Hello Guest, you do not yet have the necessary rights to see the contents of our FAQ articles. Register in our forum, briefly introduce yourself and your Zetor in words and pictures and actively participate in discussions in the forum, then you will automatically receive access to the specialist articles in the FAQ.
You are going to have to bring it to you local hydraulic cylinder repair shop anyway to get the new seals.
I loosen the end cap (normally screw on) and the slacken off the big nut that holds it all together. The seals, spacers and packers can then be easily removed and handed in to get new ones of the correct size.