Adjusting the singling pressure with the tractor control unit

NOTE
To ensure that the singling units on the left and right machine sections are evenly supplied with air, do not change the setting on the rear air distributor for the machine sections.

REQUIREMENTS

  • The seed hoppers are filled

  • The machine is unfolded

  • The fertiliser fan is switched off

NOTE
The singling pressure is shown on the control terminal.
If the desired singling pressure is not reached, use a bigger hydraulic motor. For more information, contact your specialist workshop.

Seed

Singling pressure

Beets, rapeseed, sorghum or sunflower

35mbar ±5mbar

Maize, soya or field beans

45mbar ±5mbar

  1. Read the setting values from the table.
WARNING
Risk of injury due to parts of the fan being flung out
If the fan is operated at excessive speeds, fan parts can break and be flung out.
Make sure that the fan speed does not exceed 5.0001/min.
  1. Open the throttle 1 counterclockwise up to the stop.

  2. To switch on the singling fan:

    Switch on the red 1 tractor control unit.

  3. To warm up the hydraulic oil for optimal regulation of the hydraulic system:

    Run the fan for about 5 minutes at 3.5001/min.
NOTE
In normal operation, the singling discs are automatically filled when the fan is switched on.

  1. To fill the singling discs with seed grains:

    In the Work menu, select .

  2. To correct the singling pressure:

    Adjust the oil quantity on the tractor control unit.

The singling pressure is shown on the control terminal.

  1. If the pressure gauge 2 indicates a pressure greater than 150bar:

    Maintain the setting of the throttle

or

If the pressure gauge indicates a pressure lower than 150bar:

Close the throttle clockwise until the pressure gauge shows a pressure of 150bar to 160bar.

  1. When the throttle is closed:

    Readjust the singling pressure.

  2. When the singling pressure was readjusted:

    Correct the throttle adjustment.

  3. To monitor the fan:

    Refer to Configuring the fan speed monitoring in the ISOBUS operating manual

  4. The values in the table are reference values:

    Check the grain placement after driving a short distance.