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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.
2. 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.
3. Before felling is started, consider the natural lean of the tree, the location of larger
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Remove dirt, stones, loose bark, nails staples, and wire from the tree.
Notching undercut: Make the notch (x-w)1/3 the diameter of the tree, perpendicular to the
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either the saw chain or the guide bar when the second notch is being made.
Felling back cut: Make the felling back cut (Y) at least 2” (5 cm) higher than the horizontal
notching cut. 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 aluminum 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 cutting, stop the motor, put the
chainsaw down, and then use the retreat path planned. Be alert for overhead limbs falling and
watch your footing.
To complete the felling operation, drive a wedge (Z) into the horizontal cut.
Beware of falling branches when the tree starts to move.
10. LIMBING A TREE (See Fig. P)
Limbing is removing the branches from a fallen tree. When limbing, leave larger lower limbs
to support the log off the ground. Remove the small limbs in one cut as illustrated. Branches
under tension should be cut from the bottom up to avoid binding the chainsaw.
Assembly
3
2
2
W
Y
Z
X
1
1
1
2˝ (5 cm)
2
˝ (5 cm) 2˝ (5 cm)
O
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