Idiomas disponibles
Idiomas disponibles
ENGLISH
How the front hand guard works
In the event of kickback, your left hand comes in contact with
the front hand guard (3), pushing it forwards, toward the
workpiece, and stops the tool within a few fractions of a
second.
Felling (fi g. K, L & M)
Inexperienced users should not attempt to fell trees. The user
may suffer injury or cause damage to property as a result of
failure to control the direction of fall, the tree may splinter or
damaged/dead branches may fall during cutting:
The safe distance between a tree to be felled and bystanders,
buildings and other objects is at least 2 1/2 times the height of
the tree. Any bystander, building or object within this distance
is at risk from being struck by the tree when felled.
Before attempting to fell a tree:
Make sure that there are no local by-laws or regulations
that would prohibit or control the felling of the tree.
Consider all conditions that may affect the direction of fall,
including:
The intended direction of fall.
The natural lean of the tree.
Any unusual heavy limb structure or decay.
Surrounding trees and obstacles including overhead
lines and underground drains.
The wind speed and direction.
Pre-plan a safe exit from falling trees or branches.
Make sure that the exit route is clear of obstacles that would
prevent or hinder movement. Remember that wet grass and
freshly cut bark is slippery.
Do not attempt to fell trees where the tree diameter is
greater than the cutting length of the chainsaw:
Cut a direction notch to determine the direction of fall.
Make a horizontal cut to a depth of between 1/5th and
1/3rd of the diameter of the tree, perpendicular to the line
of fall at the base of the tree (fi g. K).
Make a second cut from above to intersect with the fi rst
and make a notch of about 45°.
Make a single horizontal felling cut from the other side 25
mm to 50 mm above the centre of the direction notch. (fi g.
L). Do not cut through to the direction notch, you could
lose control of the direction of fall.
Drive a wedge or wedges into the felling cut to open it and
drop the tree (fi g. M).
Pruning trees
Make sure that there are no local by-laws or regulations that
would prohibit or control the pruning of the tree limbs. Pruning
should only be undertaken by experienced users there is an
increased risk of the saw saw chain pinching and kick back.
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Before pruning consideration should be given to
conditions affecting the direction of fall including:
The length and weight of the branch to be cut.
Any unusual heavy limb structure or decay.
Surrounding trees and obstacles including overhead.
The wind speed and direction.
The branch being intertwined with other branches.
The operator should consider access to the tree limb and the
direction of fall. The tree branch is liable to swing towards
the tree trunk. In addition to the user bystanders, objects and
property below the branch will be at risk.
To avoid splintering, make the fi rst cut in an upward direc-
tion to a maximum depth of one third the diameter of the
branch.
Make the second cut downwards to meet the fi rst.
Logging (fi g. N, O & P)
How you should cut depends on how the log is supported.
Use a saw horse whenever possible.
Always start a cut with the saw chain running and the spiked
bumper (22) in contact with the wood (fi g. N).
To complete the cut use a pivoting action of the spiked
bumper against the wood.
When supported along its whole length:
Make a downward cut, but avoid cutting the earth as this
will blunt your saw chain quickly.
When supported at both ends:
First, cut one third down to avoid splintering and second,
cut up to meet the fi rst cut.
When supported at one end:
First cut one third up to avoid splintering and second, cut
down to prevent splintering.
When on a slope:
Always stand on the uphill side.
When attempting to cut a log on the ground (fi g. O)
Secure the workpiece using chocks or wedges. The user
or a bystander should not steady the log by sitting or
standing on it. Make sure that the saw chain does not
contact the ground.
When using a saw horse (fi g. P):
This is strongly recommended whenever possible.
Position the log in a stable position. Always cut on the
outside of the saw horse arms. Use clamps or straps to
secure the workpiece.
