DeWalt DCG412B User manual

If you have questions or comments, contact us.
Pour toute question ou tout commentaire, nous contacter.
Si tiene dudas o comentarios, contáctenos.
1-800-4-DeWALT
Instruction Manual
Guide D’utilisation
Manual de instrucciones
DCG412
20V Max* Cordless Grinder
Meuleuse sans fil 20V max*
Esmeriladora inalámbrica de 20V Máx*
final page size: 8.5 x 5.5 in

ENGLISH
English (original instructions) 1
Français (traduction de la notice d’instructions originale) 17
Español (traducido de las instrucciones originales) 36

ENGLISH
1
English (original instructions)
Definitions: Safety Alert Symbols and Words
This instruction manual uses the following safety alert symbols and words to alert you to hazardous situations and your risk
of personal injury or property damage.
DANGER: Indicates an imminently hazardous situation which, if not avoided, will result in death or seriousinjury.
WARNING: Indicates a potentially hazardous situation which, if not avoided, could result in death or seriousinjury.
CAUTION: Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderateinjury.
(Used without word) Indicates a safety related message.
NOTICE: Indicates a practice not related to personal injury which, if not avoided, may result in propertydamage.
WARNING: Read all safety warnings and all
instructions. Failure to follow the warnings and
instructions may result in electric shock, fire and/or
seriousinjury.
WARNING: To reduce the risk of injury, read the
instructionmanual.
If you have any questions or comments about this or
any
DeWALT
tool, call us toll free at:
1-800-4-
DeWALT
(1-800-433-9258).
1 Trigger switch
2 Lock-off button
3 Spindle lock button
4 Spindle
5 Side handle
6 Unthreaded backing flange
7 Threaded locking flange
8 Type 27 Guard (4.5"/115 mm)
9 Guard release lever
10 Battery pack
11 Battery release button
Fig. A
5
4
6
7
8
2 13
9
11
10

ENGLISH
2
GENERAL POWER TOOL SAFETY WARNINGS
WARNING: Read all safety warnings,
instructions, illustrations and specifications
provided with this power tool. Failure to follow all
instructions listed below may result in electric shock,
fire and/or seriousinjury.
SAVE ALL WARNINGS AND
INSTRUCTIONS FOR FUTURE
REFERENCE
The term “power tool” in the warnings refers to your mains-
operated (corded) power tool or battery-operated (cordless)
powertool.
1) Work Area Safety
a ) Keep work area clean and well lit. Cluttered or dark
areas inviteaccidents.
b ) Do not operate power tools in explosive
atmospheres, such as in the presence of
flammable liquids, gases or dust. Power tools
create sparks which may ignite the dust orfumes.
c ) Keep children and bystanders away while
operating a power tool. Distractions can cause you
to losecontrol.
2) Electrical Safety
a ) Power tool plugs must match the outlet. Never
modify the plug in any way. Do not use any
adapter plugs with earthed (grounded) power
tools. Unmodified plugs and matching outlets will
reduce risk of electricshock.
b ) Avoid body contact with earthed or grounded
surfaces such as pipes, radiators, ranges and
refrigerators. There is an increased risk of electric
shock if your body is earthed orgrounded.
c ) Do not expose power tools to rain or wet
conditions. Water entering a power tool will increase
the risk of electricshock.
d ) Do not abuse the cord. Never use the cord for
carrying, pulling or unplugging the power tool.
Keep cord away from heat, oil, sharp edges or
moving parts. Damaged or entangled cords increase
the risk of electricshock.
e ) When operating a power tool outdoors, use an
extension cord suitable for outdoor use. Use of
a cord suitable for outdoor use reduces the risk of
electricshock.
f ) If operating a power tool in a damp location
is unavoidable, use a ground fault circuit
interrupter (GFCI) protected supply. Use of a GFCI
reduces the risk of electricshock.
3) Personal Safety
a ) Stay alert, watch what you are doing and use
common sense when operating a power tool. Do
not use a power tool while you are tired or under
the influence of drugs, alcohol or medication. A
moment of inattention while operating power tools
may result in serious personalinjury.
b ) Use personal protective equipment. Always wear
eye protection. Protective equipment such as dust
mask, non-skid safety shoes, hard hat, or hearing
protection used for appropriate conditions will reduce
personalinjuries.
c ) Prevent unintentional starting. Ensure the
switch is in the off position before connecting to
power source and/or battery pack, picking up or
carrying the tool. Carrying power tools with your
finger on the switch or energizing power tools that
have the switch on invitesaccidents.
d ) Remove any adjusting key or wrench before
turning the power tool on. A wrench or a key left
attached to a rotating part of the power tool may
result in personalinjury.
e ) Do not overreach. Keep proper footing and
balance at all times. This enables better control of
the power tool in unexpectedsituations.
f ) Dress properly. Do not wear loose clothing or
jewelry. Keep your hair, clothing and gloves
away from moving parts. Loose clothes, jewelry or
long hair can be caught in movingparts.
g ) If devices are provided for the connection of dust
extraction and collection facilities, ensure these
are connected and properly used. Use of dust
collection can reduce dust-relatedhazards.
h ) Do not let familiarity gained from frequent use
of tools allow you to become complacent and
ignore tool safety principles. A careless action can
cause severe injury within a fraction of asecond.
4) Power Tool Use and Care
a ) Do not force the power tool. Use the correct
power tool for your application. The correct power
tool will do the job better and safer at the rate for
which it wasdesigned.
b ) Do not use the power tool if the switch does not
turn it on and off. Any power tool that cannot be
controlled with the switch is dangerous and must
berepaired.
c ) Disconnect the plug from the power source and/
or remove the battery, pack if detachable, from
the power tool before making any adjustments,
changing accessories, or storing power tools.
Such preventive safety measures reduce the risk of
starting the power toolaccidentally.
d ) Store idle power tools out of the reach of children
and do not allow persons unfamiliar with the
power tool or these instructions to operate the
power tool. Power tools are dangerous in the hands
of untrainedusers.
e ) Maintain power tools and accesories. Check
for misalignment or binding of moving parts,
breakage of parts and any other condition
that may affect the power tool’s operation. If
damaged, have the power tool repaired before
use. Many accidents are caused by poorly maintained
powertools.
f ) Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting edges are
less likely to bind and are easier tocontrol.
g ) Use the power tool, accessories and tool bits, etc.
in accordance with these instructions, taking
into account the working conditions and the

ENGLISH
3
work to be performed. Use of the power tool for
operations different from those intended could result
in a hazardoussituation.
h ) Keep handles and grasping surfaces dry, clean
and free from oil and grease. Slippery handles and
grasping 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 (129 °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.
SAFETY INSTRUCTIONS FOR ALL OPERATIONS
Safety Warnings Common for Grinding,
Sanding, Wire Brushing, Polishing or
Abrasive Cutting-Off Operations
a ) This power tool is intended to function as a
grinder, sander, wire brush, polisher or cut-off
tool. Read all safety warnings, instructions,
illustrations and specifications provided with
this power tool. Failure to follow all instructions
listed below may result in electric shock, fire and/or
seriousinjury.
b ) Do not use accessories which are not specifically
designed and recommended by the tool
manufacturer. Just because the accessory can
be attached to your power tool, it does not assure
safeoperation.
c ) The rated speed of the accessory must be at least
equal to the maximum speed marked on the
power tool. Accessories running faster than their
rated speed can break and flyapart.
d ) The outside diameter and the thickness of your
accessory must be within the capacity rating of
your power tool. Incorrectly sized accessories cannot
be adequately guarded orcontrolled.
e ) Threaded mounting of accessories must match
the grinder spindle thread. For accessories
mounted by flanges, the arbor hole of the
accessory must fit the locating diameter of the
flange. Accessories that do not match the mounting
hardware of the power tool will run out of balance,
vibrate excessively and may cause loss ofcontrol.
f ) Do not use a damaged accessory. Before each
use inspect the accessory such as abrasive
wheels for chips and cracks, backing pad for
cracks, tear or excess wear, wire brush for loose
or cracked wires. If power tool or accessory
is dropped, inspect for damage or install an
undamaged accessory. After inspecting and
installing an accessory, position yourself and
bystanders away from the plane of the rotating
accessory and run the power tool at maximum
no-load speed for one minute. Damaged
accessories will normally break apart during this
testtime.
g ) Wear personal protective equipment. Depending
on application, use face shield, safety goggles or
safety glasses. As appropriate, wear dust mask,
hearing protectors, gloves and workshop apron
capable of stopping small abrasive or workpiece
fragments. The eye protection must be capable
of stopping flying debris generated by various
operations. The dust mask or respirator must
be capable of filtrating particles generated by
your operation. Prolonged exposure to high intensity
noise may cause hearingloss.
h ) Keep bystanders a safe distance away from work
area. Anyone entering the work area must wear
personal protective equipment. Fragments of
workpiece or of a broken accessory may fly away and
cause injury beyond immediate area ofoperation.
i ) Hold the power tool by insulated gripping
surfaces only, 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.

