The pivot arm swings {TAIL ~ the tire} into {HEAD ~ a position} over the wheel wherein a sector of the tire beads are laterally opposite the radial perimeter surface of the wheel 
The pivot arm swings { TAIL ~ the tire } into { HEAD ~ a position } over the wheel wherein a sector of the tire beads are laterally opposite the radial perimeter surface of the wheel
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH