GB
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.
•
Change position to saw off branches
on the other side of the trunk.
•
Branches sticking out are cut off sepa-
rately.
Felling trees
A lot of experience is necessary
in felling trees. Cut down trees
only when you can safely han-
dle the electric chainsaw. In no
case should you use the electric
chainsaw if you feel unsure
about anything.
•
Ensure that no people or animals
are in the field of action. The safety
distance between the tree to be felled
and the nearest-located workplace
must be 2 ½ tree lengths.
•
Note the felling direction:
The user must be able to move safely
near the felled tree, to saw off the tree
easily and remove branches.It is to
be avoided that the felled tree snags
itself on another tree. Note the natural
felling direction, which is dependent
on the slope and curvature character-
istic of the tree, wind direction and the
number of branches.
•
In the case of sloping ground, stand
above the tree to be felled.
•
Small trees, with a diameter of 15-18
cm, can usually be sawn off with one
cut.
•
In case of trees with a larger diameter,
a notched cut and a back cut must be
implemented (see diagram
154
P
Q
).
Q
Do not fell any trees when a
strong or changing wind is blow-
ing, if the danger of property
damage exists or if the tree could
fall on electric wires.
Immediately after termination of
the sawing procedure, remove the
ear protection so that you can hear
hooter and alarm signals.
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 the bottom,
horizontal cut. The cut depth
should be around 1/3 of the
trunk diameter. This will prevent
the saw chain or the guard rails
from jamming when placing the
second chamfer. Now make a
slanted saw cut from above at
an angle of roughly 45° to meet
exactly with the bottom saw cut.
Never step in front of a tree
which is notched.