Hey there, new to GTT, but I've been reading it for years and decided, since I've got an issue with my tractor, was hoping someone here could help me out. I recently added a single SCV to my 2720 by using the dealer installed power beyond (for a new backhoe). I used an open center SCV and connected the PB to it. I planned to use it on a rear blade with hydraulic angle. When I finished the install, everything worked great in the garage. When I got a chance to use it for an actual snowfall, again, it worked flawlessly. I used it for about an hour that morning. That evening, I got the tractor out of the garage and went to move more snow and after I lowered the blade with the 3PT, it would not raise back up. Nothing. Tried everything I could think of, hydraulic fluid level is fine, lowering drop speed was good. Still nothing. Finally, had to unhook the blade where it was at and got the tractor back in the garage. Looking it over in the garage, I can lift the 3PT arms up with my hands very easily, but the lever does nothing. Any thoughts?? Any help would be greatly appreciated.