Backhoe 3Pt log splitter off backhoe lines

/ 3Pt log splitter off backhoe lines #42  
Welcome to TBN Keith:D

You are correct in that the lines MUST be either connected together, or connected to a Open Center valve so that the fluid will have some place to go. There is the full flow of the hydraulic pump in those line whenever the tractor is running-and interrupting that flow can cause damage to the machine.

So basically, when the backhoe is removed-the two lines are coupled together forming the PB loop. You can insert a OC valve into the loop to power other things just the the backhoe is inserted into the loop.

Clear as mud?:D

I was trying to reply to your last post back to me and was trying to edit the answer to separate your quotes from mine and ended up deleting the post. Didn't realize it would delete the original reply from you at the same time. Maybe you know how to restore the post?

Here's what I wrote: The part I don't get is why does the BH need a separate return and a PB connection? When is the return to tank flowing? I don't understand the note in the OM (see attached, bottom of page, after "Important:..."). If you can explain it, I'll stop doing this :confused2: Either way, thanks for replying.
 

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  • Kubota OM p. 47.pdf
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/ 3Pt log splitter off backhoe lines #43  
I was trying to reply to your last post back to me and was trying to edit the answer to separate your quotes from mine and ended up deleting the post. Didn't realize it would delete the original reply from you at the same time. Maybe you know how to restore the post?

Here's what I wrote: The part I don't get is why does the BH need a separate return and a PB connection? When is the return to tank flowing? I don't understand the note in the OM (see attached, bottom of page, after "Important:..."). If you can explain it, I'll stop doing this :confused2: Either way, thanks for replying.

In a PB setup, only "waste oil" from the cylinders flows to the T or OUT port. Kubota only very recently use PB equipped valve on their backhoes, JD still does not-they only have to lines.

I am not saying you are wrong by any means-quite the contrary. But I am saying that there are a LOT of 'hoes and splitters hooked up without it.
 

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