Felling Instructions; Escape Path; Buttress Roots - Stihl 9 Instruction Manual

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When felling, maintain a distance of at
least 2 1 / tree lengths from the nearest
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person.
When felling in the vicinity of roads,
railways and power lines, etc., take extra
precautions. Inform the police, utility
company or railway authority before
beginning to cut.
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The noise of your engine may drown any
warning call.
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There are a number of factors that may
affect and change the intended direction
of fall, e.g. wind, lean of tree, sloping
ground, one-sided limb structure, wood
structure, decay, snow load, etc. To re-
duce the risk of severe or fatal injury to
yourself or others, look for these condi-
tions prior to beginning the cut, and be
alert for a change in direction during fall.

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First clear the tree base and work area
from interfering limbs and brush and
clean its lower portion with an ax.
Then, establish two paths of escape (%)
and remove all obstacles. These paths
should be generally opposite to the plan-
ned direction of the fall of the tree ($)
and about at a 45° angle. Place all
tools and equipment a safe distance away
from the tree, but not on the escape paths.
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If the tree has large buttress roots, cut
into the largest buttress vertically first
(horizontally next) and remove the
resulting piece.