GUARD AGAINST KICKBACK
Follow all safety rules to help avoid kick- back and other forces which can result in serious injury.
Kickback Path
Avoid Obstructions
Clear The Working Area
WARNING: Avoid kickback which can result in serious injury. Kickback is the backward, upward or sudden for- ward motion of the guide bar occurring when the saw chain near the upper tip of the guide bar contacts any object such as a log or branch, or when the wood closes in and pinches the saw chain in the cut. Contacting a foreign object in the wood can also result in loss of chain saw control.
S Rotational Kickback can occur when
the moving chain contacts an object at the upper tip of the guide bar. This con- tact can cause the chain to dig into the object, which stops the chain for an instant. The result is a lightning fast, re- verse reaction which kicks the guide bar up and back toward the operator.
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REDUCE THE CHANCE OF
KICKBACK
The following precautions should be fol- lowed to minimize kickback:
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S Recognize that kickback can happen. With a basic understanding of kickback, you can reduce the element of surprise which contributes to accidents.
SNever let the moving chain contact any
object at the tip of the guide bar.
S Keep working area free from obstruc- tions such as other trees, branches, rocks, fences, stumps, etc. Eliminate or avoid any obstruction that your saw chain could hit while cutting.
S When cutting a branch, do not let the guide bar contact another branch or oth- er objects around it.
S Keep saw chain sharp and properly tensioned. A loose or dull chain can in- crease the chance of kickback. Follow manufacturer’s chain sharpening and maintenance instructions. Check ten- sion at regular intervals, but never with engine running. Make sure bar clamp nuts are securely tightened.
SBegin and continue cutting at full speed. If the chain is moving at a slower speed, there is greater chance of kickback oc- curring.
S Use extreme caution when
SDo not attempt cuts starting with the tip
of the bar (plunge cuts).
S Watch for shifting logs or other objects that could close a cut and pinch or fall onto chain.
S Use the specified
Avoid Pinch-Kickback:
SBe extremely aware of situations or ob-
structions that can cause material to pinch the top of or otherwise stop the chain.
SDo not cut more than one log at a time. S Do not twist the saw as the bar is with- drawn from an undercut when bucking.
Avoid Pull-In:
S Always begin cutting with the saw at full speed and the saw housing against wood.
S Use wedges made of plastic or wood. Never use metal to hold the cut open.
MAINTAIN CONTROL
S A good, firm grip on the saw with both hands will help you maintain control. Don’t let go. Grip the rear handle with your right hand whether you are right or left handed. Wrap the fingers of your left hand over and around the front handle- bar, and your left thumb under the front handlebar. Keep your left arm straight with the elbow locked.