First off let me say I did not have to replace any servo. On my eco7 . This is what I would do. Slide out the assembly the with the servos and motor on it than unhook the servo arm Turn on the TX Than plug in the helicopter battery so the servo can center it self-sounds like your servo is turned all of the way to the forward pitch. Be careful not to hit the sticks on the radio. After with the power on put the servo arm on the servo. The servo should be at center Unplug the battery. Put the helicopter back together. This is my opinion. You make want to ask Ikarus.