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IMPORTANT: It is recommended that
first-time user should, as a
minimum practice, cutting logs
on a saw-horse or cradle.
• Saw off the lower branches on the tree
first. 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 chain 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.
• For sawing off larger branches, first make
a relief cut. Saw through 1/3 of the branch
diameter from the bottom to top using the
top side of the chain bar. Then saw from
top to bottom for the other 2/3 using the
bottom side of the chain bar. Saw off longer
branches in sections in order to maintain
control over the location of impact.
FELLING A TREE
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
company should be notified immediately.
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.
necessary before cuts are started.
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SAWING TECHNIQUES
The escape path should extend back and
diagonally to the rear of the expected line of
fall (Figure 7).
Description of felling: escape routes
Felling direction
Danger zone
Escape
route
Danger zone
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 8).
Description of felling: undercutting
Direction of fall
Notch
Make the lower horizontal notching cut first.
This will help to avoid pinching either the saw
chain or the chain bar when the second notch
is being made.
Escape
route
Fig. 7
Felling back cut
50 mm
50 mm
Hinge
Fig. 8
15
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