In {TAIL ~ one position}, {HEAD ~ the motor circuit} uses only the poles 47a, 47c 
In { TAIL ~ one position } , { HEAD ~ the motor circuit } uses only the poles 47a , 47c
REL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH