Idiomas disponibles
Idiomas disponibles
Work Area Precautions
• Cut only wood or materials made from wood, no
sheet metal, no plastics, no masonry, no non-wood
building materials.
• Never allow children to operate the saw. Allow no
person to use this chainsaw who has not read this
Operator's Manual or received adequate instructions
for the safe and proper use of this chainsaw.
• When blocking a tree, keep everyone - helpers,
bystanders, children, and animals - a safe distance
from the cutting area. During blocking operations, the
safe distance should be a least twice the height of the
largest trees in the blocking area. Trees should not be
blocked 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.
• Do not operate a chainsaw on a ladder, rooftop, or
other unstable support.
• Do not cut above shoulder height, as a saw held
higher is difficult to control against kickback forces.
• Do not fell trees near electrical wires or buildings.
Leave this operation for professionals.
• Cut only when visibility and light are adequate for
you to see clearly.
• Check work area for hazards such as bees, rodents,
snakes, etc., that may live in trees or brush.
Blocking Trees
Hazardous Conditions
When blocking (removing sections from a standing
tree) a tree, it is important that you follow these
warnings and instructions to prevent possible seri-
ous injury.
Do not block trees during periods
WARNING
of high wind or heavy precipitation.
Wait until the hazardous weather has ended.
Closely check for broken or dead branches,
which could fall while cutting and do not cut
near buildings or electrical wires if you do not
know the direction of tree fall. Do not cut at night
or during bad weather conditions, such as rain,
snow, or strong winds, which can reduce vis-
ibility and control of the chainsaw. If the tree you
are blocking makes contact with any utility line,
you should discontinue use of the chainsaw and
immediately notify the utility company. Failure to
follow these instructions could result in death or
serious personal injury.
These basic blocking techniques are not intended
to substitute for the judgment of an experienced
professional. Your circumstance may require
a different type of notch or technique. Always
exercise good professional judgment and dis-
cretion when evaluating how to safely complete
a cutting task.
• Do not cut down trees having an extreme lean or
large trees with rotten limbs, loose bark, or hollow
trunks. Have these trees pushed or dragged down
with heavy equipment, then cut them up.
• Do not cut trees near electrical wires or buildings.
• Check the tree for damaged or dead branches that
could fall and hit you during felling.
• Periodically glance at the top of the tree during
the backcut to assure the tree is going to fall in the
desired direction.
• If the tree starts to fall in the wrong direction, or if
the saw gets caught or hung up during the fall, leave
the saw and save yourself!
• Blocking a tree - When bucking and blocking opera-
tions are being performed by two or more persons,
at the same time, the blocking operation should be
separated from the bucking operation by a distance
of at least twice the height of the tree being blocked.
Trees should not be blocked 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.
• Before felling is started, consider the force and
direction of the wind, the lean and balance of the
tree, and the location of large limbs. These things
influence the direction in which the tree will fall. Do
not try to fell a tree along a line different from its
natural line of fall.
• Remove dirt, stones, loose bark, nails, staples, and
wire from the tree where felling cuts are to be made.
• Notched Undercut (a notch cut in a tree that directs
the tree's fall). Cut a notch about 1/3 the diameter of
the tree, perpendicular to the direction of fall. Make
the cuts of the notch so they intersect at a right angle
to the line of fall. This notch should be cleaned out
to leave a straight line. To keep the weight of the
wood off the saw, always make the lower cut of the
notch before the upper cut.
Back Cut
2"
Back Cut
Hinge
Never cut through to the notch
WARNING
when making a backcut. The hinge
controls the fall of the tree, this is the section of
wood between the notch and backcut. Never
position yourself directly behind the trunk of a
falling tree. There is a risk that the trunk may split
and come back towards the operator.
• Backcut (the final cut in a tree blocking operation
made on the opposite side of the tree from the
notching undercut). The backcut is always made
level and horizontal, and at a minimum of 2" above
the horizontal cut of the notch.
10
Direction of fall
Hinge
2" or
1/10
dia.
Notch -
Approx. 1/3
Diameter of
Trunk
Notch
