DeWalt DCH253-XE Instruction Manual page 6

• Hold power tool by insulated gripping surfaces, when performing an operation
where the cutting accessory may contact hidden wiring. Cutting accessory
contacting a "live" wire may make exposed metal parts of the power tool "live"
and could give the operator an electric shock.
• Be certain that the material being drilled does not conceal electric or gas
service and that their locations have been verified with the utility companies.
• Use clamps or another practical way to secure and support the workpiece
to a stable platform. Holding the work by hand or against your body leaves it
unstable and may lead to loss of control.
• Wear safety goggles or other eye protection. Hammering operations cause
chips to fly. Flying particles can cause permanent eye damage.
• Keep a firm grip on the tool at all times. Do not attempt to operate this tool
without holding it with both hands. It is recommended that the side handle
be used at all times. Operating this tool with one hand will result in loss of
control. Breaking through or encountering hard materials such as re-bar may be
hazardous as well.
• Do not operate this tool for long periods of time. Vibration caused by hammer
action may be harmful to your hands and arms. Use gloves to provide extra
cushion and limit exposure by taking frequent rest periods.
• Do not recondition bits yourself. Chisel reconditioning should be done by an
authorized specialist. Improperly reconditioned chisels could cause injury.
• Accessories and tool may get hot during operation. Wear gloves when handling
them if performing heat producing applications such as hammerdrilling and
drilling metals.
• Never lay the tool down until the bit has come to a complete stop. Moving bits
could cause injury.
• Do not strike jammed bits with a hammer to dislodge them. Fragments of metal
or material chips could dislodge and cause injury.
• Slightly worn chisels can be resharpened by grinding.
NOTE: Do not overheat the bit (discoloration) while grinding a new edge. Badly worn
chisels require reforging. Do not reharden and temper the chisel.
• Air vents often cover moving parts and should be avoided. Loose clothes,
jewellery or long hair can be caught in moving parts.
WARNING: We recommend the use of a residual current device with a residual
current rating of 30mA or less.
WARNING: ALWAYS wear approved protective safety equipment complying with
the following standards:
• Eye protection: AS/NZS1337 Eye Protectors for Industrial Applications;
• Hearing protection: AS/NZS1270 Acoustics – Hearing Protection;
• Respiratory protection: AS/NZS1716 Respiratory Protective Devices.
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and
other construction activities contains chemicals known to cause cancer, birth defects
or other reproductive harm. Some examples of these chemicals are:
• lead from lead-based paints,
• crystalline silica from bricks and cement and other masonry products, and
• arsenic and chromium from chemically-treated lumber.
Your risk from these exposures varies, depending on how often you do this type of
work. To reduce your exposure to these chemicals: work in a well ventilated area, and
work with approved safety equipment, such as those dust masks that are specially
designed to filter out microscopic particles.
• Avoid prolonged contact with dust from power sanding, sawing, grinding,
drilling, and other construction activities. Wear protective clothing and wash
exposed areas with soap and water. Allowing dust to get into your mouth, eyes,
or lay on the skin may promote absorption of harmful chemicals.
WARNING: Use of this tool can generate and/or disburse dust, which may cause
serious and permanent respiratory or other injury. Always use AS/NZS1716 approved
respiratory protection appropriate for the dust exposure. Direct particles away from
face and body.
WARNING: Always wear proper personal hearing protection that conforms to
AS/NZS1270 during use. Under some conditions and duration of use, noise from this
product may contribute to hearing loss.
CAUTION: When not in use, place tool on its side on a stable surface where it
will not cause a tripping or falling hazard. Some tools with large battery packs will
stand upright on the battery pack but may be easily knocked over.
• The label on your tool may include the following symbols. The symbols and their
definitions are as follows:
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