Backhoe hydraulic connection advice

VA_Doug

New member

Equipment
Kubota L3901
Jan 3, 2025
1
0
1
Virginia
I have an L3901 with a dealer installed rear remote set up to use with a hydraulic top link. I recently purchased a used backhoe. I have the frame kit installed, but trying to figure out the best way to setup for the backhoe hydraulics. I am new to hydraulic configurations. The FEL PB hose and the tank hose currently go to the rear remote block. What is the best way for me to attach the backhoe PB and tank hoses to the system? I'm assuming I can't just plug into the rear remote because the valve would be interrupting the flow? Thanks in advance.
 

Russell King

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Lifetime Member

Equipment
L185F, Modern Ag Competitor 4’ shredder, Rhino tiller, rear dirt scoop
Jun 17, 2012
5,456
1,474
113
Austin, Texas
See this thread that discusses how the piping for a backhoe needs to be done (hopefully it is the one I am recalling correctly).


I also think it depends on the tractor model and what hydraulic circuit is built into the tractor. But the basic idea is that the FEL PB goes to the next valve and the tank return goes back to the sump directly (not to another valve). Then that valve must have PB to next valve and a separate tank return line (that could be connected to the same spot as the previous tank return).

I recall that the backhoe should be the last valve before the three point hitch valve (that is usually a return port on the tractor). Also the backhoe may only have one return pressure line (not a tank return and PB also).

Can you post some pictures of how the tractor hydraulic block looks and what the hoses are connected to?
 
Last edited:

mdhughes

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Equipment
L3901DT
Dec 10, 2014
1,264
775
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Ste Geneveive county, MO
VA_Doug, do you have the install instructions for the backhoe? If not, let me know and I can send you a copy. I'm pretty sure it has how to plumb it with rear remotes. Or it could be the instructions for the rear remotes. Are the rear remotes "factory" or third party. I have the instruction for them also if you would like a copy.

Russell King is correct in saying that the BH should be the last thing on the loop.