OPERATION
BUCKING LOGS UNDER STRESS
See Figure 28.
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.
OVERBUCKING
See Figure 29.
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 30.
Begin on the under side of the log with the top of the saw against the log; exert light pressure upward. During underbucking, the saw will tend to push back at you. Be prepared for this reaction and hold the saw firmly to maintain control.
LOG SUPPORTED AT ONE END
FINISHING CUT | LOAD | ||
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1ST CUT 1/3 DIA
LOG SUPPORTED AT BOTH ENDS
1ST CUT 1/3 DIA LOAD 
FINISHING CUT | Fig. 28 |
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OVERBUCKING | Fig. 29 |
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UNDERBUCKING
Fig. 30
Page 23 — English