from Larry. Unfortunately the problem that I have with this Hydraulic Unit goes deeper then just removing the plug. I removed the plug as Larry instructed and my controls started to work. However, there is no lifting power within the system. I am getting a 2000 lbs gauge so that I can test my line pressures. I am still looking for suggestions on why this unit is not developing enough power to lift my plow. I am very thankful for the help that I received from Mr. Larry Harsin and all the other Oliver experts.
Thanks again
Bill Wiley.