B3300SU with PB BH and rear remotes?

[CDN Farm Boy]

I have a Kubota B3300SU with 504 FEL and BH77 backhoe running off the PB port from the loader. I want to add at least 4 sets of remotes, 5 would be better. I'd like 2 pair run to the loader - grapple or snow plow and hydraulic QA bucket. The other 3 would be used for hydraulic thumb when the BH is mounted or anything I felt like without the BH (toplink, snow blower chute rotation and deflector for starters)

Can I simply mount an open center valve block (to control the additional QDs) in-line in the PB loop, and have it work with or without the BH attached, without causing any long-term issues?

If I could find a decent weather-proof joystick with dual momentary switch capabilities, I'd consider diverter valves off the bucket curl for the front 2 pair.
Anyone got a link for one?

Thanks

 

[CDN Farm Boy]

65 views and no response? Anyone care to share an opinion?

 

[J_J]

You can use a stacked valve with as many spools as you need.

You could run the BH off one of the remote detent spool.

I believe MtnViewRanch has the T-N-T setup, and a diverter valve set you might can use.

Boat switches are usually water proof.

 

[MtnViewRanch]

Just my opinion, but here goes.

I would use 2 diverters for the loader with the 2 switches in a new handle on the loader joystick. About $800 by the time you are all done with everything.

For your back hoe thumb, I would use a diverter for that also, using one of the back hoe valves and have the switch mounted on the back hoe control lever. I don't think that you want to reach around in back of you to be pulling on a lever to operate the thumb. About $500 to do this.

For your rear remotes, get a stacking valve setup. That way it is easy to add more if you end up needing them. I would get a minimum of 1 with the float function, and probably 2. If you put in a 3 valve set, then you would have the 2 with float to use with the "TnT" and have the 3rd with a detent so that you can use that valve for your back hoe, a log splitter, whatever you have that needs a constant flow. About $600

Top & Tilt kit, $530

You know that shipping is going to cost some $$$$ with you being up in Canada, $200-$300 depending on how this is all done.

So a guesstimate of $2700 if you were to get everything from me. This is only a guess off of the top of my head. I have no doubt that you can spend some time and do some shopping and save yourself a few $$$.

Good luck.

 

[CDN Farm Boy]

Thanks guys. Would it be better (or make any difference) to connect the BH in the PB loop or simply take the convenience of plugging in to one of the remotes?

 

[Guesseral]

Here is a link for a diverter valve and switch.

Tractor Electric Diverter Valves

 

[J_J]

If you use the PB from the FEL, you will not have to use a detent valve.

You will still need a loop from the FEL hose to the remote valve.

Did you look at this valve as a diverter valve?

I really don't understand why more people don't use this valve instead of the $500 to $800 setup.

This valve and a waterproof switch and basic wiring , and hoses is all that is required.

http://www.surpluscenter.com/item.asp?item=9-7852&catname=hydraulic

 

[CDN Farm Boy]

Ya, saw that one. It's $230 up here Same one as in the kit Guesseral linked but their price is out to lunch -- no way a switch is worth $250

So it sounds like the best way to do things is:
1) diverter valves on the loader curl circuit for the bucket to power grapple
2) diverter valve on the backhoe bucket to power BH thumb
3) use the existing PB circuit that now powers the BH to power the new open center valve block for the new rear remotes
4) have one of the new remotes with detent to power the BH

Did I get this right?

 

[J_J]

Looks correct to me. Good luck

 

[Guesseral]

Ya, saw that one. It's $230 up here Same one as in the kit Guesseral linked but their price is out to lunch -- no way a switch is worth $250

So it sounds like the best way to do things is:
1) diverter valves on the loader curl circuit for the bucket to power grapple
2) diverter valve on the backhoe bucket to power BH thumb
3) use the existing PB circuit that now powers the BH to power the new open center valve block for the new rear remotes
4) have one of the new remotes with detent to power the BH

Did I get this right?

