SPARK ARRESTOR MUFFLER
•The spark arrestor muffler controls the exhaust noise and prevents hot, glowing particles of carbon from leaving the muffler.
Make sure the spark arrestor screen is in good repair and properly seated in the muffler.
•Certain internal combustion engines operated on forest, brush, and/or
This requirement also applies to all U.S. Forest Service lands.
In some of these areas, the spark arrestor system must be certified per USDA Forest Service Regulation SAE J335.
Check with your local or state authorities for specific regulations in your area.
Failure to follow these requirements is a violation of the law.
CORRECT USE OF CHAIN BRAKE
Rotational kickback
Reduced radius belongs on top
Rotational kickback 
Chain moving downward at impact
Linear kickback
Pinch
DANGER
Kickback safety precaution for chain saw users: Kickback may occur when the nose or tip of the guide bar touches an object or when the wood closes in and pinches the saw chain in the cut.
The installation of a chain brake may be mandatory by law or as stipulated by insurance regulations in your area of operation.
You should inquire through local government offices, your employer or your local dealer to ensure that your chain saw conforms to the required safety standard.
ECHO chain brakes have been designed and tested to comply with international safety standards as follows.
This model needs to use
Do not use a combination other than those specified on page 22.
For your own safety, do not remove the chain brake system.
USA | : ANSI Standard B175.1 |
| Safety Requirement for chain saws |
Canada : CSA Standard Z 62.1 CHAIN SAWS
WARNING
ANSI Standard B175.1 stipulates that the brake shall stop the chain 0.12 seconds at an engine speed of 13500 r/min.
It is the responsibility of the owner/operator to ensure that the brake is serviced, adjusted and tested strictly in accordance with the instructions as detailed herein in order
to ensure that the brake performance is maintained in compliance with the Standard B175.1.
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