2011-03-04 Changes in pump kit 32204 incl. Appendix
2011-03-14 New circuit card incl. Appendix
2011-04-14 Electric and hydraulic diagram for sliders
2011-04-28 New hydraulic unit on Z 10,15,20 models
2011-05-19 Assembly of bolt changed from inside to outside on Z 10,15,20
2011-09-16 New design for cylinders and piston rods
2011-10-12 New valves and magnets
2011-10-17 Rubber bellows introduced on ZHD 2500 models
2011-11-10 Rubber bellows introduced on Z 45-75 models
