WORKING TECHNIQUES
move in the opposite direction to your intended felling direction.
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
When the felling cut and directional cut are complete the tree should start to fall by itself or with the aid of a felling wedge or breaking bar.
We recommend that you use a bar that is longer than the diameter of the tree, so that you can make the felling cut and directional cuts with single cutting strokes. See the Technical data section to find out which lengths of bar are recommended for your saw.
There are methods for felling trees with a diameter larger than the bar length. However these methods involve a much greater risk that the kickback zone of the bar will come into contact with the tree.
WARNING! Unless you have special ! training we advise you not to fell trees
with a diameter larger than the bar length of your saw!
Freeing a tree that has fallen badly
Freeing a ”trapped tree”
It is very dangerous to remove a trapped tree and there is high accident risk.
Never work in the risk zone of the hanging trapped tree.
The safest method is to use a winch.
•
•Portable
Cutting trees and branches that are in tension
Preparations:
Work out which side is in tension and where the point of maximum tension is (i.e. where it would break if it was bent even more).
Decide which is the safest way to release the tension and whether you are able to do it safely. In complicated situations the only safe method is to put aside your chain saw and use a winch.
General advice:
Position yourself so that you will be clear of the tree or branch when the tension is released.
32 – English
