Felling A Tree; Notching Undercut; Felling Back Cut - Clarke CECS405C Operation & Maintenance Instructions Manual

FELLING A TREE

Trees should not be felled in a manner that would endanger any person, strike
any electrical utility line or cause any property damage. If the tree does make
contact with any utility line, the utility company should be notified
immediately.
The chainsaw operator should keep on the uphill side of the terrain as the tree
is likely to roll or slide downhill after it is felled.

NOTCHING UNDERCUT

Make the notch 1/3 the diameter of
the tree, perpendicular to the
direction of fall as illustrated.
Make the lower horizontal notching
cut first. This will help to avoid
pinching either the saw chain or the
guide bar when the second notch is
being made.

FELLING BACK CUT

Make the felling back cut at least 50
mm higher than the horizontal
notching cut as illustrated.
Keep the felling back cut parallel to the horizontal notching cut. Make the
felling back cut so enough wood is left to act as a hinge. The hinge wood
keeps the tree from twisting and falling in the wrong direction. Do not cut
through the hinge.
As the felling gets close to the hinge, the tree should begin to fall. If there is any
chance that the tree may not fall in desired direction or it may rock back and
bind the saw chain, stop cutting before the felling back cut is complete and
use wedges of wood, plastic or aluminium to open the cut and drop the tree
along the desired line of fall.
When the tree begins to fall, remove the chainsaw from the cut, stop the
motor, put the chainsaw down, then use the retreat path planned. Be alert for
overhead limbs falling and watch your footing.
18
Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com