95
GB
as the depth of cut permits this,
in order to prevent a jamming of
the chain bar.
6. If the trunk diameter is larger
than the length of the chain bar,
make two cuts.
7. After carrying out of the back
cut, the tree falls by itself or with
the aid of the felling wedge or
crowbar.
As soon as the tree begins to
fall, pull out the saw from the
section, stop the motor, place
the electric chainsaw down and
leave the workplace using the
withdrawal path.
Pay attention to falling branches
and do not stumble.
Limbing
Limbing is the designation for the sawing off
of branches and boughs from a felled tree.
Many accidents occur during the
removal of branches. Never cut
tree limbs when you are standing
on the log. Keep the spring-back
area in mind if branches are under
tension.
• Do not remove support branches until
after the sawing off.
• Branches under tension must be
sawed from below to above, in order
to prevent jamming of the chainsaw.
• When working on thicker branches,
use the same technique as when you
are sawing up a felled trunk. Work
to the left of the log and as near as
possible to the electric chainsaw. As
far as possible, the weight of the saw
should rest on the log.
be around 1/3 of the trunk diam-
eter. Now make a slanted saw
cut from above at an angle of
roughly 45° to meet exactly with
the bottom saw cut.
This helps avoiding that the
chainsaw or the guide rail jams
when making the second chip
carving.
Never step in front of a tree
which is notched.
4. Felling back cut (B):
Make the back cut from the other
side of the log, where you stand
to the left of the log and saw with
the chainsaw pulling. The back
cut must run horizontally 5 cm
above the horizontal notched cut.
The back cut should be so deep
that the separation distance be-
tween the back cut and the notch
cutting line is at least 1/10 of the
trunk diameter. The part of the log
not sawed through is designated
as a break dimension.
The hinge prevents the tree from
turning and falling in the wrong
direction. Do not cut through the
hinge.
When the felling cut nears the
hinge, the tree should begin to
fall. If it becomes apparent that
the tree might not fall in the de-
sired direction or if it bends back,
and if the chainsaw is stuck, dis-
continue the felling cut and use
wooden, plastic or aluminium
wedges to open the cut and fell
the tree to fall into the desired
fall line.
5. Insert a felling wedge or a crow-
bar into the back cut, as soon
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