ENGLISH
4
j ) Never lay the power tool down until the
accessory has come to a complete stop. The
spinning accessory may grab the surface and pull the
power tool out of yourcontrol.
k ) Do not run the power tool while carrying it at
your side. Accidental contact with the spinning
accessory could snag your clothing, pulling the
accessory into yourbody.
l ) Regularly clean the power tool’s air vents. The
motor’s fan will draw the dust inside the housing and
excessive accumulation of powdered metal may cause
electricalhazards.
m ) Do not operate the power tool near flammable
materials. Sparks could ignite thesematerials.
n ) Do not use accessories that require liquid
coolants. Using water or other liquid coolants may
result in electrocution orshock.
o ) Do not use Type 11 (flaring cup) wheels on this
tool. Using inappropriate accessories can result
ininjury.
p ) Always use side handle. Tighten the handle
securely. The side handle should always be used to
maintain control of the tool at alltimes.
q ) When starting the tool with a new or
replacement wheel, or a new or replacement
wire brush installed, hold the tool in a well
protected area and let it run for one minute. If
the wheel has an undetected crack or flaw, it
should burst in less than one minute. If the wire
brush has loose wires, they will be detected.
Never start the tool with a person in line with the
wheel. This includes theoperator.
r ) Use of accessories not specified in this manual
is not recommended and may be hazardous.
Use of power boosters that would cause the tool
to be driven at speeds greater than its rated speed
constitutesmisuse.
s ) 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.
t ) Avoid bouncing the wheel or giving it rough
treatment. If this occurs, stop the tool and inspect the
wheel for cracks orflaws.
u ) Always handle and store wheels in a carefulmanner.
v ) Do not operate this tool for long periods of time.
Vibration caused by the operating action of this
tool may cause permanent injury to fingers,
hands, and arms. Use gloves to provide extra
cushion, take frequent rest periods, and limit daily
time ofuse.
w ) Air vents often cover moving parts and should be
avoided. Loose clothes, jewelry or long hair can be
caught in movingparts.
Kickback and Related Warnings
Kickback is a sudden reaction to a pinched or snagged
rotating wheel, backing pad, brush or any other accessory.
Pinching or snagging causes rapid stalling of the rotating
accessory which in turn causes the uncontrolled power tool to
be forced in the direction opposite of the accessory’s rotation
at the point of thebinding.
For example, if an abrasive wheel is snagged or pinched by
the workpiece, the edge of the wheel that is entering into the
pinch point can dig into the surface of the material causing
the wheel to climb out or kick out. The wheel may either jump
toward or away from the operator, depending on direction
of the wheel’s movement at the point of pinching. Abrasive
wheels may also break under theseconditions.
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:
a ) Maintain a firm grip on the power tool and
position your body and arm to allow you to resist
kickback forces. Always use auxiliary handle, if
provided, for maximum control over kickback or
torque reaction during start up. The operator can
control torque reaction or kickback forces, if proper
precautions aretaken.
b ) Never place your hand near the rotating
accessory. Accessory may kickback over yourhand.
c ) Do not position your body in the area where
power tool will move if kickback occurs. Kickback
will propel the tool in direction opposite to the wheel’s
movement at the point ofsnagging.
d ) Use special care when working corners, sharp
edges etc. Avoid bouncing and snagging the
accessory. Corners, sharp edges or bouncing have
a tendency to snag the rotating accessory and cause
loss of control orkickback.
e ) Do not attach a saw chain woodcarving blade
or toothed saw blade. Such blades create frequent
kickback and loss ofcontrol.
Safety Warnings Specific for Grinding and
Abrasive Cutting-Off Operations
a ) Use only wheel types that are recommended for
your power tool and the specific guard designed
for the selected wheel. Wheels for which the power
tool was not designed cannot be adequately guarded
and areunsafe.
b ) The grinding surface of center depressed
wheels must be mounted below the plane of
the guard lip. An improperly mounted wheel that
projects through the plane of the guard lip cannot be
adequatelyprotected.
c ) The guard must be securely attached to the
power tool and positioned for maximum safety,
so the least amount of wheel is exposed towards
the operator. The guard helps to protect the operator
from broken wheel fragments, accidental contact with
wheel and sparks that could igniteclothing.
d ) Wheels must be used only for recommended
applications. For example: do not grind with the
side of cut-off wheel. Abrasive cut-off wheels are
intended for peripheral grinding, side forces applied to
these wheels may cause them toshatter.

ENGLISH
5
e ) Always use undamaged wheel flanges that
are of correct size and shape for your selected
wheel. Proper wheel flanges support the wheel
thus reducing the possibility of wheel breakage.
Flanges for cut-off wheels may be different from
grinding wheelflanges.
f ) Do not use worn down wheels from larger power
tools. Wheel intended for larger power tool is not
suitable for the higher speed of a smaller tool and
mayburst.
Additional Safety Warnings Specific for
Abrasive Cutting-Off Operations
a ) Do not “jam” the cut-off wheel or apply excessive
pressure. Do not attempt to make an excessive
depth of cut. Overstressing the wheel increases the
loading and susceptibility to twisting or binding of
the wheel in the cut and the possibility of kickback or
wheelbreakage.
b ) Do not position your body in line with and
behind the rotating wheel. When the wheel, at the
point of operation, is moving away from your body,
the possible kickback may propel the spinning wheel
and the power tool directly atyou.
c ) When wheel is binding or when interrupting
a cut for any reason, switch off the power tool
and hold the power tool motionless until the
wheel comes to a complete stop. Never attempt
to remove the cut-off wheel from the cut while
the wheel is in motion otherwise kickback may
occur. Investigate and take corrective action to
eliminate the cause of wheelbinding.
d ) Do not restart the cutting operation in the
workpiece. Let the wheel reach full speed and
carefully reenter the cut. The wheel may bind,
walk up or kickback if the power tool is restarted in
theworkpiece.
e ) Support panels or any oversized workpiece
to minimize the risk of wheel pinching and
kickback. Large workpieces tend to sag under
their own weight. Supports must be placed under
the workpiece near the line of cut and near the edge of
the workpiece on both sides of thewheel.
f ) Use extra caution when making a “pocket
cut” into existing walls or other blind areas.
The protruding wheel may cut gas or water pipes,
electrical wiring or objects that can causekickback.
Safety Warnings Specific for Sanding
Operations
a ) Do not use excessively oversized sanding disc
paper. Follow manufacturers recommendations,
when selecting sanding paper. Larger sanding
paper extending beyond the sanding pad presents a
laceration hazard and may cause snagging, tearing of
the disc orkickback.
Safety Warnings Specific for Polishing
Operations
a ) Do not allow any loose portion of the polishing
bonnet or its attachment strings to spin freely.
Tuck away or trim any loose attachment strings.
Loose and spinning attachment strings can entangle
your fingers or snag on theworkpiece.
Safety Warnings Specific for Wire
Brushing Operations
a ) Be aware that wire bristles are thrown by the
brush even during ordinary operation. Do not
overstress the wires by applying excessive load
to the brush. The wire bristles can easily penetrate
light clothing and/orskin.
b ) If the use of a guard is recommended for wire
brushing, do not allow any interference of the
wire wheel or brush with the guard. Wire wheel
or brush may expand in diameter due to work and
centrifugalforces.
c ) Safety goggles or safety glasses with side shields
and a full face shield compliant with ANSI Z87.1
MUST be worn by the operator and others that
are within 50' (15.2 m) of the use of thisproduct.
Additional Safety Information
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.
• 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.

