Last spring during planting season my 1755 steering went crazy. When I got to the end and tried to lift the planter the hydraulics would not raise the planter. After I bottomed out the steering all the way to the right the hydraulics would raise the planter. I checked the pressure compensator valve and everything was in tact. We even hooked up a pressure gauge and there is pressure to the remotes in the rear and the PTO works. I spent the money on a re-manufactured hydraulic pump to no avail! still having the same problem. Does anyone have any suggestions.