This lengthy but I wanted to cover the problem the best I could.
It has a deluxe remote control. Four remote plugin's that run the front loader. I added an open center spool valve to operate a double acting cylinder. In front of the seat on the transmission is a valve not control just a block, it had a line going to the remote spool where the plugin's are. Then out of that block and back into the tranny. I ran this line threw my added open center spool and back to the plugin's. Front loader still works fine. My added spool valve has no pressure output. There is a 1/4 inch line that goes from the the block where the 4 plugin's are and goes to the valve block on the tranny threw a check valve. I'am not sure whats going on. It looks like I have no pressure till you pull one of the front loaders levers and some how the check valve opens up or closes that lets flow into the pressure line. Question is if I remove the 1/4 inch check valve will that give me a constant flow in the pressure line. I hope someone out there knows how this 1/4 line works with a check valve in it works. Thanks for any help.