DeWalt DCH243 User manual

DCH243, DCH253
Heavy-Duty 20V Max* Cordless Rotary Hammer
Perceuse à percussion haute résistance sans fil 20 V max*
Rotomartillo inalámbrico de 20 V Máx* para trabajo pesado
INSTRUCTION MANUAL
GUIDE D'UTILISATION
MANUAL DE INSTRUCCIONES
INSTRUCTIVO DE OPERACIÓN, CENTROS DE SERVICIO Y PÓLIZA DE
GARANTÍA. ADVERTENCIA: LÉASE ESTE INSTRUCTIVO ANTES DE
USAR EL PRODUCTO.
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 • www.dewalt.com

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English
Definitions: Safety Guidelines
The definitions below describe the level of severity for each
signal word. Please read the manual and pay attention to these
symbols.
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.
NOTICE: Indicates a practice not related to personal injury
which, if not avoided, may result in property damage.
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).
WARNING: To reduce the risk of injury, read the instruction
manual.
General Power Tool Safety Warnings
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.
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.

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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 the
battery pack 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. 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 work to be performed.
Use of the power tool for operations different from those
intended could result in a hazardous situation.
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.
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.
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.

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• 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.
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.
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.
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 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.

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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.
WARNING: ALWAYS use eye protection. All users and
bystanders must wear eye protection that conforms to ANSI Z87.1.
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 sym-
bols 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) speed
…/min .......... per minute
n ......................rated speed
BPM ............. beats per minute .....................earthing
IPM...............impacts per minute terminal
RPM ............. revolutions per .....................safety alert
minute symbol
sfpm ............. surface feet per minute
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.
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.

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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.
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 transporting batteries in
commerce or on airplanes (e.g., packed in suitcases and carry-on
luggage) 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.
SPECIFIC SAFETY INSTRUCTIONS FOR LITHIUM ION (Li-Ion)
• 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,
immediately 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.
Important Safety Instructions for All
Battery Packs
When ordering replacement battery packs, be sure to include the
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 and
then follow charging procedures outlined.
READ ALL INSTRUCTIONS
•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 105°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.
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

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NOTICE: 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.
•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.
• 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
The RBRC™ Seal
The RBRC™ (Rechargeable Battery Recycling
Corporation) Seal on the nickel cadmium, nickel metal
hydride or lithium ion batteries (or battery packs) indicate
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 RBRC™
program provides an environmentally conscious alternative.
RBRC™, in cooperation with DEWALT and other battery users, has
established programs 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 the Rechargeable Battery
Recycling Corporation.
Important Safety Instructions for All
Battery Chargers
SAVE THESE INSTRUCTIONS: This manual contains important
safety and operating instructions for battery chargers.
• Before using the charger, read all instructions and cautionary
markings on the charger, battery pack and product using the
battery pack.
WARNING: Shock hazard. Do not allow any liquid to get inside the
charger. Electric shock may result.
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.

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• 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.
Chargers
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.
Charging Procedure (Fig. 1) FIG. 1
G
1. Plug the charger into an appropriate outlet
before inserting the battery pack.
2. Insert the battery pack (G) into the charger,
as shown in Figure 1, making sure the pack
is fully seated in 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 pack is fully charged and may be used
at this time or left in the charger.
Indicator Light Operation
PACK CHARGING
PACK CHARGED
x
HOT/COLD DELAY
PROBLEM PACK OR CHARGER
PROBLEM POWERLINE
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
Ampere Rating
Volts Total Length of Cord in Feet (meters)
120V 25 (7.6) 50 (15.2) 100 (30.5) 150 (45.7)
240V 50 (15.2) 100 (30.5) 200 (61.0) 300 (91.4)
More
Than
Not More
Than AWG
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.

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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 in an air
temperature below +40 °F (+4.5 °C), or above +105 °F (+40.5 °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. A cold battery pack will charge at about half the rate of 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.
4. 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.
5. 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.
Charge Indicators
This charger is designed to detect certain problems that can arise.
Problems are indicated by the red light flashing at a fast rate. If this
occurs, re-insert the battery pack into the charger. If the problem
persists, try a different battery pack to determine if the charger is
working properly. If the new pack charges correctly, then the original
pack is defective and should be returned to a service center or other
collection site for recycling. If the new battery pack elicits the same
trouble indication as the original, have the charger and the battery pack
tested at an authorized service center.
HOT/COLD DELAY
This charger has a hot/cold delay feature: when the charger detects a
battery that is hot, it automatically starts a delay, suspending charging
until the battery has cooled. After the battery has cooled, the charger
automatically switches to the pack charging mode. This feature
ensures maximum battery life. The red light flashes long, then short
while in the hot/cold delay mode.
LEAVING THE BATTERY PACK IN THE CHARGER
The charger and battery pack can be left connected with the charge
indicator showing pack charged.
WEAK BATTERY PACKS: Weak batteries will continue to function
but should not be expected to perform as much work.
FAULTY BATTERY PACKS: This charger will not charge a faulty
battery pack. The charger will indicate faulty battery pack by refusing
to light or by displaying problem pack or charger.
NOTE: This could also mean a problem with a charger.
PROBLEM POWER LINE
Some chargers have a Problem Power Line indicator. When the
charger is used with some portable power sources such as generators
or sources that convert DC to AC, the charger may temporarily
suspend operation, flashing the red light with two fast blinks followed
by a pause. This indicates the power source is out of limits.

