Machines without control computer

  1. To pull out the calibration trough:

    Fold down the bracket 1.
  1. Pull out the calibration trough 1.

  1. To collect the seed in the calibration trough 1:

    Turn the calibration trough with the opening facing up.
  1. Slide in the calibration trough 1.

  1. To guide the seed into the calibration trough:

    Move the calibration lever 1 beyond the latch to the end position.
  2. Push the calibration lever back and let it engage in the calibration position.

The flag 2 indicates that the calibration lever 1 is in calibration position.

  1. To release the locking mechanism of the gearbox setting lever:

    Turn the lock button 1 counterclockwise.

The setting for the gearbox setting lever when using coarse metering wheels 2 or fine metering wheels 1 can be found in the second row of the table.

  1. To move the gearbox setting lever in the correct position:

    Read the required value from the table.

  2. To lock the gearbox setting lever:

    Turn the locking button clockwise.
NOTE
The crank turns listed in the table 1 were determined during a calibration run on a standardised field with the AmaLog+ control computer. On fields with more or less slip, the pulses deviate from the standardised pulses 2. This also changes the number of crank turns in the table.

To determine the required number of crank turns under slippery conditions, an area of 250m² must be worked on the field.

This corresponds to the following distances with the respective working widths:

Working width

Distance travelled

2,5m

100m

3m

83,3m

3,43m

72,9m

3,5m

71,4m

4m

62,5m

  1. Measure an area of 250m² on the field

or

Read the required travelled distance based on the working width from the table.

  1. Drive the distance and count the rotations of the star wheel.

Designation

Description

Se

Counted rotations of the star wheel

K

Required crank turns

The star wheel rotations counted on the field must be converted to crank turns.

  1. To convert the star wheel rotations into crank turns:

    Calculate the crank turns using the equation.
  1. Put the universal operating tool 1 on the adjustment spindle 2.
  2. Read the number of crank turns for the calibration from the table

or

Use the determined crank turns.

  1. To guide seed into the calibration trough:

    Turn the universal operating tool counterclockwise 1.
  1. Open the hopper cover.
  2. Take the scale 1 and collapsible bucket 2 from the hopper cover.
  1. Fold down the bracket 1 on the ascent.
  1. Hang the scale 2 on the bracket 1 on the ascent.

  2. To weigh the collected seed from the calibration trough:

    Hang the collapsible bucket 3 on the scale and pour in the seed.

The desired seed rate is generally not achieved with the first calibration. To achieve the desired seed rate, the calculator disc and the calibration factor from the first calibration must be used to determine the desired seed rate.

  • Determined spread rate 175 kg/ha 1

  • Utilised gearbox position 70 2

  • Desired spread rate 125 kg/ha 3

  • Gearbox position 50 4 for the desired spread rate

  1. Align the determined seed rate 1 with the utilised gearbox position 2 on the calculator disc.
  2. Read the gearbox position 4 for the desired spread rate 3 from the calculator disc.

  3. To set the gearbox setting lever below the scale value of 20 or above the scale value of 80:

    See section Extending the setting range of the Vario gearbox

or

Set the gearbox setting lever between the scale values 20 and 80.

  1. Repeat the calibration.