Perplexed
 

A while back Eric and I bought a 2072 that had been repowered with a command engine, a 18 hp. The hydro seemed strong and it had power to spare. The power steering was another story. It was not working.
What we have done so far:
Changed tranny oil and filter
Fixed a couple of leaks in hydro with new seals and a new gasket.
Replaced the two valves on top as one was leaking.
Just replaced the steering column and steering cylinder with a known good one
Still no power steering.

The hydro unit works great to drive the tractor, infact it outperforms both our 2084 and 2086 but we just cannot find out why it does not work the power steering What are we missing here. We are fresh out of ideas.

Paul, how does the lift work? As in, will it lift a deck, blade ect? (If it has 3pt this is an easy test.)

Did a steel line get kinked during engine installation? Or crossed perhaps?

How is the Hydro System plumbed or piped..?? Anything change...??

Sounds to me like the power steering cylinder is in need of a rebuild.

He tried that to no avail :bigthink:

Wish I could contribute more but I don't have a lot of experience with PS systems. About the only suggestion I could offer is make sure the lines are bled but even this, it should still at LEAST work.

Yes the tractor has a 3 point and it is slow but works. I did not see any kinked or altered lines but then again was not looking for that. I drove it this morning and It seems to be just a tiny bit better after the col and cyl change but is certainly not working any where near the way it should.

My 2072 was stiff and not feeling right after rebuild this spring. Terrible when first starter after steering rebuild to check for leaks. After finishing tractor moved outside to warm up steering felt a bit better. Used for a few minutes and now works great. One finger steering again. That was 30 hours ago. Hopefully your does the same.

The hydraulics are very slow and it hasn't had power steering since we've owned it. And as far as I can tell the line's are where they are supposed to be .

Kinda sounds like a pump problem. Can you check the system pressures?

Oak I was thinking the same thing. I will have to see who around here may have the tools I can barrow.