AL-KO 113 365, Original Instructions For Use

Page: 40 / 192

GB
40 CS 36 Li
Working behaviour and working technique
DANGER!
Danger of fatal injury from a falling
tree!
Having no escape route when felling a
tree represents a danger of serious and
even fatal injury!
■
Do not start the felling work until you
are sure there is an unobstructed es-
cape route away from the tree to be
felled.
DANGER!
Danger of fatal injury from an uncon-
trollably falling tree!
Uncontrolled falling trees can lead to ex-
tremely serious and even fatal injury!
■
In order to guarantee controlled
felling of a tree, leave a bridge
between the undercut and the back
cut. The length of this bridge should
be approx. 1/10 of the trunk dia-
meter.
■
Do not carry out any felling work in
windy conditions.
10.3 Branch lopping
Heed the following points during this work:
■
Support the chain saw against the tree trunk
during the work.
■
In the preliminary phase, leave larger, down-
ward-pointing branches that are supporting
the tree (19).
■
Cut off smaller branches with one cut.
■
Pay attention to branches under tension, and
saw through these from underneath upwards
in order to avoid the chain saw becoming
trapped (19).
■
Do not saw off free-hanging branches from
underneath.
■
Only experienced or trained people should
make plunge cuts, longitudinal cuts and bor-
ing cuts (18).
10.4 Cross-cutting
Heed the following points during this work:
■
When working on a slope, always stand uphill
from the tree trunk, because it could roll away
(19).
■
Guide the chain saw so that there is no part
of your body in the extended sweep arc of
the saw chain.
■
Position the bumper spike directly adjacent to
the cut edge and allow the chain saw to pivot
about this point. Do not exert any pressure at
the end of the cut.
■
Make sure that the saw chain does not touch
the ground.
■
At the end of the cut, wait for the saw chain
to come to a halt before you remove the
chain saw.
■
Always switch off the engine of the chain saw
before you go to the next tree.
The entire length of the tree trunk is in contact
with the ground:
■
Saw through the tree trunk from above,
without cutting into the ground (20).
Tree trunk is lying raised at one end:
■
To prevent the chain saw becoming trapped
and the wood splintering, first saw through
1/3 of the trunk diameter from below, then
saw through the remainder from above, down
as far as the cut made from underneath (10).
Tree trunk is lying raised at both ends:
To prevent the chain saw becoming trapped and
the wood splintering, first saw through 1/3 of the
trunk diameter from above, then saw through the
remainder from underneath, up as far as the cut
made from above (11).
DANGER!
Danger of fatal injury due to kickback!
The operator can be fatally injured by
kickback of the appliance.
■
It is essential to comply with the
measures in order to avoid any kick-
back.
10.5 Cutting converted timber (12)
Heed the following points during this work:
■
Use a secure cutting surface (sawing trestle,
wedges, beams).
■
Make sure you are standing securely and
that your bodyweight is evenly distributed.
■
Secure logs to prevent them twisting.
■
Only start the cut once the saw chain is run-
ning. Never switch on the chain saw already
in the kerf.
■
Do not secure the wood with your foot and do
not get another person to hold it.