Nakayama EC2040, Руководство пользователя

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Fig. 2C
Fig. 2D
Fig. 3
Fig. 4C
1. Use wooden or plastic wedges (G) to prevent binding the bar or
chain (H) in the cut. Wedges also control felling (Fig. 2C).
2. When diameter of wood being cut is greater than the bar length,
make 2 cuts as shown (Fig. 2D).
WARNING: As the felling cut gets close to the hinge, the tree should begin to f all. When tree begins to
fall, remove saw from cut, unplug, put chain saw down, and leave area along retreat path (Fig. 2A).
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LIMBING
Limbing a tree is the process of removing the branches from a fallen tree. Do not remove supporting limbs (A) until after the log is bucked
(cut) into lengths (Fig. 3). Branches under tension should be cut from the bottom up to avoid binding the chain saw.
WARNING: Never cut tree limbs while standing on tree trunk.
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BUCKING
Bucking is cutting a fallen log into lengths. Make sure you have a good footing and stand uphill of the log when cutting on sloping
ground. If possible, the log should be supported so that the end to be cut off is not resting on the ground. If the log is supported at both ends
and you must cut in the middle, make a downward cut halfway through the log and then make the undercut. This will prevent the log from
pinching the bar and chain. Be careful that the chain does not cut into the ground when bucking as this causes rapid dulling of the chain.
When bucking on a slope, always stand on the uphill side.
1. Log supported along entire length: Cut from top (overbuck), being careful to avoid cutting into the ground (Fig. 4A).
2. Log supported on 1 end: First, cut from bottom (underbuck) 1/3 diameter of log to avoid splintering. Second, cut from above (over
buck) to meet first cut and avoid pinching (Fig. 4B).
3. Log supported on both ends: First, over buck 1/3 diameter of log to avoid splintering. Second, underbuck to meet first cut and avoid
pinching (Fig. 4C).
4. When bucking on a slope always stand on the uphill side of the log, as illustrated in Fig. 4D. When “cutting through”, to maintain
complete control release the cutting pressure near the end of the cut without relaxing your grip on the chain saw handles. Don’t 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.
NOTE: The best way to hold a log while bucking is to use a sawhorse. When this is not possible, the log should be raised and
Fig. 4A Fig. 4B
Fig.4D