Problem with Tilt Rotor setup

Hi everyone I’m searching for how to do the tilt rotor setup (I refer to the guide I can’t understand the guide… Reading it what I’ve understood is I’ve to power servo on by connecting them to the servo rail (with a BEC for the powering); then I’ve to set the right angle but just how can I do such a thing with the servo powered? It won’t move! Besides, when the guide says that I’ve to set manual mode to see servos tilt, nothing happens. I’ve to say I’m using Navio2 and I’ve put the tilt servos in pins 2 and 6 and I’ve set 75 e 76 values for servo2 and servo6 function on Mission Planner. Do I’ve done it correctly? Thanks a lot to whom willl give me a hand!!!