ENGLISH
6
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 S12.6 (S3.19)
during use. Under some conditions and duration
of use, noise from this product may contribute to
hearingloss.
CAUTION: To reduce the risk of personal injury,
use extra care when working into a corner or edge
because a sudden, sharp movement of the tool may
be experienced when the wheel or other accessory
contacts a secondary surface or a surfaceedge.
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
or AC........... alternating current
or AC/DC....alternating or
direct current
......................Class II
Construction
(double insulated)
no.......................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
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.
Your tool uses a
DeWALT
charger. Be sure to read all safety
instructions before using your charger. Consult the chart
at the end of this manual for compatibility of chargers and
batterypacks.
READ ALL INSTRUCTIONS
Important Safety Instructions for All
Battery Packs
WARNING: Read all safety warnings and all
instructions for the battery pack, charger and
power tool. 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 designated
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 104°F (40°C) (such as outside sheds or metal
buildings in summer). For best life store battery packs in
a cool, drylocation.
NOTE: Do not store the battery packs in a tool with
the trigger switch locked on. Never tape the trigger
switch in the ONposition.
• Do not incinerate the battery pack even if it is
severely damaged or is completely worn out. The
battery pack can explode in a fire. Toxic fumes and
materials are created when lithium ion battery packs
areburned.
• If battery contents come into contact with the skin,
immedicately wash area with mild soap and water.
If battery liquid gets into the eye, rinse water over the open
eye for 15 minutes or until irritation ceases. If medical
attention is needed, the battery electrolyte is composed of
a mixture of liquid organic carbonates and lithiumsalts.
• Contents of opened battery cells may cause
respiratory irritation. Provide fresh air. If symptoms
persist, seek medicalattention.
WARNING: Burn hazard. Battery liquid may be
flammable if exposed to spark orflame.
WARNING: Fire hazard. Never attempt to open the
battery pack for any reason. If the battery pack case
is cracked or damaged, do not insert into the charger.
Do not crush, drop or damage the 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 (e.g., pierced with a nail, hit with a hammer,
stepped on). Damaged battery packs should be
returned to the service center forrecycling.
Transportation
WARNING: Fire hazard. Do not store or carry the
battery pack so that metal objects can contact
exposed battery terminals. For example, do
not place the battery pack in aprons, pockets, tool
boxes, product kit boxes, drawers, etc., with loose
nails, screws, keys, etc. Transporting batteries
can possibly cause fires if the battery terminals
inadvertently come in contact with conductive
materials such as keys, coins, hand tools and the
like. The US Department of Transportation Hazardous
Material Regulations (HMR) actually prohibit

ENGLISH
7
transporting batteries in commerce or on airplanes in
carry-on baggage UNLESS they are properly protected
from short circuits. So when transporting individual
battery packs, make sure that the battery terminals
are protected and well insulated from materials that
could contact them and cause a shortcircuit.
NOTE:LI-ion batteries should not be put in
checkedbaggage.
Shipping the
DeWALT
FLEXVOLT™ Battery
The D
e
WALT FLEXVOLT™ battery has two modes: Use and
Shipping.
Use Mode: When the FLEXVOLT™ battery stands alone or is
in a D
e
WALT 20V Max* product, it will operate as a 20V Max*
battery. When the FLEXVOLT™ battery is in a 60V Max* or a
120V Max* (two 60V Max* batteries) product, it will operate
as a 60V Max* battery.
Shipping Mode: When
the cap is attached to the
FLEXVOLT™ battery, the
battery is in Shipping Mode.
Strings of cells are electrically
disconnected within the pack resulting in three batteries
with a lower Watt hour (Wh) rating as compared to one
battery with a higher Watt hour rating. This increased
quantity of three batteries with the lower Watt hour rating
can exempt the pack from certain shipping regulations that
are imposed upon the higher Watt hourbatteries.
The battery label indicates two Watt hour ratings (see
example). Depending on how the battery is shipped, the
appropriate Watt hour rating must be used to determine
the applicable shipping requirements. If utilizing the
shipping cap, the pack will be considered 3 batteries at
the Watt hour rating indicated for “Shipping”. If shipping
without the cap or in a tool, the pack will be considered one
battery at the Watt hour rating indicated next to “Use”.
USE: 120 Wh Shipping: 3 x 40 Wh
Example of Use and Shipping Label Marking
For example, Shipping Wh rating might indicate 3 x 40 Wh,
meaning 3 batteries of 40 Watt hours each. The Use Wh
rating might indicate 120 Wh (1 battery implied).
Fuel Gauge Battery Packs (Fig. B)
Some
DeWALT
battery packs include a fuel gauge which
consists of three green LED lights that indicate the level of
charge remaining in the batterypack.
The fuel gauge is an indication of approximate levels of
charge remaining in the battery pack according to the
followingindicators:
75–100% charged
51–74% charged
< 50% charged
Pack needs to be charged
To actuate the fuel gauge, press and hold the fuel gauge
button. A combination of the three green LED lights will
illuminate designating the level of charge left. When the
level of charge in the battery is below the usable limit, the
fuel gauge will not illuminate and the battery will need to
berecharged.
Fig. B
NOTE: The fuel gauge is only an indication of the charge left
on the battery pack. It does not indicate tool functionality
and is subject to variation based on product components,
temperature and end-userapplication.
For more information regarding fuel gauge battery packs,
please call 1-800-4-
DeWALT
(1-800-433-9258) or visit our
website www.dewalt.com.
The RBRC® Seal
The RBRC® (Rechargeable Battery
Recycling Corporation) Seal on the nickel
cadmium, nickel metal hydride or lithium-
ion batteries (or battery packs) indicates
that the costs to recycle these batteries
(or battery packs) at the end of their useful life have already
been paid by
DeWALT
. In some areas, it is illegal to place
spent nickel cadmium, nickel metal hydride or lithium-ion
batteries in the trash or municipal solid waste stream and
the Call2Recycle® program provides an environmentally
consciousalternative.
Call 2 Recycle, Inc., in cooperation with
DeWALT
and other
battery users, has established the program in the United
States and Canada to facilitate the collection of spent nickel
cadmium, nickel metal hydride or lithium-ion batteries. Help
protect our environment and conserve natural resources by
returning the spent nickel cadmium, nickel metal hydride
or lithium-ion batteries to an authorized
DeWALT
service
center or to your local retailer for recycling. You may also
contact your local recycling center for information on
where to drop off the spent battery. RBRC® is a registered
trademark of Call 2 Recycle,Inc.
Important Safety Instructions for All
Battery Chargers
WARNING: Read all safety warnings and all
instructions for the battery pack, charger and
power tool. Failure to follow the warnings and
instructions may result in electric shock, fire and/
or seriousinjury.
• DO NOT attempt to charge the battery pack with
any chargers other than the ones in this manual.
The charger and battery pack are specifically designed to
worktogether.
• These chargers are not intended for any uses other
than charging
DeWALT
rechargeable batteries.
Any other uses may result in risk of fire, electric shock
orelectrocution.
• Do not expose the charger to rain orsnow.

