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.
Backhoe hydraulic connection advice
- Thread starter VA_Doug
- Start date
Russell King
Well-known member
Lifetime Member
Equipment
L185F, Modern Ag Competitor 4’ shredder, Rhino tiller, rear dirt scoop
See this thread that discusses how the piping for a backhoe needs to be done (hopefully it is the one I am recalling correctly).
www.orangetractortalks.com
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?
Is this the correct plan for adding a slide valve?
Figure 1 shows the hydraulic line of my current tractor, and Figure 2 shows the plan for adding a slide valve. Is this correct? In fact, I can't see the structure from 3PT to PUMP. I just guessed it based on the knowledge of seniors.
www.orangetractortalks.com
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?
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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.
Russell King is correct in saying that the BH should be the last thing on the loop.
Thanks for your replies. I've been out of town so just now getting back to this.
mdhughes, I have the instructions for the BH 77, my connection kit for the backhoe is BH 4988. As far as I can find, it only describes connecting the BH directly to the FEL and the hydraulic block. It doesn't mention the remotes. The rear remote is factory installed and I don't have the instructions for those. I would appreciate it if you can attach those. Only the first position is currently installed and it is set up for a hydraulic top link. I'm wondering if I should install a second remote with a detent valve and connect the backhoe to that.
mdhughes, I have the instructions for the BH 77, my connection kit for the backhoe is BH 4988. As far as I can find, it only describes connecting the BH directly to the FEL and the hydraulic block. It doesn't mention the remotes. The rear remote is factory installed and I don't have the instructions for those. I would appreciate it if you can attach those. Only the first position is currently installed and it is set up for a hydraulic top link. I'm wondering if I should install a second remote with a detent valve and connect the backhoe to that.
No you don’t want to install a second remote with a detention!!! As posted prior attach a photo of what is there already.
Runs With Scissors
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L2501 TLB , Grappel, Brush Hog, Box Blade, Ballast box, Forks, Tiller, PH digger
I think I remember @TheOldHokie saying that the BH has to be the "last thing in the circuit" for some reason.
For my BH77, when you disconnect it, you have to "reconnect" the BH hydraulic feed hose to the tractor or damage will result.
That does not sound similar to disconnecting rear remotes, since you don't have to 'reconnect anything".
For my BH77, when you disconnect it, you have to "reconnect" the BH hydraulic feed hose to the tractor or damage will result.
That does not sound similar to disconnecting rear remotes, since you don't have to 'reconnect anything".
In my case, I later added factory rear remotes to my already-installed backhoe (BH77).
See pics and the parts diagram (with notes I added) for how ultimately the hoses got routed.
In a nutshell, I had to take the rear right (loaded) tire and fender off, and address the two hydraulic hoses for the backhoe.
You also need two extension hoses for each remote valve stack, and a different clamp plate for the ROPs.
One last piece of advice, when you have the backhoe attached and in use, be sure to secure (or remember to have) the 3-point lift lever all the way forward (or down), or you’ll likely damage the valves germane to the Backhoe itself.
See pics and the parts diagram (with notes I added) for how ultimately the hoses got routed.
In a nutshell, I had to take the rear right (loaded) tire and fender off, and address the two hydraulic hoses for the backhoe.
You also need two extension hoses for each remote valve stack, and a different clamp plate for the ROPs.
One last piece of advice, when you have the backhoe attached and in use, be sure to secure (or remember to have) the 3-point lift lever all the way forward (or down), or you’ll likely damage the valves germane to the Backhoe itself.
Fairly certain it's pretty simple. Locate the Power Beyond port on the rear remotes, remove the line, and install quick-connect fittings on both sides. Install corresponding quick-connect fittings on the two hoses for the backhoe. When installing the backhoe, shut off the machine, un-hook lines at power beyond, and re-complete the loop with the backhoe lines. To remove, reverse procedure. Either way you will always complete the loop, either directly out the rear remote power beyond port or through the backhoe. You will also still have your rear remotes functional if you want to add a thumb or use some other hydraulic-powered accessory with the backhoe installed.
you might have to add or change up your line configuration out of the power beyond port for the remotes so you have access to accomplish the hook up easily.
you might have to add or change up your line configuration out of the power beyond port for the remotes so you have access to accomplish the hook up easily.
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Yotekiller
Well-known member
Equipment
Kubota L2502, LP 60" BB, LP pallet forks, 60" KK Tiller, 55" HSI root grapple
Dan @TheOldHokie is usually really quick to hop on and help on these questions. Hope he is doing okay.
I was thinking about Dan the other day, haven't seen him post in a while. Although it says he was active on Wednesday.
Thank you. This is a great description and correlates with ayak's diagram. All the posts I've read on several sites said similar things, but I was never clear how to make the actual connection to the remote, i.e. which hose to remove/connect. This is very clear, Thanks!
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Could you elaborate? I think I know where the confusion (hint-the BH77 itself has no PB) lies, but I don’t want to misinterpret your comment.
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Since the BH77 itself doesn’t have a PB (it only has an inlet and outlet hose), its install instructions have you put its outlet hose over to the PB at the hydraulic block.
See pics below.
This is why the 3-point lever has to be forward/down at all times the BH77 is in use—else you’ll damage the Backhoe valves since raising the 3-point makes a restriction back to the tank.