B8200 HST Incline stalling

[Snider]

I have a B8200 HST that appears to have hydro problems. The trctor will move in ow range both forward and reerse. When you attempr to speed up or go up an incline, it stops. WHen it stops, it seems like there is a pressue relief valve that is opening.
I have the manual and see two different relief valves. Could these be the problem. Have not measured the pressures yet, but am making setups to adapt to my pressure gauges.

Has hydraulic pressure for all the other hydraulic needs such as the loader and 3pt and P/S.

 

[North Idaho Wolfman]

The HST is a completely separate Hydraulic pressure system than Loader and three point.
They are completely different pumps.

You could have a bad Mechanical clutch, that will cause it to loose power to the HST Pump.

 

[Mountainman]

If you can put a tiller or cutter on it and put it under load see if it works normal or if it stalls out. That'll help determine whether its the clutch or hydrostat issue