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saw 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 felling cut from the
other side of the trunk while stan-
ding to the left of the trunk and
sawing with the saw chain in a
pulling direction (with the under-
side of the blade bar). 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 desig-
nated as a break dimension.
The hinge prevents the tree from
turning and falling in the wrong
direction. Do not cut through the
hinge.
If it becomes apparent that the
tree might not fall in the desired
direction or if it bends back, and
if the saw chain is stuck, discon-
tinue the felling cut. Use wooden,
plastic or aluminium wedges to
open the cut and fell the tree to
fall into the desired fall line. fall
into the desired fall line.
5. Insert a felling wedge or a crow-
bar into the back cut, as soon 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 us-
ing 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 pre-
vent 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 pos-
sible, the weight of the saw should rest
on the log.
• Change position to saw off branches on
the other side of the trunk.
• Branches sticking out are cut off sepa-
rately.
• Cut off smaller branches, as shown in
Figure
, in one go.
GB
MT
45
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