Idiomas disponibles
Idiomas disponibles
Cutting the tree trunk into lengths
Here we are looking at the process of cutting
the felled tree into sections. Make sure you have
a sure footing and distribute your body weight
evenly onto both feet. If possible the trunk should
be underlaid and supported with branches,
beams or wedges. For easy cutting follow the
simple instructions below.
If the full length of the tree trunk is evenly
supported as shown in Fig. 21 then proceed by
cutting from the top down. Take care not to cut
into the ground in the process.
If the weight of the tree trunk is resting on one end
as shown in Fig. 22, fi rst cut through 1/3 of the
trunk diameter from the underside (A) in order to
prevent it from splintering. Make the second cut
from the top (2/3 of the diameter) to the height of
the fi rst cut (B) (this prevents the chain saw from
being trapped).
If the weight of the tree trunk is resting on both
ends as shown in Fig. 23, fi rst cut through 1/3
of the trunk diameter from the top (A) in order
to prevent it from splintering. Make the second
cut from underneath (2/3 of the diameter) to the
height of the fi rst cut (B) (this prevents the chain
saw from being trapped).
When working with the saw on a slope, always
position yourself at a higher point on the slope
above the tree as shown in Fig. 15. In order to
retain full control at the moment when the cut
goes through, reduce pressure towards the end
of the cut without releasing your fi rm grip on the
handles of the chain saw. Take care to ensure
that the chain saw does not touch the ground.
After completing the cut, wait for the chain saw
to come to a standstill before removing the chain
saw. Always switch off the motor of the chain saw
before moving from tree to tree.
7.3 Kickback
The term "kickback" describes what happens
when the running chain saw suddenly kicks
upward and backward. Usually this is caused
by contact between the tip of the bar and the
workpiece or by the saw chain becoming trapped.
In the event of kickback, large forces occur
suddenly and violently. As a result, the chain saw
usually reacts uncontrollably. This can often result
in very serious injuries to the worker or persons
in the vicinity. The risk of kickback is particularly
great when performing cross cuts, angled cuts
and longitudinal cuts, as it is not possible to use
the claw stop on these cuts. You should therefore
avoid these cuts as far as possible and take
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particular care when they are unavoidable.
The risk of kickback is at its greatest when the
saw is positioned for a cut in the region of the tip
of the bar, as the leverage eff ect is greatest there
(Fig. 24). It is therefore safest to position the saw
fl at and as close as possible to the claw stop
before making the cut (Fig. 25).
Warning!
•
Make sure that the chain tension is always
correctly adjusted.
•
Only use a chain saw if it is in perfect working
order.
•
Only work with a saw chain that has been
properly sharpened in accordance with the
instructions.
•
Never operate the saw above shoulder height.
•
Never cut with the upper edge or the tip of the
bar.
•
Always hold the chain saw firmly with both
hands.
•
Whenever possible, use the claw stop as a
leverage point.
Cutting wood which is under tension
Special care is required when cutting wood which
is under tension. Cutting wood which is under
tension can release the tension, causing the
wood to react out of control. In the worst case
this could result in extremely severe or even fatal
injuries (Fig. 26-28).
This type of work must be performed only by
specially trained persons.
8. Replacing the power cord
Danger!
If the power cord for this equipment is damaged,
it must be replaced by a special power cord which
is available from the manufacturer or a service
center.
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28.11.2023 13:11:16
28.11.2023 13:11:16
