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24
OPERATING YOUR CHAIN SAW
Fig. 19
Fig. 18
Fig. 20 Fig. 21
BUCKING WITH A WEDGE
(See Figure 18)
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.
BUCKING LOGS UNDER STRESS
(See Figure 19)
When the log is supported on one end, cut 1/3 the diameter from the underside. Then make the
finished cut by overbucking to meet the first cut.
When the log is supported on bothe edn, cut 1/3 of the diameter from the top overback. Then
make the finished cut by under bucking the lower 2/3 to meet the first cut.
OVERBUCKING
(See Figure 20)
Begin on the top side of the log with the bottom of the saw against the log; exert light pressure
downward. Note that the saw will tend to pull away from you.
UNDERBUCKING
(See Figure 21)
Begin on the under side of the log with the top of the saw against the log; exert light pressure
upward. During under bucking, the saw will tend to push back at you. Be prepared for this
1ST CUT 1/3 DIA
1ST CUT 1/3 DIA
FINISHING CUT
FINISHING CUT
LOG SUPPORTED AT ONE END
OVERBUCKING
AVOID CUTTING EARTH
UNDERBUCKING
LOG SUPPORTED AT BOTH ENDS
LOAD
LOAD
PULL
PUSH
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