Stihl MS 191 T Instruction Manual page 16

b) saws with a displacement of 3.8
cubic inches and above
– must be equipped with at least one
device designed to reduce the risk
of kickback injury such as a chain
brake, low kickback chain, reduced
kickback bar, etc.
The computer derived angles for saws
below 3.8 cubic inch displacement are
measured by applying a computer
program to test results from a kickback
test machine.
!
Warning!
The computer derived angles of § 5.11
of ANSI B 175.1-2000 may bear no
relationship to actual kickback bar
rotation angles that may occur in real life
cutting situations. Compliance with §
5.11 of ANSI B 175.1-2000 does not
automatically mean that in a real life
kickback the bar and chain will rotate at
most 45°.
MS 191 T
!
Warning!
In order for powerheads below 3.8 cubic
inch displacement to comply with the
computed kickback angle requirements
of § 5.11 of ANSI B 175.1-2000 use only
the following cutting attachments:
– bar and chain combinations listed
as complying in the "Specifications"
section of the owner's manual or
– other replacement bar and chain
combinations marked in
accordance with the standard for
use on the powerhead or
– replacement chain designated "low
1)
kickback saw chain"
1)
"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
Chain Saws) when tested on a selected
representative sample of chainsaws
below 3.8 cubic inch 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. STIHL offers a variety of
bars and chains. STIHL reduced
kickback bars and low kickback chains
are designed to 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 code
system 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.
English / USA
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