Hydraulics for backhoe attachment

Mike St. Martin · Jan 9, 2015

This week I purchased a used backhoe attachment
for $2000 to use on my tractor.

The tractor is a 1963 Ford 4000 with 19-105
loader and front mounted pump (11.5 gpm @ 1800
psi). The Parker loader valve has two unused
ports on top labeled "R" and "CO" (or possibly
"G" and "D").

The backhoe attachment is a Bobcat 6TB with
frame and two 1/2" quick couplings (red and
green tie wraps). I will visit a Bobcat dealer
next week to get a manual and determine the
type of valves used on the backhoe (open or
closed centered).

I could use some advice on the best way to
connect the backhoe hydraulics.

1. Is it possible the loader valve has power
beyond capability and I can connect to these
ports? "R" = Return, "CO" = ?
2. Should I connect prior to the loader valve
with a type of priority valve?
3. Are there other possibilities I should
consider?

I appreciate your comments and advice.

old · Jan 9, 2015

I cna not say for sure on yours but on the back hoe set up I have there is a diverter valve which switches hyds from the load to the backhoe valve body. I would have to look at it to be sure how it is set up

sunbeam · Jan 9, 2015

I did this on a 5000 Get 2 large capacity quick couplers put one in the line from the loader valve return before a filter and the other on the hoses to the backhoe. When you put the hoe on just unplug the return oil coupler and plug it into the back hoe couplers. When removing hoe don't forget to hook the return line couple back up before starting engine.

souNdguy · Jan 9, 2015

I have a woods 6500 on an 850 ford.

Mine has a PTO pump, however that is an optional kit according to the manual, otherwise you would power it off tractor Hyde, thus mine uses open center valves. Your manual should tell you which.

Andy Wickiser · Jan 9, 2015

Ford's way of doing it was to have a simple push-in/pull-out selector valve and hydraulic filter assembly mounted underneath the loader control valve. The hydraulic flow went to either the loader (pushed in) or backhoe (pulled out) but not both at the same time. The backhoe was plugged in using quick couplers similar to yours. Your valve doesn't look original so you probably have other options if you can find the data for your Parker valve.

Hydraulics for backhoe attachment

Mike St. Martin

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old

Well-known Member

sunbeam

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souNdguy

Well-known Member

Andy Wickiser

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