ANDREOLI
ENGINEERING
Operator’s Manual
Self-propelled sprayer ATOM
90/166
5
SPRAY PARAMETERS SET UP
5.1
SPRAY PRESSURE REGULATION
5.1.1
Manual pressure regulation
It is possible to regulate the pressure of the chemicals using the switch on the steering column:
Push switch lever up to increase pressure; push lever down to reduce pressure.
You can fine adjust pressure by quick single click of lever up or down.
This switch directly controls the electric pressure regulator.
The spray pressure is shown on the display placed on the dash board.
Always remember to check carefully the number and size of tips fitted on the nozzles, as the
quality of the spray depends on the correct balance of pressure and drops size to ensure a good
coverage and a good drift resistance.
big tips (or too many open)
low spay pressure
too big drops
small tips (or too few open)
high spray pressure
too small drops
5.1.2
Automatic spray rate controller
If the machine is equipped with an automatic spray rate controller, the spray pressure is automatically
regulated by the controller if automatic mode is activated.
Example of Automatic/Manual mode
setting
Example of buttons to set pressure
If the machine is equipped with the controller, the operator must know how to use it and how
to set all the parameters for its correct functionality.
The driver must learn all information on the controller operator’s manual and keep it always
available for consultation.
The automatic controller adjusts the spray pressure according to the parameters set in.
It is also always possible to set manually the pressure from the computer.
For more information see the controller operator’s manual.
The sets of nozzles cores must be always carefully selected according to your spray programs.
The use of an automatic controller cannot ensure a good spray quality if you are using a
wrong set of nozzles cores:
big cores (or too many open)
low spay pressure
too big drops
small cores (or too few open)
high spray pressure
too small drops
