19
Operating the Chainsaw
Chainsaw Model CS1200-091
BUCKING A LOG
CAUTION: Bucking logs under tension
increases the chance of kickback. Use one
of the methods below to support the log
when bucking.
Bucking is cutting a log into lengths. It is
important to make sure footing is firm and
weight is evenly distributed on both feet.
When possible, the log should be raised and
supported by the use of limbs, logs or chocks.
• When the log is supported along its entire
length, cut from the top (overbuck) (Fig. ).
• When the log is supported on one end, cut
/ the diameter from the underside
(underbuck), then make the finished cut by
overbucking to meet the first cut (Fig. ).
• When the log is supported on both ends, cut
/ of that diameter from the top overbuck,
then make the finished cut by underbucking
the lower / to meet the first cut (Fig. ).
• When bucking on a slope, always stand on the
uphill side of the log (Fig. ).
• To maintain complete control when cutting
through, release the cutting pressure near the
end of the cut without relaxing the grip on the
chainsaw handles.
• Don’t let the chain contact the ground.
• After completing the cut, wait for the saw
chain to stop before you move the chainsaw.
• Always stop the motor before moving from
tree to tree.
LOG IS SUPPORTED
ALONG ITS ENTIRE LENGTH
CUT FROM TOP (OVERBUCK)
AVOID CUTTING EARTH
FIG. 14
LOG IS SUPPORTED ONE END
1ST CUT UNDERBUCK (1/3 DIAMETER)
TO AVOID SPLINTERING
2ND CUT OVERBUCK (2/3 DIAMETER)
TO MEET 1ST CUT (TO AVOID PINCHING)
FIG. 15
BUCKING A LOG
1ST CUT OVERBUCK (1/3 DIAMETER)
TO AVOID SPLINTERING
2ND CUT UNDERBUCK (2/3 DIAMETER) TO
MEET 1ST CUT (TO AVOID PINCHING)
FIG. 16
BUCKING ON A SLOPE
STAND ON UPHILL SIDE
WHEN CUTTING BECAUSE
LOG MAY ROLL
FIG. 17
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