Once you lift and lower the coulters, they will not be
lower below the limit that you determined with the
depth adjustment rings and maintain the seeding
depth in any circumstances.
7.
Step: Attach the locking shaft.
Note: If the locking shaft is not attached, the depth
adjustment rings may be partially or completely closed
and undesired circumstances may occur due to the
vibration to be generated during operation. To avoid this
problem, do not forget to attach the locking shaft.
Note: The pressure wheel height adjustment directly
affects the seeding depth. Therefore, it should be made
before the depth adjustment and not changed after the
completion of the adjustment. If the height adjustment of
the pressure wheel needs to be changed, recheck the
seeding depth after such change.
IMPORTANT: Double-disc coulters tend to deep
seeding due to their nature. Double-disc coulters
leave the seed to the bottom point of the discs.
Therefore, the submerging depth of the discs must
be observed and submerging deeper than the
seeding depth must be prevented during the
adjustment.
The submergence of the discs into the soil must
equal to maximum seeding depth. Otherwise, the
seed may go so deep and germination problems
may be observed.
Covering harrows throw the soil between the row
spacing onto the row and prevent the seeds to be
uncovered. However this procedure leads to an
increase in the seeding depth by 1-1.5 cm. Consider
the effect created by the embedding harrows during
the depth adjustment.
Due to the aforementioned circumstance, avoid
especially from deep seeding if you are using a drill
having double-disc coulters for the first time.
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