That's the problem the lever stays where it was when I let got of it instead of returning to the neutral center position.I'll try lubeing it and see what happens.
I have the same problem, checked oil level, and added to full mark(about a pint)
stuck in down position. The Maintenance Manul sugested turning steering wheel right and left several times to release air traped in system, or replaceing the Strainer. Thow it seems that it is a mechanical issue back pressure could be the problem. I have not tried either of these yet.