Jonsered 2033T Operator's Manual page 23

C Felling tree tops
!
Beware of the trunk swaying when the top of
the tree falls away from it.
Felling is done using three cuts. First you make the
DIRECTIONAL CUTS, which consist of the TOP CUT and the
BOTTOM CUT; followed by the FELLING CUT. By placing
these cuts correctly you can control the felling direction very
accurately.
DIRECTIONAL CUT
To make the DIRECTIONAL
CUT you begin with the TOP
CUT. Stand to the right of the
tree and cut downwards at an
angle.
Next make the BOTTOM CUT
so that it finishes at the end of
the TOP CUT.
The directional cut should run
1/4 of the diameter through
the trunk and the angle
between the TOP CUT and
BOTTOM CUT should be 45°.
The line where the two cuts
meet is called the
DIRECTIONAL CUT LINE.
This line should be perfectly
horizontal and at right angles
(90°) to the chosen felling
direction.
SAFETY INSTRUCTIONS
THE FELLING CUT
The felling cut is made from the opposite side of the trunk, and
it must be perfectly horizontal. Stand at the left side of the tree
and cut with the bottom edge of the bar.
Make the FELLING CUT
about 3-5 cm (1.5-2 inches)
above the level of the flat part
of the DIRECTIONAL CUT.
Use full throttle and bring the
bar and chain slowly into the
tree. Watch out for the upper
part of the tree moving in the
opposite direction to your
intended felling direction.
Drive a WEDGE or BREA-
KING BAR into the FELLING
CUT as soon as it is deep
enough.
Finish the FELLING CUT
parallel with the
DIRECTIONAL CUT LINE so
that the distance between
them is at least 1/10 of the
trunk diameter.
The uncut section of the trunk
is called the BREAKING
STRIP.
The BREAKING STRIP acts
as a hinge that controls the
direction of the falling tree.
All control over the felling
direction is lost if the BREA-
KING STRIP is too narrow or
sawn through, or if the
directional and felling cuts are
wrongly placed.
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.
23
English –