Stihl MSE 141 C Instruction Manual page 30

English
► Be aware of conditions such as wind, limb and foliage
structure, tree lean, the slope of the terrain and other
factors that could alter the direction of fall.
► Cut down at a 45° angle to a depth of approximately 1/5 to
1/4 of the trunk diameter.
► Make a horizontal cut that meets the bottom of the first cut.
► Remove the resulting 45° piece. The size of the wedge will
vary by tree size. The larger the tree, the larger the wedge.
This model chain saw is not intended for felling large
diameter trees.
8.6.4 Open-faced Notch
For an open-faced notch:
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► The felling notch determines the direction of the tree's fall.
Make the felling notch perpendicular to the line of fall you
have determined, close to the ground.
► Be aware of conditions such as wind, limb and foliage
structure, tree lean, slope of the terrain and other factors
that could alter the direction of fall.
► Cut down at a 50° angle to a depth of approximately 1/5 to
1/4 of the trunk diameter.
► Make a second cut that meets the bottom of the first cut
from below at a 40° angle.
► Remove the resulting 90° piece. The size of the wedge will
vary by tree size. The larger the tree, the larger the wedge.
This model chain saw is not intended for felling large
diameter trees.
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8 Proper Techniques for Basic Bucking, Limbing, Pruning and Felling
8.6.5
Sapwood cuts help prevent soft woods in summer from
splintering when they fall:
► Make cuts at both sides of the trunk, at the same height as
the subsequent felling cut. Make sure the saw you are
C
using has sufficient size, power and run time to complete
the felling operation efficiently. This model chain saw is
not intended for felling large diameter trees.
► Cut no deeper than the width of guide bar.
8.6.6
￭ If the tip of the bar contacts a wedge that has been used
to help keep the kerf or cut open, it may cause kickback.
Wedges should be of wood or plastic and never steel,
which can damage the chain.
￭ In order to reduce the risk of personal injury, never stand
directly behind the tree when it is about to fall, since part
of the trunk may split and come back towards the operator
(barber-chairing), or the tree may jump backwards off the
stump.
￭ Always keep to the side of the falling tree. When the tree
starts to fall, withdraw the bar, release the trigger switch,
engage the chain brake and walk away briskly on the pre-
planned escape path.
￭ Watch out for limbs falling from the felled tree.
Sapwood Cuts
Felling Back Cut
WARNING
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