adding a hydraulic top link and hydraulic rear blade Kubota B3000

[blenderbender]

I'm somewhat new at tractors and hydraulics so perhaps this is a dumb question, but if I wanted to add a hydraulic top link and also upgrade to a hydraulic rear blade on my Kubota B3000, wouldn't it be a simple matter of re-plumbing a couple wyes into my existing rear remotes?

I figure if I have my top link adjusted the way I need it, then I'd just disconnect it's hoses and then the rear blade would be the only thing being operated. I kind of poked around for fittings but haven't been able to find anything so far. If this is doable, or if I'm approaching it in a dumbass manner, please consider advising me

thanks... Gary

 

[J_J]

No Y's or T's.

Fluid has to go through all valves in series.

If you have a hyd block, you probably have a line going back to the 3pt and you can use that.

You do have a hyd block and if you have a loader, the hoses come and go from the hyd block.

If you have no loader, then the hyd block is capped off, and you can remove the cap and use those port for the remote valve.

You need a two or three spool valve with PB.

 

[blenderbender]

JJ.... thanks for a quick reply, gotta say I don't understand much of it though..... told ya I was new at this. But based on what I did understand, here's the way I see it. My rear remote(s) have a supply and return, correct? If I tee off of these with quick disconnects, and only have one implement plugged in at any given time, isn't that in effect "no tees"?

 

[J_J]

Is there a valve that controls your remote outlets?

 

[blenderbender]

Yes, there is.

 

[J_J]

Yes, your one spool remote can operate the top link cyl for the 3pt.

Why would you disconnect the hoses on the top cyl?

They have to be connected to lock the cyl in place.

 

[ovrszd]

You can use T's or Y's or whatever else you want to rig up. But you create the necessity of coupling/uncoupling hoses. If you leave both circuits coupled the tractor will simply split the flow and operate both functions at once.

I've heard of guys on here T'ing their FEL lines to the rear and adding couplers back there. They could then unplug the FEL and have dual functions at the rear of the tractor. Or unplug the rear attachments and have FEL functions. But never both.

 

[s219]

I wouldn't expect the top link to stay put when disconnected. You lose a small amount of fluid every time you disconnect, and that will be enough to probably let the top link wiggle a bit.

 

[blenderbender]

JJ... I would disconnect at the tee (yet to be installed) off the rear remotes quick connects. If everything had quick connects wouldn't that lock cylinder in place? Duh.... I think a light just went off..... if all I'm doing is connecting/disconnecting one or the other, I don't even need a tee. Not sure what I was thinking.

 

[blenderbender]

Richard... yer right, as I realized. I don't even need a tee at all.

 

[blenderbender]

I wouldn't expect the top link to stay put when disconnected. You lose a small amount of fluid every time you disconnect, and that will be enough to probably let the top link wiggle a bit.

Hadn't considered this at all either. I wouldn't have thought it would be significant.

Thanks all for your considerations!

 

[ovrszd]

Last consideration. If you uncouple any hydraulic system with a load on it, and then try to recouple with continued load, you'll have a problem. To switch back and forth by using couplers you must have a way to neutralize the load. Otherwise you are going to be cussing your system a LOT.

 

[travlitt]

Why not add a 12 volt electric diverter valve, plug in both cylinder hoses and control which cylinder is active with the electric valve.

 

[blenderbender]

Richard... re: "To switch back and forth by using couplers you must have a way to neutralize the load." Perhaps I don't understand 'when there is a load on it'.... if an implement, such as rear blade, is on the ground with nothing applying pressure to the blade in any direction, wouldn't that cylinder be considered unloaded?

thanks.... Gary

 

[ovrszd]

Richard... re: "To switch back and forth by using couplers you must have a way to neutralize the load." Perhaps I don't understand 'when there is a load on it'.... if an implement, such as rear blade, is on the ground with nothing applying pressure to the blade in any direction, wouldn't that cylinder be considered unloaded?

thanks.... Gary

Yes it would. But if you uncouple the hydraulic top link for example, and then try to recouple it with the blade raised on the 3pt you will not be able to do it. You'll always have to find a neutral spot to relieve that load. You'll quickly find that isn't as easy as it sounds.

Travlitt's idea is a better situation but costs money.

 

[blenderbender]

Why not add a 12 volt electric diverter valve, plug in both cylinder hoses and control which cylinder is active with the electric valve.

Thanks... I've just discovered there is such a thing and based on what little I know, this seems to be the way to go.

 

[SSdoxie]

A diverter/selector valve works great for this versus cost of adding second remote kit. Either electric as travlitt mentioned or simple manual control and mount it where it can be easily reached from the seat and from rear of the tractor.

 

[Xfaxman]

Yep, like one of these: Surplus Center

Several styles to choose from: https://www.google.com/search?hl=en......1ac.1.58.img..0.1.838.vcZuZKCUIG4#imgdii=_

 

[blenderbender]

Thanks! You guys are GREAT :thumbsup: I'm beginning to get the picture :banghead:

 

[blenderbender]

Yep, like one of these: Surplus Center

View attachment 399892

Several styles to choose from: https://www.google.com/search?hl=en......1ac.1.58.img..0.1.838.vcZuZKCUIG4#imgdii=_

Thought of a question regarding these manual diverters. Are they designed to work under load in a live circuit or must the circuits be neutralized before toggling between implements?