Work Depth Adjustment; In Work; How To Work - breviglieri mekfarmer K 270 Manuel D'utilisation Et D'entretien

operation of the structure above the machine. Perform this operation empty, twice or three times, making sure everything
is working properly and that there are no mechanical or hydraulic impediments. Before performing these operations, make
sure no one is standing near the machine. Seeder coupling drop is spontaneous if there is no pressure in the system because
the cylinder is single acting. It features a stop valve in the event of sudden breakage of the pipe.
KEY Fig. 11 (Hydraulic diagram for coupling the seeder to an hydraulic cylinder)
1. Seeder coupling control cylinder
2. Stop valve
3. 3/8" gas hydraulic pipe
4. Protection sheath

4.6 WORK DEPTH ADJUSTMENT

Fig. 12
Harrow work depth adjustment can be made in various ways:
1. By means of side pins (standard - Fig. 12). This solution not only permits depth adjustment, but also having a floating rear
roller (ideal when there are stones).
2. With screw jacks (Fig. 13). This solution requires two screw jacks at the ends of the machine and adjustable by means of a
graduated rod. When the roller is raised, working depth increases. When the roller is lowered, working depth decreases.
3. With hydraulic cylinders (Fig. 14). This solution for adjusting work depth with hydraulic control cylinders can be implemented
from the driving seat, by means of the hydraulic mechanism which controls the two hydraulic cylinders that regulate the rear
rollers (8 Fig. 1) thus determining the work depth. Both hydraulic cylinders feature stop valves.

4.7 IN WORK

Begin work with the PTO at full rate. Gradually dig the implement into the ground. Do not depress the accelerator pedal too much
with the PTO engaged. To break up the soil to the required degree, you must consider several factors, i.e.:
▪
the nature of the soil (medium consistency, sandy, clayey, etc.)
▪
the work depth
▪
the ground speed of the tractor
▪
optimum machine adjustment
Soil crumbling is obtained at a low tractor ground speed, with the rear bar lowered and the blades spinning at 300 rpm. Besides
holding back the clods already broken up by the blades, the rear bar also obtains a well levelled and uniform surface after the soil
has been worked.

4.7.1 HOW TO WORK

Adjust the roller (8 Fig. 1) to suit the degree to which the soil must be crumbled, engage the PTO and begin to move forward
with the tractor, progressively lowering the implement. Cover a short distance, then check to make sure that the work depth, soil
crumbling and ground levelling operations have been carried out in the required way.
The speed of the tractor when the machine is operation must not exceed 2-4 mph or components could be broken or dama-
K 270
mekfarmer
Fig. 13
CAUTION
ged.
- 29 -
macchine agricole
Fig. 14