Télécharger Imprimer la page

HENX H36LJ16 Mode D'emploi page 31

Publicité

Les langues disponibles
  • FR

Les langues disponibles

WARNING: Do not pull the saw chain with
your hand when it is bound by the sawdust.
Serious injury could result if the chain saw
starts accidentally. Press the saw chain
against the wood, move the chain saw back
and forth to discharge the debris. Always
remove the battery pack before cleaning.
Wear heavy protective gloves when handling
the saw chain.
WARNING: Never start the chain saw when
it is in contact with the wood. Always allow
the chain saw reach full speed before
applying the saw to the wood.
b. Felling a tree
Hazardous Conditions
WARNING: When felling a tree, it is
important that you heed the following
warnings to prevent possible serious injury.
• Do not fell trees during periods of high
wind or heavy precipitation. Wait until the
hazardous weather has ended.
• Do not fell trees that lean at extreme
angles or large trees with rotten limbs,
loose bark, or hollow trunks. Instead,
have these trees pushed or dragged
down with heavy equipment and then cut
them up.
• Do not fell trees near electrical wires or
buildings.
• Check the tree for damaged or dead
branches that could fall and hit you
during felling.
• Periodically glance at the top of the tree
during the back cut to assure the tree is
going to fall in the desired direction.
• If the tree starts to fall in the wrong
direction, or if the saw gets caught or
hung up during the fall, leave the saw and
save yourself!
c. Preparation For Tree Felling
• When bucking and felling operations are
being performed by two or more persons
at the same time, the felling operation
should be separated from the bucking
operation by a distance of at least twice
the height of the tree being felled. Trees
should not be felled in a manner that
would endanger any person, strike any
utility line or cause any property damage.
If the tree does make contact with any
utility line, the utility company should be
notified immediately.
• The chain saw operator should stand on
the uphill side of the terrain, as the tree
is likely to roll or slide downhill after it is
felled.
• Before any cuts are started, pick your
escape route (or routes, in case the
intended route is blocked). Clear the
immediate area around the tree and
make sure that there are no obstructions
in your planned paths of retreat. Clear a
path of safe retreat approximately 135°
from the planned line of fall. The retreat
path should extend back and diagonally
to the rear of the expected line of fall (See
Fig O).
• Before felling is started, consider the
natural lean of the tree, the location of
larger branches and the wind direction to
judge which way the tree will fall.
• Remove dirt, stones, loose bark, nails,
staples, and wire from the tree where
felling cuts are to be made.
d. Felling Back Cut
1. Make the felling back cut at least 50.8
mm higher than the horizontal notching
cut (See Fig. P). Keep the felling back cut
parallel to the horizontal notching cut. Make
the felling back cut so that enough wood
is left to act as a hinge. The hinge wood
keeps the tree from twisting and falling in
the wrong direction. Do not cut through the
hinge.
2. As the felling cut gets close to the hinge,
the tree should begin to fall. If there is any
chance that the tree may not fall in the
desired direction or it may rock back and
bind the saw chain, stop cutting before the
felling back cut is complete and use wedges
of wood, plastic or aluminum to open the
cut and drop the tree along the desired line
of fall.
3. When the tree begins to fall, remove the
chain saw from the cut, stop the motor, put
the chain saw down, then use the retreat
path planned. Be alert for overhead limbs
falling and watch your footing.
English
31

Publicité

loading

Ce manuel est également adapté pour:

7063704