Husqvarna 1151439-95 用户手册

24 – 

English

•

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.

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.

The directional cuts should run 1/4 of the diameter through 
the trunk and the angle between the top cut and bottom cut 
should be 45

°

.

The line where the two cuts meet is called the directional cut 
line. This line should be perfectly horizontal and at right 
angles (90

°

) to the chosen felling direction.

The felling cut is made from the opposite side of the tree and 
it must be perfectly horizontal. Stand on the left side of the 
tree and cut on the pull stroke.

Make the felling cut about 3-5 cm (1.5-2 inches) above the 
bottom directional cut.

Use full throttle and bring the bar and chain slowly into the 
tree. Make sure the tree does not start to move in the opposite 
direction to your intended felling direction. Drive a wedge or 
breaking bar into the cut as soon as it is deep enough.

Finish the felling cut parallel with the directional cut line so 
that the distance between them is at least 1/10 of the trunk 
diameter. The uncut section of the trunk is called the felling 
hinge.

The felling hinge controls the direction that the tree falls in.

All control over the felling direction is lost if the felling hinge is 
too narrow or non-existent, or if the directional cuts and felling 
cut are badly placed.