Oregon CS250 User Manual

20
OREGON® PowerNow™ 40V MAX CHAINSAW
MODEL CS250 OPERATOR’S MANUAL
F/N 547361 RevAD
© 2011 Blount, Inc.
OPERATING THE SAW
PRUNING
Whenpruning,makesureallbystanders
orhelpersareasafedistancefrom
fallingbranchesandarenotdirectly
infrontoforbehindthesawoperator.
Secureanybranchesthatmightpose
ahazard.Usetheproperauxiliary
equipment.Maintaingoodfooting,hold
thesawrmlywithbothhands,anddo
not overreach.
Withthesawatfullspeed,bringthe
bottomoftheguidebarintocontact
with the branch to be cut. Continue
cuttingusinglightpressure.Forlarger
branches,rstmakeashallowundercut
onthebottomofthebranchandthen
nishthecutfromthetop.Cuttinga
largebranchcompletelyfromthetop
couldcausesplintering.Acompletecut
fromthebottomcancausethebranch
topinchthebar.
FELLING A TREE
Whenbuckingandfellingoperations
arebeingperformedbytwoormore
persons,atthesametime,thefelling
operationshouldbeseparatedfrom
thebuckingoperationbyadistance
ofatleasttwicetheheightofthetree
beingfelled.Treesshouldnotbefelled
in a manner that would endanger any
person,strikeanyutilitylineorcause
anypropertydamage.Ifthetreedoes
make contact with any utility line, the
utilitycompanyshouldbenotied
immediately.
Thechainsawoperatorshouldkeepon
theuphillsideoftheterrainasthetree
islikelytorollorslidedownhillafteritis
felled.Aretreatpathshouldbeplanned
andclearedasnecessarybeforecutsare
started.Theretreatpathshouldextend
backanddiagonallytotherearofthe
expectedlineoffall(Fig.14).
RETREAT PATH OPTIONS
DIRECTION
OF FALL
RETREAT
RETREAT
Fig. 14
45°
Beforefellingisstarted,considerthe
naturalleanofthetree,thelocationof
larger branches and the wind direction
tojudgewhichwaythetreewillfall.
Remove dirt, stones, loose bark, nails,
staples,andwirefromthetreewhere
fellingcutsaretobemade.
1
)
NOTCHING UNDERCUT
Make the notch 1/3 the diameter
ofthetree,perpendiculartothe
directionoffall.Makethelower
horizontalnotchingcutrst.Thiswill
helptoavoidpinchingofeitherthe
saw chain or the guide bar when the
secondnotchisbeingmade(Fig.15).
NOTCHING UNDERCUT
DIRECTION
OF FALL
NOTCH
Fig. 15

Oregon CS250 Specifications

General

Brand	Oregon
Model	CS250
Category	Chainsaw
Language	English