SG 20
English
4
THE BACKPACK SPRAYER
For illustrations and definitions of the
backpack sprayer parts see the chapter
on "Main Parts and Controls."
If this tool is subjected to unusually high
loads for which it was not designed (e.g.
heavy impact or a fall), always check
that it is in good condition before
continuing work. Check in particular that
the container system is tight (no leaks)
and that the controls are working
properly. Do not continue operating this
backpack sprayer if it is damaged. In
case of doubt, have it checked by your
STIHL servicing dealer.
HANDLING OF CHEMICALS
Carefully read the labels on chemical
containers prior to use. Chemicals are
classified into categories of toxicity.
Pesticides regulated by the EPA, for
instance, use signal words to indicate
the product’s potential to make you sick.
"Caution" appears on pesticides found
to be least harmful to humans.
"Warning" indicates a product that is
more poisonous than those in the
"Caution" group. Pesticides with the
signal word "Danger" on the label are
very poisonous or irritating. They should
be used with extreme care. Finally,
pesticides labeled "Danger – Poison"
are for restricted use only and generally
must be used under the supervision of a
certified applicator. Similarly, the EPA
rates herbicides with the signal words
"Caution", "Warning" and "Danger."
Each category will have unique handling
characteristics. Familiarize yourself with
the characteristics for the category you
are using.
When handling chemicals and when
spraying, make sure you are operating
in accordance with local, state, and
federal environmental protection rules
and guidelines. Do not spray in windy
conditions. To help protect the
environment, use only the
recommended dosage – do not overuse.
Do not transfer spray materials to other
containers, especially food and/or drink
containers.
Clean all chemical spills immediately.
Dispose of any residue in accordance
with state or federal laws and
regulations.
Warning!
Never modify this backpack sprayer in
any way. Only attachments supplied by
STIHL or expressly approved by STIHL
for use with the specific STIHL model
are authorized.
Warning!
Make sure the hose is securely attached
and in good condition before pressuriz-
ing the container. Never attempt to
pressurize the unit by any other method
than with the pump module provided.
Warning!
Chemicals can be harmful to individu-
als, animals and the environment if
improperly used. In addition, some
chemicals that are caustic, corrosive or
poisonous should not be used in your
sprayer.
Warning!
Mix only compatible pesticides and/or
herbicides. Wrong mixtures can pro-
duce toxic fumes.
Warning!
Do not eat, drink, or smoke while han-
dling chemicals or while you are
spraying. Never blow through nozzles,
valves, pipes or any other component
by mouth. Always handle chemicals in a
well-ventilated area while wearing
appropriate protective clothing and
safety equipment. Do not store or trans-
port chemicals with food or medicines,
and never reuse a chemical container
for any other purpose.
Warning!
In case of accidental contact or inges-
tion of chemicals or in case of
contamination of clothing, stop work and
immediately consult the chemical man-
ufacturer’s instructions. If in doubt as to
what to do, consult a poison control
center or doctor without delay. Have the
product’s label available to read to or
show the persons you consult.
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