5 - Operation
5.5
Adjustment of EVC operating unit
Before spraying, the EVC operating unit is adjusted using clean water
(without chemicals).
1. Choose the correct nozzle for the spray job by turning the TRIPLET
nozzle bodies. Make
sure that all nozzles are the same type and
capacity. See the “Spray Technique” book.
2. The main on/off switch is set to ON at the spray control unit.
3. All distribution valve switches are turned ON at the spray contro
l
unit.
4. The pressure regulation switch on the spray control unit is pressed
down until the emergency handle on the valve stops rotating
(minimum pressure).
5. Put the tractor in neutral and adjust the
P. T. O . a nd thereby the
number of revolutions of the pump corresponding to the
intended travelling speed. Remember the number of revolutions
on the P. T. O . m u st be kept between 300-600 rpm (pump 540 rpm)
or 650-1100
rpm (pump 1000 rpm).
6. The pressure regulation switch on the spray control unit is pressed
up until the required spray pressure is shown on the pressure
gauge.
Adjustment of pressure equalization is now done f
or every single
section valve:
1. Close the first section valve on the spray control unit.
2. Turn the adjusting screw for the corresponding valve until the
pressure gauge again shows the same pressure a
s when all
sections were open.
3. Open the section valve again.
4. Adjust the next section valves in the same way.
ATTENTION! HEREAFTER ADJUSTMENT OF PRESSURE EQUALIZATION WILL ONLY BE NEEDED WHEN:
1. YOU CHANGE TO NOZZLES WITH OTHER CAPACITIES
2. THE NOZZLE OUTPUT INCREASES AS THE NOZZLES WEAR
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