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FIG. 2 A
B
D
C
E
FG
H
Side Handle (Fig. 2)
WARNING: To reduce the risk of personal injury, ALWAYS operate
the tool with the side handle (A) properly installed. Failure to do so may
result in the side handle slipping during tool operation and subsequent
loss of control. Hold tool with both hands to maximize control.
The side handle (A) clamps to the front barrel (collar) and may be
rotated 360° to permit right-or left-hand use. The side handle can
be tightened by rotating the black plastic portion of the side handle
clockwise. The side handle must be tightened sufficiently to resist the
twisting action of the tool if the accessory binds or stalls. Be sure to
grip the side handle at the far end to control the tool during a stall. To
loosen side handle, rotate counterclockwise.
6. 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.
7. Do not freeze or immerse the charger in water or any other liquid.
WARNING: Shock hazard. Don’t 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.
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.
NOTE: Battery packs should not be stored completely depleted of
charge. The battery pack will need to be recharged before use.
COMPONENTS (Fig. 2)
WARNING: Never modify the power tool or any part of it. Damage
or personal injury could result.
A. Side handle
B. Trigger switch
C. Forward/reverse control
button (Lock-off button)
D. Mode selector
E. Main handle
F. Worklight (DCH253 only)
G. Battery pack
H. Battery release button
SAVE THESE INSTRUCTIONS
FOR FUTURE USE

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The center position of the control button locks the tool in the
off position. When changing the position of the control button, be
sure the trigger is released.
NOTE: The first time the tool is run after changing the direction of
rotation, you may hear a click on start up. This is normal and does not
indicate a problem.
FIG. 4
C
LOCKED UNLOCKED,
REVERSE
UNLOCKED,
FORWARD
Worklight (Fig. 5) (DCH253 only)
There is a worklight (F) located on the front FIG. 5
F
of the tool. The worklight is activated
when the trigger switch is depressed, and
will automatically turn off 20 seconds after
the trigger switch is released. If the trigger
switch remains depressed, the worklight
will remain on.
NOTE: The worklight is for lighting the
immediate work surface and is not
intended to be used as a flashlight.
Trigger Switch (Fig. 2)
To turn the tool on, squeeze the trigger switch (B). To turn the tool
off, release the trigger switch. Your tool is equipped with a brake. The
chuck will stop as soon as the trigger switch is fully released.
VARIABLE SPEED TRIGGER SWITCH
The variable speed trigger switch enables you to select the best speed
for a particular application. The farther you squeeze the trigger switch,
the faster the tool will operate. For maximum tool life, use variable
speed only for starting holes or fasteners.
NOTE: Continuous use in variable speed range is not recommended.
It may damage the trigger switch and should be avoided.
Mode Selector (Fig. 3)
CAUTION: Never change the mode while
FIG. 3
D
I
J
K
the unit is running.
For straight drilling, rotate the mode
selector (D) until the arrow points to the drill
bit symbol (I). For rotary hammer mode,
align the arrow with the rotary hammer
symbol (J). For chipping mode, align arrow
with the chipping symbol (K).
NOTE: The mode selector (D) must be in drill, hammer or chipping
mode at all times. There are no operable positions in between.
Forward/Reverse Control Button (Fig. 2, 4)
A forward/reverse control button (C) determines the direction of bit
rotation and also serves as a lock-off button.
To select forward rotation, release the trigger switch (B) and
depress the forward/reverse control button on the right side of the tool.
To select reverse, depress the forward/reverse control button on the
left side of the tool.

