Bucking A Log - Ryobi OCS1830BL Original Instructions Manual

OPERATION

BUCKING A LOG

WARNING: Kickback may occur when
the nose or tip of the guide bar touches
an object, or when the wood closes in and
pinches the saw chain in the cut.
WARNING: The reaction force is always
opposite to the direction the chain is moving.
Thus, the operator must be ready to control
the tendency for the product to pull away
(forward motion) when cutting on the bottom
edge of the bar. Always firmly engage the
bumper spike to avoid such movement. The
product can be pushed backwards (towards
the operator) when cutting along the top
edge. To avoid this, make sure that the
chain is not jammed when cutting along the
top edge.
NOTE: 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.
NOTE: When the log is supported on both
ends, cut 1/3 the diameter from the top
(overbuck), then make the finished cut by
underbucking the lower 2/3 to meet the first
cut.
2/3
2
1
1/3
1
1/3
2/3
2
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