Operation manual SP 9 - Compact
CHAPTER IX – FIELD SETTINGS– Page 7
the supporting part has a big volume.
9.6.2. HYDRAULIC ADJUSTMENT OF THE FIRST FURROW WIDTH (Deport)
¾ a / If the first plough bottom leaves hillocks it is because of too big furrow edge. The furrow
edge quantity is bigger than it is needed for compactness. If the first furrow width is decreased
hydraulically (deport) the first plough bottom will tear out less ground and hillocks will disappear.
¾ b /If the first plough bottom leaves dishes it is because it does not tear out enough quantity of
the ground for finishing the furrow. With hydraulic increasing of the first furrow width (deport) the
first plough bottom more ground will tear out and dishes will disappear. These adjustments can be
performed during the plough work. So at once you can see the result of the first furrow
adjustment.
¾ c / Individual case: If the deport of the first plough bottom is too big then instead of hillocks there
will be dishes. And the width of the rearing is too big for plough capacity. It can be explained that
the breast is not long enough to throw more ground to furrow. So the furrow has not been properly
backfilled. With decreasing of the first plough bottom tearing width the end of the breast will be
able to throw the ground into the furrow and hillocks will disappear.
To find the suitable first furrow width is enough to see the result of
previous ploughing (if the lateral and longitudinal level adjustment of the plough has been performed).
N.B. :
• On the slopes or uneven soil surface the first furrow width must be corrected to smooth ploughing.
• Too worn plough blades, coulters can not provide smooth ploughing.
¾
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