i have a 4060 with an 805 loader, i take the loader off to mow, when i go to put it back on the hoses on the loader side are under pressure and cant be hooked up, i have to crack a line and let the pressure out, to reconnect the hoses.nanyone know what is going on? when i take it off i move the joystick back and forth before disconnecting hoses to try to relieve pressure