DeWalt DCH172 Manual De Instrucciones página 5

surfaces do not allow for safe handling and control of the tool
in unexpected situations.
5) Battery Tool Use and Care
a ) Recharge only with the charger specified by the
manufacturer. A charger that is suitable for one type of
battery pack may create a risk of fire when used with another
battery pack.
b ) Use power tools only with specifically designated
battery packs. Use of any other battery packs may create a
risk of injury and fire.
c ) When battery pack is not in use, keep it away from
other metal objects, like paper clips, coins, keys, nails,
screws or other small metal objects, that can make a
connection from one terminal to another. Shorting the
battery terminals together may cause burns or a fire.
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.
e ) Do not use a battery pack or tool that is damaged
or modified. Damaged or modified batteries may exhibit
unpredictable behavior resulting in fire, explosion or risk
of injury.
f ) Do not expose a battery pack or tool to fire or
excessive temperature. Exposure to fire or temperature
above 265 °F (130 °C) may cause explosion.
g ) Follow all charging instructions and do not charge
the battery pack or tool outside the temperature range
specified in the instructions. Charging improperly or at
temperatures outside the specified range may damage the
battery and increase the risk of fire.
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.
b ) Never service damaged battery packs. Service of
battery packs should only be performed by the manufacturer
or authorized service providers.
Additional Safety Instructions for Rotary Hammers
• Wear ear protectors. Exposure to noise can cause
hearing loss.
• Use auxiliary handle(s), if supplied with the tool. Loss
of control can cause personal injury.
• 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 other practical way to secure and
support the workpiece to a stable platform. Holding the
work by hand or against your body is 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. Wear a dust mask or respirator
for applications that generate dust. Ear protection may be
required for most applications.
• Keep a firm grip on the tool at all times. Do not
attempt to operate this tool without holding it with both
hands. 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.
Additional Safety Information

WARNING: Never modify the power tool or any part of it.
Damage or personal injury could result.

WARNING: ALWAYS use safety glasses. Everyday
eyeglasses are NOT safety glasses. Also use face or dust
mask if cutting operation is dusty. ALWAYS WEAR CERTIFIED
SAFETY EQUIPMENT:
• ANSI Z87.1 eye protection (CAN/CSA Z94.3),
• ANSI S12.6 (S3.19) hearing protection,
• NIOSH/OSHA/MSHA respiratory protection.

WARNING: Some dust created by power sanding, sawing,
grinding, drilling, and other construction activities contains
chemicals known to the State of California 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.
• 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. Direct particles away from face and body.
• Use the appropriate dust extractor vacuum to remove
the vast majority of static and airborne dust. Failure
to remove static and airborne dust could contaminate the
working environment or pose an increased health risk to the
operator and those in close proximity.
• Use clamps or other practical ways to secure and
support the workpiece to a stable platform. Holding the
work by hand or against your body is unstable and may lead
to loss of control and injury.
• Air vents often cover moving parts and should be
avoided. Loose clothes, jewelry or long hair can be caught in
moving parts.
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