Snapper SC60V Manual De Instrucciones página 14

HINGE
2" (5 cm) OR 1/10 DIA
BACK CUT
2" (5 cm)
Back Cut
Wedge
REMOVING BUTTRESS ROOTS
A buttress root is a large root extending
from the trunk of the tree above the ground.
Remove large buttress roots prior to felling.
Make the horizontal cut into the buttress
first, followed by the vertical cut. Remove the
resulting loose section from the work area.
Follow the correct tree felling procedure as
stated in Proper Procedure For Tree Felling
after you have removed the large buttress
roots.
OPERATION
NOTCH -
APPROX. 1/3
DIAMETER OF
TRUNK
Hinge
Vertical
Cut
Loose
Section
Horizontal
Cut
BUCKING
Bucking is the term used for cutting a fallen
tree to the desired log length.
• Always make sure your footing is secure and
your weight is distributed evenly on both feet.
• Cut only one log at a time.
• Support small logs on a saw horse or
another log while bucking.
• Keep a clear cutting area. Make sure that no
objects can contact the guide bar nose and
chain during cutting, this can cause kickback.
Refer to Kickback earlier in this manual.
• When bucking on a slope, always stand on
the uphill side of the log. To maintain complete
control of the chain saw when cutting through
the log, release the cutting pressure near the
end of the cut without relaxing your grip on
the chain saw handles. Do not 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.
BUCKING WITH A WEDGE
If the wood diameter is large enough for
you to insert a soft bucking wedge without
touching the chain, you should use the wedge
to hold the cut open to prevent pinching.
BUCKING LOGS UNDER STRESS
Make the first bucking cut 1/3 of the way
through the log and finish with a 2/3 cut on
theopposite side. As you cut the log, it will
tend to bend. The saw can become pinched
or hung in the log if you make the first cut
deeper than 1/3 of the diameter of the log.
Give special attention to logs under stress to
prevent the bar and chain pinching.
OVERBUCKING
Begin on the top side of the log with the
bottom of the saw against the log; exert light
pressure downward. Note that the saw will
tend to pull away from you.
UNDERBUCKING
Begin on the under side of the log with the top
of the saw against the log; exert light pressure
upward. During under bucking, the saw will
tend to push back at you. Be prepared for this
reaction and hold the saw firmly to maintain
control.
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