3rd Function for L45

[avc8130]

I recently traded my L39 for an L45. I had installed a Kubota 3rd function kit on my L39. I was lucky enough to find it on Ebay for ~$500. Now I am looking to install a kit on my L45. The Kubota kit is $885. The WR Long kit is $837 from Everything Attachments. It looks like the hydraulic flow is ~12 gpm.

Can I piece together a kit cheaper?

Valve
Handle/switch
Hoses
Fittings

ac

 

[Gordon Gould]

I would think so. I did my L3010 for $275. I did not use and electric solenoid hydraulic valve w/ a switch in the loader lever though. I used a standard spool valve and had a separate control lever for the grapple valve.

http://www.tractorbynet.com/forums/.../262400-3rd-function-valve-2.html#post3062988

 

[avc8130]

I would think so. I did my L3010 for $275. I did not use and electric solenoid hydraulic valve w/ a switch in the loader lever though. I used a standard spool valve and had a separate control lever for the grapple valve.

http://www.tractorbynet.com/forums/.../262400-3rd-function-valve-2.html#post3062988

Hmm...I wonder how I could mount that. The L45 uses a cable driven FEL valve with the control lever mounted to the right of the operator. Not quite the same setup as the removable FEL and loader valve you have.

I had the electric over hydraulic on my L39...I'm not sure I would want a 2nd lever.

ac

 

[MtnViewRanch]

Do you have to have the true 3rd function? Diverter valves are less $$$ and easier to install.

 

[avc8130]

Do you have to have the true 3rd function? Diverter valves are less $$$ and easier to install.

Can I run a hydraulic auger off of a diverter?

ac

 

[MtnViewRanch]

Can I run a hydraulic auger off of a diverter?

ac

Yes sir, just need to be sure to have a big enough flow diverter, no different than you need to be sure to have a big enough 3rd function valve and you would not use a momentary switch, but a maintained type switch. Same applies to both types of valves.

 

[avc8130]

I think I want to stick with a true 3rd function like I had on my L39. The more I think about it, the more I liked the way it worked.

Any suggestions for the electronic solenoid valve? I think it needs to be double-acting with an open center.

Do I need 1/2" or 3/8" lines?

ac

 

[Gordon Gould]

I would use the sizes you have on the tractor now. My L3010 had 3/8" hoses and 1/2" (SAE 8) fittings. So that is what I used. My flow is only 6.8 gpm. I used an 8 gpm valve that was on special at Surplus Center.

 

[MtnViewRanch]

I think I want to stick with a true 3rd function like I had on my L39. The more I think about it, the more I liked the way it worked.

Any suggestions for the electronic solenoid valve? I think it needs to be double-acting with an open center.

Do I need 1/2" or 3/8" lines?

ac

I would use 1/2" hose for the 3 main lines and 3/8" for your 2 work lines.

 

[avc8130]

I think I am going to use these for valves:

McMaster-Carr
Valve:
McMaster-Carr
Base:
McMaster-Carr

Will that work out?

Next I need to figure out the hoses and fittings.

ac

 

[J_J]

That valve and base should work if you select the valve based on pump flow, and the flow will be instant and full on. No feather.

You need to know the implement GPM in order to get the correct valve, or equal to the pump GPM.

If you add the valve in series to the remote hyd circuit, your hyd flow is about 11.8 GPM

 

[avc8130]

That valve and base should work if you select the valve based on pump flow, and the flow will be instant and full on. No feather.

You need to know the implement GPM in order to get the correct valve, or equal to the pump GPM.

If you add the valve in series to the remote hyd circuit, your hyd flow is about 11.8 GPM

I never had feather with the L39 3rd function and it never seemed to be a problem.

I want to equal the pump GPM. I do have an auger I want to run off the function, so max flow is desired.

The thing I am trying to remember:
Does the 3rd function valve go inline between the FEL valve and the 3 point hitch?

Pull the hose from the FEL to the 3-point hitch. New hose goes from FEL to 3rd function valve, then new hose from 3rd function valve to 3-point hitch?

ac

 

[J_J]

Any where in the implement hyd circuit would work, but remember that once you activate the 3ed function, nothing after that valve will have any fluid..
The OC solenoid will work with a slow speed motor, and will instantly stop the motor with power off, as work ports are locked.

