4430 steering valve again

[Ken Henry]

Hi again, I am enclosing pictures of the two steering valves. The black one is from the cab that came with tractor (burned cab). It has only four ports. In one picture I’m pointing to the area where the green valve has the fifth port. Both valves are from cabs with the small seat bucket. Also, there is a picture showing the two lines to steering motor and a pressure gauge in third line. I haven’t started the tractor so don’t know what pressure will be there. Thanks again for any assistance.
Ken






 

[tim s]

Okay I with you now,,I was thinking that you were dealing with the new/old style systems,,these are the same valves, but not real sure why the different ports ?? In the second pic the upper right fitting is for right steer, the lower is for left steer, the upper left (smaller one) is for the pressure feed (in port),,there should be a return port in the lower area, be careful "not" to cap that port,,the pressure in will be system pressure 2250psi, as well as the 2 steering to steer motor lines.. the return should be next to nothing to maybe50psi or so from line back pressure,,but the return side will not deal with high pressure the structure of the valve on that return side is not meant for it.