Where's Jerry at? He seemed to have some knowledge on how this hydraulic circuit would work best. I guess I can just start connecting hoses and see what happens, but I would rather have some input from someone who has some knowledge on the subject.
In the media photos under brusher skidsteer ca there is a picture of a bush hog with the relief circuit. Under most motor driven use you will have the flow valve wide open and there must be a one way check valve in the excess port so oil can't come back in. If it could then I would think it would work as a loop though. The set-ups most discussed here just used a flow control which just restricts the flow and does not dump the excess. On both my backhoe and snow plow I have restrictor orifices but that backs the pressure up and you can hear the engine labor. Sorry I have no experience at all with that type of flow controller, I'd hook it up and try it at low speed to see what happens.
Thanks for replying Jerry.
Nevermind Jerry. I was able to find it. The poster created a second photo directory. It wasn't under their main directory (which is what I posted above).
I think the hose routing is plenty clear.
Thanks for the thread link OldMachinist. I'm going to drop Ken a line to see if maybe he can help me.
No response from Ken yet. Looks like he hasn't been around in a while.
I don't see where the problem is. I would not install the flow control you are going to because I cant forsee any reason for a relief at that point. Just run your hose to the motor and put a loop back from in output line on the motor to the input port with a one way check valve in it. If you are using something on this adapter that is not motor driven and you need to control flow then you put a simple adjustable flow fitting inline. If you have the control already that you mention then install it and run the relief line back to the reservoir or plumb it into the return line on the adaptor but remember sometimes you will be reversing the flow when operating a cylinder.
The flow control was purchased so I don't over spin my implements. If a rotary brush cutter is designed to be driven at 540 rpm and I spin it at 600 rpm, there is a potential for part failure. I'd rather not be 6 feet from a blade that gives out and comes flying off.
There are guys on the fluid power forum who probably can give you some informed answers on this. Let us know how it all works out.
Now I remember why I bought the flow control... I looked at the wrong specs on the motor. It is designed to run 600 rpm at 19.7 gpm. If I put 27 gpm through it, it will almost certainly fail.
Finished the frame and motor mount. I will try to go by the Bobcat place on Wednesday to get the hoses. Once that's done, and I verify functionality, I can build all the outer covers and paint everything so it looks nice.
Finally got all the fittings and hoses completed! The first thing I tried was the bush hog. It cuts "okay", but I was fighting a new issue on the Bobcat that seemed to be affecting the operation of the mower, so that was contributing to the lackluster performance.
Getting enough power from the aux circuit can be tough, hoefully you can get it corted out, looking forward to seeing pictures if it all setup.
