AL-KO EKS 2000/35 Manual De Instrucciones página 35

W orking behaviour and w orking technique
5. If the tree falls whilst you are sawing:
■ Interrupt the back cut if the tree does fall
in the wrong direction or leans back and
traps the chain saw. To open the cut and
fell the tree, drive in wedges in the direc­
tion of the required felling line.
■ Immediately pull the chain saw from the
cut, switch it off and put it down.
■ Walk away in the direction of the escape
route.
■ Watch out for falling branches and twigs.
6. If the tree remains standing, drive wedges into
the back cut in order to cause it to fall in a
controlled way.
7. At the end of sawing work, immediately re­
move your ear defenders and listen out for si-
gnals or warning calls.
Only use wedges made from wood, plas-
tic or aluminium.
A DANGER!
Danger of fatal injury from a falling tree!
Having no escape route represents a
danger of serious and even fatal injuries!
Do not start the felling work until you
are sure there is an unobstructed escape
route away from the tree to be felled.
A DANGER!
Danger of fatal injury from a falling tree!
Uncontrolled falling of a tree can lead to
extremely serious and even fatal injuries!
Do not carry out any felling work in windy conditions.
A
DANGER!
Danger of fatal injury from an uncontroll-
ably falling tree!
Uncontrolled falling trees can lead to ex-
tremely serious and even fatal injuries!
In order to guarantee controlled felling of
a tree, leave a bridge between the un-
dercut and the back cut. The length of
this bridge should be approx. 1/10 of the
trunk diameter.
Branch lopping
Bear the following points in mind during this work:
■ Support the chain saw against the tree trunk
during the work.
440105 a
■ In the preliminary phase, leave larger, down-
ward-pointing branches that are supporting
the tree (21).
■ 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 (21).
■ Do not saw off free-hanging branches from
underneath.
■ Only experienced or trained people should
make plunge cuts, longitudinal cuts and bo-
ring cuts.
C ross-cutting
Bear the following points in mind during this work:
■ When working on a slope, always stand uphill
from the tree trunk, because it could roll away
(25).
■ 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 motor of the chain saw
before you move to the next tree.
The entire length of the tree trunk is in contact with
the ground:
■ Saw through the tree trunk from above, wi-
thout cutting into the ground (22).
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 (23).
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 (24)
ALKO
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