horsch Maestro 16 SX, Руководство по эксплуатации

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10 | AirSpeed single grain metering system
98 60026387 • 01 • 03/2021 • en
10.3.3 Adjusting the metering unit
Before starting drilling some adjustments must be made to the metering unit, these
may need to be adapted later during drilling.
NOTE
The data in the tables are guide values.
Depending on seed, working speed and other factors further adaptations may be
necessary for fine tuning.
This fine tuning can best be made with the test program in E-Manager - see E-Man-
ager instructions.
1 Selecting components The required components are selected and set according to the settings table (see
next page).
1. Select the fitting metering disc according to the grain size.
2. Install a metering disc on one row, see Replacing components.
3. Set the grain feed gate to the specified stage. Start with the lower stage.
4. Select the ejection wheel, separator, scraper, and grain dispenser as specified
and replace, if necessary, see Replacing components .
5. Verify the settings with the test program in the E-Manager, see section Check-
ing .
6. After the test was successful, install the matching components on all drill units
and perform the same settings on all metering units.
7. If the separation quality is not satisfactory, install the metering disc with the
next smaller or next larger hole diameter and run the test again.
8. Select the metering disc that produces the best singulation quality and install it
in all metering units.
2 Adjusting the
Overpressure
1. Activating Metering fan and setting the required speed.
2. Refer to the settings table for the required Overpressure, see below.
3. Adjust the Overpressure while the fan is running, see chapter Pneumatics .
4. Check on all metering units whether seed is present at the seed supply.
5. Check the pressure on the associated pressure gauge.
NOTE
Check the Overpressure regularly during drilling.
Notes on pressure
adjustment 1. Once the operating temperature has been reached in the hydraulic system, the
fan speed may require some minor correction.
2. The Overpressure must be adjusted, depending on the grain shape, weight
and conditions of use.
3. For sunflowers, set the Overpressure as low as possible.
4. Check the Overpressure once more during drilling and adjust if necessary. The
pressure changes when all metering discs are filled with grains.