Stihl SR 420 Instruction Manual page 3

2 Safety Precautions and Working Techniques
Do not pass on or lend the machine to persons
who are not familiar with this model and its han‐
dling – always include the User Manual.
The use of machines that emit noise may be limi‐
ted to certain hours of the day as specified by
national and/or regional or local regulations.
Do not operate your machine if any of its compo‐
nents are damaged. Pay special attention to the
tightness of the container (no leaks).
Operate the power tool only if it is complete and
properly assembled.
Do not use a high-pressure washer to clean the
power tool. The solid jet of water may damage
parts of the unit.
2.1 Physical fitness
To operate the power tool you must be rested, in
good physical condition and mental health. If you
have any condition which may be aggravated by
strenuous work, check with your doctor before
operating a power tool.
If you have a pacemaker: The ignition system of
your machine produces an electromagnetic field
of very low intensity. This field may interfere with
some pacemakers. To reduce health risks,
STIHL recommends that persons with pacemak‐
ers consult their physician and the pacemaker
manufacturer before operating this tool.
Do not operate the power tool if you are under
the influence of any substance (drugs, alcohol)
which might impair vision, dexterity or judgment.
2.2 Applications
This mistblower is suitable for applying fungi‐
cides, herbicides and pesticides at ground level.
Spraying overhead is possible with mistblowers
equipped with a pressure pump. Typical areas of
application are in fruit, vegetable, wine and crop
growing, plantations, flower growing, grassland
and forestry.
Only use plant protection products that are spe‐
cifically approved for use in sprayers/mistblow‐
ers.
Do not use your power tool for any other purpose
because of the increased risk of accidents and
damage to the power tool. The product must not
be modified in any way - this may also lead to
accidents or damage to the unit.
0458-372-0121-C
2.3 Accessories and replacement
parts
Only use parts and accessories that are explicitly
approved for this power tool by STIHL or are
technically identical. If you have any questions in
this respect, consult your dealer. Use only high
quality parts and accessories. Otherwise there is
a risk of accidents and damage to the unit.
STIHL recommends the use of original STIHL
parts and accessories. They are specifically
designed to match the product and meet your
performance requirements.
Never attempt to modify your power tool in any
way since this may increase the risk of personal
injury. STIHL excludes all liability for personal
injury and damage to property caused while
using unauthorized attachments.
2.4 Clothing and equipment
Wear proper protective clothing and equipment
when using, filling and cleaning the power tool.
Follow the chemical manufacturer's user manual
with respect to protective equipment.
Immediately change work clothes contaminated
with plant control chemicals.
Clothing must be snug-fitting but
allow complete freedom of move‐
ment.
For some plant control chemicals it is
necessary to wear impermeable cov‐
eralls.
If you are spraying overhead, wear impermeable
head covering.
Avoid any clothing, scarves, neckties,
jewelry or anything that could get into
the air intake. Tie up and confine long
hair above your shoulders so that it
cannot be pulled into the machine.
Wear impermeable safety boots with
a non-slip sole which are resistant to
plant protection products.
Do not wear sandals or go barefoot.
WARNING
To reduce the risk of eye injuries,
wear close-fitting safety glasses in
accordance with European Standard
EN 166. Make sure the safety
glasses are a snug fit.
Wear a suitable respirator.
English
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