1. Removal of branches:
Remove hanging branches by
positioning the cut from above
the branch. With removal of
branches, never work higher
than shoulder level.
2. Escape area:
Remove the undergrowth around
the tree to ensure an easy
escape. The escape area (1)
should be around 45° either side
behind the planned felling direc-
tion (2).
3. Cutting notch (A):
Make a felling notch in the direc-
tion in which you wish the tree to
fall. Start with an upper sawing
cut.
Now make a sawcut below,
which runs horizontally and en-
counters the upper sawcut
exactly.
The depth of cut of the notch
should be approx. 1/3 of the
trunk diameter and the cutting
angle at least 45°.
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 not less
than 5 cm above the horizontal
notched cut.
The back cut should be so deep
that the separation distance
between 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 dimen-
sion. The stay prevents the tree
from turning and falling in the
wrong direction. Do not saw
through the stay.
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. If it becomes
apparent that the tree may not
fall in the required direction or is
leaning back, and the saw chain
is jamming, stop felling and use
wedges made of wood, plastic or
aluminium to open the cut and to
tilt the tree in the required felling
line.
5. If the trunk diameter is larger
than the length of the chain bar,
make two cuts.
For safety reasons, we advise
inexperienced users not to fell
any logs with a rail length which is
smaller than the trunk diameter.
6. 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.
GB
145