ENGLISH
8
• Pull by the plug rather than the cord when
disconnecting the charger. This will reduce the risk of
damage to the electric plug andcord.
• Make sure that the cord is located so that it will not
be stepped on, tripped over or otherwise subjected
to damage orstress.
• Do not use an extension cord unless it is absolutely
necessary. Use of improper extension cord could result in
risk of fire, electric shock orelectrocution.
• When operating a charger outdoors, always provide
a dry location and use an extension cord suitable
for outdoor use. Use of a cord suitable for outdoor use
reduces the risk of electricshock.
• An extension cord must have adequate wire size
(AWG or American Wire Gauge) for safety. The smaller
the gauge number of the wire, the greater the capacity
of the cable, that is, 16 gauge has more capacity than 18
gauge. An undersized cord will cause a drop in line voltage
resulting in loss of power and overheating. When using
more than one extension to make up the total length,
be sure each individual extension contains at least the
minimum wire size. The following table shows the correct
size to use depending on cord length and nameplate
ampere rating. If in doubt, use the next heavier gauge. The
lower the gauge number, the heavier thecord.
Minimum Gauge for Cord Sets
Volts Total Length of Cord in Feet
(meters)
120 V 25 (7.6) 50 (15.2) 100 (30.5) 150 (45.7)
240 V 50 (15.2) 100 (30.5) 200 (61.0) 300 (91.4)
Ampere Rating
American Wire Gauge
More
Than Not More
Than
0 6 18 16 16 14
610 18 16 14 12
10 12 16 16 14 12
12 16 14 12 Not Recommended
• Do not place any object on top of the charger or
place the charger on a soft surface that might block
the ventilation slots and result in excessive internal
heat. Place the charger in a position away from any heat
source. The charger is ventilated through slots in the top
and the bottom of thehousing.
• Do not operate the charger with a damaged cord
orplug.
• Do not operate the charger if it has received a sharp
blow, been dropped or otherwise damaged in any
way. Take it to an authorized servicecenter.
• Do not disassemble the charger; take it to an
authorized service center when service or repair
is required. Incorrect reassembly may result in a risk of
electric shock, electrocution orfire.
• Disconnect the charger from the outlet before
attempting any cleaning. This will reduce the risk of
electric shock. Removing the battery pack will not reduce
thisrisk.
• NEVER attempt to connect 2 chargerstogether.
• The charger is designed to operate on standard
120V household electrical power. Do not attempt to
use it on any other voltage. This does not apply to the
vehicularcharger.
WARNING: Shock hazard. Do not allow any liquid to
get inside the charger. Electric shock mayresult.
WARNING:Burn hazard. Do not submerge the
battery pack in any liquid or allow any liquid to
enter the battery pack. Never attempt to open the
battery pack for any reason. If the plastic housing of
the battery pack breaks or cracks, return to a service
center forrecycling.
CAUTION: Burn hazard. To reduce the risk of injury,
charge only
DeWALT
rechargeable battery packs.
Other types of batteries may overheat and burst
resulting in personal injury and propertydamage.
CAUTION: Under certain conditions, with the charger
plugged into the power supply, the charger can
be shorted by foreign material. Foreign materials
of a conductive nature, such as, but not limited to,
grinding dust, metal chips, steel wool, aluminum
foil or any buildup of metallic particles should be
kept away from the charger cavities. Always unplug
the charger from the power supply when there is no
battery pack in the cavity. Unplug the charger before
attempting toclean.
Charging a Battery (Fig. C)
1. Plug the charger into an appropriate outlet before
inserting batterypack.
Fig. C
11
10
2. Insert the battery pack 10 into the charger, making sure
the battery pack is fully seated in the charger. The red
(charging) light will blink continuously indicating that
the charging process hasstarted.
3. The completion of charge will be indicated by the red
light remaining ON continuously. The battery pack is
fully charged and may be used at this time or left in the
charger. To remove the battery pack from the charger,
push the battery release button 11 on the battery pack
and then slide the battery pack out of thecharger.
NOTE: To ensure maximum performance and life of lithium-
ion battery packs, charge the battery pack fully before
firstuse.

ENGLISH
9
Charger Operation
Refer to the indicators below for the charge status of the
batterypack.
DCB107, DCB112, DCB113, DCB115, DCB118, DCB132
Charging
Fully Charged
Hot/Cold Pack Delay*
*DCB107, DCB112, DCB113, DCB115, DCB118, DCB132:
The red light will continue to blink, but a yellow indicator
light will be illuminated during this operation. Once the
battery pack has reached an appropriate temperature, the
yellow light will turn off and the charger will resume the
chargingprocedure.
The compatible charger(s) will not charge a faulty battery
pack. The charger will indicate faulty battery pack by
refusing tolight.
NOTE: This could also mean a problem with acharger.
If the charger indicates a problem, take the charger and
battery pack to be tested at an authorized servicecenter.
Hot/Cold Pack Delay
When the charger detects a battery pack that is too hot
or too cold, it automatically starts a Hot/Cold Pack Delay,
suspending charging until the battery pack has reached an
appropriate temperature. The charger then automatically
switches to the pack charging mode. This feature ensures
maximum battery packlife.
A cold battery pack will charge at a slower rate than a warm
battery pack. The battery pack will charge at that slower rate
throughout the entire charging cycle and will not return to
maximum charge rate even if the battery packwarms.
The DCB118 charger is equipped with an internal fan
designed to cool the battery pack. The fan will turn on
automatically when the battery pack needs to becooled.
Never operate the charger if the fan does not operate
properly or if ventilation slots are blocked. Do not permit
foreign objects to enter the interior of thecharger.
Electronic Protection System
Li-Ion tools are designed with an Electronic Protection
System that will protect the battery pack against
overloading, overheating or deepdischarge.
The tool will automatically turn off if the Electronic
Protection System engages. If this occurs, place the lithium-
ion battery pack on the charger until it is fullycharged.
Wall Mounting
DCB107, DCB112, DCB113, DCB115, DCB118, DCB132
These chargers are designed to be wall mountable or to
sit upright on a table or work surface. If wall mounting,
locate the charger within reach of an electrical outlet,
and away from a corner or other obstructions which may
impede air flow. Use the back of the charger as a template
for the location of the mounting screws on the wall. Mount
the charger securely using drywall screws (purchased
separately) at least 1" (25.4 mm) long, with a screw head
diameter of 0.28–0.35" (7–9mm), screwed into wood to an
optimal depth leaving approximately 7/32" (5.5 mm) of the
screw exposed. Align the slots on the back of the charger
with the exposed screws and fully engage them in theslots.
Charger Cleaning Instructions
WARNING: Shock hazard. Disconnect the charger
from the AC outlet before cleaning. Dirt and grease
may be removed from the exterior of the charger using
a cloth or soft non-metallic brush. Do not use water or
any cleaningsolutions.
Important Charging Notes
1. Longest life and best performance can be obtained if
the battery pack is charged when the air temperature is
between 65°F and 75°F (18°– 24°C). DO NOT charge
the battery pack below +40°F (+4.5°C), or above
+104°F (+40°C). This is important and will prevent
serious damage to the batterypack.
2. The charger and battery pack may become warm to the
touch while charging. This is a normal condition, and
does not indicate a problem. To facilitate the cooling of
the battery pack after use, avoid placing the charger or
battery pack in a warm environment such as in a metal
shed or an uninsulatedtrailer.
3. If the battery pack does not charge properly:
a. Check operation of receptacle by plugging in a lamp
or other appliance;
b. Check to see if receptacle is connected to a light
switch which turns power off when you turn out the
lights;
c. Move the charger and battery pack to a location
where the surrounding air temperature is
approximately 65°F– 75°F (18°– 24°C);
d. If charging problems persist, take the tool, battery
pack and charger to your local servicecenter.
4. The battery pack should be recharged when it fails to
produce sufficient power on jobs which were easily
done previously. DO NOT CONTINUE to use under these
conditions. Follow the charging procedure. You may
also charge a partially used pack whenever you desire
with no adverse effect on the batterypack.
5. Foreign materials of a conductive nature such as, but
not limited to, grinding dust, metal chips, steel wool,
aluminum foil, or any buildup of metallic particles
should be kept away from charger cavities. Always
unplug the charger from the power supply when there
is no battery pack in the cavity. Unplug the charger
before attempting toclean.
6. Do not freeze or immerse the charger in water or any
otherliquid.
Storage Recommendations
1. The best storage place is one that is cool and dry, away
from direct sunlight and excess heat orcold.
2. For long storage, it is recommended to store a fully
charged battery pack in a cool dry place out of the
charger for optimalresults.

