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Idiomas disponibles
Idiomas disponibles
• (Figure Q) Felling Back
Cut - Make the felling
back cut at least
2 inches (51 ram) higher
than the horizontal
notching cut. 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
O FFA ........
N
FELLING BACK
CUT
/
2 (5cm)
_
IINCHES
-T-
__HINGE
falling in the wrong direction. Do not cut through the hinge.
• (Figure Q) As the felling cut gets close to the hinge the tree
should begin to fall. If there is any chance that the tree may not fall
in the desired direction or it may rock back and bind the saw chain,
stop cutting before the felling cut is complete and use wedges to
open the cut and drop the tree along the desired line of fall. 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.
Limbing
(figure R)
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.
Branches under tension
should be cut from the
bottom up to avoid binding
the chain saw. Trim limbs
from opposite side keeping
tree stem between you
and saw. Never make cuts
with saw between your legs
SUPPORT LIMBS UNTIL LOG IS CUT
or straddle the limb to be cut.
Bucking
Bucking
is cutting a felled tree or log into lengths. How you should
cut depends on how the log is supported. Use a saw horse
(figure W) whenever possible.
Always start a cut with the chain running at full speed and the
ribbed bumper (5) in contact with the wood. To complete the cut
use a pivoting action of the ribbed bumper against the wood.
• (Figure S) When
supported
along its
whole length
Make a cut from the
top (overbuck), but
avoid cutting the earth
as this will dull your
saw quickly.
(Figure T) When
supported
at
one end
First, cut 1/3 the
diameter from
the underside
(underbuck).
Then make the
finished cut by
overbucking to
meet the first cut.
O
j_,l_"2nd
CUT OVERBUCK
A_I_-j_..1_d_'X
(2/3DIAMETER)
_J
.-_(_-Z_,_
TO MEET 1st CUT
TO AVOID PINCHING'
_, _)?''_:_ t,_, _, I_,' _,,;_>"_'_/,
_T O AVOID SPLINTERING
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