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► To reduce the risk of severe or fatal injury
to yourself or others, look for, analyze and
plan for these conditions prior to beginning
the cut, and be alert for a change in direc‐
tion while the tree is falling.
■ Felling a tree that has a diameter greater than
twice the effective cutting length of the guide
bar requires use of either the sectioning felling
back cut or plunge-cut method. Neither of
these cutting techniques is recommended for
this model chain saw. These methods can be
extremely dangerous because they involve the
use of the nose of the guide bar and can result
in kickback. Only properly trained professio‐
nals should attempt these techniques. If you
are inexperienced with a chain saw, plunge-
cutting should not be attempted. Seek the help
of a qualified professional.
■ Never attempt to cut a large diameter tree with
a chain saw that lacks sufficient size, power or
run-time to complete the task efficiently.
■ Trees that are split, decayed or rotted inside or
that are leaning or otherwise under tension are
more likely to snap or split while being cut,
causing serious or fatal injury to the operator
or bystanders.
► Always observe and be aware of the gen‐
eral condition of the tree.
► Inexperienced users should never attempt
to cut such trees.
► Also look for broken or dead branches
which could vibrate loose and fall on the
operator during the felling operation. Cer‐
tain types of trees are more susceptible to
this condition, such as Douglas firs. You
should check with a reputable tree service if
you have questions about the stability of the
trees you will be cutting.
► When felling on a slope, the operator
should stand on the uphill side if possible.
When felling:
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► Maintain a distance of at least 2 1/2 tree
lengths from the nearest person or structure.
► Take extra precautions in the vicinity of roads,
railways and power lines. Inform the police,
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7 Proper Techniques for Basic Bucking, Limbing, Pruning and Felling
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utility company or railway authority before
beginning to cut.
7.6.2
Escape Path
Before making your first cut, prepare an escape
path:
► First clear limbs and brush from the area
around the base of the tree. Remove vegeta‐
tion from the lower portion of the tree with an
axe.
► Next, establish at least two clear paths of
escape (B) and remove any obstacles such as
brush, small trees and other vegetation. These
paths should lead away from the planned
direction of the tree's fall (A) at a 45° angle
from the expected fall line. Place all tools and
equipment a safe distance away from the tree,
but not on the escape paths.
7.6.3
Conventional Notch
For a conventional notch:
C
► The felling notch determines the direction of
the tree's fall. Make the felling notch perpen‐
dicular to the line of fall you have determined,
close to the ground.
► Be aware of conditions such as wind, limb and
foliage structure, tree lean, the slope of the
terrain and other factors that could alter the
direction of fall.
► Cut down at a 45° angle to a depth of approxi‐
mately 1/5 to 1/4 of the trunk diameter.
► Make a horizontal cut that meets the bottom of
the first cut.
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0458-022-8201-A
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