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Ryobi RCS3535B Manuel D'utilisation page 42

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WARNINg:
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See Figure 20
DO NOT operate the throttle trigger with your left
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hand and hold the front handle with your right
hand. Never allow any part of your body to be in
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the chain line while operating a saw.
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PROPER CuTTINg STANCE
See Figure 21.
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Balance your weight with both feet on solid ground.
Keep left arm with elbow locked in a "straight arm"
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position to withstand any kickback force.
Keep your body to the left of the chain line.
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Keep your thumb on underside of handlebar.
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WORk AREA PRECAuTIONS
See Figure 22.
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Cut only wood or materials made from wood
Never allow children to operate the saw. Do not Allow
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persons to use this chainsaw who have not read this
operator's manual or received adequate instructions
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for the safe and proper use of this chainsaw.
Keep helpers, bystanders, children, and animals,
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a SAFE dISTANCE from the cutting area. During
felling operations, the safe distance should be a least
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twice the height of the largest trees in the felling area.
During bucking operations, keep a minimum distance
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of 5 metres between workers.
Always cut with both feet on solid ground to prevent
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being pulled off balance.
Do not cut above chest height as a saw held higher is
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difficult to control against kickback forces.
Do not fell trees near electrical wires or buildings.
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Leave this operation for professionals.
Cut only when visibility and light are adequate for you
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to see clearly.
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BASIC OPERATINg/CuTTINg
PROCEduRES
Practice cutting a few small logs using the following
technique to get the "feel" of using the saw before you
begin a major sawing operation.
Take the proper stance in front of the wood with the
saw idling.
Accelerate the engine to full throttle just before
entering the cut by squeezing the throttle trigger.
Begin cutting with the saw against the log.
Keep the engine at full throttle the entire time you are
cutting.
Allow the chain to cut for you; exert only light
downward pressure. Forcing the cut could result in
damage to the bar, chain, or engine.
Release the throttle trigger as soon as the cut is
completed allowing the engine to idle. Running the
saw at full throttle without a cutting load can result in
unnecessary wear to the chain, bar, and engine.
Do not put pressure on the saw at the end of the
cut as this may cause the saw to drop in an unsafe
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English
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manner.
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OPERATION
FELLINg TREES IN HAZARdOuS CONdITIONS
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WARNINg:
Do not fell trees during periods of high wind or
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heavy rain. Wait until the hazardous weather
has ended. When felling a tree, it is important
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that you heed the following warnings to prevent
possible serious injury.
NO
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Do not cut down trees having extreme lean or large
trees with rotten limbs, loose bark, or hollow trunks.
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Have these trees pushed or dragged down with
heavy equipment, then cut them up.
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Do not cut trees near electrical wires or buildings.
HU
Check the tree for damaged or dead branches that
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could fall and hit you during felling.
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Periodically glance at the top of the tree during the
back cut to assure the tree is going to fall in the
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desired direction.
If the tree starts to fall in the wrong direction, or if the
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saw gets caught or hung up during the fall, leave the
saw and save yourself!
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PROPER PROCEduRE FOR TREE
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FElling
See Figures 23 - 26.
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Pick your escape route (or routes in case the
intended route is blocked). Clear the immediate
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area around the tree and make sure there are no
obstructions in your planned path of retreat. Clear
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the path of safe retreat approximately 135° from the
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planned line of fall.
Consider the force and direction of the wind, the lean
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and balance of the tree, and the location of large
limbs. These things influence the direction in which
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the tree will fall. Do not try to fell a tree along a line
different from its natural line of fall.
Cut a notch about 1/3 the diameter of the trunk in the
side of the tree. Make the notch cuts so they intersect
at a right angle to the line of fall. This notch should
be cleaned out to leave a straight line. To keep the
weight of the wood off the saw, always make the
lower cut of the notch before the upper cut.
Make the back cut level and horizontal, and at a
minimum of 2 in. above the horizontal cut of the
notch.
Note: Never cut through to the notch. Always leave
a band of wood between the notch and back cut
(approximately 2 in. or 1/10 the diameter of the tree).
This is called a "hinge" or "hinge wood." It controls
the fall of the tree and prevents slipping or twisting or
shoot back of the tree off the stump.
On large diameter trees, stop the back cut before
it is deep enough for the tree to either fall or settle
39
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Ce manuel est également adapté pour:

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