The next step is to make the so-called splint cut at either
side of the log. These cuts are designed to prevent tearing
of the splint wood when the log falls and are recommended
for softwoods felled during the summer. Make the splint
notches not deeper than one guide bar width and locate
them at the same level
as
the intended felling cut.
The felling notch
is
the first step that determines the direc-
tion
in
which the tree will fall.
It
is
made at a right angle to
the felling direction and should be as close to the ground
as possible. Cut the felling notch to a depth of about one
fourth of the trunk diameter.
'It
should
be
in
no
case higher
than
it
is deep. Make the felling notch very carefully.
I
I
r
l
.\
l
1i=:===:::;li~
- Felling cut
t
l
J~
~
I
I
q
Hinge
---Jlt.-
rl
--+
~
Felling notch
_~
......
Hinge
Felling notch
Begin the felling cut higher than the felling notch and
proceed horizontally under all circumstances. For felling
small trees, apply the chain saw with its spikes directly
behind the uncut thickness of wood serving as a hinge and
cut with a swing motion, so that the spikes contact the log
one after the other. The uncut hingewood should
be
about
one-tenth of the log diameter. Look for saw dust dis-
coloration or easy cutting which indicate internal rot.
Do
not cut through the uncut hingewood because you
could lose control of the direction of the fall. Drive wedges
into the felling cut where necessary
to
control the direction
of the fall.
Warn
09
1
The following cutting methods are hazardous
and should only
be
attempted
by
experienced cutters.
When felling old timber with a diameter larger than the
cutting length of the guide
bar,
reposition the saw using the
sectioning method. Make the first cut with the guide bar
fanning
in
towards the hinge wood. Use the spikes to act
as a pivot and avoid repositioning the saw more often than
absolutely necessary. When repositioning for the next
cut, keep the guide bar fully engaged
in
the kerf to prevent
the line of the felling cut from wandering
off.
For the last cut, 17
To Next Page
Loading...
Need help?
General
