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OPERATION
WARNING: If saw becomes pinched or hung in a log,
don’t try to force it out.You can lose control of the saw
resulting in injury and/or damage to the saw. Stop the
saw, drive a wedge of plastic or wood into the cut until
the saw can be removed easily. Restart the saw and
carefully reenter the cut. Do not attempt to restart your
saw when it is pinched or hung in a log.
WARNING: Do not stand on the log being cut. Any
portion can roll causing loss of footing and control.
Do not cut in an area where logs, limbs, and roots are
tangled. Drag the logs into a clear area before cutting
by pulling out exposed and cleared logs first.
Bucking with a Wedge
If the wood diameter is large enough for you to insert a soft
bucking wedge without touching the chain, you should use the
wedge to hold the cut open to prevent pinching.
Logs Under Stress (Fig. 62-63)
Make the first bucking cut (F) 1/3 of the way through the log and fini-
sh with a 2/3 cut (G) on the opposite side. As the log is being cut, it
will tend to bend. The saw can become pinched or hung in the log
if you make the first cut deeper than 1/3 of the diameter of the log.
Give special attention to logs under stress to prevent the bar and
chain from pinching.
Types of Cutting Used
Overbucking (Fig. 64)
Begin on the top side of the log with the bottom of the saw against
the log; exert light pressure downward.
Underbucking (Fig. 65)
Begin on the under side of the log with the top of the saw against
the log; exert light pressure upward. During underbucking, the
saw will tend to push back at you. Be prepared for this reaction
and hold the saw firmly to maintain control.
WARNING: Never turn saw upside down to undercut.
The saw cannot be controlled in this position. Always
make your first cut on the compression side of the
log. The compression side of the log is where the
pressure of the log’s weight is concentrated.
Limbing and Pruning
WARNING: Be alert for and guard against kickback.
Do not allow the moving chain to contact any other
branches or objects at the nose of the guide bar
when limbing or pruning. Allowing such contact can
result in serious injury.
• Work slowly, keeping both hands on the saw with a firm and
proper grip. Maintain secure footing and balance (Fig. 66).
• Keep the tree between you and the chain while limbing (A, Fig.
67). Cut from the side of the tree opposite the branch you are
cutting.
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