Ryobi P546A User Manual - Page 23

Bucking, Bucking With A Wedge, Bucking Logs Under Stress

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OPERATION BUCKING See Figure 25. Bucking is the term used for cutting a fallen tree to the desired log length. n Cut only one log at a time. n Support small logs on a saw horse or another log while bucking. n Keep a clear cutting area. Make sure that no objects can contact the guide bar nose and chain during cutting, this can cause kickback. To avoid the danger, keep the SAFE-T-TIP™ anti-kickback device attached while cutting. Refer to Kickback in the Specific Safety Rules section of this manual for more information. ■n When bucking on a slope, always stand on the uphill side of the log. To maintain complete control of the chain saw when cutting through the log, release the cutting pressure near the end of the cut without relaxing your grip on the chain saw handles. Do not let the chain contact the ground. After completing the cut, wait for the saw chain to stop before you move the chain saw. Always stop the motor before moving from tree to tree. BUCKING WITH A WEDGE See Figure 26. 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. NOTE: When bucking or felling with a wedge, you may need to remove the SAFE-T-TIP™ anti-kickback device to allow the bar to be drawn through the cut. After you complete the cut, reinstall the tip. BUCKING LOGS UNDER STRESS See Figure 27. Make the first bucking cut 1/3 of the way through the log and finish with a 2/3 cut on the opposite side. As you cut the log, 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. WEDGE LOG SUPPORTED AT ONE END Fig. 26 FINISHING CUT LOAD 1ST CUT 1/3 DIA. LOG SUPPORTED AT BOTH ENDS 1ST CUT 1/3 DIA. LOAD FINISHING CUT Fig. 27 Page 23 - English

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Page 23 — English
WEDGE
Fig. 26
LOAD
FINISHING CUT
1ST CUT 1/3 DIA.
LOG SUPPORTED AT ONE END
LOG SUPPORTED AT BOTH ENDS
FINISHING CUT
1ST CUT 1/3 DIA.
LOAD
Fig. 27
BUCKING
See Figure 25.
Bucking is the term used for cutting a fallen tree
to the desired log length.
Cut only one log at a time.
Support small logs on a saw horse or another
log while bucking.
Keep a clear cutting area. Make sure that no
objects can contact the guide bar nose and
chain during cutting, this can cause kickback.
To avoid the danger, keep the SAFE-T-TIP
™
anti-kickback device attached while cutting.
Refer to
Kickback
in the
Specific Safety Rules
section of this manual for more information.
When bucking on a slope, always stand on the
uphill side of the log. To maintain complete
control of the chain saw when cutting through
the log, release the cutting pressure near the
end of the cut without relaxing your grip on the
chain saw handles. Do not let the chain contact
the ground. After completing the cut, wait for the
saw chain to stop before you move the chain
saw. Always stop the motor before moving from
tree to tree.
BUCKING WITH A WEDGE
See Figure 26.
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.
NOTE:
When bucking or felling with a wedge, you
may need to remove the SAFE-T-TIP
™
anti-kick-
back device to allow the bar to be drawn through
the cut. After you complete the cut, reinstall the tip.
BUCKING LOGS UNDER STRESS
See Figure 27.
Make the first bucking cut 1/3 of the way through
the log and finish with a 2/3 cut on the opposite
side. As you cut the log, 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.
OPERATION