Kickback Safety Features - DeWalt DCCS620B Instruction Manual

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d ) Under abusive conditions, liquid may be ejected
from the battery; avoid contact. If contact accidentally
occurs, flush with water. If liquid contacts eyes,
additionally seek medical help. Liquid ejected from the
battery may cause irritation or burns.
6) Service
a ) Have your power tool serviced by a qualified repair
person using only identical replacement parts. This will
ensure that the safety of the power tool is maintained.
Chain Saw Safety Warnings

WARNING: Additional safety warnings for
chainsaws.
• Keep all parts of the body away from the saw chain
when the chain saw is operating. Before you start the
chain saw, 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 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
only, because the saw chain may contact hidden wiring.
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 fibers 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 cover. 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. 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.
4
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.
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
operating procedures or conditions and can be avoided by
taking proper precautions as given below:
• Maintain a firm grip, with thumbs and fingers
encircling 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
better 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
maintenance instructions for the saw chain. Decreasing
the depth gauge height can lead to increased kickback.

Kickback Safety Features


WARNING: The following features are included on your
saw to help reduce the hazard of kickback; however such
features will not totally eliminate this dangerous reaction. As
a chain saw user do not rely only on safety devices. You must
follow all safety precautions, instructions, and maintenance
in this manual to help avoid kickback and other forces which
can result in serious injury.
• Reduced-Kickback Guide Bar, designed with a small radius
tip which reduces the size of the kickback danger zone on
bar tip. A reduced - kickback guide bar is one which has
been demonstrated to significantly reduce the number and
seriousness of kickbacks when tested in accordance with
safety requirements for electric chain saws.
• Low-Kickback Chain, designed with a contoured depth
gauge and guard link which deflect kickback force and allow
wood to gradually ride into the cutter. A low-kickback chain is
a chain which has met kickback performance requirements of
ANSI B175.1–2012.
Chainsaw Names and Terms
• Bucking - The process of cross cutting a felled tree or log
into lengths.
• Motor Brake - A device used to stop the saw chain when the
trigger is released.
• Chain Saw Powerhead - A chain saw without the saw chain
and guide bar.
• Drive Sprocket or Sprocket - The toothed part that drives the
saw chain.
• Felling - The process of cutting down a tree.