Stihl MS 461 R Manual De Instrucciones página 15

manual, which reduces vibrations to a
level that allows for such extended chain
saw operation.
WARNING
When sawing, make sure that the saw
chain does not touch any foreign
materials such as rocks, fences, nails
and the like. Such objects may be flung
off, damage the saw chain or cause the
saw to kickback.
WARNING
Never modify your muffler. Any
modification could cause an increase in
heat radiation, sparks or sound level,
thereby increasing the risk of fire, burn
injury or hearing loss. You may also
permanently damage the engine. Have
your muffler serviced and repaired by
your STIHL servicing dealer only.
WARNING
The muffler and other parts of the engine
(e.g. fins of the cylinder, spark plug)
become hot during operation and remain
hot for a while after stopping the engine.
To reduce risk of burns, do not touch the
muffler and other parts while they are
hot. Keep the area around the muffler
clean. Remove excess lubricant and all
debris such as pine needles, branches
or leaves. Let the engine cool down
sitting on concrete, metal, bare ground
or solid wood (e.g. the trunk of a felled
tree) away from any combustible
substances.
MS 461 R
WARNING
An improperly mounted or damaged
cylinder housing or a
damaged/deformed muffler shell may
interfere with the cooling process of the
muffler. To reduce the risk of fire or burn
injury, do not continue work with a
damaged or improperly mounted
cylinder housing or a
damaged/deformed muffler shell.
Your muffler is furnished with a spark
arresting screen designed to reduce the
risk of fire from the emission of hot
particles. Never operate your unit with a
missing or damaged spark arresting
screen. If your gas/oil mix ratio is correct
(i.e., not too rich), this screen will
normally stay clean as a result of the
heat from the muffler and need no
service or maintenance. If you
experience loss of performance and you
suspect a clogged screen, have your
muffler maintained by a STIHL servicing
dealer. Some state or federal laws or
regulations may require a properly
maintained spark arrestor for certain
uses. See the "Maintenance, Repair and
Storing" section of these Safety
Precautions. Remember that the risk of
a brush or forest fire is greater in hot or
dry conditions.
WARNING
Some STIHL power tools
are equipped with a cata-
lytic converter, which is
designed to reduce the
exhaust emissions of the
engine by a chemical
process in the muffler.
Due to this process, the
muffler does not cool
down as rapidly as con-
ventional mufflers when
the engine returns to idle
or is shut off. To reduce
the risk of fire and burn
injuries when using a cat-
alytic converter, always
set your power tool down
in the upright position and
never locate it where the
muffler is near dry brush,
grass, wood chips or
other combustible materi-
als while it is still hot.
Roof-Venting
Fire and rescue departments in North
America frequently engage in the
practice of "roof-venting" structures
involved in fires to help evacuate
penned-up heat and smoke by sawing
vent openings into the top layer of a
building.
Roof-venting usually means physically
placing one or more fire fighters on or
near the roof of a structure, that may still
be burning and forcing openings either
manually or with a power tool. There are
several ways to make such an opening,
but many, if not most, run counter to
standard safe and sound operating
English
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