I have two corroded quick release couplers in two remotes that are at the rear of my Kubota RTV. They're currently in use for the hydraulic plow setup, so my dump bed doesn't work. I want to remove the plow, I don't need it so I'll sell it, but I'm not only wondering how to unstick those couplers, but what configuration I need to get that dump working again. I was told all I had to do was unplug the remotes and fluid would return to the dump. Thanks for any help.