ENGLISH
10
NOTE: Battery packs should not be stored completely
depleted of charge. The battery pack will need to be
recharged beforeuse.
SAVE THESE INSTRUCTIONS FOR
FUTURE USE
COMPONENTS (FIG. A)
WARNING: Never modify the power tool or any part
of it. Damage or personal injury couldresult.
Refer to Figure A at the beginning of this manual for a
complete list ofcomponents.
Intended Use
Your heavy-duty small angle grinder has been designed
for professional grinding, sanding, wire brushing,
polishing, and cut-off applications at various work sites
(i.e.,constructionsites).
DO NOT use under wet conditions or in presence of
flammable liquids orgases.
Your heavy-duty small angle grinders is a professional
power tool. DO NOT let children come into contact with the
tool. Supervision is required when inexperienced operators
use thistool.
ASSEMBLY AND ADJUSTMENTS
WARNING: To reduce the risk of serious personal
injury, turn unit off and remove the battery pack
before making any adjustments or removing/
installing attachments or accessories. An
accidental start-up can causeinjury.
Attaching Side Handle (Fig. D)
WARNING: Before using the tool, check that the
handle is tightenedsecurely.
Screw the side handle5 tightly into one of the holes on
either side of the gear case. The side handle should always
be used to maintain control of the tool at alltimes.
Fig. D
5
Rotating the Gear Case (Fig. E)
To improve user comfort, the gear case will rotate 90° for
cuttingoperations.
1. Remove the four corner screws attaching the gear case
to motorhousing.
2. Without separating the gear case from motor housing,
rotate the gear case head to desiredposition.
90˚ 90˚
Fig. E
NOTE: If the gear case and motor housing become
separated by more than 1/8" (3.17 mm), the tool must be
serviced and re-assembled by a
DeWALT
service center.
Failure to have the tool serviced may cause motor and
bearingfailure.
3. Reinstall screws to attach the gear case to the
motor housing. Tighten screws to 20 in.-lbs. torque.
Overtightening could cause screws tostrip.
Guards
CAUTION: Guards must be used with all grinding
wheels, cutting wheels, sanding flap discs,
wire brushes, and wire wheels. The tool may
be used without a guard only when sanding with
conventional sanding discs. Refer to Figure A to see
guards provided with the unit. Some applications may
require purchasing the correct guard from your local
dealer or authorized servicecenter.
NOTE: Edge grinding and cutting can be performed with
Type 27 wheels designed and specified for this purpose;
1/4" (6.35 mm) thick wheels are designed for surface
grinding while thinner Type 27 wheels need to be examined
for the manufacturer's label to see if they can be used for
surface grinding or only edge grinding/cutting. A Type 1
guard must be used for any wheel where surface grinding
is forbidden. Cutting can also be performed by using a
Type41 wheel and a Type 1guard.
NOTE: See the Accessories Chart to select the proper
guard/accessorycombination.
Adjusting and Mounting Guard (Fig. F)
WARNING: To reduce the risk of serious personal
injury, turn tool off and disconnect battery pack
before making any adjustments or removing/
installing attachments or accessories. An
accidental start-up can causeinjury.
CAUTION: BEFORE operating the tool, identify which
guard adjustment option your tool is setto.
Adjustment Options
For guard adjustment, the guard release lever9 engages
one of the alignment holes14 on the guard collar using a
ratchetingfeature.
One-touchTM: In this position the engaging face is slanted
and will ride over to the next alignment hole when guard
is rotated in a clockwise direction (spindle facing user) but
self-locks in the counterclockwisedirection.

ENGLISH
11
Mounting Guard (Fig. F)
CAUTION: Prior to mounting guard, ensure the screw,
lever, and spring are fitted correctly before mounting
theguard.
1. With the spindle facing the operator, press and hold the
guard release lever9.
2. Align the lugs12 on the guard with the slots13 on
the gearcasecover.
3. Push the guard down until the guard lugs engage
and rotate them in the groove on the gear case cover.
Release the guard releaselever.
4. To position the guard, rotate the guard clockwise
into the desired working position. Press and hold
the guard release lever9 to rotate the guard in the
counterclockwisedirection.
NOTE: The guard body should be positioned between
the spindle and the operator to provide maximum
operatorprotection.
The guard release lever should snap into one of the
alignment holes14 on the guard collar. This ensures
that the guard issecure.
5. To remove the guard, follow steps 1–3 of these
instructions inreverse.
9
Fig. F
13
12
14
Flanges and Wheels
CAUTION: Turn unit off and unplug the tool before
making any adjustments or removing or installing
attachments oraccessories.
Mounting Non-Hubbed Wheels
(Fig. G, H)
WARNING: Failure to properly seat the flanges and/or
wheel could result in serious injury (or damage to the
tool orwheel).
CAUTION: Included flanges must be used with
depressed center Type 27/42 grinding wheels and
Type1/41 cutting wheels. See the Accessories Chart
for moreinformation.
WARNING: A closed, two-sided cutting wheel guard
is required when using abrasive cutting wheels or
diamond coated cuttingwheels.
WARNING: Use of a damaged flange or guard or
failure to use proper flange and guard can result in
injury due to wheel breakage and wheel contact. See
the Accessories Chart for moreinformation.
1. Place the tool on a table, guardup.
2. Install the backing flange6 on spindle4 with the
raised center (pilot) facing thewheel. Press the backing
flange intoplace.
3. Place wheel17 against the backing flange, centering the
wheel on the raised center (pilot) of the backingflange.
4. While depressing the spindle lock button and with the
hex depressions facing away from the wheel, thread the
locking flange7 on spindle so that the lugs engage the
two slots in thespindle.
NOTE: If the wheel you are installing is more than 1/8"
(3.17mm) thick, place the threaded locking flange on
the spindle so that the raised section (pilot) fits into the
center of the wheel. If the wheel you are installing is 1/8"
(3.17mm) thick or less, place the threaded locking flange
on the spindle so that the raised section (pilot) is not against
thewheel.
Fig. G
Over 1/8" (3.17mm)
wheels
Backing Flange
Locking flange
1/8" Or less (3.17mm)
wheels
Backing Flange
Locking flange
5. While depressing the spindle lock button, tighten
the locking flange7 by hand or using the wrench
19 supplied. (Only use a locking flange if it is in
perfect condition.) Refer to Accessories Chart to see
flangedetails.
6. To remove the wheel, reverse the aboveprocedure.
Fig. H 19
7
17
6
4
Mounting Sanding Backing Pads
(Fig. A, I)
NOTE: Use of a guard with sanding discs that use backing
pads, often called fiber resin discs, is not required. Since a
guard is not required for these accessories, the guard may or
may not fit correctly ifused.

