Your Opinion

[NCMau]

I have two choices for connecting the hydraulic motor for the side mower deck project that I posted few days ago (Re: Check me out please).

Choice #1:
Connect to outlet of loader valve (there is no PB) > flow control > motor.
PTO pump 7.2 GPM, using loader hydraulics simultaneously.

Choice #2:
Connecting to selector valve from tractor onboard pump 4 GPM, using the back lift in pumping mode. (Or I can leave the pumping mode out and use the 4 GPM just for the motor).


The deck hydraulic motor is 10 GPM, which obviously will only receive part of it. The tractor RPM will be the same for both choices and so will the the amount of fluid available.
If the loader is in float position, will the pump use the same amount of fluid than if it would be operating up and down?

It seems like choice #1 would be best one but that's were I need an opinion.
I fully realize that the GPM available from the pump is limited but I am willing to try this this project especially since there is not too much cash involved, only time.

 

[J_J]

In float mode, fluid goes to tank.

Why not just use a PTO hyd pump to turn your hyd motor using a separate motor control spool valve or a variable lever control valve like this.

https://www.surpluscenter.com/item.asp?item=9-064-38&catname=hydraulic

https://www.surpluscenter.com/item.asp?item=9-7860&catname=hydraulic

 

[NCMau]

In float mode, fluid goes to tank.

Why not just use a PTO hyd pump to turn your hyd motor using a separate motor control spool valve or a variable lever control valve like this.

https://www.surpluscenter.com/item.asp?item=9-064-38&catname=hydraulic

https://www.surpluscenter.com/item.asp?item=9-7860&catname=hydraulic

J.J. this is what I have in mind. Will it work?

 

[J_J]

Look at this data.

http://www.surpluscenter.com/adspecs/AS9-064-50.pdf

If your only supply is from the FEL valve, then you will have to lock the lever down.

If you have PB on your valve, you could use that.

You should not use the return port.

If you want flow, get it from one of the work ports or PB.

 

[NCMau]

Thanks for the help J.J. I guess due to the limitation of my loader pump, the valve (with no PB), wrong type of Hyd motor, I am going to reflect on this project for while. I am not quitting, just regrouping.
I will have to scale everything down. Either a small deck or a small sickle bar.
I do like the idea using of using a variable control valve and using the tractor pump instead of the loader valve. I looked at the specs of this variable control valve and not being too familiar with hyd symbology, I question the symbol on the right side of the motor. I'm assuming that will end up in the tank.
Just to be sure, let me know if the attached pictorial will work.

 

[J_J]

You could also use one of these. Solenoid motor spool valve.

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

You will need a DO3 subplate to mount the valve. The ports on the subplate can handle full pressure.

Surplus Center - 1 STATION DO3 SUBPLATE OPEN CENTER

A switch would apply 12 v to the solenoid and allow instant full motor rpm.

The return port of your valve is not designed for full pressure.

However, some just run the OUT of the FEL valve to the next valve IN port.