Yeah we had to make up some steel lines for the return side to wrap from the added oil cooler back under the side frame stiffener plate to the pump return. I don't see any other pics saved from my phone camera. 

This valve had a inlet, power beyond, and a straight through return on both sides. 
So pump to inlet. Power Beyond to Steering orbit inlet. Steering orbit return into rear facing side of valve. Front facing Tank port to oil cooler and back to pump return.

The FR12-30 cartridge is preset to allow 4 gpm power beyond. It doesn't do anything here as the TW20 pump is about 4.5gpm max anyway.

Knowing this would add heat we added the oil cooler. It was a generic one off ebay that had flared ends.

I think the tractor is still parked in the shop building right now. I can look tomorrow.

(diagram valve (full).jpg)

diagram valve (full).jpg (52KB - 99 downloads)

steer valve 6way diagram - Copy.pdf (19KB - 117 downloads)

steer valve main section diagram - Copy.pdf (19KB - 115 downloads)