| Cause | Remedy |
| There’s too little oil in the hydraulic system. | Fill up with oil and deaerate the system. |
| Although the tank is filled with oil air gets to hydraulic system anyway. | Find out in what place air gets sucked, remove the damage, fill up with oil. |
| There’s too big play in mesh between shaft and piston’s rack. | Regulate the mesh play. |
| Ball bearing’s screw and nut play. | Replace the skrew, nut or both together including balls. Play attention to choose balls from from the same selection group. |
HYDROSYSTEM
In the proper direction