Causes And Prevention Of Kickback (En 60745 Part 2-13); Safety Instructions For The Polemounted Pruner; Work Instructions (13) - AL-KO CSA 2020 Mode D'emploi

Safety
■
Do not work with the chain saw in a tree.
Risk of injury when operating in a tree.
■
Always make sure you are standing firmly
and only use the chain saw if you are
standing on firm, secure and level ground.
Slippery ground or unstable standing surfac-
es such as on a ladder can lead to a loss of
equilibrium or loss of control over the chain
saw.
■
When cutting a branch that is under ten-
sion, expect it to spring back. When the
tension in the wood fibres is released, the
branch under tension can hit the operator
and/or cause a loss of control over the chain
saw.
■
Take particular care when cutting under-
growth and young trees. The thin material
can get caught in the saw chain and hit you
or cause you to lose your balance.
■
Carry the chain saw at the front grip when
it is switched off, and have the saw chain
pointing away from your body. Always put
on the protective cover when transporting
or storing the chain saw. Careful handling
of the chain saw reduces the probability of in-
advertent contact with the running saw chain.
■
Follow the instructions for lubrication,
chain tensioning and changing accesso-
ries. An incorrectly tensioned or lubricated
chain can either tear or increase the risk of
kickback.
■
Keep the grips dry, clean and free from oil
and grease. Greasy, oily grips are slippery
and result in loss of control.
■
Only saw wood. Do not use the chain saw
for work for which it is not intended. Ex-
ample: Do not use the chain saw for saw-
ing plastic, masonry or construction ma-
terials that are not made of wood. Using
the chain saw for non-designated work can
lead to dangerous situations.
3.9 Causes and prevention of kickback (EN
60745 Part 2-13)
Kickback can occur if the tip of the chain bar
touches an object or if the wood bends and traps
the saw chain during cutting.
In many cases, contact with the tip of the bar can
lead to an unexpected, rearward reaction causing
the chain bar to be knocked upwards and to-
wards the operator.
442216_a
If the saw chain is trapped on the top edge of the
chain bar, the bar can be forced rapidly back to-
wards the operator.
Each of these reactions can result in you losing
control of the saw, with the possibility of severe
injury. Do not rely entirely on the safety devices
installed on the chain saw. As user of a chain
saw, you should take various measures to be
able to work without accident and injury.
Kickback is the consequence of incorrect or faulty
use of the electric tool. It can also be prevented
by taking suitable precautions as described be-
low:
■
Hold the saw firmly with both hands, with
your thumb and fingers around the grips
of the chain saw. Hold your body and
arms in a position that allows you to with-
stand the kickback forces. If suitable mea-
sures are taken, the operator will be able to
control the kickback forces. Never release
the chain saw.
■
Avoid any abnormal posture, and do not
saw anything above shoulder height. This
will avoid inadvertent contact with the tip of
the bar, and allow better control of the chain
saw in unexpected situations.
■
Always use replacement bars and saw
chains prescribed by the manufacturer. In-
correct replacement bars and saw chains can
lead to the chain breaking and/or to kickback.
■
Comply with the instructions of the manu-
facturer for sharpening and maintaining
the saw chain. Depth limiters set too low in-
crease the tendency to kickback.
3.10 Safety instructions for the polemounted
pruner

3.10.1 Work instructions (13)

■
During pruning, lift the polemounted pruner
(13/1) to a maximum angle of 60° (13/2). At a
steeper angle, you inevitably get into the area
where cut-off branches can fall. Always stand
outside this area.
■
Plan an escape route in advance for getting
out of the way of falling branches. This es-
cape route must be free of obstacles such as
sawn-off branches or slippery places that
could hinder getting out of the way.
■
Keep a safe distance from bystanders, ani-
mals, objects or buildings, which is at least
approx. 2.5x the length of the branch to be
sawn off. If that is not possible, saw the
branch off piece by piece.
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