The actuator knob may be configured for {HEAD ~ rotational movement} between a lock position and {TAIL ~ an unlock position} 
between
The actuator knob may be configured for { HEAD ~ rotational movement } between a lock position and { TAIL ~ an unlock position }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL