Primera BAG0175.3
5.15 Stone release
Fig. 44
(1) Chisel coulter in working position
(2) Chisel coulter lifted by stone release
The chisel coulter are individually suspended in parallelogram-sh
aped
brackets. These brackets each have a top and lower link, and act as a
stone release at the same time. If the respective chisel coulter hits an
obstacle in the soil, there is
• a vertical deflection possibility through the top link bending
against the spring force (3).
• a horizontal deflection possibility through the spring steel lower
link (4).
As a result, the chisel coulter can deflect and is protected from dam-
age. After passing the obstacle or at the latest when lifting the seed-
ing coulters, the chisel coulter is automatically moved back to its
working position.
The spring preload (5) for the stone release must not be adjust-
ed.
WARNING
Excessive wear of the coulter suspension when the stone
release is under constant strain can lead to failure of the
implement!
• The stone release may only react to occasionally occurring ob-
stacles on individual coulters.
• If the stone release is constantly reacting on all coulters:
ο Reduce the speed,
ο Reduce the placement depth,
ο Before seeding, ensure sufficient soil tillage depth.
Thanks to the coulter deflection possibilities, obstacles with a height
of up to 300 mm can be passed without damage.
To Next Page
Loading...
