Not much other than some linkage under there, here is a picture looking in from the back, just straight linkage to the front (to the control levers) and linkage for an automatic height lockup that locks the 3 point up and turns off the pump flow when it reaches a set height. My linkage is bent and missing a pin when compared to the picture in the manual, but I dont think that is my problem:
Instructions in the manual that was linked to suggested that the cap in the PTO housing should have an adjuster nut on it and the washer should be free when the 3 point lever was forward, checked and it was free, but still no dice:
Pulled the cover off of the back of the PTO housing and looked while it was running and there was no fluid coming out of the aluminum tube like there should have been:
(the hole in the previous picture with the nut and washer inside is in the top of this picture for reference)
So, I drained the hydraulic fluid, pulled the PTO housing, then the pump, it wouldn't pump with the valve on, so I pulled the valve, then worked the old fluid out of the pump (there was a fair amount of sludgy fluid in the suction line), cleaned out the two pressure relief (or are they flow control?) valves on the pump (they were slightly sticky), blew the crud out of the suction line (with the strainer off) replaced the swollen and useless oring on the suction strainer (it was too big in diameter, so it got caught on the housing when I tried to push the strainer into place) and put it all back together, pic of the pump and valve on the bench:
Ran out of hydraulic fluid about 2 gallons short of what was needed, so I had to get more. Put that in tonight and it still isn't pumping.
I am tempted to remove the 3 way valve and stick a shop vac on the line there (the valves that the hand wheels push on dont seem to move so it probbaly needs to be cleaned anyway) and then crank it over, but I am not sure exactly how it comes apart and goes back together.
My other thought would be to use the "blow" side of the shop vac to pressurize the transmission to push the fluid into the pump, but I am not sure how that would work and if it would make a mess anywhere else.
Anyone have any suggestions on getting it to prime before I do something rash?
Thanks
Aaron Z