The guide disc is guided by the axial bridges and can be displaced axially via {TAIL ~ a positioning unit} by a piston located inside {HEAD ~ the hollow shaft} 
The guide disc is guided by the axial bridges and can be displaced axially via { TAIL ~ a positioning unit } by a piston located inside { HEAD ~ the hollow shaft }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD