3Adjustment Of The Minimum Seed Rate - LEMKEN Saphir 7-B AutoLoad Operating Instructions Manual

18.2.3 Adjustment of the minimum seed rate
After loosening the lower handle nut (78) the desired minimum seed rate will
be adjusted by means of the lever (WH). The desired percentage seed rate
reduction can be calculated as follows:
Scale value of the 25 scale = (adjusted scale value x desired percentage of
the seed rate reduction) : (100)
Example:
With the adjustment of the 150 scale of 80 and a desired seed rate reduction
of 20 % an adjustment on scale 25 of 16 will be reached.
(80 x 20 %) : (100 %) = 16
By means of a calibration test it must be checked, whether the desired mini-
mum seed rate will be reached.
If not the adjustment must be corrected and checked by means of a new ca-
libration test.
See operating instructions of the seed drill control concerned!
30
25
20
Example
15
10
5
0
10 20
Percentage deviations of the seed rate in dependence of the adjusted mini-
mum and maximum seed rate.
66
Hydraulic remote control
30 40 50 60 70
25 %
30 %
20 %
80 90 100 110 120 130 140 150
Scale 150
15 %
10 %
5 %