ENGLISH
12
WARNING: Failure to properly seat the clamp nut
and/or pad could result in serious injury (or damage
to the tool orwheel).
WARNING: Proper guard must be reinstalled for
grinding wheel, cutting wheel, sanding flap disc,
wire brush or wire wheel applications after sanding
applications arecomplete.
1. Place or appropriately thread backing pad15 on
thespindle.
2. Place the sanding disc18 on the backing pad15.
3. While depressing spindle lock button3, thread the
sanding clamp nut16 on spindle, piloting the raised
hub on the clamp nut into the center of sanding disc
and backingpad.
4. Tighten the clamp nut by hand. Then depress the
spindle lock button while turning the sanding disc until
the sanding disc and clamp nut aresnug.
5. To remove the wheel, grasp and turn the backing
pad and sanding pad while depressing the spindle
lockbutton.
Fig. I
16
18
15
Mounting and Removing Hubbed
Wheels (Fig. A)
Hubbed wheels install directly on the spindle. Thread of
accessory must match thread ofspindle.
1. Remove backing flange by pulling away fromtool.
2. Thread the wheel on the spindle4 byhand.
3. Depress the spindle lock button3 and use a wrench to
tighten the hub of thewheel.
4. Reverse the above procedure to remove thewheel.
NOTICE: Failure to properly seat the wheel before
turning the tool on may result in damage to the tool
or thewheel.
Mounting Wire Cup Brushes and
Wire Wheels (Fig. A)
WARNING: Failure to properly seat the brush/wheel
could result in serious injury (or damage to the tool
orwheel).
CAUTION: To reduce the risk of personal injury,
wear work gloves when handling wire brushes
and wheels. They can becomesharp.
CAUTION: To reduce the risk of damage to the
tool, wheel or brush must not touch guard when
mounted or while in use. Undetectable damage
could occur to the accessory, causing wires to
fragment from accessory wheel orcup.
Wire cup brushes or wire wheels install directly on the
threaded spindle without the use of flanges. Use only wire
brushes or wheels provided with a threaded hub. These
accessories are available at extra cost from your local dealer
or authorised servicecenter.
1. Place the tool on a table, guardup.
2. Thread the wheel on the spindle byhand.
3. Depress spindle lock button3 and use a wrench on the
hub of the wire wheel or brush to tighten thewheel.
4. To remove the wheel, reverse the aboveprocedure.
NOTICE: To reduce the risk of damage to the tool,
properly seat the wheel hub before turning the toolon.
Prior to Operation
• Install the guard and appropriate disc or wheel. Do not
use excessively worn discs orwheels.
• Be sure the backing flange and locking flange are
mounted correctly. Follow the instructions given in the
Accessories Chart.
• Make sure the disc or wheel rotates in the direction of
the arrows on the accessory and thetool.
• Do not use a damaged accessory. Before each use
inspect the accessory such as abrasive wheels for chips
and cracks, backing pad for cracks, tear or excess wear,
wire brush for loose or cracked wires. If power tool or
accessory is dropped, inspect for damage or install an
undamaged accessory. After inspecting and installing
an accessory, position yourself and bystanders away
from the plane of the rotating accessory and run the
power tool at maximum no-load speed for one minute.
Damaged accessories will normally break apart during
this testtime.
OPERATION
WARNING: To reduce the risk of serious personal
injury, turn unit off and remove the battery pack
before making any adjustments or removing/
installing attachments or accessories. An
accidental start-up can causeinjury.
Installing and Removing the Battery Pack
(Fig. J)
NOTE: For best results, make sure your battery pack is
fullycharged.
To install the battery pack 10 into the tool handle, align the
battery pack with the rails inside the tool’s handle and slide
it into the handle until the battery pack is firmly seated in
the tool and ensure that it does notdisengage.
To remove the battery pack from the tool, press the release
button 11 and firmly pull the battery pack out of the tool
handle. Insert it into the charger as described in the charger
section of thismanual.

ENGLISH
13
Fig. J
10
11
Proper Hand Position (Fig. K)
WARNING: To reduce the risk of serious personal injury,
ALWAYS use proper hand position as shown.
WARNING: To reduce the risk of serious personal
injury, ALWAYS hold securely in anticipation of a
suddenreaction.
Proper hand position requires one hand on the side
handle5, with the other hand on the body of the tool, as
shown in FigureK.
Fig. K
5
Lock-Off Button and Trigger Switch
(Fig. A)
CAUTION: Hold the side handle and body of the tool
firmly to maintain control of the tool at start up and
during use and until the wheel or accessory stops
rotating. Make sure the wheel has come to a complete
stop before laying the tooldown.
CAUTION: Before inserting the battery, depress and
release the trigger switch1 once to ensure that
the switch is off. Depress and release the switch as
described below after any interruption in power
supply to the tool, such as motor overload, pinch,
stall or bind-up event, or any other unexpected
toolshutdown.
NOTE: To reduce unexpected tool movement, do not
switch the tool on or off while under load conditions. Allow
the grinder to run up to full speed before touching the work
surface. Lift the tool from the surface before turning the tool
off. Allow the tool to stop rotating before putting itdown.
To lock the trigger switch 1, press the lock-off button 2.
When the lock-off button is depressed to the lock icon, the
unit islocked.
Always lock the trigger switch when carrying or storing the
tool to eliminate unintentionalstarting.
To unlock the trigger switch, press the lock-off button.
When the lock-off button is depressed to the unlock icon,
the unit is unlocked. The lock-off button is colored red to
indicate when the switch is in its unlockedposition.
Pull the trigger switch 1 to turn the motor ON. Releasing
the trigger switch turns the motorOFF.
NOTE: This tool has no provision to lock the switch in
the ON position, and should never be locked ON by any
othermeans.
Spindle Lock Button (Fig. L)
The spindle lock button3 is provided to prevent the
spindle from rotating when installing or removing wheels.
Operate the spindle lock only when the tool is turned off,
when the battery has been removed, and has come to a
completestop.
NOTICE: To reduce the risk of damage to the tool, do
not engage the spindle lock while the tool is operating.
Damage to the tool will result and attached accessory
may spin off possibly resulting ininjury.
To engage the lock, depress the spindle lock button 3
and rotate the spindle until you are unable to rotate the
spindlefurther.
3
Fig. L
Surface Grinding, Sanding and Wire
Brushing (Fig. M)
CAUTION:Always use the correct guard per the
instructions in thismanual.
To perform work on the surface of a workpiece:
1. Allow the tool to reach full speed before touching the
tool to the worksurface.
2. Apply minimum pressure to the work surface, allowing
the tool to operate at high speed. Material removal rate
is greatest when the tool operates at highspeed.
Fig. M

