Homelite UT43100 Manual Del Operador página 17

fell a tree along a line different from its natural
line of fall.
 Remove dirt, stones, loose bark, nails, staples,
and wire from the tree where felling cuts are to
be made.
 Notched Undercut. Cut a notch about 1/3 the
diameter of the trunk in the side of the tree.
Make the notch cuts so they intersect at a right
angle to the line of fall. This notch should be
cleaned out to leave a straight line. To keep the
weight of the wood off the saw, always make the
lower cut of the notch before the upper cut.
 Felling Backcut. As the felling cut gets close
to the hinge the tree should begin to fall. If
there is any chance the tree may not fall in the
desired direction or it may rock back and bind
the saw chain, stop cutting before the felling cut
is complete and use wedges of wood, plastic
or aluminum to open the cut and drop the tree
along its desired line of fall. Make the backcut
level and horizontal, and at a minimum of 2 in.
above the horizontal cut of the notch.
NOTE: Never cut through to the notch. Always
leave a band of wood between the notch
and back cut (approximately 2 in. or 1/10 the
diameter of the tree). This is called "hinge" or
"hingewood." It controls the fall of the tree and
prevents slipping or twisting or shootback of
the tree off the stump.
 On large diameter trees, stop the back cut
before it is deep enough for the tree to either
fall or settle back on the stump. Then insert soft
wooden or plastic wedges into the cut so they
do not touch the chain. Drive wedges in, little
by little, to help jack the tree over.
 When bucking or felling with a wedge, it may
be necessary to remove the SAFE-T-TIP anti-
kickback device to allow the bar to be drawn
through the cut. After you complete the cut,
reinstall the tip immediately.
 As tree starts to fall, stop the chain saw and put
it down immediately. Retreat along the cleared
path, but watch the action in case something
falls your way.
OPERATION
Planned line
oF Fall
135° FroM
Planned
line oF Fall
Planned
line oF
Fall
back cUt
Page 17 — English
135°
45°
45°
135°
Hinge
2 in. or 1/10 dia
2 in.
90°
PatH oF
SaFe retreat
PatH
oF SaFe
retreat
90°
Fig. 13
notcH -
aPProX. 1/3
diaMeter
oF trUnk
Fig. 14