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correct rate of chemical is applied to the
target.
Follow these steps to calibrate the sprayer:
1. Measure the spray width of the nozzle on a
dry surface (in metres)
2. Spray a test area at the intended pressure
and speed. Record distance (in metres)
covered in one minute (minute)
3. Measure the nozzle output in litres over
one minute in a measuring jug (l/min)
The spray volume can be calculated by the
following formula:
Application Nozzle output (l/min) x 10,000
rate (L/Ha)
=
Spray width (m) x speed (m/min)
Flushing
The following information is provided as a
general guide for flushing your sprayer after a
spray application
For more specific information regarding
flushing, and decontamination, specific
to the products that you are applying, it is
recommended that you consult the chemical
label or your chemical supplier.
WARNING
: Operators must wear the
appropriate PPE.
1. Turn pump off.
2. Drain main tank by opening drain valve.
3. Add a quantity of fresh water to main tank
and allow to exit through drain.
4. Close drain valve and add a quantity of
fresh water along with decontaminating
agents if required to main tank.
5. Turn on pump, and spray fresh water
through the spray gun. This will ensure
that fresh water has circulated through the
pump and gun.
6. Drain remaining contents of fresh water.
and then re-close drain valve. The sprayer
is now ready for storage.
Storage
If the sprayer is to be stored for a long period
of time without use, there are several tasks
that need to be performed.
1. Clean the sprayer thoroughly as described
under “flushing”.
2. Store the sprayer out of direct sunlight and
where it will not be affected by frosts.
3. Ensure that the main tank is empty.
4. Protect hoses and electrical connections.
