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Stihl MSA 60.0 C Notice D'emploi page 17

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7 Proper Techniques for Basic Bucking, Limbing, Pruning and Felling
► Never work on a ladder, on a roof, in a tree
or while standing on any other insecure
support.
► Never operate the chain saw above shoul‐
der height or cut overhead.
► Do not overreach.
► If you are unable to follow these instruc‐
tions, you must use a different tool, such as
a pole pruner, or have the work performed
by a reputable tree service.
■ To reduce the risk of injury:
► Never stand directly underneath the branch
you are cutting.
► Watch for falling branches. As soon as the
branch starts to fall, step aside and keep a
sufficient distance away from the falling
wood. A branch may spring back at you
after it hits the ground.
► Prior to beginning work, clear the work area
of limbs and brush to reduce the risk of trip‐
ping and losing control of the chain saw.
To cut branches from a standing tree:
1
► Make the first cut (1) on the underside of the
branch, approximately 2 in. (5 cm) from the
trunk. Cut through approximately 1/4 of the
diameter of the branch. This will help prevent
the branch from splintering after it is cut.
► Make the second cut (2) on the top side of the
branch, approximately 2 in. (5 cm) from the
first cut.
► As soon as the branch starts to fall, withdraw
the chain saw and let the branch fall to the
ground.
7.5
Cutting Logs Under Tension
1
2
0458-022-8201-A
2
2
1
WARNING
■ There is an increased danger of pinching the
chain saw when cutting logs under tension.
The tension in wood can also release sud‐
denly and with great force, propelling the log,
limb or chain saw into the saw operator, caus‐
ing injury or loss of control.
■ To reduce the risk of severe or fatal personal
injury from reactive forces, including kickback,
or loss of control when cutting wood under
tension:
► Always start with a relieving cut (1) at the
compression side of the log, and then make
a bucking cut (2) at the tension side.
► If a pinch occurs that traps the bar/chain,
switch off the motor, activate the chain
brake, remove the battery and remove the
saw from the log, exercising caution that
the limb does not suddenly snap or release.
■ Working in areas where logs, limbs and roots
are tangled is extremely dangerous.
► Drag the logs, limbs and other material to
be cut into a clear area before cutting. Pull
out exposed and cleared logs first. Do not
cut where the tip of the bar may come into
contact with other logs, limbs or leafy mate‐
rial.
7.6
Felling
7.6.1
Felling Conditions
Felling is cutting down a tree. Before felling a
tree, carefully consider all of the conditions that
may affect the direction of fall.
WARNING
■ This chain saw is not designed for felling large
trees, and using it to cut large trees could
result in an inability to control the fall of the
tree or limb, and can lead to serious or fatal
personal injury.
■ Before starting the felling operation, make
sure the saw you are using has sufficient size,
power and run time to complete the felling
operation efficiently and without re-charging.
Alternatively, have multiple charged batteries
available for use, select a more powerful chain
saw, select a more powerful battery, or consult
a reputable tree removal professional.
■ There are a number of factors that may affect
and change the intended direction of fall, e.g.
wind direction and speed, lean of tree, sur‐
rounding trees and obstacles, sloping ground,
one-sided limb or foliage structure, wood
structure, decay, snow load, etc.
English
17

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Msa 70.0 c