|
-29-
information
The felling cut is made from the opposite side of the
tree and it must be perfectly horizontal. Stand on the left
side of the tree and cut with the bottom edge of the bar.
3. After removing the wood from the notch, make the
felling cut on the opposite side of the notch. Make
the FELLING CUT about 5 cm (A=2 inches) above
the flat section of the DIRECTIONAL CUT. This will
leave enough uncut wood between the felling cut
and the notch to form a hinge. This hinge will hold
tree on stump and control the tree falling in the
correct direction.
4. Set the spike bumper (if one is fitted) in behind the
breaking strip. Use full throttle and bring the bar
and chain slowly into the tree. Make sure the tree
does not start to move in the opposite direction to
your intended felling direction.
5. Drive a WEDGE or BREAKING BAR into the cut as
soon as it is deep enough.
6. Finish the FELLING CUT parallel with the
DIRECTIONAL CUT LINE so that the distance
between them is at least at least 1/10 (C) of the
trunk diameter. The uncut section of the trunk is
called the BREAKING STRIP.
c
information
The BREAKING STRIP act as hinges that control the
felling direction of the falling tree.
7. When the felling cut and directional cut are
complete the tree should start to fall under its own
weight or with the aid of a FELLING WEDGE or
BREAKING BAR.
WARNING
All control over the felling direction is lost if the
BREAKING STRIP is too narrow or if the directional cut
and felling cut are badly placed.
information
We recommend that you use a bar that is longer than
the diameter of the tree, so that you can make the
FELLING CUT and DIRECTIONAL CUT with single
cutting stokes.
WARNING
Unless you have special training, we advise you not to
fell tress with a diameter larger than the bar length of
your chain saw.
WARNING
Before felling cut is complete, use wedges to open the
cut when necessary to control the direction of fall.
Avoid kickback and chain damage, only use wood or
plastic wedges, never use steel or iron wedges.
•
Be alert to signs that the tree is ready to fall: cracking
sounds, widening of the felling cut, or movement in
the upper branches.
•
As tree starts to fall, stop saw, put it down, and get
away quickly on your planned retreat path.
Summary of Contents for NT3760
Page 5: ... 3 Product overview General overview ...
Page 53: ...WWW CRAFTOP COM ...
