A tool includes a locator having a center aligned with a rotor axis whendisposed over the valve.The locator has a first dimension approximately perpendicular with the rotoraxis. A wall of thelocator forms a volume to allow an adjustor to be disposed therein. Theadjustor fits within thewall and has a magnet having a magnetic axis to unlock the rotor. Anadjustable outer wall has afirst position dimension permitting the adjustor to rotate about the center ofthe locator andaligning the magnetic axis with the center. The adjustable outer wall has asecond positiondimension less than the first dimension and the first position dimension. Theadjustor can movelateral, rotational, and orbital in the locator misaligning the magnetic axiswith the center.Misaligning the magnetic and rotor axes unlocks the rotors and the magnetmaintains theunlocked state even when the axes are misaligned.