ENGLISH
14
3. Maintain an appropriate angle between the tool
and work surface. Refer to the chart according to
particularfunction.
Function Angle
Grinding 20˚-30˚
Sanding with Flap Disc 5˚-10˚
Sanding with Backing Pad 5˚-15˚
Wire Brushing 5˚-10˚
4. Maintain contact between the edge of the wheel and
the worksurface.
-If grinding, sanding with flap discs or wire brushing
move the tool continuously in a forward and
back motion to avoid creating gouges in the
worksurface.
-If sanding with a backing pad, move the tool
constantly in a straight line to prevent burning and
swirling of worksurface.
NOTE: Allowing the tool to rest on the work surface without
moving will damage the workpiece.
5. Remove the tool from work surface before turning tool
off. Allow the tool to stop rotating before laying itdown.
CAUTION: Use extra care when working over an
edge, as a sudden sharp movement of grinder may
beexperienced.
Precautions To Take When Working on
a Painted Workpiece
1. Sanding or wire brushing of lead based paint is NOT
RECOMMENDED due to the difficulty of controlling
the contaminated dust. The greatest danger of lead
poisoning is to children and pregnantwomen.
2. Since it is difficult to identify whether or not a paint
contains lead without a chemical analysis, we
recommend the following precautions when sanding
any paint:
Personal Safety
1. No children or pregnant women should enter the work
area where the paint sanding or wire brushing is being
done until all clean up iscompleted.
2. A dust mask or respirator should be worn by all persons
entering the work area. The filter should be replaced
daily or whenever the wearer has difficultybreathing.
NOTE: Only those dust masks suitable for working
with lead paint dust and fumes should be used.
Ordinary painting masks do not offer this protection.
See your local hardware dealer for the proper NIOSH-
approvedmask.
3. NO EATING, DRINKING or SMOKING should be done in
the work area to prevent ingesting contaminated paint
particles. Workers should wash and clean up BEFORE
eating, drinking or smoking. Articles of food, drink, or
smoking should not be left in the work area where dust
would settle onthem.
Environmental Safety
1. Paint should be removed in such a manner as to
minimize the amount of dustgenerated.
2. Areas where paint removal is occurring should be sealed
with plastic sheeting of 4 milsthickness.
3. Sanding should be done in a manner to reduce tracking
of paint dust outside the workarea.
Cleaning and Disposal
1. All surfaces in the work area should be vacuumed
and thoroughly cleaned daily for the duration of
the sanding project. Vacuum filter bags should be
changedfrequently.
2. Plastic drop cloths should be gathered up and disposed
of along with any dust chips or other removal debris.
They should be placed in sealed refuse receptacles and
disposed of through regular trash pick-upprocedures.
During clean up, children and pregnant women should
be kept away from the immediate workarea.
3. All toys, washable furniture and utensils used by
children should be washed thoroughly before being
usedagain.
Edge Grinding and Cutting (Fig. N)
WARNING: Do not use edge grinding/cutting wheels
for surface grinding applications because these wheels
are not designed for side pressures encountered
with surface grinding. Wheel breakage and injury
mayresult.
CAUTION:Wheels used for edge grinding and cutting
may break or kick back if they bend or twist while
the tool is being used. In all edge grinding/cutting
operations, the open side of the guard must be
positioned away from theoperator.
NOTICE: Edge grinding/cutting with a Type27 wheel
must be limited to shallow cutting and notching—
less than 13mm in depth when the wheel is new.
Reduce the depth of cutting/notching equal to the
reduction of the wheel radius as it wears down. Refer
to the Accessories Chart for more information. Edge
grinding/cutting with a Type 41 wheel requires usage
of a Type 1guard.
1. Allow the tool to reach full speed before touching the
tool to the worksurface.
2. Apply minimum pressure to the work surface, allowing
the tool to operate at high speed. Grinding/cutting rate
is greatest when the tool operates at highspeed.
3. Position yourself so that the open-underside of the
wheel is facing away fromyou.
4. Once a cut is begun and a notch is established in
the workpiece, do not change the angle of the cut.
Changing the angle will cause the wheel to bend and
may cause wheel breakage. Edge grinding wheels
are not designed to withstand side pressures caused
bybending.
Fig. N

ENGLISH
15
5. Remove the tool from the work surface before turning
the tool off. Allow the tool to stop rotating before laying
itdown.
MAINTENANCE
WARNING: To reduce the risk of serious personal
injury, turn unit off and remove the battery pack
before making any adjustments or removing/
installing attachments or accessories. An
accidental start-up can causeinjury.
Cleaning
WARNING: Blow dirt and dust out of all air vents with
clean, dry air at least once a week. To minimize the risk
of eye injury, always wear ANSI Z87.1 approved eye
protection when performingthis procedure.
WARNING: Never use solvents or other harsh
chemicals for cleaning the non-metallic parts of
the tool. These chemicals may weaken the plastic
materials used in these parts. Use a dry cloth. Never let
any liquid get inside the tool; never immerse any part
of the tool into aliquid.
Accessories
WARNING: Since accessories, other than those
offered by
DeWALT
, have not been tested with this
product, use of such accessories with this tool could be
hazardous. To reduce the risk of injury, only
DeWALT
recommended accessories should be used with
thisproduct.
Recommended accessories for use with your tool
are available at extra cost from your local dealer or
authorized service center. If you need assistance in
locating any accessory, please contact
DeWALT
Industrial
Tool Co., 701East Joppa Road, Towson, MD 21286, call
1-800-4-
DeWALT
(1-800-433-9258) or visit our website:
www.dewalt.com.
Repairs
The charger and battery pack are notserviceable.
WARNING: To assure product SAFETY and
RELIABILITY, repairs, maintenance and adjustment
(including brush inspection and replacement, when
applicable) should be performed by a
DeWALT
factory
service center or a
DeWALT
authorized service center.
Always use identical replacementparts.
Register Online
Thank you for your purchase. Register your product nowfor:
• WARRANTY SERVICE: Registering your product will
help you obtain more efficient warranty service in case
there is a problem with yourproduct.
• CONFIRMATION OF OWNERSHIP: In case of
an insurance loss, such as fire, flood or theft, your
registration of ownership will serve as your proof
ofpurchase.
• FOR YOUR SAFETY: Registering your product will
allow us to contact you in the unlikely event a safety
notification is required under the Federal Consumer
SafetyAct.
Register online at www.dewalt.com/register.
Three Year Limited Warranty
DeWALT
will repair, without charge, any defects due to
faulty materials or workmanship for three years from
the date of purchase. This warranty does not cover part
failure due to normal wear or tool abuse. For further detail
of warranty coverage and warranty repair information,
visit www.dewalt.com or call 1-800-4-
DeWALT
(1-800-
433-9258). This warranty does not apply to accessories
or damage caused where repairs have been made
or attempted by others. THIS LIMITED WARRANTY IS
GIVEN IN LIEU OF ALL OTHERS, INCLUDING THE IMPLIED
WARRANTY OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE, AND EXCLUDES ALL INCIDENTAL
OR CONSEQUENTIAL DAMAGES. Some states do not allow
limitations on how long an implied warranty lasts or the
exclusion or limitation of incidental or consequential
damages, so these limitations may not apply to you. This
warranty gives you specific legal rights and you may have
other rights which vary in certain states orprovinces.
In addition to the warranty,
DeWALT
tools are covered
byour:
1 YEAR FREE SERVICE
DeWALT
will maintain the tool and replace worn parts
caused by normal use, for free, any time during the first year
afterpurchase.
2 YEARS FREE SERVICE ON DEWALT BATTERY PACKS
DC9071, DC9091, DC9096, DC9182, DC9280, DC9360, DCB120,
DCB127, DCB201, DCB203BT, DCB207, DCB361
3 YEARS FREE SERVICE ON DEWALT BATTERY PACKS
DCB200, DCB203, DCB204, DCB204BT, DCB205, DCB205BT,
DCB206, DCB230, DCB606, DCB609
NOTE: Battery warranty voided if the battery pack is
tampered with in any way.
DeWALT
is not responsible
for any injury caused by tampering and may prosecute
warranty fraud to the fullest extent permitted bylaw.
90 DAY MONEY BACK GUARANTEE
If you are not completely satisfied with the performance of
your
DeWALT
Power Tool, Laser, or Nailer for any reason, you
can return it within 90 days from the date of purchase with
a receipt for a full refund – no questionsasked.
LATIN AMERICA: This warranty does not apply to products
sold in Latin America. For products sold in Latin America,
see country specific warranty information contained in
the packaging, call the local company or see website for
warrantyinformation.
FREE WARNING LABEL REPLACEMENT: If your warning
labels become illegible or are missing, call 1-800-4-
DeWALT
(1-800-433-9258) for a freereplacement.

ENGLISH
16
4.5" (115 mm) Grinding Wheels
Type 27 guard
unthreaded backing flange
Type 27
depressed center wheel
threaded locking flange
Type 27 guard
Type 27 hubbed wheel
4.5" (115 mm) Sanding Flap Discs
Type 27 guard
unthreaded backing flange
non-hubbed sanding flap disc
threaded locking flange
Type 27 guard
hubbed sanding flap disc
4.5" (115 mm) Cutting Wheels
Type 1/41 guard**
unthreaded backing flange
Type 27/42 depressed
center wheel, cutting only
threaded locking flange
Type 1/41 guard**
unthreaded backing flange
Type 1/41 abrasive
cutting wheel
threaded locking flange
Type 1/41 guard**
unthreaded backing flange
diamond cutting wheel
threaded locking flange
Wire Wheels
Type 27 guard
3–4" (76.2–100 mm)
wire cup brush
Type 27 guard
4" (100 mm)
wire wheel
Sanding Discs
rubber backing pad
sanding disc
clamp nut
ACCESSORIES CHART
Type 1/41 guards are intended for use with Type 1/41 cutting wheels and Type 27 wheels marked for cutting only.
Grinding with wheels other than Type 27 and Type 29 require different accessory guards. Always use the smallest proper
guard possible that does not contact theaccessory.
** NOTE: A Type 1/41 guard is available at extra cost from your local dealer or authorized servicecenter.

