Husqvarna 1151436-95 用户手册

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WORKING TECHNIQUES
28 – English
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.
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 
instructions under the heading 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.
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 try to fell the tree that is trapped.
Never work in the risk zone of the hanging trapped tree.
The safest method is to use a winch.
Tractor-mounted
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.