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