Emptying The Hopper - LEMKEN Saphir 7-B AutoLoad Operating Instructions Manual

some influences are not taken into account, which influence the seeding rate.
In properly cleaned seed and subsequent abrasion, (for example broken ears
of barley or encrusted rape), this can influence the seeding rate.
As a basis for the turning of the wheel rotations/ha an average wheel slip has
been assumed. In practice considerable deviations upwards or downwards
are possible.
Wet dressing can change the flowability of the seed. The flowability increases
and this results in larger seeding rate for a short time of operation, which then
maintain a constant level.
In order to prevent an seeding rate deviation a new calibration test after a
short distance (about 500 m) and, if necessary, a correction of the gear adju-
stment has to be carried out.
In combination with agricultural implements in particular there is the possibi-
lity of strong vibrations which normally increase the seeding quantity.
Even if the carefully manufactured machine is used according to the guide li-
nes, deviation of the seeding rate or even a total failure are possible because
of the mentioned factors. Check your machine before and during operation for
a correct and sufficient application rate.
The most accurate test in achieved by a measured drive test. For this purpose
a distance of 100 m is measured. The machine is driven along this distance
at the usual working speed. By opening the emptying flap the seed is collec-
ted in the calibration trays.
Multiply the collected quantity according to the working width.
Saphir 7 AutoLoad
250
300
400

5.7 Emptying the hopper

The hopper will be emptied as follows:
38
Weighed quantity
e.g. 4950 g
e.g. 5940 g
e.g. 7920
Multiplier Seed rate kg/ha
40
33,33
25
198
198
198