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