5. Sawing
NOTE:
•Before proceeding to your job, read “For Safe Operation” section. It is recommended to first practice sawing easy logs. This also helps you get accustomed to your unit.
•It is not necessary to force the saw into the cut. Apply only light pressure while running the engine at full throttle.
•Racing the engine with the chain seized in a cutaway can damage the clutch system. When the saw chain is caught in the cut, do not attempt to pull it out by force, but use a wedge or a lever to open the cut.
■GUARD AGAINST KICKBACK
•This saw is equipped with a special “low kickback” chain that greatly reduces the severty of kickback should it occur.
•The saw chain has been tested in accordance with American National Standard Safety Specifications for gasoline powered chain saw (ANSI B175.1 1985) as having an acceptable low kickback level. On this saw never use any chain other than those recommended on page 12 of this manual, or which is not designated as meeting the ANSI B175.1 kickback levels on this saw.
•Low kickback saw chains are chains which have met the kickback requirements of ANSI B175.1 when tested on the representative samples of chain saws below 3.8 C.I.D. specified in ANSI B175.1.
•The guide bar supplied with this saw has an under 1.2 inch radius sprocket nose which produces a specific kickback energy. Never use a bar with a larger nose radius. Use only those recommended on page 12.
•The length of bars has a great effect on kickback. Use only those length as specified on page 12.
•This saw is also equipped with a chain brake that will stop the chain in the event of kickback if operating properly. You must check the chain brake operation before each usage by running the saw at full throttle for 1 or 2 seconds and pushing the front hand guard forward. The chain should stop immediately with the engine at full speed. If the chain is slow to stop or does not stop then replace the brake band and clutch drum before use.
•It is extremely important that the chain brake be checked for proper operation before each use and that the chain be sharp in order to maintain the kickback safety level of this saw. Removal of the safety devices, inadequate maintenance, or incorrect replacement of the bar or chain may increase the risk of serious personal injury due to kickback.
■FELLING A TREE
[CAUTION!] When you fell a tree, be sure to warn your neighboring workers of the danger.
10
