WORKING TECHNIQUES
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.
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.
Limbing
When limbing thick branches you should use the same approach as for cutting.
Cut difficult branches piece by piece.
Felling technique for tree tops
WARNING! It takes a lot of experience to fell
!a tree. Inexperienced users of chain saws should not fell trees. Do not attempt any task beyond your experience level!
Safe distance
During tree maintenance work above ground level, the working area must always be secured and marked out with signs, tape or the like. The safe distance between the top of the tree that is to be felled and the nearest workplace must be at least 2 1/2 times the height of the tree. Make sure that no- one else is in this risk zone before or during felling.
Felling direction
The aim is to fell the tree in a position where you can limb and
Once you have decided which way you want the top of the tree to fall you must assess which way the top of 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.
WARNING! During critical felling operations,
!hearing protectors should be lifted immediately when sawing is completed so that sounds and warning signals can be heard.
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