Stihl MS 290 Manual De Instrucciones página 18

reduce the risk of kickback injury. Other
chains are designed to obtain higher
cutting efficiency or sharpening ease but
may result in higher kickback tendency.
STIHL has developed a color
codesystem to help you identify the
STIHL reduced kickback bars and low
kickback chains. Cutting attachments
with green warning decals or green
labels on the packaging are designed to
reduce the risk of kickback injury. The
matching of green decaled powerheads
under 3.8 cubic inch (62 cm³)
displacement with green labeled bars
and green labeled chains gives
compliance with the computed kickback
angle requirements of ANSI
B 175.1-2000 when the products are in
their original condition. Products with
yellow decals or labels are for users with
extraordinary cutting needs and
experience and specialized training for
dealing with kickback.
STIHL recommends the use of its
green labeled reduced kickback bars,
green labeled low kickback chains
and a STIHL Quickstop chain brake
for both experienced and
inexperienced chainsaw users.
MS 290, 310, 390
Please ask your STIHL dealer to
properly match your powerhead with the
appropriate bar/chain combinations to
reduce the risk of kickback injury. Green
labeled bars and chains are
recommended for all powerheads. See
your "STIHL Bar and Chain Information"
leaflet for details.
!
Warning!
Use of other, non-listed bar/chain
combinations may increase kickback
forces and increase the risk of kickback
injury. New bar/chain combinations may
be developed after publication of this
literature, which will, in combination with
certain powerheads, comply with
§ 5.11 of ANSI B 175.1-2000. Check
with your STIHL dealer for such
combinations.
!
Warning!
Reduced kickback bars and low
kickback chains do not prevent
kickback, but they are designed to
reduce the risk of kickback injury. They
are available from your STIHL dealer.
!
Warning!
Even if your saw is equipped with a
Quickstop, a reduced kickback bar and/
or low kickback chain, this does not
eliminate the risk of injury by kickback.
Therefore, always observe all safety
precautions to avoid kickback situations.
English / USA
Low kickback chain
Some types of saw chain have specially
designed components to reduce the
force of nose contact kickback. STIHL
has developed low kickback chain for
your powerhead.
"Low kickback saw chain" is a chain
which has met the kickback
performance requirements of § 5.11.2.4
of ANSI B 175.1-2000 (Safety
Requirements for Gasoline-Powered
ChainSaws) when tested in its original
condition on a selected representative
sample of chainsaws below 3.8 cubic
inch (62 cm³) displacement specified in
ANSI B 175.1-2000.
!
Warning!
There are potential powerhead and bar
combinations with which low kickback
saw chains can be used which have not
been specifically certified to comply with
the 45° computer derived kickback
angle of § 5.11 of ANSI B 175.1-2000.
Some low kickback chains have not
been tested with all powerhead and bar
combinations.
!
Warning!
A dull or improperly sharpened chain
may reduce or negate the effects of the
design features intended to reduce
kickback energy. Improper lowering or
sharpening of the depth gauges or
shaping of the cutters may increase the
chance and the potential energy of a
kickback. Always cut with a properly
sharpened chain.
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