The tray 20 is moved away from the side wall 42 to enable {HEAD ~ the mounting protrusions} 421 to be separated from {TAIL ~ the mounting openings} 221 
The tray 20 is moved away from the side wall 42 to enable { HEAD ~ the mounting protrusions } 421 to be separated from { TAIL ~ the mounting openings } 221
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH