McCulloch M3816 Chainsaw User Manual


 
5
S Mix andpour fuelinan outdoorarea onbare
ground; store fuel in a cool, dry , well venti-
lated place; and use an approved, marked
container for all fuel purposes. Wipe up all
fuel spills before starting saw.
S Mov eat least10 feet(3meters) from fuel-
ing site before starting engine.
S T urn the engine off and let saw cool in a
non-combustible area, not on dry leaves,
straw, paper,etc. Slowly remove fuelcap
and refuel unit.
S Storetheunitandfuelinanareawheref uel
vapors cannot reach sparks or open
flamesfromwaterheaters,electricmotors
or switches, furnaces, etc.
KICKBACK
WARNING: Avoid kickback which
can result inserious injury. Kickback is the
backward,upwardorsuddenforwardmotion
of the guide bar occurring when the saw
chainneartheuppertip oftheguidebarcon-
tacts any object such as a log or branch, or
when the wood closes in and pinches the
sawchaininthecut.Contactingaforeignob-
ject in the wood can also result in loss of
chain saw control.
S RotationalKickbackcanoccurwhenthe
movingchaincontactsan objectattheup-
per 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 lightning fast, reverse reaction
whichkicks the guidebar up andback to-
ward 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 reversal of the chain
force used to cut wood and causes the
sawtomoveintheoppositedirectionofthe
chain rotation. The saw is driven straight
back toward the operator.
S Pull-In can occur when the moving chain
contacts a fore ign object in the wo od in the
cut al ongthe bot tom oftheguide barandthe
saw chainis suddenly stopped. Thissudden
stopping pulls the saw forward and away
fromtheoperator a ndcouldeasily causethe
operator to lose control of the saw.
Avoid Pinch--Kickback:
S Be extremely aware ofsituations orobstruc-
tions t hatcancausematerial topinchthetop
of or otherwise stop the chain.
S Do not cut more t han onelog at a time.
S Do not twist the saw as the bar is with-
drawn from an undercut when bucking.
Avoid Pull--In:
S Alwaysbegincuttingwiththeengineatfull
speed andthesawhousingagainstwood.
S Use w edges made of plastic or wood.
Never use metalto holdthe cut open.
Kickback Path
Avoid Obstructions
Clear The
Working Area
REDUCETHECHANCEOF
KICKBACK
S Recognize that kickba ck can happen.
With a basic understanding of kickback,
you can reduce the element of surprise
which contributes to accidents.
S Neverletthemovingchainc ontactanyob-
ject at the tip ofthe 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 ar e cutting through aparticular log
or branch.
S Keep your saw chain sharp and properly
tensioned. Alooseordullchaincanincrease
the chance of kickback occurring. Follow
manufacturer’ s chain sharpening and main-
tenanceinstructions. Checktensionatregu-
lar intervals with the engine stopped, never
with the engine running. Make sure the bar
clamp nuts are securely tightened after ten-
sioning the chain.
S Begin and continue cutting at full speed. If
the chainis movingat a slower speed, there
is greater chance of kickback occurring.
S Cut one log ata time.
S Use extreme caution when re-entering a
previous cut.
S Do not attempt cuts starting withthe t ipof
the bar (plunge cuts).
S Watch for shifting logs or other forces that
could closea cut andpinch orfall in to chain.
S Use t he Reduced--Kickback Guide Bar
and Low--Kickback Chain specified for
your saw.
MAINTAIN CONTROL
Never reverse
hand positions
Stand to the left o f
the saw
Thumb on underside of
handlebar
Elbow locked