Additional Safety Information; Batteries And Chargers - DeWalt DCH172 Manual De Instrucciones

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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.
28
• Air vents often cover moving parts and should be
avoided. Loose clothes, jewelry or long hair can be caught
in moving parts.

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:
V ......................... volts
Hz ....................... hertz
min ..................... minutes
or DC ...... direct current
...................... Class I Construction
(grounded)
.../min .............. per minute
BPM .................... beats per minute
IPM ..................... impacts per minute
RPM .................... revolutions per
minute
sfpm ................... surface feet per
minute
SPM .................... strokes per minute
A ......................... amperes
W ........................ watts

BATTERIES AND CHARGERS

The battery pack is not fully charged out of the carton.
Before using the battery pack and charger, read the
safety instructions below and then follow charging
procedures outlined. When ordering replacement battery
packs, be sure to include the catalog number and voltage.
READ ALL INSTRUCTIONS
Important Safety Instructions for All
Battery Packs

WARNING: Read all safety warnings, instructions,
and cautionary markings for the battery pack,
charger and product. Failure to follow the
warnings and instructions may result in electric
shock, fire and/or serious injury.
• Do not charge or use the battery pack in explosive
atmospheres, such as in the presence of flammable
liquids, gases or dust. Inserting or removing the battery
pack from the charger may ignite the dust or fumes.
NEVER force the battery pack into the charger. DO
•
NOT modify the battery pack in any way to fit into a
non‑compatible charger as battery pack may rupture
causing serious personal injury. Consult the chart
at the end of this manual for compatibility of batteries
and chargers.
• Charge the battery packs only in D
DO NOT splash or immerse in water or other liquids.
•
• DO NOT allow water or any liquid to enter battery pack.
or AC ........... alternating current
or AC/DC .... alternating or direct
current
...................... Class II Construction
(double insulated)
n o ....................... no load speed
n ......................... rated speed
...................... earthing terminal
..................... safety alert symbol
..................... visible radiation
..................... wear respiratory
protection
..................... wear eye protection
..................... wear hearing
protection
..................... read all
documentation
WALT chargers.
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