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9. Seed feeding equipment and adjustments
Overview
JC seed drills use a groove feed on both the fertilizer and seed sides. The feeding bodies are called feed
rollers. Under the feed rollers, you can find adjustable bottom flaps with springs, with closing covers on top of
them, see Fig. 20. The feed chambers are located at the bottom of the containers. In practice, this solution
provides independence in terms of sowing amounts, despite any tilting of the seed drill from side to side, or
the driving direction. The feeding equipment is manufactured of corrosion-resistant materials. The bottom flap
adjustment lever under the feed rollers is in the center of the rear of the machine, see Figs. 20 and 24. For
sowing small seeds, the power transmission ratio can be adjusted by turning the power transmission cassette,
see Figs. 22 and 23.
Figure 20. Structure of seed feeding equipment.
The feed amount can be changed by adjusting the feed rollers mounted on the feeding shaft sideways in
relation to the feed chambers, such that this changes the effective width of the feed rollers. Adjustments are
made on the left side of the machine with a hand-wheel, see Fig. 21.
Figure 21. Feed adjustment hand-wheel.
