Instruction Manual

MSA 160 C, MSA 200 C
English
13
Chain Saw Kickback Standard
The following standards apply with
respect to kickback:
– § 19.108 of UL 60745-2-13
– § 5.11 of ANSI/OPEI B175.1-2012
These standards, in the following
referred to as "the chain saw kickback
standards" set certain performance and
design criteria related to chain saw
kickback.
To comply with the chain saw kickback
standards, electric chain saws
– must, in their original condition,
meet a 45° computer derived
kickback angle when equipped with
certain cutting attachments,
– and must be equipped with at least
two devices to reduce the risk of
kickback injury, such as a chain
brake, low kickback chain, reduced
kickback bar, etc.
The computer derived angles for electric
saws are measured by applying a
computer program to test results from
the kickback test machine.
WARNING
The computer derived angles of the
chain saw standards may bear no
relationship to actual kickback bar
rotation angles that may occur in real life
cutting situations.
In addition, features designed to reduce
kickback injuries may lose some of their
effectiveness when they are no longer in
their original condition, especially if they
have been improperly maintained.
Compliance with the chain saw kickback
standards does not automatically mean
that in a real life kickback the bar and
saw chain will rotate at most 45°.
WARNING
In order for chain saws to comply with
the computed kickback angle
requirements of the chain saw kickback
standards use only the following cutting
attachments:
– bar and saw chain combinations
listed as complying in the
"Specifications" section of the
instruction manual or
– other replacement bar and saw
chain combinations marked in
accordance with the standards for
use on the chain saw or
– replacement saw chain designated
"low kickback saw chain.''
See the section on "Low Kickback Saw
Chain and Reduced Kickback Bars."
Devices for Reducing the Risk of
Kickback Injury
STIHL recommends the use of the
STIHL Quickstop chain brake on your
chain saw with green labeled reduced
kickback bars and low kickback saw
chains.
WARNING
To reduce the risk of injury, never use a
saw if the chain brake does not function
properly. Take the saw to your local
STIHL servicing dealer. Do not use the
saw until the problem has been rectified.
STIHL Quickstop Chain Brake
STIHL has developed a chain stopping
system designed to reduce the risk of
injury in certain kickback situations. It is
called a Quickstop chain brake.