Husqvarna 3120 XP Owners Manual - Page 21

Tree felling technique, fell trees. NEVER ATTEMPT A TASK YOU ARE - weight

Page 21 highlights

2 The log is supported at one end. There is a high risk that it will split. A Start by cutting from below (about 1/3 of the way through). SAFETY INSTRUCTIONS 3 Tree felling technique It takes a lot of experience to fell a tree. Inexperienced users of chain saws should not fell trees. NEVER ATTEMPT A TASK YOU ARE UNSURE OF. A Safe distance The safe distance between a tree that is to be felled and anyone else working nearby is at least 21/2 tree lengths. Make sure that no-one else is in this "risk zone" before or during felling. B Finish by cutting from above so that the two cuts meet. 3 The log is supported at both ends. There is a high risk that the chain will jam. A Start by cutting from above (about 1/3 of the way through). B 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. 1 2 3 B Felling direction The aim is to fell the tree in the best possible position for subsequent limbing and cross-cutting. You want it to fall on ground where you can move about safely. The main point to avoid is letting the tree fall onto another tree. It can be both difficult and dangerous to remove a tree in such a position (see point 4 in this section). 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 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. During critical felling operations, hearing protectors should be lifted immediately when sawing is completed so that sounds and warning signals can be heard. English - 21

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36

English –
21
SAFETY INSTRUCTIONS
2 The log is supported at one
end. There is a high risk
that it will split.
A
Start by cutting from
below (about 1/3 of the
way through).
B
Finish by cutting from
above so that the two
cuts meet.
3 The log is supported at both
ends. There is a high risk
that the chain will jam.
A
Start by cutting from
above (about 1/3 of the
way through).
B
Finish by cutting from
below so that the two
cuts meet.
3
Tree felling technique
It takes a lot of experience to fell a tree.
Inexperienced users of chain saws should not
fell trees. NEVER ATTEMPT A TASK YOU ARE
UNSURE OF.
1
2
3
Limbing
When limbing thick branches
you should use the same
approach as for cutting.
Cut difficult branches piece by
piece.
During critical felling operations, hearing
protectors should be lifted immediately when
sawing is completed so that sounds and
warning signals can be heard.
B
Felling direction
The aim is to fell the tree in the best possible position for
subsequent limbing and cross-cutting. You want it to fall on
ground where you can move about safely.
The main point to avoid is
letting the tree fall onto
another tree. It can be both
difficult and dangerous to
remove a tree in such a
position (see point 4 in this
section).
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
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.
A
Safe distance
The safe distance between a tree that is to be felled and
anyone else working nearby is at least 21/2 tree lengths. Make
sure that no-one else is in this "risk zone" before or during felling.