6
English / USA
MS 191 T
THE OPERATOR
Physical Condition
You must be in good physical condition
and mental health and not under the
influence of any substance (drugs,
alcohol) which might impair vision,
dexterity or judgment.
Do not operate a chainsaw when you
are fatigued. Be alert - If you get tired
while operating your chainsaw, take a
break. Tiredness may result in loss of
control. Working with any chainsaw can
be strenuous. If you have any condition
that might be aggravated by strenuous
work, check with your doctor before
operating a chainsaw.
!
Warning!
Prolonged use of chainsaws (or other
machines) exposing the operator to
vibrations may produce whitefinger
disease (Raynaud's phenomenon) or
carpal tunnel syndrome.
These conditions reduce the hand's
ability to feel and regulate temperature,
produce numbness and burning sen-
sations and may cause nerve and
circulation damage and tissue necrosis.
All factors which contribute to white-
finger disease are not known, but cold
weather, smoking and diseases or
physical conditions that affect blood
vessels and blood transport, as well as
high vibration levels and long periods of
exposure to vibration are mentioned as
factors in the development of whitefinger
disease. In order to reduce the risk of
whitefinger disease and carpal tunnel
syndrome, please note the following:
–
Many STIHL models are available
with an anti-vibration (“AV”) system
designed to reduce the trans-
mission of vibrations created by the
engine and cutting attachment to
the operator's hands. An AV system
is recommended for those persons
using chainsaws on a regular or
sustained basis.
–
Wear gloves and keep your hands
warm. Heated handles, which are
available on most STIHL power-
heads, are recommended for cold
weather use.
–
Keep the saw chain sharp and the
saw, including the AV system, well
maintained. A dull chain will
increase cutting time, and pressing
a dull chain through wood will
increase the vibrations transmitted
to your hands. A saw with loose
components or with damaged or
worn AV buffers will also tend to
have higher vibration levels.
–
Maintain a firm grip at all times, but
do not squeeze the handles with
constant, excessive pressures, take
frequent breaks.
All the above mentioned precautions do
not guarantee that you will not sustain
whitefinger disease or carpal tunnel
syndrome. Therefore, continual and
regular users should monitor closely the
condition of their hands and fingers.
If any of the above symptoms appear,
seek medical advice immediately.
!
Warning!
The ignition system of your unit
produces an electromagnetic field of a
very low intensity. This field may inter-
fere with some pacemakers. To reduce
the risk of serious or fatal injury, persons
with pacemaker should consult their
physician and the pacemaker manu-
facturer before operating this tool.
Proper Clothing
Clothing must be sturdy
and snug-fitting, but allow
complete freedom of
movement. Avoid loose-
fitting jackets, scarves,
neckties, jewelry, flared or
cuffed pants, unconfined long hair or
anything that could be come entangled
with the saw or brush. Wear overalls or
jeans with reinforced cut retardant
inserts or cut retardant chaps.
Summary of Contents for MS 191 T
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