Yea I thought the switch was way over priced also. There are also some o-ring hose fittings that come with kit but it is still expensive. If you order the other valve order the fittings for your hose connections also at the same time they seem to be way less money from surplus center, I am looking at the same valve and I was planning on getting 90 degree fittings when I order the valve. If you are going to put a set of couplers at the front of the loader for a grapple or some other skidsteer type of equipment surplus also has the flat front connectors that seem standard on that type of equipment.

 

[J_J]

You can save more on 1/4 in hose and fittings for the grapple , and will work just fine.

 

[CDN Farm Boy]

Thanks for the help guys, much appreciated.

 

[CDN Farm Boy]

Ran into a snag today. Discovered that the 3pt hitch already runs off the PB port from the loader valve. Apparently the 3pt hitch control lever needs to be locked in the down position to use anything in the PB loop, like my backhoe. Not a big deal with running the backhoe but obviously that won't work if I want to use the PB loop to supply the new rear remotes for use with anything other than the backhoe. Kubota wants $800 for the kit to add one valve and I still want 3.

How do I solve this problem?

 

[J_J]

Why don't you use the PB from the FEL, or hyd block and run it to a 4 spool remote valve and then run it to the 3pt.

To run the BH, install a QD on the PB hose going to the remote and use that to power the BH.

https://www.surpluscenter.com/item.asp?item=9-7977&catname=hydraulic

https://www.surpluscenter.com/item.asp?item=9-7978&catname=hydraulic

The 3pt is the last valve in the hyd series flow path, and should have nothing to do with the BH.


Can you outline your flow path from pump to 3pt?

 

[CDN Farm Boy]

Dealer is telling me that if I have the 3ph control in the neutral position, hyd fluid will be going over the relief while using the BH.

Hydraulic diagram from my WSM:


Dealer was kind enough to send me the install instructions for the Kubota remote valve kit which if I'm reading it right goes like this:
- PB from loader valve to in port of new valve
- Return port from new valve T into return of loader valve
- PB from new valve to 3ph - Indicates that I'd still use this line as I do now for the BH but one of the new sets with detent would be much simplier

I guess the main difference is the return line from the new valve and using the PB to the 3ph rather than the return line

 

[CDN Farm Boy]

Woo Hoo! The diagram worked!

 

[J_J]

When you are using the BH, is the 3pt functional?

When the 3pt is in neutral, the fluid if available and is flowing through the valve to tank,

The 3pt relief only comes into play when the 3pt cyl is overloaded, or you keep it in the raised position.

 

[CDN Farm Boy]

When you are using the BH, is the 3pt functional?

Never actually tried to run both at same time but the BH seems to work fine with the 3pt lever in neutral and I have moved the 3pt with the BH connected just to adjust the position of the arms.

When the 3pt is in neutral, the fluid if available and is flowing through the valve to tank,

The 3pt relief only comes into play when the 3pt cyl is overloaded, or you keep it in the raised position.

That's what I thought. If I read the diagram right, the 3pt (item # 3 - hydraulic control valve) looks like an open center valve so it should have free flow in neutral.

The BH valve is open center.
The Kubota additional valve is closed center with PB

The operator manual states (which seems to contradict what the hyd diagrams show):
- Backhoe must be removed when using any rear remote valve, 3-point hitch, or any hydraulic component that is downstream of the backhoe valve. Failure to follow this instruction will result in valve damage.
- When backhoe is attached, make sure to properly secure the hydraulic control lever in the "DOWN" locked position. Accidental operation of the hydraulic control lever will result in valve damage.

 

[J_J]

There is something wrong here.

You can't mix valves from the different hyd systems.

Closed center valves do not have PB as the valves are in parallel.

 

[CDN Farm Boy]

I'm glad it's not just me that it's not making sense to.

From the Kubota rear remote install instructions:
Note part #1 3-Position 4-Way Normally Closed Valve Section and and part #3 Outlet Section with Power Beyond.


Hyd diagram of valve:


The complete install manual is a 13 page pdf