8.
On large diameter trees, it is proper to stop the back cut
before it is deep enough for the tree
toeither fall or set-
tle back on the stump. Then soft wooden or plastic
wedges (not hard metal) are inserted behind the saw so
they do not touch the chain. The wedges can
bedriven
in, little by little, to help jack the tree over.
WHEN WEDGE IS
-
NEEDED TO HOLD
CUT OPEN, REMOVE
SAFE*T.TlP@
9.
Trees larger than the saw can cut in one cut, can be
both notched and back-cut in a series of cuts, as illus-
trated. Start the notching cuts from one side and draw
the saw through to the other
sideof the notch. Start the
back cut on one side of the tree, pivoting the saw
through to form the desired hinge on that side.
Then remove and reverse the saw for the second cut.
Insert the saw in the first cut, very carefully soasnotto
cause kickback, and cut back toward and around the
back of the trunk. Complete the back cut by cutting to-
wards the notch to complete the hinge section.
NOTE
Insert your felling wedges in the back cut. Remove the
saw before tree is ready to fall and drive the wedges in to
fell the tree.
NORMAL SEQUENCE USED
TO
FELL VERY
LARGE TREES
(UP
TO TWICE BAR LENGTH
IN DIAMETER)
1st CUT-USE
PIVOT ACTION
2nd
CUT-REINSERT
SAW AND
DRAW IT
AROUND THE BACK
FELLING
CUT-INSERT
#FELLING
WEDGE
BEHIND
BLADE.
CONTINUE TO
CUT FORWARD
TOWARD
NOTCH
DRIVE WEDGE
INTO BACK
CUT TO HELP
FORCE TREE
OVER. REMOVE
SAW
FELLING LEANERS
This variation is designed to prevent splitting and "barber
chair" of leaners.
All standard felling techniques apply to leaning trees ex-
cept as follows:
1.
Make the directional control face notch shallower than
usual.
2.
Make shallow notches on both sides of the tree to cut
through the outer layer (sapwood).
3.
Now make your back cut to leave a parallel hinge.
WHEN CUTTING LEANERS, AVOID
SPLITTING AND BARBER CHAIR BY
MAKING THE FACE NOTCH (1) AS
DEEP AS IS SAFE. THEN MAKE
SlDE
NOTCHES
(2
AND
3)
TO CUT
THROUGH THE SAPWOOD BEFORE
STARTING THE
BACKCUT
(4).
CHANGING THE
DIRECTION OF FALL
(from
the
natural line of fall)
1.
Where you would leave a parallel hinge (hingewood of
equal thickness on both sides) the hinge is left thicker
on the side toward which you want the tree to swing
(away from the natural line of fall).
2.
Place your wedges in the back cut between the back-
center and the narrow side of the hinge. Drive in the
wedges to force the tree over in the direction desired.
SlDE NOTCH
FELLING
WEDGES
BACKCU
THIN END OF
HINGE
NATURAL
LINE OF
FALL INDICATED
+
---A
BY LEAN AND
BALANCE
THICK
END/.
FACE
NOTCH
\J1
OF HINGE
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