DeWalt DC820 Instruction Manual page 5

_ WARNING: Use of this tool can generate and/or disperse dust,
which may cause serious and permanent respiratory or other
injury. Always use NIOSH/OSHA 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 ANSI $12.6 ($3.19) 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:
V................... volts A ...................... amperes
Hz................. hertz W. .................... watts
min ............... minutes "_ or AC .......... alternating
--- or DC... direct current current
(_) ................. Class I Construction _, or AC/DC... alternating or
(grounded) direct current
[] ................. Class II Construction no .................... no load
(double insulated)
.../min ........... per minute
BPM ............. beats per minute
IPM............... impacts per minute
RPM ............. revolutions per
minute
........................ speed
n ...................... rated speed
..................... earthing
terminal
_, ..................... safety alert
symbol
sfpm ............. surface feet per minute
Important Safety Instructions for All
Battery Packs
When ordering replacement battery packs, be sure to include catalog
number and voltage. Consult the chart at the end of this manual for
compatibility of chargers and battery packs.
The battery pack is not fully charged out of the carton. Before using
the battery pack and charger, read the safety instructions below. Then
follow charging procedures outlined.
READ ALL INSTRUCTIONS
• Do not charge or use battery in explosive atmospheres,
such as in the presence of flammable liquids, gases or dust.
Inserting or removing the battery from the charger may ignite the
dust or fumes.
• NEVER force battery pack into charger. DO NOT modify
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 DEWALT chargers.
• DO NOT splash or immerse in water or other liquids.
• Do not store or use the tool and battery pack in locations
where the temperature may reach or exceed 105 °F (40 °C)
(such as outside sheds or metal buildings in summer).
_ DANGER: Electrocution hazard. Never attempt to open the battery
pack for any reason. If battery pack case is cracked or damaged, do
not insert into charger. Do not crush, drop or damage battery pack.
Do not use a battery pack or charger that has received a sharp blow,
been dropped, run over or damaged in any way (i.e., pierced with a
nail, hit with a hammer, stepped on). Electric shock or electrocution
may result. Damaged battery packs should be returned to service
center for recycling.