By an adjustment of {TAIL ~ the presetting device}, the press elements are brought into {HEAD ~ a position} with a reference degree of pressing 
By an adjustment of { TAIL ~ the presetting device } , the press elements are brought into { HEAD ~ a position } with a reference degree of pressing
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH