ATIKA KS 2001, Operating Manual

Page: 24 / 179

23
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Avoid cutting of thin bosk and lumber. The chain saw is
not suitable for those works.
+
Carry out longitudinal cuts with special care as the claw
stopper is not used. Avoid saw backstroke by guiding
the saw with a small angle.
+
When working at a slope take always the position above
or on the side of the trunk or the lying sawing material
respectively. Pay attention to rolling trunks.
Additional advices for sawing
timber under tension/release
If perches, trees or wood under tension become free of
tension by sawing extreme caution is demanded. The
sawing material can react completely uncontrolled and
result in heavy injuries or death.
Such works shall only be carried out by instructed
specialists.
For all works set always first of all on the pressure
side
n
the releasing cut and then the dividing cut
o
-
otherwise the chain saw can jam or strike back.
Wood on the upper side in tension 17
n
Place one cut (one third of the diameter of the trunk)
from the bottom up.
o
Then place a second cut on the same point from top
which cuts through the trunk.
Wood on the lower side in tension 18
n
Place one cut (one third of the diameter of the trunk)
from top to bottom.
o
Then place a second cut on the same point from
bottom which cuts through the trunk.
Strong trunks and strong tension 19
n
Place one cut (one third of the diameter of the trunk)
from buttom up.
o
Then place a second cut with distance to the first cut
from top which cuts through the trunk.
Cutting off of perches 20
n
Set 15 cm away from the trunk a cut from the bottom
up (one third of the trunk diameter).
o
Then place from top the second cut appr. 8 cm more
outside which cuts through the perch.
p
For removing the remaining part cut the perch close to
the trunk from bottom one third.
q
Place from top the second cut which removes the
remaining part.
Additional advices for chopping
down trees
Always wear a helmet in order to protect yourself
against perches falling down.
+
Pay attention to the length of the sword. Only those
trees shall be chopped down which have a trunk
diameter which is smaller than the length of the sword.
+
Before chopping down safeguard the working area.
Make sure that there are no persons or animals in the
fall area (minimum distance 2 tree lengths).
+
Make sure that the working area around the trunk is
free of risk to stumble and that you have an escape
route which is free of obstacles.
+
Provide for a safe standing position.
+
Hint:
Before chopping the tree decide on the chopping
direction. Consider in this case the balance point of the
treetop, neighbour trees, slope direction, state of health
of the tree and the wind direction. On this side the kerf
is cut in.
+
Chopping a tree:
B
Clean the working area at the trunk from molesting
perches, brushes and obstacles.
B
Clean thouroghly the trunk foot – sand, stones and
other foreign objects make the saw chain edgeless.
B
Consider the state of health of the tree – be careful
with trunks with damages or deadwood (droughty,
rotten or dead wood).
B
Cut a kerf with the saw of approximately one third of
the tree diameter into the trunk. First of all place the
horizontal cut and then as secondly a cut from top in
an angle of 45°.
B
Now saw on the opposite side of the trunk a
horizontal chopping cut. This cut should be placed a
bit higher (appr. 4 cm) than the horizontal cut of the
kerf.
B
By no means cut through the trunk. Appr. 1/10 of the
trunk diameter must remain. If the tree starts falling
ahead of time pull out the chain saw immediately out
of the cut and step back or to the side.
B
Push a key into the horizontal chopping cut in order
to make the tree falling.
B
Pay attention, when tree starts falling, to perches or
twigs falling down.