Spreading operation B
108
B.6.2 Implementing the calibration
Requirements:
The metering slides are closed.
PTO and tractor engine are switched off and locked to prevent unauthorised
starting.
An adequately sized container is ready for collecting the fertiliser (minimum
capacity 25 kg).
- Determine the empty weight of the collecting vessel.
Prepare the calibration test chute. The calibration test chute is located in the
centre behind the spreading disc guard.
A sufficient quantity of fertiliser is placed in the hopper.
Using the fertiliser chart, the pre-set values for the metering slide end stop,
the PTO speed and the calibration test time are determined and known.
n WARNING
Risk of injury due to chemicals
Escaping fertiliser may lead to injury to eyes and nasal mucous
membrane.
Wear safety goggles during the calibration.
Before running the calibration test, ensure that all people
leave the hazard zone of the machine.
NOTICE
Select the values for the calibration test for the maximum possible spreading
rate. The greater the quantity, the greater the precision of the measurement.
[1] Position of the calibration test
chute
Figure 16: Calibration test chute
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