It is preferred that manipulation of the lever 658 causes engagement or release of {HEAD ~ the hook} 656 of {TAIL ~ the latching mechanism} 654 
of
It is preferred that manipulation of the lever 658 causes engagement or release of { HEAD ~ the hook } 656 of { TAIL ~ the latching mechanism } 654
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH