Pressure medium cylinder and method for moving toothed bar and work machine

A pressure medium cylinder configured to move a toothed bar, the pressure medium cylinder comprising the toothed bar on at least one side of which a toothing is formed, wherein:

• inside the toothed bar, a cavity is formed, extending to at least one end of the toothed bar,
• the pressure medium cylinder further comprises a longitudinal structure, wherein the longitudinal structure and the toothed bar are provided movably in relation to each other, and the longitudinal structure is provided at least partly inside said cavity;
• there is at each time arranged, on the area of the toothed bar end, an end chamber which is configured to form a work chamber;
• and
• the toothed bar and the longitudinal structure are provided in a sealed manner in relation to each other so that the toothed bar and longitudinal structure are movable in relation to each other by the effect of a pressure medium when a pressure medium led to the work chamber causes the toothed bar to move in relation to the longitudinal structure.