hydraulic motor hookup

[kennyd]

???
larry

OK , trencher-not auger. Same difference.

 

[kennyd]

I would be hooking to a standard rear hydraulic outlet used to power implements where the control levers operate one or the other outlet. I have a John Deere 4230 tractor or a International 886. Both are about 100 hp tractors

Then you have no problem. One hose to each QD, and operate the lever for control.

Be sure to let the handle back to neutral (center) slowly to alleviate the problem that Spyder mentioned.

What i was thinking that if you hooked up both hoses to the rear outlets on the tractor you wouldn't have a continuous flow through the pump and that it wouldn't turn unless you did.

You will have flow when the lever is moved from neutral. If the attachment has it's own valve (I am a bit unclear what you have exactly) then you can just bungie the handle open after the connections are made BUT you must make sure it has a OC (open center) valve on it so the fluid can freely flow through the valve when it's in neutral. You can verify that with air pressure.

 

[cowsrus]

The trencher attachment does not have its own valve, it will be totally operated by the tractor remote levers.

 

[J_J]

I believe a PB addition using a motor spool valve with detent, would be the best way to go. That way, yo;u will probably have some relief protection, and the ability to reverse if you ever use an auger. You could also use one of these.

Motor spool valve with detent and relief. Controls both directions

https://www.surpluscenter.com/item.asp?UID=2009100506094663&item=9-7497-30&catname=hydraulic

Variable speed valve. One way.

https://www.surpluscenter.com/item.asp?UID=2009100506094663&item=9-4169-10&catname=hydraulic