LX3310 Power Beyond Banjo Sizes???

[Old Machinist]

Anybody know the sizes of the two banjo connections for the power beyond tube on a LX3310?

I am planning a home brew third function and I need to figure out adaptor sizes for those connections. Push come to shove I will pull the tube and measure but if someone already has the info that would save me a step.

 

[TheOldHokie]

Anybody know the sizes of the two banjo connections for the power beyond tube on a LX3310?

I am planning a home brew third function and I need to figure out adaptor sizes for those connections. Push come to shove I will pull the tube and measure but if someone already has the info that would save me a step.

I dont know for a fact but those banjo bokts are also used in B and BX tractors and in a recent thread the valve PB port was identified as SAE-08 and tractor case as BSPP (G3/8 ??)

Dan

 

[Kennyd4110]

Not sure on the Kub's, but on the JD's the banjo bolts can be replaced with a -08 ORB adapter fitting. 3/8 BSPP is an obvious choice too as Dan wrote.

 

[Old Machinist]

Not sure on the Kub's, but on the JD's the banjo bolts can be replaced with a -08 ORB adapter fitting. 3/8 BSPP is an obvious choice too as Dan wrote.

I don't think he is saying those two sizes are interchangeable. What I read it to say is the PB port is -08 ORB and the return connection on top of the transmission case is BSP 3/8.

The diameter difference between the two is about 3mm and the pitch is 3 TPI difference also.

SAE thread ORB fitting size chart - Knowledge - Yuyao Jiayuan Hydraulic Fitting Factory

SAE thread ORB fitting size chart

www.jiayuanfitting.com

what thread is 3/8 BSPP at DuckDuckGo

DuckDuckGo. Privacy, Simplified.

duckduckgo.com

Those two fittings are the key element in making a DIY third function. I have looked at the manuals and Kubota parts to see if those are available separate and can't find them. The Land Pride 3rd function manual shows them and has part numbers but the numbers come up as not available.

You would think they would show up on Kubota parts but if they do I am overlooking them. Kubota would probably want as much as a aftermarket kit for the fittings anyway.

Land Pride, WR Long, and Summit are sourcing them somewhere.

 

[TheOldHokie]

I don't think he is saying those two sizes are interchangeable. What I read it to say is the PB port is -08 ORB and the return connection on top of the transmission case is BSP 3/8.

The diameter difference between the two is about 3mm and the pitch is 3 TPI difference also.

SAE thread ORB fitting size chart - Knowledge - Yuyao Jiayuan Hydraulic Fitting Factory

SAE thread ORB fitting size chart

www.jiayuanfitting.com

what thread is 3/8 BSPP at DuckDuckGo

DuckDuckGo. Privacy, Simplified.

duckduckgo.com

Those two fittings are the key element in making a DIY third function. I have looked at the manuals and Kubota parts to see if those are available separate and can't find them. The Land Pride 3rd function manual shows them and has part numbers but the numbers come up as not available.

You would think they would show up on Kubota parts but if they do I am overlooking them. Kubota would probably want as much as a aftermarket kit for the fittings anyway.

Land Pride, WR Long, and Summit are sourcing them somewhere.

You understood my meaning. Its not rocket science or expensive. Assuming your tractor is the same as the BX in the old thread:

The PB port on the loader valve gets a $3 straight SAE to male JIC adapter and a 90 degree JIC swivel end on the hose.

The port on the transmission case gets a BSPP to male JIC banjo and you reuse the OEM bolt.

Dan

 

[Old Machinist]

You understood my meaning. Its not rocket science or expensive. Assuming your tractor is the same as the BX in the old thread:

The PB port on the loader valve gets a $3 straight SAE to male JIC adapter and a 90 degree JIC swivel end on the hose.

View attachment 163686



The port on the transmission case gets a BSPP to male JIC banjo and you reuse the OEM bolt.

View attachment 163687
Dan

You wouldn't happen to have links to a source for both would you?

 

[TheOldHokie]

You wouldn't happen to have links to a source for both would you?

They are standard fittings available from most supply houses.

3059-06-06 | Steel BSPP Banjo Conversion Fittings | Shop at HoseandFittings.com for 3059-06-06 is a banjo fitting converted to a male JIC thread. A hose will easily attach to the JIC thread. Combinations available at HoseandFittings.com.

