Husqvarna 318 用户手册

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Cutting a log on the ground. There is little danger of the saw jamming or 
the log splintering, but it is difficult to avoid running the saw into the ground 
when breaking through at the end of the cut.

Saw straight through the log. Be careful at the end of the cut to avoid contact 
with the ground. Keep the saw running at full speed, but be prepared for the 
breakthrough.

- If it is possible to turn the log, stop cutting 2/3 of the way through the log.

- Turn the log and cut the remaining section from above.

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Cutting a log supported at one end. The log is more than likely to splinter if 
cut straight through from the top down.

- Make an initial cut from below (approx. 1/3 of the diameter).

- Finish the cut from above.

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Cutting a log supported at both ends. The saw is more than likely to jam in 
the kerf if cut straight through from above.

- Make an initial cut from the top (approx. 1/3 of the diameter).

- Finish the cut from below.