13
Quality for Professionals
TIP: The control block is designed for 80 l/min – the system can overheat either if the
tractor pump produces a larger quantity of oil, or if the tractor is not equipped with oil
cooling.
CAUTION: The setting is only valid for the tractor used. If a different tractor is connected,
the blower fan must be readjusted!
Correct adjustment is essential to prevent possible seeding errors ifen the speed is too
slow or prevent possible damage to the blower fan if the speed is too fast!
Setting table for the control valve:
(valid for approx. 50°C oil temperature)
Working width
Seed Rate Pressure Speed Pressure Speed Pressure Speed
Fine seed 5 kg/ha 9 bar 750 rpm 15 bar 1000 rpm 15 bar 1000 rpm
Fine seed 30 kg/ha 20 bar 1250 rpm 22 bar 1500 rpm 24 bar 1600 rpm
Coarse
seed
50 kg/ha 16 bar 1100 rpm 20 bar 1250 rpm 37 bar 2000 rpm
Coarse
seed
200 kg/ha 22 bar 1500 rpm 50 bar 2500 rpm 64 bar 2900 rpm
These pressure specifications apply for the manometer attached on the control block.
TIP: A measuring strip is applied on the hydraulic motor. If the temperature
increases in a range of the scale (from 71°C to 110°C), the strip is coloured
black.
Temperatures above 80 °C are not permitted!
Fig.: 13
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