Husqvarna 418EL 14″ 9672056-14 - Инструкция по эксплуатации - Страница 116

WORKING TECHNIQUES

116 – English

Cut all the way through the log from above. Avoid letting 
the chain touch the ground as you finish the cut. Maintain 
full throttle but be prepared for what might happen.

If it is possible (can you turn the log?) stop cutting about 
2/3 of the way through the log.

Turn the log and finish the cut from the opposite side. 

(53)

The log is supported at one end.

 There is a high risk 

that it will split.

Start by cutting from below (about 1/3 of the way through).

Finish by cutting from above so that the two cuts meet. 

(53)

The log is supported at both ends. 

There is a high risk 

that the chain will jam.

Start by cutting from above (about 1/3 of the way through).

Finish by cutting from below so that the two cuts meet. 

(54)

Tree felling technique

Safe distance

The safe distance between a tree that is to be felled and 
anyone else working nearby is at least 2 1/2 tree lengths. 
Make sure that no-one else is in this ”risk zone” before or 
during felling. 

(55)

Felling direction

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 in a location where you can stand and move about 
safely.

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

•

Obstacles within the reach of the tree: for example, 
other trees, power lines, roads and buildings.

•

Look for signs of damage and rot in the stem, this 
makes it more probably that the tree will break and 
start to fall before you expect it to. 

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.

The main point to avoid is letting the tree fall onto another 
tree. It is very dangerous to remove a trapped tree and 
there is high accident risk. See instructions under the 
heading Freeing a tree that has fallen badly.

Clearing the trunk and preparing your retreat

Delimb the stem up to shoulder height. It is safer to work 
from the top down and to have the tree between you and 
the saw.   

(56)

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. 

(57)

1

Danger zone

2

Retreat path

3

Felling direction

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.

Directional cuts

To make the directional cut you begin with the top cut. Aim 
using to the saw’s felling direction mark (1) toward a goal 
further forward in the terrain, where you would like the tree 
to fall (2). Stand on the right-hand side of the tree, behind 
the saw, and cut with a pull stroke.

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

(58)

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. 

(59)

Felling cut

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. 

(60)

IMPORTANT! It takes a lot of experience to fell a tree. 
Inexperienced users of chain saws should not fell trees. 
Do not attempt any task that you feel unsure of!

IMPORTANT! During critical felling operations, hearing 
protectors should be lifted immediately when sawing is 
completed so that sounds and warning signals can be 
heard.

!

WARNING! Unless you have special 
training we advise you not to fell trees 
with a diameter larger than the bar length 
of your saw!