Uniform, trouble-free operation in areas with a high stone content or a rocky subsoil is not a contradiction in terms thanks to the reliable NOVA stone protection system. A selection of highly resilient materials combined with finely controllable hydraulics makes the system an indispensable tool for challenging conditions. Being able to work continuously while outputting high quality working results increases productivity and contributes to a higher area output.
The optimised design of the system brings significant advantages in the field. The integrated cylinder is protected against dirt and damage by the pressed mounting bracket. The components are configured to ensure a large trip clearance height of 42 cm and a sideways deviation of 20 cm. The NOVA element has a compact arc of movement to reduce the amount of weight transferred to the rear, and is positioned close to the frame.
With a single-acting connection, the pressure in the hydraulic system can be adjusted accurately and quickly. This results in a setting range of the triggering pressure between 1.200 kg and 1.500 kg. As the trip clearance increases, the force increases to ensure rapid soil re-entry. A central pressure control bank with a total of three or four hydraulic accumulators reliably absorbs high load peaks to protect the machine.
In addition to the NOVA element, a shear bolt is installed to prevent damage to the plough in the event of it colliding with large obstacles. This ensures that the plough bodies and beam are protected from excessive loads. The shear bolt is hardened to ensure clean shearing so that it is easy to replace.