I bought an Oliver 1655 off an auction. at first the power steering and 3 point worked but not very strong. I hooked up my disc mower to the 3 point and hooked up the hydraulic up. The 3 point lifted the mower most of the way but I couldn t get enough pressure to tip it up with the cylinder to get it off the ground. I took what I think is the pressure relief valve off by my right calf and cleaned that. After that I got the mower to pick it up all the way so I moved the tractor and put the mower back down for the night. Now when I turn on the tractor nothing moves even a little bit, no 3 point no power steering but if I rev the tractor way up I can get it to kinda work occasionally where the power steering and the 3 point work but it doesn t have enough power to pull the mower up with the cylinder yet.