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BT 121
English
2
Pictograms
All the pictograms attached to the
machine are shown and explained in this
manual.
Symbols in text
Engineering improvements
STIHL's philosophy is to continually
improve all of its products. For this
reason we may modify the design,
engineering and appearance of our
products periodically.
Therefore, some changes, modifications
and improvements may not be covered
in this manual.
Observe all applicable local safety
regulations, standards and ordinances.
If you have not used this type of power
tool before: Have your dealer or other
experienced user show you how to
operate your power tool or attend a
special course in its operation.
Minors should never be allowed to use a
power tool.
Keep bystanders, especially children,
and animals away from the work area.
When the power tool is not in use, shut it
off so that it does not endanger others.
Secure it against unauthorized use.
The user is responsible for avoiding
injury to third parties or damage to their
property.
Do not lend or rent your power tool
without the instruction manual. Be sure
that anyone using it understands the
information contained in this manual.
The use of noise emitting power tools
may be restricted to certain times by
national or local regulations.
To operate the power tool you must be
rested, in good physical condition and
mental health.
If you have any condition that might be
aggravated by strenuous work, check
with your doctor before operating a
power tool.
Persons with pacemakers only: The
ignition system of your power tool
produces an electromagnetic field of a
very low intensity. This field may
interfere with some pacemakers. To
reduce health risks, STIHL recommends
that persons with pacemakers 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.
Use your power tool only for drilling
holes in soil and wood – depending on
the drilling tool mounted. Select drilling
axis so that the auger brake lever is
always in a position to be activated by
the operator's thigh.
Do not use your power tool for any other
purpose.
Before drilling, make sure there are no
buried power cables or supply pipes in
the work area (e.g. for gas, water,
electricity):
Guide to Using this Manual
Warning where there is a risk of
an accident or personal injury or
serious damage to property.
Caution where there is a risk of
damaging the machine or its
individual components.
Safety Precautions and
Working Techniques
Special safety precau-
tions must be observed
when working with this
power tool because of its
high torque and the high
speed of the auger in cer-
tain applications, and
because the augers have
sharp edges.
It is important you read
and understand the
instruction manual before
using your power tool for
the first time and keep
the manual in a safe
place for future refer-
ence. Non-observance of
the safety precautions
may result in serious or
even fatal injury.
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