Dunsch DU30040-30CTF Instrucciones Originales página 36

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tree, the location of larger branches and the wind direction, as this will help you
to correctly determine the direction in which the tree will fall.
Dirt, stones, loose bark, nails, staples and wire must be removed from the tree.
Fig.14 Fig.15
Fig.16
Making the felling notch (Fig. 17)
Cut a notch (A) at right angles to the fall direction to a depth of 1/3 of the tree
diameter as shown in Fig. 17. First make the lower horizontal felling notch (A).
This prevents the saw chain or the guide rail from becoming trapped when the
second felling notch is made.
Making the felling cut (Fig.18)
The felling cut should be positioned at least 50 mm above the horizontal felling
notch. Make the felling cut (B) parallel to the horizontal felling notch. The felling
cut should be cut to a depth which leaves a thin strip (felling hinge strip) (D)
which can act as a hinge. This strip prevents the tree from rotating and falling in
the wrong direction. Do not cut through the strip. When the felling cut gets close
to the strip the tree should start to fall. If it becomes clear that the tree may well
fall in a different direction to the desired fall direction (C) or it starts to lean back
and traps the saw chain, interrupt the felling cut and insert wedges made of
wood, plastic or aluminum to open out the cut and control the lean of the tree
until it leans in the required direction. When the tree starts to fall, remove the
chainsaw from the cut, switch it off, place it on the ground and exit the danger
zone via the planned escape route. Watch out for falling branches and take care
not to trip.
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