FRANÇAIS
17
Définitions : symboles et termes d'alarmes sécurité
Ces guides d'utilisation utilisent les symboles et termes d'alarmes sécurité suivants pour vous prévenir de situations
dangereuses et de risques de dommages corporels ou matériels.
DANGER: indique une situation dangereuse imminente qui, si elle n’est pas évitée, entraînera la mort ou des
blessuresgraves.
AVERTISSEMENT: indique une situation potentiellement dangereuse qui, si elle n’est pas évitée, pourrait entraîner la
mort ou des blessuresgraves.
ATTENTION: indique une situation potentiellement dangereuse qui, si elle n’est pas évitée, pourrait entraîner des
blessures légères oumodérées.
(Si utilisé sans aucun terme) Indique un message propre à la sécurité.
AVIS : indique une pratique ne posant aucun risque de dommages corporels mais qui par contre, si rien n’est fait
pour l’éviter, pourrait poser des risques de dommages matériels.
AVERTISSEMENT : lire tous les avertissements
de sécurité et toutes les directives. Le non-respect
des avertissements et des directives pourrait se
solder par un choc électrique, un incendie et/ou une
blessuregrave.
AVERTISSEMENT : afin de réduire le risque de
blessures, lire le mode d’emploi del’outil.
Pour toute question ou remarque au sujet de cet outil
ou de tout autre outil
DeWALT
, composez le numéro
sans frais : 1-800-4-
DeWALT
(1-800-433-9258).
1 Gâchette
2 Bouton de verrouillage
3 Bouton de verrouillage de la tige
4 Tige
5 Poignée latérale
6 Bride tournante non filetée
7 Bride de verrouillage filetée
8 Protecteur de type 27 (4,5 po/115 mm)
9 Levier de libération du protecteur
10 Bloc-piles
11 Bouton de libération du bloc-piles
Français (traduction de la notice d’instructions originale)
Fig. A
5
4
6
7
8
2 13
9
11
10

FRANÇAIS
18
AVERTISSEMENTS DE SÉCURITÉ GÉNÉRAUX
POUR LES OUTILS ÉLECTRIQUES
AVERTISSEMENT! lire tous les avertissements de
sécurité et toutes les directives. Le non-respect
des avertissements et des directives pourrait se
solder par un choc électrique, un incendie et/ou une
blessuregrave.
CONSERVER TOUS LES
AVERTISSEMENTS ET TOUTES
LES DIRECTIVES POUR UN USAGE
ULTÉRIEUR
Le terme « outil électrique » cité dans les avertissements se
rapporte à votre outil électrique à alimentation sur secteur
(avec fil) ou par piles (sans fil).
1) Sécurité du lieu de travail
a ) Tenir l’aire de travail propre et bien éclairée.
Les lieux encombrés ou sombres sont propices
auxaccidents.
b ) Ne pas faire fonctionner d’outils électriques
dans un milieu déflagrant, tel qu’en présence de
liquides, de gaz ou de poussières inflammables.
Les outils électriques produisent des étincelles qui
pourraient enflammer la poussière ou lesvapeurs.
c ) Éloigner les enfants et les personnes à proximité
pendant l’utilisation d’un outil électrique.
Une distraction pourrait en faire perdre la maîtrise
àl’utilisateur.
2) Sécurité en matière d’électricité
a ) Les fiches des outils électriques doivent
correspondre à la prise. Ne jamais modifier la
fiche d’aucune façon. Ne jamais utiliser de fiche
d’adaptation avec un outil électrique mis à la
terre. Le risque de choc électrique sera réduit par
l’utilisation de fiches non modifiées correspondant à
laprise.
b ) Éviter tout contact physique avec des surfaces
mises à la terre comme des tuyaux, des
radiateurs, des cuisinières et des réfrigérateurs.
Le risque de choc électrique est plus élevé si votre corps
est mis à laterre.
c ) Ne pas exposer les outils électriques à la pluie ou
à l’humidité. La pénétration de l’eau dans un outil
électrique augmente le risque de chocélectrique.
d ) Ne pas utiliser le cordon de façon abusive.
Ne jamais utiliser le cordon pour transporter,
tirer ou débrancher un outil électrique. Tenir le
cordon éloigné de la chaleur, de l’huile, des bords
tranchants et des pièces mobiles. Les cordons
endommagés ou enchevêtrés augmentent les risques
de chocélectrique.
e ) Pour l’utilisation d’un outil électrique à
l’extérieur, se servir d’une rallonge convenant à
cette application. L’utilisation d’une rallonge conçue
pour l’extérieur réduira les risques de chocélectrique.
f ) S’il est impossible d’éviter l’utilisation d’un
outil électrique dans un endroit humide,
brancher l’outil dans une prise ou sur un circuit
d’alimentation dotés d’un disjoncteur de fuite à
la terre (GFCI). L’utilisation de ce type de disjoncteur
réduit les risques de chocélectrique.
3) Sécurité personnelle
a ) Être vigilant, surveiller le travail effectué et faire
preuve de jugement lorsqu’un outil électrique
est utilisé. Ne pas utiliser d’outil électrique en
cas de fatigue ou sous l’influence de drogues,
d’alcool ou de médicaments. Un simple moment
d’inattention en utilisant un outil électrique peut
entraîner des blessures corporellesgraves.
b ) Utiliser des équipements de protection
individuelle. Toujours porter une protection
oculaire. L’utilisation d’équipements de protection
comme un masque antipoussière, des chaussures
antidérapantes, un casque de sécurité ou des
protecteurs auditifs lorsque la situation le requiert
réduira les risques de blessurescorporelles.
c ) Empêcher les démarrages intempestifs. S’assurer
que l’interrupteur se trouve à la position
d’arrêt avant de relier l’outil à une source
d’alimentation et/ou d’insérer un bloc-piles, de
ramasser ou de transporter l’outil. Transporter
un outil électrique alors que le doigt repose sur
l’interrupteur ou brancher un outil électrique dont
l’interrupteur est à la position de marche risque de
provoquer unaccident.
d ) Retirer toute clé de réglage ou clé avant de
démarrer l’outil. Une clé ou une clé de réglage
attachée à une partie pivotante de l’outil électrique
peut provoquer des blessurescorporelles.
e ) Ne pas trop tendre les bras. Conserver
son équilibre en tout temps. Cela permet
de mieux maîtriser l’outil électrique dans les
situationsimprévues.
f ) S’habiller de manière appropriée. Ne pas porter
de vêtements amples ni de bijoux. Garder les
cheveux, les vêtements et les gants à l’écart des
pièces mobiles. Les vêtements amples, les bijoux ou
les cheveux longs risquent de rester coincés dans les
piècesmobiles.
g ) Si des composants sont fournis pour le
raccordement de dispositifs de dépoussiérage
et de ramassage, s’assurer que ceux-ci sont bien
raccordés et utilisés. L’utilisation d’un dispositif de
dépoussiérage peut réduire les dangers engendrés par
lespoussières.
h ) Ne pas laisser votre connaissance acquise suite
l’utilisation fréquente des outils vous permettre
de baisser la garde et ignorer les principes de
sécurité de l’outil. Un acte irréfléchi peut causer une
blessure grave en une fraction deseconde.
4) Utilisation et entretien d’un
outil électrique
a ) Ne pas forcer un outil électrique. Utiliser l’outil
électrique approprié à l’application. L’outil
électrique approprié effectuera un meilleur travail,
de façon plus sûre et à la vitesse pour laquelle il a
étéconçu.