APV – Technische Produkte GmbH
Original operating manual LF 600 M1
Page 23
Procedure
To check the spread rate:
Step
Description
1
Set the desired parameters on the control box (spread rate in l/ha, speed, and working
width).
2
Place a cup under each outlet (nozzle) to collect the liquid.
3
Start the pump on the control box and let it run for approx. 30 sec. so that the pump can
adjust itself.
4
Empty all of the cups and put them back under the nozzles.
5
Start the pump and the timer simultaneously. Stop again simultaneously after 1-2 minutes.
6
Empty all of the cups in a measuring cup and check the spread quantity with the formula
shown on page 22.
7
If there is a difference to the set values, the percentage of the deviation must be determined
and this percentage must then be added or deducted from the pulses/litre.
6.3
Selecting the right nozzles
Purpose
Fertilising results are significantly improved by selecting the right nozzle which is suitable for the spread
rate.
Requirements
The following requirement must be fulfilled for this work step:
•
None
Required components, tools and materials
For this work step, the following components, tools
and materials are required:
•
None
TIP!
Grooves can be seen on the nozzles. The
number of grooves can be used to
determine the diameter: 1 groove = 1 mm
nozzle, 2 grooves = 2 mm nozzle,
3 grooves = 3 mm nozzle (see also
Figure 7).
CAUTION!
It is important to select the combination of nozzles such that the motor power on the
control box is ideally between 20% and 80%. This ensures good regulation and
homogeneous delivery of the liquid fertilizer even with ground speed-related spreading at
very low or high speeds.
Figure 7: 1 mm nozzle with 1 groove, 2 mm nozzle with
2 grooves, 3 mm nozzle with 3 grooves
