How to adjust the amount of seed under the corn planter?

A corn planterHow to adjust the amount of seeds?

1.Adjust the dial of the seed feeder of the corn drill upward, adjust the number of grains downward, and adjust the number of seeds upward。

2.Check whether the chain ratio of seed feeder is correct。(Is the eight gear above the seed feeder correct? The higher the gear is, the less seed will be produced)

3.Check the red knob of seed dispenser, up to turn out less seeds, down to turn out more seeds。

4.Check whether the scoop of the seed dispenser matches the corresponding one, use the big spoon for the big corn kernels, and use the small spoon for the small corn kernels。