Husqvarna 3120XP 用户手册

20 – 

English

The safe distance between a tree that is to be felled and 
anyone else working nearby is at least 21/2 tree lengths. 
Make sure that no-one else is in this ”risk zone” before or 
during felling.

The aim is to fell the tree in a position where you can limb and 
cross-cut the log as easily as possible. You want it to fall on 
ground where you can stand and move about safely. The main 
point to avoid is letting the tree fall onto another tree.  See 
instructions under the heading Freeing a tree that has fallen 
badly.

Once you have decided which way you want the tree to fall 
you must judge which way the tree would fall naturally.

Several factors affect this:

•

Lean of the tree

•

Bend

•

Wind direction

•

Arrangement of branches

•

Weight of snow

You may find you are forced to let the tree fall in its natural 
direction because it is impossible or dangerous to try to make 
it fall in the direction you first intended.

Another very important factor, which does not affect the felling 
direction but does affect your safety, is to make sure the tree 
has no damaged or dead branches that might break off and 
hit you during felling.

Remove any branches that are in the way. To do this it is best 
to work from the top down and keep the trunk between you 
and the chain saw. Never limb above shoulder height.

Remove any undergrowth from the base of the tree and check 
the area for obstacles (stones, branches, holes, etc.) so that 
you have a clear path of retreat when the tree starts to fall. 
Your path of retreat should be roughly 135 degrees away from 
the intended felling direction.

Felling is done using three cuts. First you make the directional 
cuts, which consist of the top cut and the bottom cut, then you 
finish with the felling cut. By placing these cuts correctly you 
can control the felling direction very accurately.

To make the directional cuts you begin with the top cut. Stand 
to the right of the tree and cut on the pull stroke.

Next make the bottom cut so that it finishes exactly at the end 
of the top cut.