Bosch GKE Professional 40 BCE Original Instructions Manual page 21

OBJ_BUCH-716-004.book Page 21 Tuesday, August 23, 2011 3:50 PM
Store idle power tools out of the reach of children and
do not allow persons unfamiliar with the power tool or
these instructions to operate the power tool. Power
tools are dangerous in the hands of untrained users.
Maintain power tools. Check for misalignment or bind-
ing of moving parts, breakage of parts and any other
condition that may affect the power tool's operation. If
damaged, have the power tool repaired before use.
Many accidents are caused by poorly maintained power
tools.
Keep cutting tools sharp and clean. Properly maintained
cutting tools with sharp cutting edges are less likely to bind
and are easier to control.
Use the power tool, accessories and tool bits etc. in ac-
cordance with these instructions, taking into account
the working conditions and the work to be performed.
Use of the power tool for operations different from those
intended could result in a hazardous situation.
Service
Have your power tool serviced by a qualified repair per-
son using only identical replacement parts. This will en-
sure that the safety of the power tool is maintained.
Chain Saw Safety Warnings
Keep all parts of the body away from the saw chain
when the motor is operating. Before you start the chain
saw, make sure the saw chain is not contacting any-
thing. A moment of inattention while operating chain saws
may cause entanglement of your clothing or body with the
saw chain.
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 with a reversed hand configuration
increases the risk of personal injury and should never be
done.
Hold the power tool by insulated gripping surfaces on-
ly, because the saw chain may contact hidden wiring or
its own cord. Saw chains contacting a "live" wire may
make exposed metal parts of the power tool "live" and
could give the operator an electric shock.
Wear safety glasses and hearing protection. Further
protective equipment for head, hands, legs and feet is
recommended. Adequate protective clothing will reduce
personal injury by flying debris or accidental contact with
the saw chain.
Do not operate a chain saw in a tree. Operation of a chain
saw while up in a tree may result in personal injury.
Always keep proper footing and operate the chain saw
only when standing on fixed, secure and level surface.
Slippery or unstable surfaces such as ladders may cause a
loss of balance or 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 re-
leased the spring loaded limb may strike the operator
and/or throw the chain saw out of control.
Bosch Power Tools
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 cover. Proper handling of the chain saw will re-
duce the likelihood of accidental contact with the moving
saw chain.
Follow instructions for lubricating, chain tensioning
and changing accessories. Improperly tensioned or lubri-
cated 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. Don't use chain saw for purposes not in-
tended. For 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.
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 re-
action, kicking the guide bar up and back towards the opera-
tor.
– Pinching the saw chain along the top of the guide bar may
push the guide bar rapidly back towards the operator.
– Either of these reactions may cause you to lose control of
the saw which could result in serious personal injury. Do not
rely exclusively upon the safety devices built into your saw. As
a chain saw user, you should take several steps to keep your
cutting jobs free from accident or injury.
Kickback is the result of tool misuse and/or incorrect operat-
ing procedures or conditions and can be avoided by taking
proper precautions as given below:
Maintain a firm grip, with thumbs and fingers encir-
cling the chain saw handles, with both hands on the saw
and position your body and arm to allow you to resist
kickback forces. Kickback forces can be controlled by the
operator, if proper precautions are taken. Do not let go of
the chain saw.
Do not overreach and do not cut above shoulder height.
This helps prevent unintended tip contact and enables bet-
ter control of the chain saw in unexpected situations.
Only use replacement bars and chains specified by the
manufacturer. Incorrect replacement bars and chains
may cause chain breakage and/or kickback.
Follow the manufacturer's sharpening and mainte-
nance instructions for the saw chain. Decreasing the
depth gauge height can lead to increased kickback.
Children and juveniles, with the exception of appren-
tices older than 16 years and under supervision, may
not operate the chain saw. The same applies for per-
sons who do not or do not sufficiently know how to han-
dle the chain saw. The operating instructions should al-
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