Power Beyond on m8200

[yardbota]

I'm trying to id the PB port on my m8200. Attached is a pic of the controller which I'm hoping to replace with a Summit valve b/c the bucket acts like a tilt a whirl ride. None of the ports on existing valve are labeled.
The side ports go to a block near the pump which has rigid lines running to the 3Pt controller. The open center port has a flex line running to the tank.
I have searched everywhere for Hyd info on the tractor. I think the joy stick valve is a Nimco.

thank-you
bill g

 

[Harry in Ky]

I can't see Kubota using a Nimco loader valve so this must be an after market loader. Nimco valves are notoriously problematic and are replaced with something better on a regular basis everywhere. Since the basics are all there (pressure, PB, and sump return) I would suggest you start shopping for a better quality loader valve and change it out.