{HEAD ~ A momentary push button switch} 73 is placed in axial alignment with {TAIL ~ the drivetrain assembly} 71 
{ HEAD ~ A momentary push button switch } 73 is placed in axial alignment with { TAIL ~ the drivetrain assembly } 71
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH