Device for {HEAD ~ self adjusting} and method for arranging {TAIL ~ an impulse transmitter} in relation to a rotor 
Device for { HEAD ~ self adjusting } and method for arranging { TAIL ~ an impulse transmitter } in relation to a rotor
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH