33
FPCS1800A
In
more
detail...
EN
Operation
> 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.
Felling back cut
> Make the felling back cut (Fig. 29, A) at least 50 mm higher than
the horizontal notching cut (Fig. 29). 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 (Fig. 29,
C) 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 product from the cut,
stop the motor, put the product down, then use the retreat path
planned. Be alert for overhead limbs falling and watch your
footing.
Notching undercut
Make the notch (Fig. 29, B)
1/3 the diameter of the tree,
perpendicular to the direction of
falls (Fig. 29). Make the lower
horizontal notching cut first. This
will help to avoid pinching either
the saw chain or the guide bar
when the second notch is being
made.
Fig. 29
