Using these Rothenberger Romax Compact III Press Jaws is quite straightforward. First, make sure your press machine has an axial thrust of 19 kN as these jaws are designed for such machines. Then, attach the press jaws to the machine. You can easily open the press jaws with just one finger thanks to the 3 - bolt synchronized mechanism. Place the metal or plastic fitting you want to press between the jaws and start the pressing process. As for maintenance, keep the press jaws clean after each use to prevent debris from affecting the precision of the contours. The long - term corrosion protection helps a lot, but it's still a good idea to store them in a dry place. Also, be aware that the Dura lazr tec treatment and partial laser hardening give the jaws high hardness at impact areas, so avoid using excessive force that could potentially damage them. If you notice any significant wear, it might be time to replace the jaws to ensure reliable pressings.