Unfortunately, I traded the
B7100 years ago so I have no pictures, but this is the valve I used:
Prince Log Splitter Detent Valve | Detent Valves| Northern Tool + Equipment
The cost has gone up quite a bit since then. You might want to shop around for a better price. You can get the QD's at your dealer or any farm store like Tractor Supply.
It required quite a bit of cobbling but basically, I made a mount from a piece of angle iron and bolted it to the FEL valve bracket. I plumbed the new valve in series with the existing FEL valve in the tractor hyd. circuit. I installed the QD's on the new valve output ports and connected hoses to the wood splitter.
In my case, I wanted to use the new valve for the power angle on a FEL plow so I mounted it on the tractor. If your splitter is the only hydraulic implement you plan to use, you can mount the valve on the splitter instead. If it already has a valve, just install the QD's on the tractor FEL valve and connect the hoses.
A word of caution here. I did some research before doing this to make sure no damage would result. I'm not familiar with the
B7500 though and can't be sure this will work on your tractor. Perhaps another poster can offer more advice.
I should also add that although this setup worked, the splitter was a bit slow. I don't remember the hydraulic flow rate of the
B7100 but it took some time for the 5" bore X 24" stroke splitter cylinder to split a log.