Ryobi RY40500 - Manual (Page 20)

20 - English
When felling a tree, it is important that you follow
these warnings and instructions to prevent pos-
sible serious injury.
■
Do not cut down trees having an extreme lean or
large trees with rotten limbs, loose bark, or hol-
low trunks. Have these trees pushed or dragged
down with heavy equipment, then cut them up.
■ Do not cut trees near electrical wires or buildings.
■ 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 opera-
tions are being performed by two or more per-
sons, at the same time, the felling operation
should be separated from the bucking operation
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.
 Before any cuts are started, pick your escape
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 path of
safe retreat approximately 135° from planned
line of fall. The retreat path should extend back
and diagonally to the rear of the expected line
of fall. See Figure 14.
 Before felling is started, consider the force and
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.
 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.
OPERATION
Fig. 17
WEDGE
KICKBACK
Fig. 18
NOTCH
BACK CUT
Fig. 16
HINGE
HINGE
2 in. OR 1/10 DIA
NOTCH -
APPROX. 1/3
DIAMETER OF
TRUNK
BACK CUT
2 in. Fig. 15