of falls as illustrated in Figure 1. Make the lower horizontal notching cut (W)
rst. This will help to avoid pinching either the saw chain or the guide bar
when the second notch (X) is being made.
3. Felling back cut
Make the felling back cut (Y) at least 50 mm higher than the horizontal
notching cut as illustrated in Figure 1. 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 (Z) to open the cut and drop
the tree along the desired line of fall (
3
).
When the tree begins to fall remove the chain saw from the cut, stop the
motor, put the chain saw down, then use the retreat path planned (
2
). Be
alert for overhead limbs falling and watch your footing.
2 2
3
W
Y
Z
X
50 mm
50 mm
1
1
1
Fig.1
4. Limbing a tree
Limbing is removing the branches from a fallen tree. When limbing leave
larger lower limbs to support the log o the ground. Remove the small
limbs in one cut as illustrated in Figure 2. Branches under tension should be
11
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