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Felling a tree
EN
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When bucking and felling operations are being
performed by two or more persons at the same time,
the felling operation should be separated from the
bucking operation by a distance of at least twice the
height of the tree being felled. Trees should not be
felled in a manner that would endanger any person,
strike any utility line or cause any property damage.
If the tree does make contact with any utility line, the
utility company should be notified immediately.
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The chain saw operator should stand on the uphill
side of the terrain, as the tree is likely to roll or slide
downhill after it is felled.
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An escape path should be planned and cleared as
necessary before cuts are started. The escape path
should extend back and diagonally to the rear of the
expected line of fall as Fig. T shown.
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Before felling is started, consider the natural lean of
the tree, the location of larger branches and the wind
direction to judge which way the tree will fall.
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Remove dirt, stones, loose bark, nails, staples and wire
from the tree.
Notching undercut
Make the notch 1/3 the diameter of the tree,
perpendicular to the direction of falls as Fig. U shown.
Make the lower horizontal notching cut first. This will help
to avoid pinching either the saw chain or the guide bar
when the second notch is being made.
Felling back cut
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Make the felling back cut at least 50 mm higher than
the horizontal notching cut as Fig. U shown. Keep the
felling back cut parallel to the horizontal notching cut.
Make the felling back cut so enough wood is left to
act as a hinge. The hinge wood keeps the tree from
twisting and falling in the wrong direction. Do not cut
through the hinge.
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As the felling gets close to the hinge, the tree should
begin to fall. If there is any chance that the tree may
not fall in desired direction or it may rock back and
bind the saw chain, stop cutting before the felling back
cut is complete and use wedges of wood, plastic or
aluminium to open the cut and drop the tree along the
desired line of fall.
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When the tree begins to fall remove the chain saw
from the cut, stop the motor, put the chain saw
down, then use the retreat path planned. Be alert for
overhead limbs falling and watch your footing.
14
56 VOLT LITHIUM-ION CORDLESS CHAIN SAW — CS1400E/CS1600E
Fig. T & U parts description see below:
T-1 Felling direction
U-2 Notch
T-2 Safety retreat path
U-3 Felling back cut
U-1 Direction of fall
U-4 Hinge
Limbing a tree
Limbing is removing the branches from a fallen tree.
When limbing leave larger lower limbs to support the
log off the ground. Remove the small limbs in one cut as
Fig. V shown. Branches under tension should be cut from
the bottom up to avoid binding the chain saw.
Bucking a log
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Bucking is cutting a log into lengths. It is important to
make sure your footing is firm and your weight is evenly
distributed on both feet. When possible, the log should
be raised and supported by the use of limbs, logs or
chocks. Follow the simple directions for easy cutting.
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When the log is supported along its entire length as
Fig. W1 shown, it is cut from the top (overbuck).
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When the log is supported on one end, as Fig. W2
shown, cut 1/3 the diameter from the underside
(underbuck). Then make the finished cut by
overbucking to meet the first cut.
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When the log is supported on both ends, as Fig. W3
shown, cut 1/3 the diameter from the top (overbuck).
Then make the finished cut by underbucking the lower
2/3 to meet the first cut.
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When bucking on a slope always stand on the uphill
side of the log, as Fig. X shown.
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When "cutting through", to maintain complete control
release the cutting pressure near the end of the cut
without relaxing your grip on the chain saw handles.
Don't let the chain contact the ground. After completing
the cut, wait for the saw chain to stop before you move
the chain saw. Always stop the motor before moving
from tree to tree.
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