Log spliter qustion

[triptester]

Normally the return line should never exceed 20 PSI unless there is a obstruction in the line.

 

[arrow]

Normally the return line should never exceed 20 PSI unless there is an obstruction in the line.

Not on a log splitter.
Those pressures can be closer to 300 psi on a return.
You could possibly be thinking of the suction tube which l myself thought that was the discussion until l reread the post.

 

[WinterDeere]

Normally the return line should never exceed 20 PSI unless there is a obstruction in the line.

It depends on flow rate and filter size or construction. Most figure up to 100 psi as "normal operating", but you won't find many log splitter manufacturers with lines rated under 300 psi on the return side.

Assuming you won't see much more than 20 PSI, and selecting your line construction accordingly, is a recipe for a mess, the first time your filter gets a little clogged, or very cold weather causes pressure drop thru the filter to climb.

 

[WranglerX]

My return line for my DUERR 22 ton (30+ year old made by MDT) has filter rated for 400PSI..... Don't have to wonder why....

 

[WinterDeere]

My return line for my DUERR 22 ton (30+ year old made by MDT) has filter rated for 400PSI..... Don't have to wonder why....

I've heard of guys trying to run regular engine oil filters on log splitter hydraulic systems, only to have them fail, but I've never personally seen it.

But think about this. The 20 GPM pump on my log splitter is pushing 1.3 quarts per second through that return line and filter! Now, how many seconds does it take to yell "oh sh*t", collect your wits, and shut down the machine, when that line or filter blows out? I'm predicting at least five or six full quarts of ATF on the ground, before I get that stupid thing shut down, even if I move real quick. That's a huge mess to clean up, especially if it soaked me in the process.

YMMV, scale your own disaster, accordingly. I'll just spend the extra few dollars for a properly-rated hose.

 

[CK732]

Well now the spliter is running and no mess on the floor! The new filter body I put on is working good. It's a good thing I bought a 3/4 " hyd. line because lines are jumping when the spliter is on.

 

[nyone]

There are hard (semi-flexible) clear plastic tubings, such as polyethelene tubing that has a pressure rating of 190 psi at 72F and a max working temperature of 180F, but this is still incredibly low for a hydraulic system. This essentially translates to a blown line anytime someone is a little lax on their filter change routine

And that's why I just use hyd hose on every part of the system.

 

[JsJs]

Heck, i think most hydraulic lines on my tractor are only 1/2”.

Also did a home/hand made one using mostly scrounged parts. Out of the control return went to 1" back to filter then tank. Same stuff as feed line from tank to pump.

 

[WinterDeere]

That splitter got a Mr. Bean paint job!

 

[nyone]

That splitter got a Mr. Bean paint job!

I bet there dog, fence and driveway is also the same color.