From JBM we want to show you how to assemble step by step your TELESCOPING HYDRAULIC JACK 500KGS ref.54001, so you can use it quickly and correctly.

All about the 500KGS pit jack on the JBM website:
https://jbmcamp.com/en/herramientas-hidraulicas/gatos-hidraulicos/gato-de-foso-500kgs.html