4450 Deere loader control valve plumbing

[deerefanatic]

Hi guys, we have a 4450 in our shop that the customer is putting a loader on it. We have the loader control valve (closed center of course) mounted and I'm going to take the supply pressure off of the downstream side of the priority valve. That part is figured out. But what I don't know is where to dump the return? This is a 15 speed powershift tractor, which uses different filters than the quad range or earlier 8 speed power shifts.. Do I still use a ported filter housing, or do I need to T a line in somewhere else?

I've got a full machine shop here, so I could probably just port one of the existing filter housings, but I'm not sure which one to return to..

Thanks for any help.

 

[Tx Jim]

Most correct method would be utilizing a power beyond block mounted between LH scv & rockshaft housing. Yrs ago I had a JD 158 FEL with joystick control mounted on my 4255 with QR trans that was teed into supply line on RH side under SGB & return routed back to sump. FEL operated without hesitation but I only utilized FEL for hauling rd bales.

This post was edited by Tx Jim on 03/16/2022 at 05:23 am.

 

[M w J]

I would say for sure you would be happy with the power beyond block.

 

[deerefanatic]

Do you know by chance where in the parts book one would find that power beyond block? I'm looking at the parts diagram you show, and looked it up on JDParts myself. It appears they are tapping in to the back side of the priority valve just as I am planning on, and then using some sort of JIC/ORB adapter to dump the return somewhere...

 

[Tx Jim]

IIRC photo I posted return hose fitting attaches to side of RS housing

 

[Cliff Nelson]

In the parts catalog look for AUXILIARY HYDRAULIC OUTLET KIT.