Any other hyd motor with a large spinning mass such as a bush hog should use the solenoid motor spool, or a manual valve like this, which is variable speed.

This is a flow control valve with relief to vary the speed of a hyd motor.

Surplus Center - 1/2 NPT HYD FLOW CONTROL VALVE W/RELIEF RDRS150-16

If you are going to operate an auger or any hyd motor, you should use a motor spool valve like this.

Surplus Center - 12 VDC 10 GPM OC MOTOR SPOOL SOLENOID VALVE

 

[avc8130]

Any where in the implement hyd circuit would work, but remember that once you activate the 3ed function, nothing after that valve will have any fluid..
The OC solenoid will work with a slow speed motor, and will instantly stop the motor with power off, as work ports are locked.

Any other hyd motor with a large spinning mass such as a bush hog should use the solenoid motor spool, or a manual valve like this, which is variable speed.

This is a flow control valve with relief to vary the speed of a hyd motor.

Surplus Center - 1/2 NPT HYD FLOW CONTROL VALVE W/RELIEF RDRS150-16

If you are going to operate an auger or any hyd motor, you should use a motor spool valve like this.

Surplus Center - 12 VDC 10 GPM OC MOTOR SPOOL SOLENOID VALVE

Thank you so much for always chiming in with some expert knowledge! I pretty much post in this section hoping you will join the thread.

Do they offer a version of this valve that will handle my 11.8 gpm?

Surplus Center - 12 VDC 10 GPM OC MOTOR SPOOL SOLENOID VALVE

 

[J_J]

A couple of GPM difference will not make much difference, as you probably will not want to run your tractor at max engine rpm.

GPM will determine the speed of the direct drive hyd auger.

The speed of the auger is determined by the displacement of the motor, the larger the displacement, the slower the auger will run. You can also vary engine rpm also.

If you want to use solenoid valve, this one is very close at 11.5 GPM and will lock in detent with momentary power.

Surplus Center - 12 VDC 11.5 GPM MOTOR REVERSING VALVE

The torque developed by the hyd motor will vary by the load on the hyd motor. If you have a hyd gage you can see when the hyd motor is working at full potential.

 

[avc8130]

A couple of GPM difference will not make much difference, as you probably will not want to run your tractor at max engine rpm.

GPM will determine the speed of the direct drive hyd auger.

The speed of the auger is determined by the displacement of the motor, the larger the displacement, the slower the auger will run. You can also vary engine rpm also.

If you want to use solenoid valve, this one is very close at 11.5 GPM and will lock in detent with momentary power.

Surplus Center - 12 VDC 11.5 GPM MOTOR REVERSING VALVE

The torque developed by the hyd motor will vary by the load on the hyd motor. If you have a hyd gage you can see when the hyd motor is working at full potential.

I saw that valve. I didn't quite understand what was meant by "no neutral position".

Is there a sticky or decent reference I could read to try to learn all of the terms?

ac

 

[J_J]

Detent means the spool stays in place and not return to neutral. Otherwise, when you click the valve button, it activates the solenoid and locks the spool,in fwd or rev for hyd motor operation.

 

[avc8130]

Detent means the spool stays in place and not return to neutral. Otherwise, when you click the valve button, it activates the solenoid and locks the spool,in fwd or rev for hyd motor operation.

I can't lie. I don't understand how that would work in this application. I thought I needed something where everything was open to tank normally?

ac

 

[J_J]

You use an open center spool with a hyd motor, but you have to slow the motor down so it will not act as a pump when you go to neutral.

A motor spool lets the hyd motor wind down when you go to neutral.

 

[avc8130]

You use an open center spool with a hyd motor, but you have to slow the motor down so it will not act as a pump when you go to neutral.

A motor spool lets the hyd motor wind down when you go to neutral.

Ok, so motor spool is very important for my intended use. Will that be "ok" with running normal cylinders on the grapple?

Does Surplus Center sell any joysticks?

ac