4
S
Move at least 10 feet (3 meters) from fuel-
ing site before starting engine.
S
Turn the engine off and let saw cool in a
non-combustible area, not on dry leaves,
straw, paper, etc. Slowly remove fuel cap
and refuel unit.
S
Store the unit and fuel in an area where fuel
vapors cannot reach sparks or open
flames from water heaters, electric motors
or switches, furnaces, etc.
KICKBACK
WARNING:
Avoid kickback which
can result in serious injury.
Kickback
is the
backward, upward or sudden forward 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 contact can cause
the chain to dig into the object, which stops
the chain for an instant. The result is a light-
ning fast, reverse reaction which kicks the
guide bar up and back toward the operator.
S
Pinch-Kickback
can occur when the the
wood closes in and pinches the moving saw
chain in the cut along the top of the guide bar
and the saw chain is suddenly stopped. This
sudden stopping of the chain results in a re-
versal of the chain force used to cut wood
and causes the saw to move in the opposite
direction of the chain rotation. The saw is
driven straight back toward the operator.
S
Pull-In
can occur when the moving chain
contacts a foreign object in the wood in the
cut along the bottom of the guide bar and the
saw chain is suddenly stopped. This sudden
stopping pulls the saw forward and away
from the operator and could easily cause the
operator to lose control of the saw.
Avoid Pinch- Kickback:
S
Be extremely aware of situations or ob-
structions that can cause material to pinch
the top of or otherwise stop the chain.
S
Do 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 engine 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.
Kickback Path
Clear The
Working Area
Avoid Obstructions
REDUCE THE CHANCE OF
KICKBACK
S
Recognize that kickback can happen.
With a basic understanding of kickback,
you can reduce the element of surprise
which contributes to accidents.
S
Never let the moving chain contact any ob-
ject at the tip of the guide bar.
S
Keep the 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 you are cutting. When cutting a
branch, do not let the guide bar contact
branch or other objects around it.
S
Keep your saw chain sharp and properly
tensioned. A loose or dull chain can in-
crease the chance of kickback occurring.
Follow manufacturer’s chain sharpening
and maintenance instructions. Check ten-
sion at regular intervals with the engine
stopped, never with the engine running.
Make sure the bar nuts are securely tight-
ened after tensioning the chain.
S
Begin and continue cutting at full speed. If
the chain is moving at a slower speed,
there is greater chance of kickback occur-
ring.
S
Cut one log at a time.
S
Use extreme caution when re-entering a
previous cut.
S
Do not attempt cuts starting with the tip of
the bar (plunge cuts).
S
Watch for shifting logs or other forces that
could close a cut and pinch or fall into chain.
S
Use the Reduced- Kickback Guide Bar
and Low- Kickback Chain specified for
your saw.
MAINTAIN CONTROL
Never reverse
hand positions
Stand to the
left of the saw
Thumb on
underside of
handlebar
Thumb on underside of
handlebar
Elbow locked
S
Keep a good, firm grip on the saw with both
hands when the engine is running and don’t
let go. A firm grip will help you reduce kick-
back and maintain control of the saw. Keep
the fingers of your left hand encircling and
Summary of Contents for PP4218AV
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