ok im not sure if i can answer all of those questins buts heres what i know
the pump sounds like its working way to hard, or almost like its starving for oil.
It is not starving for oil, its got lots of oil
It has lots of charge pressure, im told.
It has lots of gpm at the scvs im told. it raises implemtens fast that i know.
it does steer fine and the brakes work are fine
When i steer it makes a howling noise, when i raise and lower implement same noise.
Just idling u can hear the pump labouring. hard to describe the noise. sound similar to how a tractor sounds if it is operating low on oil. or working really hard
One thing i did in the yard tonight was take off the pressure line to the scvs, pointed it at the ground and started the tractor. oil shot half way across the yard i shut it off quickly and put it back on. the pump does put out a lot of pressure to the svcs. Next i took off the return line (the one underneath the pressure line, its a little bigger) and started the tractor. Oil also came out of that line, not with the same amount of pressure but it came out fairly quick. Nothing came out of the SCV block where i had taken the hose off.
Is that normal? i had though the return line shouldnt have pressure at all. could there be a valve or something stuck in the hyd oil filter housing where my return line goes to, that would cause that, or is it normal? I also wasnt sure if oil would pour out of the scv block or not. but it didnt
The tractor goes back to jd in a few days, im just trying to wrap my own head around this problem. i was told by jd that some filings or something could have gotten stuck in a valve somewhere letting a lot of oil bypass. that hyds filter seems like the one place where a lot of large hoses meet.