said {TAIL ~ cover member} including a recessed portion enabling {HEAD ~ the cover member} to be manually moved to said first position 
said { TAIL ~ cover member } including a recessed portion enabling { HEAD ~ the cover member } to be manually moved to said first position
OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH