I have a almost total failure of steering, front end loader and 3 point system. The first thing I noticed was that the steering was not responding and drifting. In a couple of minutes all 3 systems started to fail. The steering mostly free wheels, and then will catch and steer a little, and the front end loader would raise enough so that I could drive back to the shop. My understanding is that the hydraulic pump is two pumps in the same housing, and that the steering is separate from the other circuits. If that is true, it would seem that the pump is not getting fluid from the sump. No service manual. I have the Operators manual, and have checked the fluid levels. I don't have a clue on what to do next.