I'll add these JD models 37,47, 48,143,145 to the models posted above. Photo shows correct method for attaching hyd's to your tractor's "open-center" hyd system which requires an open center loader control valve or OC plug.
Hey Jim. I have a 3 cyl 830 I am working on the hydraulics. You saw my other post about the plastic stuff I found in the transmission case. When I bought the tractor, the owner had a loader on it. He took off the loader when I bought it. He left a hose on the pressure fittings where his hoses were connected. The hose just went from one selector fitting to the next. The hose burst on my when I was working on the hydraulics and I am wondering whether I can remove the hose. I don't wee a purpose for it. I think he left it because he didn't have any plugs for the fittings, but I don't know.
Do you know if I can just remove the hose and put caps on the fittings? Looks to me like the pressure would go through and into the rockshaft housing.
I don't have a hose on it now, but the hose was running from the back of the valve to the bottom of the same valve. That is where you see the two shiny caps now. This is a picture from the rear of the tractor. Right side.
I think hose should be in place or unpainted block removed from tractor. One must be careful capping(blocking) oil flow on open center hyd's as blocking oil pathway could harm hyd pump.