If the hopper is emptied by using the calibration test troughs the procedure is principally the same
as described above. If there is much of seed left in the hopper the lever of the bottom valves must be
shut for the time the troughs are being emptied.
7.
FEEDING SYSTEM
7.1. General description
The feeding system consists of feeding rollers, spring-loaded bottom valves and adjustable locking
plates. Fig. 19.
Fig. 19. Feeding system.
Feeding chambers are situated in the bottom of the hopper. Thus the sown amount stays practically
constant in spite of inclinations in lateral or driving directions.
The quantity to be sown is adjusted by moving the feeding roller laterally in relation to the feeding
chamber. The adjustment is carried out with the hand wheel situated at the left drill end.
The feeding system is manufactured of stainless materials.
The bottom valves under the feeding chambers are adjustable. The adjusting lever is situated at the
rearer end of the machine, fig. 20.
Fig. 20. Setting of feeding quantity on hand wheel.
