By doing so, it is easier for the cut branches
to fall to the ground.
• At the end of the cut, the weight of the saw
suddenly increases for the user since it is no
longer being supported by a branch. There
is a risk of losing control of the saw, so make
sure to stay alert during the entire sawing
operation.
• Only pull the saw out of a cut while the saw is
running. By doing so, you prevent the chain
from jamming in the wood.
• Do not saw with the tip of the guide bar. Do
not saw into the branch formations (where the
tree branches outwards). This will impede the
tree's ability to heal.
• For sawing off smaller branches, place the
stop face of the saw on the branch. This
prevents unwanted movements of the saw at
the beginning of the cut. While applying light
pressure, guide the saw through the branch
from top to bottom.
a relief cut. Saw through 1/3 of the branch
diameter from the bottom to top using the top
side of the guide bar. Then saw from top to
bottom for the other 2/3 using the bottom side
of the guide bar.
• Saw off longer branches in sections in order
to maintain control over the location of impact.
When bucking and felling operations are being
performed by two or more persons at the same
time, the felling operations should be separated
from the bucking operation by a distance of at
least twice the height of the tree being felled.
Trees should not be felled 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
The chain saw operator should keep on the
uphill side of the terrain as the tree is likely to
roll or slide downhill after it is felled.
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An escape path should be planned and
cleared as necessary before cuts are started.
The escape path should extend back and
diagonally to the rear of the expected line of fall
(Figure 1).
Felling direction
Danger zone
Escape
route
Danger zone
Figure 1 - Escape routes
Before felling is started, consider the natural
lean of the tree, the location of larger branches
and the wind direction to judge which way the
tree will fall. Remove dirt, stones, loose bark,
nails, staples and wire from the tree.
Make the notch 1/3 the diameter of the tree,
perpendicular to the direction of falls (Figure 2).
Direction of fall
50 mm
Notch
Figure 2 - Notching undercut
This will help to avoid pinching either the saw
chain or the guide bar when the second notch
is being made.
Escape
route
Felling back cut
50 mm
Hinge
9