Oregon CS1200-091 Manuel D'instructions Original page 19

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 14)
FIG. 14
LOG IS SUPPORTED
ALONG ITS ENTIRE LENGTH
CUT FROM TOP (OVERBUCK)
AVOID CUTTING EARTH
• When the log is supported on one end, cut
1/3 the diameter from the underside
(underbuck), then make the finished cut by
overbucking to meet the first cut (Fig 15)
FIG. 15
LOG IS SUPPORTED ONE END
2ND CUT OVERBUCK (2/3 DIAMETER)
TO MEET 1ST CUT (TO AVOID PINCHING)
1ST CUT UNDERBUCK (1/3 DIAMETER)
TO AVOID SPLINTERING
Chainsaw Model CS1200-091
Operating the Chainsaw
• When the log is supported on both ends, cut
1/3 of that diameter from the top overbuck,
then make the finished cut by underbucking
the lower 2/3 to meet the first cut (Fig 16)
FIG. 16
1ST CUT OVERBUCK (1/3 DIAMETER)
TO AVOID SPLINTERING
2ND CUT UNDERBUCK (2/3 DIAMETER) TO
MEET 1ST CUT (TO AVOID PINCHING)
• When bucking on a slope, always stand on the
uphill side of the log (Fig 17)
FIG. 17
• 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
BUCKING A LOG
BUCKING ON A SLOPE
STAND ON UPHILL SIDE
WHEN CUTTING BECAUSE
LOG MAY ROLL
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