Fitting type and size JD 3720

[Markthevet]

Hi All,
These forums have been great for me and I hope the good folks of the forum can help me a bit further. I'm looking to add a couple of extra spool valves to my JD 3720 (on the basis I need 1 more and may as well fit a spare at same time). It already has the factory fit 3rd SCV. My plan is to takes the feed from the Tank side of the existing factory standard 3 spool monoblock and re-plumb to a new SCV block mounted on the ROPS and plumb the new valve's Tank port into the tank using the inlet vacated by removing the original tank return from the factory block . However I need some info to get some fittings and some pipes made up:
1- what is the size and type of fitting on the tank side of the SCV (and which one is it)
2 - what is the size and type of fitting on the other end of the pipe (I kind of assume that it goes to the tank.
I have the parts diagram, just not the detail I need.

 

[Dave M7040]

Think you need a valve block with power beyond feature. Using a return line to the tank from one valve block as a feed for another valve puts high pressure into interior spaces where the valve(s) were not designed for it.

If the first valve in the chain does not have PB, then you need to re-plumb putting the new valve with PB first in line.

I don't claim to be a great expert in the hydraulics field but this is the extent of my knowledge on the topic of adding stuff.

Dave M7040