Returning fluid directly to tank

[maximus188]

I have a B3200. I just got a loader put on it and hydraulic remotes. I want to get a small wood post driver to use on it. I need the hydraulic return to go directly to the tank for the driver. I have my dealer working on it and they're a bit stumped. The plan was to run it to the fill hole on the tank but it's not threaded on the B3200. It just has a plug. Does anyone know an easy way to make this happen?

I stopped by just to look at it with the loader and saw the return line from the front going in to the tank. It has a 3rd function on it as well. Could you put a Y fitting on it at the tank and run another line for the return I'm looking for?

Last question. What is the issue with the return going through the remote instead of going directly to the tank? As in what's slowing down the flow.

Any help is appreciated.

 

[K5lwq]

I don't have post driver and you will have to get a second opinion for sure.

I would think teeing or using a y on the tank line would work fine.

Going through a valve would not work because it needs to "dump" the fluid in order to fall fast enough to be effective. Any restrictions on the dump line will slow the cylinder retracting and defeat the effectiveness of the driver.

 

[JNA]

If done properly you could weld a weldolet on.

 

[4570Man]

Could you use a tank and a 12 volt pump that pumps the contents of the tank back to the tractor tank? That way the post driver dumps into the tank which the electric pump then empties back into the tractor?

 

[mrmikey]

Could you put a Y fitting on it at the tank and run another line for the return I'm looking for?

No reason not to, the easiest way out.

The plan was to run it to the fill hole on the tank

Not a good idea, the oil should enter the tank below the surface of the oil to prevent aeration and it should be as far as possible from the pickup to give it as much time as possible to cool down before it's pumped back thru the system..........Mike

 

[RickB]

I’ve never seen a post driver small enough that I’d want it on any Kubota B series tractor. That said, there are thousands of drivers that return oil through the fill port without aeration issues. A properly sized steel tube could be pressed into the port with some type of threaded connection at the top to accept a cap or the return from the driver as the case may be.

 

[maximus188]

Talked to my dealer this morning. For some reason they can't use a Y so he's going to put a 90 on the drain plug and use it. Hope it works.

 

[RickB]

Talked to my dealer this morning. For some reason they can't use a Y so he's going to put a 90 on the drain plug and use it. Hope it works.

On the DRAIN plug? Don’t hit it and knock it off.

 

[maximus188]

That was my first question to him. He said it won't be the lowest part but I still don't know about it hanging down there. From what he said, it might be the only way I can get it done.

 

[TractorGuy]

Wouldn't you need to connect to the power beyond connections? Feed the post driver valve from the pressure port and feed the return back to the tank port.

 

[K5lwq]

Wonder why they can't tie into a tank line? Guessing the tank line flows through a priority valve and still would restrict flow?

 

[RickB]

Wouldn't you need to connect to the power beyond connections? Feed the post driver valve from the pressure port and feed the return back to the tank port.

That would disable the 3 point hitch.

 

[Leejohn]

Why don't you buy another fill plug then drill and tap it????

 

[TractorGuy]

That would disable the 3 point hitch.

Guess the Kubota hydraulics are different than my old JD855 was. The power beyond didn't disable the 3pt on it that I'm aware of. I only used it one time to test a loader so I can't be sure of that. Pretty sure the power beyond is used for 3pt log splitters all the time.

All that said I don't know that a post driver on a tractor that small is going to work.

 

[bowtieboy77]

If the dealer is stumped on a simple hydraulic return location I would be very reluctant to let them continue the work. Running a return into a tee for the loader return should not be a problem. I do not like the idea of running a return through the drain plug as where does dirt and fine metals, and moisture go that gets in the oil when it is not caught by the filter? It settles to the bottom of the sump and where is the drain plug? At the bottem of the sump. So every time you use the post driver the return oil will stir up the oil in the bottom of the sump and cause the dirt, water, and metals to be suspended in the oil and flow through system.

 

[4570Man]

If the dealer is stumped on a simple hydraulic return location I would be very reluctant to let them continue the work. Running a return into a tee for the loader return should not be a problem. I do not like the idea of running a return through the drain plug as where does dirt and fine metals, and moisture go that gets in the oil when it is not caught by the filter? It settles to the bottom of the sump and where is the drain plug? At the bottem of the sump. So every time you use the post driver the return oil will stir up the oil in the bottom of the sump and cause the dirt, water, and metals to be suspended in the oil and flow through system.

I don’t think you’re fully understanding the problem. Go back and reread the thread.

 

[Xfaxman]

Talked to my dealer this morning. For some reason they can't use a Y so he's going to put a 90 on the drain plug and use it. Hope it works.

I don't think it will work. It won't let the return oil flow fast enough.

Also find out what size hose he is using. The bigger, the better.

 

[ak9]

If the dealer is stumped on a simple hydraulic return location I would be very reluctant to let them continue the work. Running a return into a tee for the loader return should not be a problem. I do not like the idea of running a return through the drain plug as where does dirt and fine metals, and moisture go that gets in the oil when it is not caught by the filter? It settles to the bottom of the sump and where is the drain plug? At the bottem of the sump. So every time you use the post driver the return oil will stir up the oil in the bottom of the sump and cause the dirt, water, and metals to be suspended in the oil and flow through system.

you could possibly priority flow divide and then plumb to tank

 

[sarnold1119]

you could possibly priority flow divide and then plumb to tank

I used a spare tank port on the fel for my third function on my 2538.

 

[Birdhunter1]

Could you use a tank and a 12 volt pump that pumps the contents of the tank back to the tractor tank? That way the post driver dumps into the tank which the electric pump then empties back into the tractor?

While a decent idea in thought it would not work as there is constant flow from the tractor to a valve on the driver and a constant flow of return oil to the tractor. You would have to have a pump in the tank equal in GPM and PSI to that of the tractor to keep up or else you would run the tractor dry.

I would also shy away from a return from your driver into the bottom if the tractor, it will get the stuff from the bottom, find a way to braze a nipple to the fill port and go that route.