Operating Manual

5
Chain Saw WG303E
diagonally to the rear of the expected line of fall as
illustrated in Figure 1.
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.
2. Notching undercut
Make the notch 1/3 the diameter of the tree,
perpendicular to the direction of falls as illustrated in
Figure 1. Make the lower horizontal notching cut first.
This will help to avoid pinching either the saw chin or
the guide bar when the second notch is being made.
3. Felling back cut
Make the felling back cut 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 to open the cut and drop the tree along the
desired line of fall.
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. Be alert for
overhead limbs falling and watch your footing.
4. Limbing a tree
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 in Figure 2. Branches under tension
should be cut from the bottom up to avoid binding the
chain saw.
2 2
W
Y
Z
X
50 mm
50 mm
1
1
1
Fig.1
Fig.2