Sawing; Felling A Tree - Hitachi CS40EM Manual Del Propietário

7. Sawing

WARNING
•
•
• When completing a cut, be ready to hold up
the unit as it breaks into clear, so it will not
follow through and cut your legs, feet or body,
or contact an obstruction.
• Always keep the spiked bumper face to a tree,
because the chain may suddenly be drawn
into a tree.
• It is not necessary to force the saw into the
cut. Apply only light pressure while running the
engine at full throttle.
• When the saw chain is caught in the cut, do
not attempt to pull it out by force, but use a
wedge or a lever to open the way.
■ GUARD AGAINST KICKBACK
• This saw is equipped with a chain
brake that will stop the chain in the
event of kickback if operating prop-
erly. You must check the chain brake
operation before each usage by run-
ning the saw at full the throttle for I -
GB-12
Before proceeding to your job,
read the section "For Safe Op-
eration". It is recommended to
first practice sawing easy logs.
This also helps you get accus-
tomed to your unit.
Always follow the safety regu-
lations. The chain saw must
only be used for cutting wood.
It is forbidden to cut other
types of material. Vibrations
and kickback vary with differ-
ent materials and the require-
ments of the safety regulations
would not be respected. Do not
use the chain saw as a lever for
lifting, moving or splitting ob-
jects. Do not lock it over fixed
stands. It is forbidden to hitch
tools or applications to the
PTO other than those specified
by the manufacturer.
2 seconds and pushing the front
hand guard forward. The chain
should stop immediately with the en-
gine at full speed. If the chain is slow
to stop or does not stop, replace the
brake band and clutch drum before
use.
• It is extremely important that the
chain brake be checked for proper
operation before each use and that
the chain be sharp in order to main-
tain the kickback safety level of this
saw. Removal of the safety devices,
inadequate maintenance, or incor-
rect replacement of the bar or chain
may increase the risk to serious per-
sonal injury due to kickback.

■ FELLING A TREE

Felling direction
Notch cut
1. Decide the felling direction considering the wind,
lean of the tree, location of heavy branches, ease of
completing the task after felling and other factors.
2. While clearing the area around the tree, arrange a
good foothold and retreat path.
3. Make a notch cut one-third of the way into the tree
on the felling side.
4. Make a felling cut from the opposite side of the notch
and at a level slightly higher than the bottom of the
notch.
WARNING
• When you fell a tree, be sure to warn neighboring
workers of the danger.
Bucking and Limbing
WARNING
• Always ensure your foothold. Do not stand on the
log.
• Be alert to the rolling over of a cut log. Especially
when working on a slope, stand on the uphill side
of the log.
• Follow the instructions in "For Safe Operation" to
avoid kickback of the saw.
Before starting work, check the direction of bending
force inside the log to be cut. Always finish cutting from
the opposite side of the bending direction to prevent
the guide bar from being caught in the cut.
Felling cut