Hi, I am fairly new to posting and the correct "ways" to post questions; but anyways, I am trying to figure out if I have to do any type of work to the existing valve system on the backhoe that goes to the operating levers. I have hooked into one set of remotes and "opened" my hydraulics to allow fluid to flow into the BH valve. When I do this the system will not allow fluid back to the tractor and dead-ends. After blowing one of the lines I new something was not quite right, so before I go any further I was looking for help and new by browsing the vast knowledge here on the net I would get some great advice. Thanks. When I hook up my Split-Fire woodsplitter in the same maner the fluid flows back and forth properly. By the way, the Split-Fire is one heck of a machine! I modified mine by adding 4" to the top and replacing the far end with a heavier end with "wings" to aid in the spliting function. I am able to split up to 4 cords per hour with the help of two other people.