Ryobi RCS4240B Mode D'emploi page 31

WARNING
Do not operate the throttle trigger with your left hand
and hold the front handle with your right hand. Never
allow any part of your body to be in the chain line while
operating a saw.
PROPER CUTTING STANCE
See figure 21.
■ Balance your weight with both feet on solid ground.
■ Keep left arm with elbow locked in a "straight arm"
position to withstand any kick-back force.
■ Keep your body to the left of the chain line.
■ Keep your thumb on underside of handlebar.
WORK AREA PRECAUTIONS
See figure 22.
■ Cut only wood or materials made from wood; no sheet
metal, no plastics, no masonry, no non-wood building
materials.
■ Never allow children to operate your saw. Allow no
person to use this chainsaw who has not read this
operator's manual or received adequate instructions
for the safe and proper use of this chainsaw.
■ Keep everyone – helpers, bystanders, children, and
animals, a safe distance from the cutting area. During
felling operations, the safe distance should be at least
twice the height of the largest trees in the felling area.
During bucking operations, keep a minimum distance
of (4.5 m) 15 ft between workers.
■ Always cut with both feet on solid ground to prevent
being pulled off balance.
■ Do not cut above chest height as a saw held higher is
difficult to control against kick-back.
■ Do not fell trees near electrical wires or buildings.
Leave this operation for professionals.
■ Cut only when visibility and light are adequate for you
to see clearly.
BASIC OPERATING/CUTTING PROCEDURES
Practise cutting a few small logs using the following
technique to get the "feel" of using your 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
English (Original instructions)
■ Allow the chain to cut for you; exert only light downward
■ Release the throttle trigger as soon as the cut is
■ Do not put pressure on the saw at the end of the cut.
FELLING TREES – HAZARDOUS CONDITIONS
Do not fell trees during periods of high wind or heavy
precipitation. Wait until the hazardous weather has
ended. When felling a tree, it is important that you
heed the following warnings to prevent possible serious
injury.
■ Do not cut down trees having an extreme lean or large
■ Do not cut trees near electrical wires or buildings.
■ Check the tree for damaged or dead branches which
■ Periodically glance at the top of the tree during the
■ If the tree starts to fall in the wrong direction, or if the
PROPER PROCEDURE FOR TREE FELLING
See figure 23 - 26.
■ Pick your escape route (or routes in case the intended
■ Consider the force and direction of the wind, the lean
■ Cut a notch about 1/3 the diameter of the trunk in the
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cutting.
pressure. Forcing the cut could result in damage to the
bar, chain, or engine.
completed, allowing the engine to idle. Running the
saw at full throttle without a cutting load may result in
unnecessary wear to the chain, bar, and engine.
WARNING
trees with rotten or dead limbs, loose bark, or hollow
trunks. Have these trees pushed or dragged down with
heavy equipment, then cut them up.
could fall and hit you during felling.
back-cut to assure the tree is going to fall in the
desired direction.
saw gets caught or hung up during the fall, leave the
saw and save yourself!
route is blocked). Clear the immediate area around the
tree and make sure there are no obstructions in your
planned path of retreat. Clear the path of safe retreat
approximately 135° from the planned line of fall.
and balance of the tree, and the location of large limbs.
These things influence the direction in which the tree
will fall. Do not try to fell a tree along a line different
from its natural line of fall.
side of the tree. Make the notch cuts so they intersect
at right angles 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.