Sawing - Zenoah G4500 Owner's Manual

G4500

6. Sawing

WARNING
• Before proceeding to your
job, read the section "For
Safe Operation". It is recom­
mended to first practice
sawing easy logs. This also
helps you get accustomed
to your unit.
• Always follow the safety
regulations. The chain saw
must only be used for cut­
ting wood. It is forbidden to
cut other types of material.
Vibrations and kickback vary
with different materials and
the requirements of the safe­
ty regulations would not be
respected. Do not use the
chain saw as a lever for lift­
ing, 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 manufac­
turer.
• It is not necessary to force the saw into the
cut. Apply only light pressure while running
the engine at full throttle.
• When `e 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.
• If the guide bar and saw chain becomes
caught in wood while operating it, stop the
engine.
Do not pry the handle with excessive force.
Use a wedge to remove the chain instead.
■ 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 -2
GB-10
seconds and pushing the front hand
guard forward. The chain should stop
immediately with the engine 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 opera-
tion before each use and that the
chain be sharp in order to maintain
the kickback safety level of this saw.
Removal of the safety devices, inad-
equate maintenance, or incorrect re-
placement of the bar or chain may
increase the risk to serious personal
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 fac-
tors.
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