3059-06-06 is a banjo fitting converted to a male JIC thread. A hose will easily attach to the JIC thread. Combinations available at HoseandFittings.com.

shop.hoseandfittings.com

6400-08-08 | Male JIC by Male BOSS Hydraulic Adapter | Shop at HoseandFittings.com for 6400-08-08 Hydraulic Fitting is Set Up with Male JIC Thread 37° Flare Seal by Male SAE BOSS Thread O-ring Seal Fitting. Tons of Sizes Available For Sale!

6400-08-08 Hydraulic Fitting is Set Up with Male JIC Thread 37° Flare Seal by Male SAE BOSS Thread O-ring Seal Fitting. Tons of Sizes Available For Sale!

shop.hoseandfittings.com

 

[Kennyd4110]

I don't think he is saying those two sizes are interchangeable.

I never daid they were interchangeable. If you inferred that from my post, I apologize.

 

[TheOldHokie]

You wouldn't happen to have links to a source for both would you?

The links I provided are for a source of supply. You need to verify the exact fitting sizes you need before ordering.

Dan

 

[Old Machinist]

The links I provided are for a source of supply. You need to verify the exact fitting sizes you need before ordering.

Dan

I asked TTWT if the Kubota third function lines on his LX3310 were 3/8" or 1/2" and he said both the supply and return were 1/2".

When I searched the intraweb for hydraulic flow rates on 3/8" lines the answer came up over 20GPM. I think the LX is only 5.5 GPM. It seems to me that 3/8" should be plenty.

The plan and parts I have to make my third function will be stacking two solenoid valves that have -10, 5/8" ports. Mainly because I already had one laying around so I ordered a second to make the system a true third function. The valves have two sections but are only one function so I will plug one section on them. I have plenty of flow rate on the valves. Curious though they are only rated at 13 GPM no matter which size ports you order them with. I used the same valve with -08, 1/2" ports on my JD diverter. It has worked flawlessly but it is not inline with the power beyond channel.

 

[TheOldHokie]

I asked TTWT if the Kubota third function lines on his LX3310 were 3/8" or 1/2" and he said both the supply and return were 1/2".

When I searched the intraweb for hydraulic flow rates on 3/8" lines the answer came up over 20GPM. I think the LX is only 5.5 GPM. It seems to me that 3/8" should be plenty.

The plan and parts I have to make my third function will be stacking two solenoid valves that have -10, 5/8" ports. Mainly because I already had one laying around so I ordered a second to make the system a true third function. The valves have two sections but are only one function so I will plug one section on them. I have plenty of flow rate on the valves. Curious though they are only rated at 13 GPM no matter which size ports you order them with. I used the same valve with -08, 1/2" ports on my JD diverter. It has worked flawlessly but it is not inline with the power beyond channel.

TTWT is no authority on hydrsulic system design snd hose size does not tell you a thing about fitting and port sizes.

Kubota uses 3/8 hoses on their L series loaders and backhoes so they think its adequate and 1/4 handles 5.5 GPM on B series machines.

I dont see how you can or why you would want to stack two valves to get "true third function" on a loader. Please diagram that for me....

Dan

 

[Old Machinist]

The main reasons I am stacking two valves is the double acting valves sell for over $300 and I already had one of the single action valves. Kubota actually lists the valve for $1980 on their parts site. The whole kit is listing for over $1200 now. Pretty amazing they want more for the valve than they do for the kit. I will be surprised if I have over $300 in the whole thing.

These valves are made to be stackable so there shouldn't be an issue with stacking two for a dual function. They can also be purchased for well under a $100 each.

The single function opens both top ports so it will require two valves to make it a true third function. I will plug the unused ports but it would probably be okay with the plastic caps. These are typically used for diverter systems.

I will make a thread on it once it's finished.

 

[Old Machinist]

Oh, and I was looking at some install videos and found a WR Long install on an L series that had 3/8" lines and a Land Pride install on a BX that was using 1/4".

I will probably be fine with 3/8" but I haven't made a final decision.

 

[TheOldHokie]

The main reasons I am stacking two valves is the double acting valves sell for over $300 and I already had one of the single action valves. Kubota actually lists the valve for $1980 on their parts site. The whole kit is listing for over $1200 now. Pretty amazing they want more for the valve than they do for the kit. I will be surprised if I have over $300 in the whole thing.

