Homelite UT43104 Manual Del Operador página 20

things influence the direction in which the tree
will fall. Do not try to fell a tree along a line
different from its natural line of fall.
 The chain saw operator should keep on the
uphill side of the terrain as the tree is likely to
roll or slide downhill after it is felled.
 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 tree, perpendicular to the
direction of fall. Make the cuts of the notch 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. See Figure 14.
 Felling Backcut. The backcut is always made
level and horizontal, and at a minimum of 2
in. above the horizontal cut of the notch. See
Figures 14 - 15.
 Never cut through to the notch. Always leave a
band of wood between the notch and backcut
(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 shoot-back of the tree off the
stump. See Figures 14 - 15.
 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. The wedges can
be driven in, little by little, to help jack the tree
over. See Figure 16.
 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. Be alert for overhead limbs or
branches that may fall and watch your footing.
OPERATION
BACK CUT
BACK CUT
WEDGE
WARNING:
Never cut through to the notch when making a
backcut. The hinge controls the fall of the tree,
this is the section of wood between the notch
and backcut.
Page 20 — English
HINGE
2 in. OR 1/10 DIA
2 in.
NOTCH -
APPROX. 1/3
DIAMETER
OF TRUNK
Fig. 14
HINGE
Fig. 15
Fig. 16