Primera BAG0175.3
5.7 Vario gearbox
(2) Adjustment scale
(3) Adjusting lever with pointer
(4) Locking button
(5) Oil level inspection glass
To adjust the spread rate, adjust the setting lev-
er.
The higher the scale value, the greater the
spread rate.
The spread rate is infinitely adjustable and is
adjusted using the calibration test.
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5.8 Dosing unit
The dosing units dose the volume set at the
Vario gearbox into the injector.
The machine has:
(1) Two seed dosing units
(2) A fertiliser dosing unit, optional
Each dosing unit is fitted with a shutter slide in
order to
• empty the dosing unit
• and replace the dosing rollers when the
hopper is full.
The metering roller ground wheel is being driven.
The seed falls into the injector sluice and is di-
rected by the air flow to the distributor head and
then to the coulters.
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