Customer Safety Information: Important To dealers: For customer safety, this is a must read. This insert covers provisions of the safety standard, “ANSI (American National Standards Institute) B175.1". It describes requirements that are designed to reduce the risk of injury due to kickback from chainsaws sold in the United States. Kickback is a rapid upward and backward motion of the chainsaw. It happens when the moving saw chain, near the upper part of the tip of the guide bar, contacts an object—for example, a log or a branch. The ANSI standard contains test methods. And these methods check the kickback potential for chainsaws and replacement saw chain. To help you keep your customers safe, we have included an Oregon Saw Chain Classification Chart. It helps you choose the right replacement saw chains. And, it helps maintain compliance with the ANSI standard. Chainsaws and the ANSI standard The ANSI standard divides all gasoline powered chainsaws into two groups: According to the ANSI standard, chainsaws below 3.8 cubic inch displacement (62 cc), have to meet low kickback perfor- mance requirements (paragraph 22.214.171.124). The manufacturer is required to mark these chainsaws. These chainsaws are required to be durably marked in a lasting manner to iden- tify at least one replacement bar-and-chain combination that has been evaluated with that chainsaw power head and that will provide low kickback performance. Chainsaws that have 3.8 cubic inch displacement (62 cc) and above, can follow ANSI low kickback provisions. But they are not required to do so. Chainsaws that don’t meet the low kickback performance requirements need identification. Spe- cifically, a warning, such as the following: WARNING: This chainsaw is capable of severe kickback that could result in serious injury to the user. Do not operate this chainsaw unless you have extraordinary cutting needs and experience and specialized training for dealing with kickback. Chainsaws with significantly reduced kickback potential are available. Replacement saw chain and the ANSI standard When you replace the saw chain on chainsaws below 3.8 cubic inch displacement (62 cc), you have to use a low kickback chain of the proper pitch, gauge, and drive link count. That keeps the chainsaw in compliance with the low kickback provisions of the ANSI standard. Oregon provides replacement saw chain and we label it according to the ANSI standard. See the green highlighted chain types in the saw chain classification chart included. These are low kickback. The yellow highlighted chain types are not low kickback. These should be used only by people with experience and specialized training for dealing with kickback. • Below 3.8 cubic inch displacement (62 cc) • 3.8 cubic inch displacement (62 cc) and above
Green label chain is low kickback chain
The green label reads:
ATTENTION: READ THIS WARNING: This saw chain met the kickback
performance requirements of ANSI B175.1-2012 when tested according to the provisions of ANSI B175.1-2012. Low kickback saw chain meets the kickback performance requirements of CSA Standard Z62.3.
Yellow label chain does not comply with the low kickback requirements of the standard
The yellow label reads:
ATTENTION: READ THIS WARNING: The saw chain in this package may be capable of kickback that could result in serious injury to the chainsaw operator or bystanders. Do not use this saw chain unless you have experience and specialized training for dealing with kickback. Saw chain with reduced kickback potential is available.
Replacement guide bars and the ANSI standard The ANSI standard states:
Because of differences in replacement guide bars, the fol- lowing guidelines shall be considered to determine kickback energy: A. Sprocket nose guide bars with the same effective length, the same number of sprocket nose teeth, the same nose radius, and the same pitch may be considered to have the equivalent kickback energy. B. A hard-nose guide bar having the same effective bar length, and the same or smaller nose radius as a sprocket-nose bar, may be considered to have equivalent or less kickback energy than the sprocket nose bar. C. Kickback energy of all guide bars may be considered to be less for smaller nose radius sizes. When replacing guide bars, in order to maintain approxi- mately the same kickback energy of a chainsaw, the nose size (radius), or number of teeth in a sprocket nose bar, of the replacement bar should be equal to or smaller than the original equipment nose – with the same bar length.
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