- 12 -
should be used:
- Heavy-duty padded trousers.
- Coloured jacket to ensure that the operator is easily visible.
- Heavy-duty leggings and heavy-duty, safety shoes with non-skid soles
and steel toes.
- Heavy-duty gloves and, if possible, insulated to dampen vibrations.
- Helmet with visor for protection from falling branches and materials.
- Soundproof headphones to protect hearing.
3. Limiting access to danger zones
Limit access to the area by marking it off with warning signs.
4. Precautions to be taken according to weather conditions for
people in the area and eventual local regulations.
- IMPORTANT! Do not use the chain saw in adverse weather condi-
tions: rain, snow, low visibility, near cables or electrical networks, or
where there may be a risk of explosions.
- Never cut in the presence of people or animals and keep at a distance
twice the height of the tree.
- Find out about any restrictions on forest cutting issued by institu-
tions, municipal ...
5. Preparing and using escape routes (see also point 6)
- IMPORTANT! Before you begin felling a tree, you must decide
the fall direction, identify the escape route and then eliminate all
obstacles along it.
N.B.: The direction of the fall is determined by the cut.
- The escape routes for the operator are outlined in figure below.
a) Fall direction
b) Danger area
c) Escape route
6. Felling trees on slopes
- IMPORTANT! When felling a tree on a slope, the operator must
position himself on the upper side because, once the tree is cut, it
will roll downhill.
stazionate sul lato alto quando tagliate
perchè il tronco può rotolare
stand on uphill when cutting because
log may roll
7. Felling trees in relation to the saw’s cutting capacity.
Do not make cuts on diameters greater than the maximum cutting
length (see technical specifications). It is always better not to exag-
gerate the diameter of the cut.
8.How to control the fall direction of the tree being cut.
Usually, felling a tree consists of two main cuts, the face cut and the
undercut which is needed to fell the tree.
FIG. 1
cerniera
hinge
5cm
5cm
intaglio
notch
taglio di abbattimento
felling back out
direzione di caduta
direction of fall
- Begin with the face cut on the side of the tree facing the direction
of the fall.
- The cut must be as deep as about 1/3 of the trunk diameter.
- After this operation, make the cut on the other side of the tree at
about 5 cm above the height of the face cut (Fig. 1).
- Do not walk in front of the tree on the fall side after you have made
the cut.
- IMPORTANT! Before proceeding with the final cut, check that there
are no persons, animals, or objects in the fall area.
- IMPORTANT! When the tree begins to fall, extract the chain saw
from the cut, lay it on the ground, and leave the area quickly along
the escape route.
9. Using wedges for felling trees
- Use wooden or plastic wedges (G Fig.2) to prevent the bar or the
chain from getting lodged in the trunk.
G
H
FIG. 2
- IMPORTANT! When the tree begins to fall, extract the chain saw
from the cut, lay it on the ground, and leave the area quickly along
the escape route.
10. Cutting branches (debranching)
Introduction:
This operation consists of cutting the branches of felled trees.
Note: Do not cut the branches that support the felled tree before
cutting it in pieces. (Fig.3)
- IMPORTANT! Do not climb onto the trunk to cut it.
A
FIG. 3
11. Cutting fallen trunks
Introduction:
This operation consists of cutting the felled trunk into several pieces.
Methods for cutting the trunk according to its position follow:
1. Trunk supported along its entire length:
