determining {HEAD ~ means} for determining a criterial position of the ejector pins where the detected elastic force of the springs is equivalent to the retaining force of {TAIL ~ the brake means}; and 
determining { HEAD ~ means } for determining a criterial position of the ejector pins where the detected elastic force of the springs is equivalent to the retaining force of { TAIL ~ the brake means } ; and
OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH