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TYPES OF CUTTING
Ill IlnnIn iiiiiiiiiiiilllt_ 1111111111/ [ I lan i II . I
A. BASIC CUTTING TECHNIQUE
).' IMPORTANT POINTS
a. Cut wood only. Do not cut metat, plastics,
masonry,non-woodbuildingmaterials,etc.Donot
useyoursawtopryorshoveawaylimbs,rootsor
otherobjects_
b. Stop the saw if the chain strikes a foreign
object. Inspecttheuntand repairorreplaceparts
as neoessary. . .
c.- Keepthechsin outofdirt andsand. IEvenasmal!
amount of dirt wfl!quickly dull a chain, which
increasesthe possibilityofkickback.
' ,_ KICKBACKWARNING
Klokback can ocGurwhen the moving chain contacts
anobject at the upper portion ofthe tipofthe guide bar
orwhen the wood doses in aridpinches theSawchain
Inthe cut. Contact at theupperponion ofthe tip ofthe
guidebar cancause the chaintodlgIn_ theoh,lootand
stop the chain for aninstant. The result is a lightning
fast, reverse reaction whichkicksthe guide bar up and
back totmrd the operator. If the saw chain ispinched
Mong thetop of theguide bar, the guide bar can be
"driven re#idly back toward theoperator, FJtherof these
reactions can cause loss of saw control which can
result in serious injury.
2, UNDERSTAND REACTIVE FORCES
•Plnch-Kicld)ack and Pull-inoccur when the chain
is suddenly stopped by being pinched, caught,
-or bycontacting a foreignobject in the wood. This=
results in a reversal Ofthe chain .forceused to cut
wood and causes the sawto move in the opposite d,
direction ofchain rotatiomEitherreactioncan result
inlossofcontroland possiblesetfousinjury, e.
* Pinch-Kickback:
ocoursWhenthechainontop ofthebar issud- _.
denlystopped, ,,..;
• BEGiNCUTT|NG WITH THESAW
UP AGAINST THE
Figure 17
DOnotstallthe chain in the cut. This
will overheat the motor and cause damage.
PROCEDURE .
Practicecutting a fewsmall logs usingthefollowing
techniqueto getthe "feel" Ofusingyoursaw before
you begin a major sawing operation
a. Assumethe propercutUng stancedescribed In
the section "Special Safety Section," page 3,
•"-- firm grip on front and rear handles, weight
evenly balanced on both feet;, and body
slightly to the left side of the saw.
b. Make sure the.extep_sion cord.is completly
away from the saw and your body so the cord
cannot becut or becomewrapped aroundyour
•feet or legs. ,
c. Press the trigger to start the chain moving
before beginning the cut.
Begin cutting with the saw frame and spikes
against the log. Figure 17.
Allow the chain to cut for you. Exert onlylight
downwardpressure. Ifyouforcethecut, damage
to the bar,chain or motor can result.
Donor put pressure on the saw at the end of
the cUt to_avoidlosing control Whenthe cut is
_omptete,
g. Release the trigger switch as soon as the Cut
Is completeo,
h. Unplug the unit after each.cutting operation.
mnnln IIIIIILLLLL± II I I II ...................
Check for broken or dcad brencheswhich could
--drives thesawstraightbacktowardth#operator
-Pull-in:
occurswhen thechainonthe bottomofthebar
• : issuddenlystopped.
• --pUl/s thesaw_war_.
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' IIII I , * IIIIII IIIIII UI .... I1!!!IIII .............. _ IIII [ 1
• _ I_, TREE FELLING TECHNIQUES
I. PLAN YOUR SAWING OPERATION CAREFULLY
IN ADVANCE d.
i
a. Clear the work ares. Youneed a clear area all
around the tree where you can have sectJre
footing.
b. Study the natural conditions that can cause
the tree to fall in a particular direction.
1.)The WIND directionandspeed.
2._The LEAN ofthetree.
3.)WEIGHTED wfthBRANCHES on oneside.
4.)Surrounding TREES and OBSTACLES.
:c. Look for decay and rot. If the trunk is rotted, it
cansnap and fall towardtheoperator.
fallon youwhilecutting.
e. Make sure there isenough roomfor the tree to
fall. Maintaina distanceof21/2treelengths fromthe
nearest person orother objects. Motornoise can
drown outwarning call.
t. Remove dirt, stones, loose bark, nails, staples,
and wire from the tree where cuts are to be
made.
g. Plan tostand on the up-hill side whencutting on
a Slope. Figure 17.
h, Plan a clear retreat path to the rear and diagonal
tOthe line offail. Figure!8. _
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