19
English
Warning! Never fell a tree by yourself if there is a risk of something being damaged such as
a house, enclosure etc. Ask the assistance of a professional. Never fell trees near electric
power lines or telephone lines. Check that there are no spectators or pets nearby before you
begin sawing; look up from time to time to check that nobody is entering the risk zone.
Normal tree felling consists of two stages of sawing: undercutting (C) and fell cutting (D).
Start with the upper undercut (C) on the side
of the tree turned in the direction of the fall
(E). Then perform the lower undercut hori-
zontally, so that it meets the upper undercut
(do not saw too far). The cuts should be
broad enough so that the tree may be guided
as much as possible during the fall.
Warning! Never walk in front of the tree
you have made a cut in!
Perform the felling (D) from the other side of
the tree and 3 to 5 cm above the lower cut.
NEVER saw through the remaining trunk completely. ALWAYS leave a stump (F), as it is the
stump that guides the tree during the fall. If the tree is sawn through completely you will lose
control over the direction of the fall, and the tree may fall in any direction. Insert a felling wed-
ge or break-iron in the felling cuts before sawing is complete. If you saw the entire felling cuts
before the felling wedge or break-iron have been positioned in the saw notch the tree may
lean backwards and clamp the guide. With the help of a felling wedge or break-iron, check
that there are no spectators or pets within the risk zone.
Warning! Check that that there are no spectators or pets within the risk zone before
you make your first cut.
1. Use timber compasses from plastic or wood (A) in order to prevent the guide (B) getting
stuck in the saw cut (fig. 17).
2. If the tree’s diameter is greater than the length of the guide, you will have to make two
cuts (fig. 18)
Fig. 17
A
B
Fig. 18
3-5 cm
3/4
D
1/4
F
C
E
Fig. 16
Содержание YT4646
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Страница 9: ... English Fig 1 Description 18 19 7 17 9 8 1 2 3 4 A 16 6 5 11 12 10 15 14 13 ...
Страница 29: ...29 Svenska Bild 1 Beskrivning 18 19 7 17 9 8 1 2 3 4 A 16 6 5 11 12 10 15 14 13 ...
Страница 49: ...49 Norsk Bilde 1 Beskrivelse 18 19 7 17 9 8 1 2 3 4 A 16 6 5 11 12 10 15 14 13 ...
Страница 69: ...69 Suomi Kuva 1 Kuvaus 18 19 7 17 9 8 1 2 3 4 A 16 6 5 11 12 10 15 14 13 ...