These valves are made to be stackable so there shouldn't be an issue with stacking two for a dual function. They can also be purchased for well under a $100 each.

The single function opens both top ports so it will require two valves to make it a true third function. I will plug the unused ports but it would probably be okay with the plastic caps. These are typically used for diverter systems.

View attachment 163698

I will make a thread on it once it's finished.

Thats a diverter. Nothing "true third function" about it and stacking them is way more complicated, a plumbing nightmare. and more expensive than a simple DA valve.

Heres a 12V D03 valve

Chief D03 Solenoid Control Valve with DIN, 12VDC, 4 Way 3 Pos, Tandem, Series

This 4480 PSI, 16 GPM, 12VDC solenoid valves offer better flow charactersistcs and boost efficiency of your hydraulic system. Explore now!

www.baileyhydraulics.com

Heres the base plate

1 Valve Manifold Subplate, D03, Series, #8 SAE Ports

1 Valve Manifold Subplate, D03, Series, #8 SAE Ports Free Shipping!

summit-hydraulics.com

 

[Old Machinist]

Thats a diverter. Nothing "true third function" about it and stacking them is way more complicated, a plumbing nightmare. and more expensive than a simple DA valve.

Heres a 12V D03 valve

Chief D03 Solenoid Control Valve with DIN, 12VDC, 4 Way 3 Pos, Tandem, Series

This 4480 PSI, 16 GPM, 12VDC solenoid valves offer better flow charactersistcs and boost efficiency of your hydraulic system. Explore now!

www.baileyhydraulics.com

Heres the base plate

1 Valve Manifold Subplate, D03, Series, #8 SAE Ports

1 Valve Manifold Subplate, D03, Series, #8 SAE Ports Free Shipping!

summit-hydraulics.com

That's a good find on that valve and plate. I bought my first diverter from Bailey but it was more expensive back then than they are now. Had I found that in the beginning I would have gone that route but I already had one single valve and another ordered.

I don't see a huge difference in stacking those parts and two selector valves. Both setups will use two solenoids to achieve two functions. I will see how it works out.

 

[TheOldHokie]

That's a good find on that valve and plate. I bought my first diverter from Bailey but it was more expensive back then than they are now.

I don't see a huge difference in stacking those parts and two selector valves. Both setups will use two solenoids to achieve two functions. I will see how it works out.

1. Way more hoses
2. You still have two directional valves (functions) not four independent functions

Dan

 

[Old Machinist]

It will still be the same number of hoses. One section is going to be plugged. One hose from the PB pressure will go in the bottom of whichever section I decide to use. That will pass through both valves and one hose will go back to the return. One quick connect will exit out the top of each valve.

You will understand my thinking better when you see it assembled.

 

[TheOldHokie]

It will still be the same number of hoses. One section is going to be plugged. One hose from the PB pressure will go in the bottom of whichever section I decide to use. That will pass through both valves and one hose will go back to the return. One quick connect will exit out the top of each valve.

You will understand my thinking better when you see it assembled.

That pucture looks like a diverter. If so there is no directional control function, power beyond or neutral circuit.. Please diagram your circuit.

Dan

 

[Old Machinist]

That pucture looks like a diverter. If so there is no directional control function, power beyond or neutral circuit.. Please diagram your circuit.

Dan

The side ports are normally open so fluid just passes through them when the solenoid is not energized. The valves have four 5/16" holes and the ports align. All that is needed to stack them is placing o-rings in the port reliefs and bolting them together. Fluid will then pass through both valves. That is the neutral circuit in this case. When the solenoid on one valve is energized it will open the top port on that valve. When the solenoid on the other valve is energized it will open the other top port on that valve.

 

[TheOldHokie]

The side ports are normally open so fluid just passes through them when the solenoid is not energized. The valves have four 5/16" holes and the ports align. All that is needed to stack them is placing o-rings in the port reliefs and bolting them together. Fluid will then pass through both valves. That is the neutral circuit in this case. When the solenoid on one valve is energized it will open the top port on that valve. When the solenoid on the other valve is energized it will open the other top port on that valve.

It appears you are trying to build a single tandem center DA directional control valve from those two 6 port devices.

Where does the stack go in the neutral circuit of the tractor and how does it control a DA cylinder?

One more time - please diagram the circuit. Here is a start - your two device stack with two inlets, two outlets, and four top ports. How does it work to control a DA cylinder?

Dan