Hart HLCS01 Manual Del Operador página 17

OPERATION
FIG. 14
HINGE
2 in. OR 1/10 DIA
BACK CUT
2 in.
FIG. 15
BACK CUT
HINGE
FIG. 16
WEDGE
 Check the tree for damaged or dead branches
that could fall and hit you during felling.
 Periodically glance at the top of the tree during
the backcut to assure the tree is going to fall in
the desired direction.
 If the tree starts to fall in the wrong direction,
or if the saw gets caught or hung up during the
fall, leave the saw and save yourself!
 Felling a tree — When bucking and felling op-
erations are being performed by two or more
persons, at the same time, the felling operation
should be separated from the bucking operation
NOTCH -
APPROX. 1/3
 Before any cuts are started, pick your escape
DIAMETER OF
TRUNK
NOTCH
 Before felling is started, consider the force and
 The chain saw operator should keep on the
 Remove dirt, stones, loose bark, nails, staples,
 Notched Undercut. Cut a notch about 1/3
 Felling Backcut. The backcut is always made
 Never cut through to the notch. Always leave a
17 – English
by a distance of at least twice the height of the
tree being felled. Trees should not be felled in a
manner that would endanger any person, strike
any utility line or cause any property damage. If
the tree does make contact with any utility line, the
utility company should be notified immediately.
route (or routes in case the intended route is
blocked); clear the immediate area around the
tree and make sure there are no obstructions
in your planned path of retreat. Clear paths of
safe retreat should extend back and diagonally
(45°) to the rear of the planned line of fall. When
the tree begins to fall, you should retreat away
from the direction of fall along a retreat path and
at least 20 feet away from the trunk in case it
kicks back over the stump. See Figure 13.
direction of the wind, the lean and balance of
the tree, and the location of large limbs. These
things influence the direction in which the tree
will fall. Do not try to fell a tree along a line dif-
ferent from its natural line of fall.
uphill side of the terrain as the tree is likely to
roll or slide downhill after it is felled.
and wire from the tree where felling cuts are to
be made.
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.
level and horizontal, and at a minimum of 2
in. above the horizontal cut of the notch. See
Figures 14 - 15.
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 slip-
ping or twisting or shoot-back of the tree off
the stump. See Figures 14 - 15.