Ryobi CS-2000 Owner's Operating Manual page 16

GENERAL GUIDELINES FOR FELLING TREES
Normally felling consists of 2 main cutting opera-
tions, notching (Fig.16-C) and making the felling
cut (Fig.16-D).
Start making the upper notch cut (Fig.16-C) on the
side of the tree facing the felling direction
(Fig.16-E).
Be sure you don t make the lower cut too deep in-
tothe trunk.
The notch (Fig.16-C) should be deep enough to
create a hinge (Fig.16-F) of sufficient width and
strength. The notch should be wide enough to
direct the fall of the tree for as long as possible.
Use wooden or plastic wedges (Fig .17-A) to
prevent pinching the bar and chain (Fig.17-B) in the
cut. Wedges also control felling.
When diameter of wood being cut is greater than
the bar length, make 2 cuts as shown (Fig.18).
WARNING. Before making the final cut,
always recheck the area for bystanders,
animals or obstacles.
WARNING: Never saw completely
through the trunk. Always leave a hinge
(Fig.16-F). The hinge guides the tree. If
the trunk is completely cut through,
control over the felling direction is lost.
Insert a wedge or felling lever in the cut
well before the tree becomes unstable
and starts to move. This will prevent the
bar from binding in the felling cut if you
have misjudged the falling direction.
Make sure no bystanders have entered
the range of the falling tree before you
push it over.
WARNING: As the felling cut gets close
to the hinge, the tree should begin to fall.
When tree begins to fall, remove saw
from cut, stop engine, put chain saw
down, and leave area along retreat path.
OPERATION
15
Fig. 16
Fig. 17
Fig. 18