24
Working width 12 m
Seed
Rate
Pressure
Speed
Coarse seed
100 kg/ha
41 bar
4300 rpm
5.2
SETTING AND ADJUSTING THE SPREAD RATE
Purpose
The setting for the spread rate, which is spread by the seed drill during the seeding process, has a
significant effect on the seeding results.
Requirements
The following requirement must be fulfilled for this work step:
None
Procedure
This is how to set and adjust the spread rate:
Step Description
1
Perform a calibration test to determine the current spread rate, see
Performing a calibration
test
on page 24 for more information.
2
If necessary, take measures to adjust the spread rate.
Suitable measures are:
Selection of the seeding shaft, see
Selecting the right seeding shaft
on page 25 for more
information.
Selection of the brush pressure, see
Setting the brush pressure
on page 29 for more
information.
Adjustment of the working width, see
Installing dispersion plates on the soil tillage
implement
on page 17 for more information.
Adjusting the tractor speed.
Calculating the spread rate
The spread rate can be calculated using the following formula:
SpR: Spread rate in kg/min
r(req): Required spread rate in kg/ha
v(tractor): Speed of the tractor in km/h
w(working): Working width in m
5.3
REGULATING THE SEED FLOW RATE (CALIBRATION TEST)
Purpose
During the calibration test, the seed quantity for a specific area is defined.
Requirements
The following requirement must be fulfilled for this work step:
The implement is disconnected from the power source, see
Disconnecting the seed drill from the power
source
on page 33 for more information.
Required components, tools and materials
For this work step, the following components, tools and materials are required:
Calibration bag
Hexagon key
