Maintaining And Repairing The Chain Saw, 24.9 Causes And Operator Prevention Of Kickback; Service; Chain Saw Safety Warnings - Stihl MSA 120 C Instruction Manual

English
f) Never expose a battery to fire or very high temperatures.
Fire or temperatures above 130°C (265°F) can cause an
explosion.
g) Follow all charging instructions and never charge the
battery or the battery operated power tool outside the
temperature range specified in the instruction manual.
Incorrect charging or charging outside the permissible
temperature range can destroy the battery and increase
the fire risk.

24.7 Service

a) Have your electric power tool serviced by a qualified
repair person using only original replacement parts. This
will ensure that the safety of the power tool is maintained.
b) Never service damaged batteries. All servicing or
batteries should be carried out exclusively by the
manufacturer or authorised service centres.

24.8 Chain saw safety warnings

– Keep all parts of the body away from the saw chain when
the chain saw is operating, make sure the saw chain is not
contacting anything. A moment of inattention while
operating chain saws may cause entanglement of your
clothing or body with the chain saw.
– Always hold the chain saw with your right hand on the rear
handle and your left hand on the front handle. Holding the
chain saw the other way round increases the risk of injury
and may not be used.
– Hold your electric power tool only by the insulated grip
surfaces because the saw chain may contact hidden
electrical wires. Saw chains which touch a live wire make
metallic parts of an electric power tool live and could give
the user an electric shock.
– Wear safety glasses and hearing protection. Further
protective equipment for head, hands, legs and feet is
recommended. Suitable protective clothing helps reduce
the risk of injury from thrown wood chips and accidental
contact with the saw chain.
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24 General Power Tool Safety Warnings
– Do not operate a chain saw in a tree. There is an
increased risk of injury when working in a tree.
– Always keep proper footing and operate the chain saw
only when standing on a fixed, secure and level surface.
A slippery surface or instable support such as a ladder
could cause the operator to lose control of the chain saw.
– When cutting a limb that is under tension be alert for
spring back. When the tension in the wood fibres is
released the spring loaded limb may strike the operator
and/or throw the chain saw out of control.
– Use extreme caution when cutting brush and saplings.
The slender material may catch the saw chain and be
whipped toward you or pull you off balance.
– Carry the chain saw by the front handle with the chain saw
switched off and away from your body. When transporting
or storing the chain saw always fit the guide bar scabbard.
Proper handling of the chain saw will reduce the likelihood
of accidental contact with the moving saw chain.
– Follow instructions for lubricating, chain tensioning and
changing accessories. Improperly tensioned or lubricated
chain may either break or increase the chance for
kickback.
– Keep handles dry, clean and free from oil and grease.
Greasy, oily handles are slippery causing loss of control.
– Cut wood only. Do not use chain saw for purposes not
intended. Example: do not use chain saw for cutting
plastic, masonry or non-wood building materials. Use of
the chain saw for operations different than intended could
result in a hazardous situation.
24.9 Causes and operator prevention of kickback:
Kickback may occur when the nose or tip of the guide bar
touches an object, or when the wood closes in and pinches
the saw chain in the cut.
Tip contact in some cases may cause a sudden reverse
reaction, kicking the guide bar up and back towards the
operator.
Pinching the saw chain along the top of the guide bar may
push the guide bar rapidly back towards the operator.
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