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Idiomas disponibles
FELLING
LARGE
TREES
(6 h_ches (15 crn) h_diameter
or larger)
The notch method is used to fell large trees.
A notch is cut on the side of the tree h_the de-
sired direction
of fall. After
a felling
cut is
made on the opposite
side of tree, the tree
will tend to fall into the notch.
NOTE:
If the tree has large buttress
roots,
remove them before maMng the notch.
Ifus-
ing saw to remove buttress
roots, keep saw
chain from contacth_g ground to prevent dull-
ing of the chain.
NOTCH
CUT
AND
FELLING
THE
TREE
• Make
notch cut by cutting
the top of the
notch first. Cut through
1/3 of the diameter
of the tree. Next complete the notch by cut-
ting the bottom of the notch. See illustra-
tion. Once
the notch
is cut remove
the
notch of wood from the tree.
Final (felling) cut here. 2 inches
(5 sin) above center of notch.
First cut
}
.2';
I
/
÷ I//
• After removing
the wood from the notch,
make the felling cut on the opposite side of
the notch. This is done by making a cut about
two inches (5 cm) higher than the center of
the notch. This will leave enough uncut wood
between the felling cut and the notch to form
a hinge. This hinge will help prevent the tree
from falling in the wrong direction.
Hinge
holds tree on stump and helps
control fall
Opening
of felling
• DO NOT cut down a partialIy fallen tree
with your saw. Be extremely
cautious with
partially
fallen trees
that may
be poorly
supported.
When a tree doesn't fall com-
pletely, set the saw aside and pull down the
tree with a cable winch, block and tackle,
or tractor.
CUTTING
A FALLEN
TREE
(BUCKING)
Bucking
is the term used for cutting a fallen
tree to the desired
log size.
i_
WARNING:
Do not stand
on the log
being cut. Any portion can roll causing
loss
of footing and control.
Do not stand downhill
of the log being cut.
IMPORTANT
POINTS
• Cut only one log at a time.
• Cut shattered
wood very carefully;
sharp
pieces of wood could be flung toward opera-
tor.
• Use a sawhorse
to cut small logs.
Never
allow another
person to hold the log while
cutting and never hold the log with your leg
or foot.
• Do not cut in an area where
logs. limbs,
and roots are tangled
such as in a blown
down area.
Drag the logs into a clear area
before cutting
by pulling out exposed
and
cleared
logs first.
TYPES
OF CUTTING
USED
FOR
BUCKING
,_WARNING:
if saw
becomes
pinched
or hung in a log, don't try to force it
out, You can lose control ofthe saw resulting
in injury and/or damage
to the saw. Stop the
saw, drive a wedge of plastic or wood into the
cut until the saw can be removed
easily. Re-
start the saw and carefully
reenter the cut. To
avoid kickback
and chain damage,
do not
use a metal wedge.
Do not attempt to restart
your saw when it is pinched or hung in a Iog.
Use a wedge
to remove
pinched
saw
Closing
of
notch
NOTE:
Before felting cut is complete,
use
wedges
to open
the cut if necessary
to
control the direction
of fail. To avoid kickback
and
chain
damage,
use wood
or plastic
wedges,
but never steel or iron wedges.
• Be alert to signs that the tree is ready to
fall: cracking
sounds,
widening
of the fell-
ing
cut,
or
movement
in
the
upper
branches.
• As tree starts to fall stop saw. put it down,
and get away quickly
on your planned
re-
treat path.
Turn saw OFF and use a plastic or
wooden wedge
to force cut open.
Overcutting
begins on the top side of the log
with the bottom of the saw against
the tog.
When
overcutting
use light downward
pres-
sure.
_=_Ivercutting
:_
Undercutting
involves
cutting on the under-
side of the log with top of saw against the log.
When
undercutting
use light upward
pres-
sure.
Hold saw firmly and maintain
control.
The saw will tend to push back toward you.
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