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Husqvarna 137 - Reduce Chance of Kickback; Maintain Control During Operation

Husqvarna 137
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causethechaintodigintotheobject,
whichstopsthechah_foraninstant.The
resultisalightningfasLreversereaction
whichkickstheguidebarupandbackto-
wardtheoperator.
Pinch-Kickbackcanoccurwhenthethe
woodclosesinandpinchesthemoving
sawchaininthecutalongthetopofthe
guidebarandthesawchainissuddenly
stopped.Thissuddenstoppingofthe
chainresultsinareversalofthechain
forceusedtocutwoodandcausesthe
sawtomoveintheoppositedirectionofthe
chainrotation,Thesawisdrivenstraight
backtowardtheoperator.
Pull4ncanoccurwhenthemovingchain
contactsaforeignobjectinthewoodinthe
cutalongthebottomoftheguidebarandthe
sawchainissuddenlystopped,Thissudden
stoppingpullsthesawforwardandaway
fromtheoperatorandcouldeasilycausethe
operatortolosecontrolofthesaw.
AvoidPinch-Kickback:
Beextremelyawareofsituationsorob-
structionsthatcancausematerialtopinch
thetopoforotherwisestopthechain,
Donotcutmorethanonelogatatime,
Donottwistthesawasthebariswith-
drawnfromanundercutwhenbucking,
AvoidPull-In:
Alwaysbegincuttingwiththeengh_eatfull
speedandthesawhousingagainstwood.
Usewedgesmadeofplasticorwood.
Neverusemetaltoholdthecutopen.
'X_ KickbackPath
REDUCE THE CHANCE OF
KICKBACK
Recognize that kickback can happen.
With a basic understanding of kickback,
you can reduce the element of surprise
which contributes to accidents,
Never let the moving chain contact any ob-
ject at the tip of the guide bar,
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,
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 chain brake nuts are se-
curely tightened after tensioning the chain.
Begin and continue cutting at full speed, If
the chain is moving at a slower speed, there
is greater chance of kickback occurring,
Cut one log at a time,
Use extreme caution when re-entering a
previous cut.
Do not attempt cuts starting with the tip of
the bar (plunge cuts),
Watch for shifting logs or other forces that
could close a cut and pinch or fail into chain.
Use the Reduced-Kickback Guide Bar
and Low-Kickback Chain specified for
your saw,
MAINTAIN CONTROL
Stand to the
left of the,
Never reverse" |_"
hand positions
Thumb on
underside of
handlebar
X
Elbow locked
Thumb on underside of
handlebar
Keep a good, firm grip on the saw with both
hands when the engine is running and
don't let go, A firm grip wili help you reduce
kickback and maintain control of the saw.
Keep the fingers of your left hand encir-
cling and your left thumb under the front
handlebar. Keep your right hand complete-
ly around the rear handle whether your are
right handed or left handed. Keep your left
arm straight with the elbow locked.
Position your left hand on the front handle-
bar so it is in a straight line with your right
hand on the rear handle when making
bucking cuts. Never reverse right and left
hand positions for any type of cutting,
Stand with your weight evenly balanced on
both feet,
Stand slightly to the left side of the saw to
keep your body from being in a direct line
with the cutting chain,
Do not overreach. You could be drawn or
thrown off balance and lose control of the
saw.
Do not cut above shoulder height. It is diffi-
cult to maintain control of saw above
shoulder height.

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