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19
OPERATION
GENERAL GUIDELINES FOR FELLING
TREES:
Normally felling consists of 2 main cutting opera-
tions, notching (C) and making the felling
cut ( D).
Start making the upper notch cut (C) on the side of
the tree facing the felling direction (E). Be sure you
don t make the lower cut too deep into the trunk.
The notch (C) should be deep enough to create a
hinge (F) of sufficient width and strength. The notch
should be wide enough to direct the fall of the tree
for as long as possible.
Use wooden or plastic wedges (A) to prevent
pinching the bar and chain (B) in the cut. Wedges
also control felling (E).
When diameter of wood being cut is greater than the bar length,
make 2 cuts as shown.
WARNING!
: Before making the final cut, always recheck the area for bystanders,
animals or obstacles.
WARNING!
: Never saw completely through the trunk. Always leave a hinge. The hinge
guides the tree. If the trunk is completely cut through, control over the felling direction
is lost. Insert a wedge or felling lever in the cut well before the tree becomes unstable
and starts to move. This will prevent the bar from binding in the felling cut if you have
misjudged the falling direction. Make sure no bystanders have entered the range of
the falling tree before you push it over.
WARNING!
: As the felling cut gets close to the hinge, the tree should begin to fall.
When tree begins to fall, remove saw from cut, stop engine, put chainsaw down, and
leave area along the retreat path.
E