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NOTE: Operating temperature of this tool is 19° to 104°F (-7 ° to
+40°C). Using the tool outside of this temperature range will decrease
the life of the tool.
FUEL GAUGE BATTERY PACKS (FIG. 7)
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.
To actuate the fuel gauge, press and hold the fuel gauge button (N).
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.
N
FIG. 7
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.
OPERATION
WARNING: To reduce the risk of serious personal injury,
turn tool off and disconnect tool from power source before
making any adjustments or removing/installing attachments or
accessories. An accidental start-up can cause injury.
Installing and Removing the Battery Pack
(Fig. 6)
WARNING: To reduce the risk of injury, never depress the battery
release button without removing the battery pack. Depressing the
battery release button without removing the battery pack can result
in the battery pack falling out unexpectedly.
NOTE: For best results, make sure your battery pack is fully charged.
To install the battery pack (G) 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.
G
FIG. 6
H
To remove the battery pack from the tool, press the release button (H)
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.

12
English
4. Hold tool firmly with both hands to control the twisting action of
the drill. If model is not equipped with side handle, grip drill with one
hand on the handle and one hand on the battery pack.
WARNING: Drill may stall if overloaded causing a sudden twist.
Always expect the stall. Grip the drill firmly to control the twisting
action and avoid injury.
5. IF DRILL STALLS, it is usually because it is being overloaded or
improperly used. RELEASE TRIGGER IMMEDIATELY, remove
drill bit from work, and determine cause of stalling. DO NOT
DEPRESS TRIGGER ON AND OFF IN AN ATTEMPT TO
START A STALLED DRILL — THIS CAN DAMAGE THE
DRILL.
6. To minimize stalling or breaking through the material, reduce
pressure on drill and ease the bit through the last fractional part of
the hole.
7 . Keep the motor running when pulling the bit back out of a drilled
hole. This will help prevent jamming.
8 . With variable speed drills there is no need to center punch
the point to be drilled. Use a slow speed to start the hole and
accelerate by squeezing the trigger harder when the hole is deep
enough to drill without the bit skipping out.
DRILLING IN METAL
An SDS Plus®to round shank adaptor chuck is required. Ensure that
tool is in drill-only mode. Start drilling with slow speed and increase to
full power while applying firm pressure on the tool. A smooth even flow
of metal chips indicates the proper drilling rate. Use a cutting lubricant
when drilling metals. The exceptions are cast iron and brass which
should be drilled dry.
NOTE: Large (5/16" to 1/2" [7.9 mm to 12.7 mm]) holes in steel can
be made easier if a pilot hole (5/32" to 3/16" [4 mm to 4.8 mm]) is
drilled first.
Shocks – Active Vibration Control (Fig. 2)
For best vibration control, hold the tool with one hand on the main
handle (E) and the other hand on the side handle (A). Apply just enough
pressure so the hammer is approximately mid-stroke. The hammer only
needs enough pressure to engage the internal active vibration control.
Applying too much pressure will not make the tool drill faster and active
vibration control will not engage.
SDS Chuck (Fig. 8)
To insert bit, insert shank of bit about
FIG. 8
M
L
3/4" (19 mm) into chuck (L). Push and
rotate bit until it locks in place. The bit
will be securely held.
To release bit, pull the sleeve (M) back
and remove the bit.
Drilling (Fig. 3)
WARNING: To reduce the risk of personal injury, ALWAYS operate
the tool with the side handle properly installed. Failure to do so may
result in the side handle slipping during tool operation and subsequent
loss of control. Hold tool with both hands to maximize control.
NOTICE: If drilling thin material, use a wood “back-up” block to
prevent damage to the material.
1. Turn the mode selector (D) to the drill symbol (I).
2. Use sharp drill bits only. For WOOD, use twist bits, spade bits,
power auger bits or hole saws. For METAL, use high-speed steel
twist drill bits or hole saws. Use a cutting lubricant when drilling
metals. The exceptions are cast iron and brass which should be
drilled dry. For MASONRY, such as brick, cement, cinder block,
etc., use carbide-tipped bits rated for percussion drilling.
3. Always apply pressure in a straight line with the bit. Use enough
pressure to keep drill biting, but do not push hard enough to stall
the motor or deflect the bit.

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English
Chipping and Chiselling (Fig. 3)
WARNING: To reduce the risk of serious personal injury,
turn tool off and disconnect tool from power source before
making any adjustments or removing/installing attachments or
accessories. An accidental start-up can cause injury.
1. Set the mode selector switch (D) to the chipping symbol (K).
2. Insert the appropriate chisel and rotate it by hand to lock it into one
of 51 positions.
3. Adjust the side handle (A) as required.
4. Switch on the tool and start working.
5. Always switch off the tool when work is finished and before
unplugging.
MAINTENANCE
WARNING: To reduce the risk of serious personal injury, turn
tool off and disconnect tool from power source 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.
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 cloth
dampened only with water and mild soap. Never let any liquid get
inside the tool; never immerse any part of the tool into a liquid.
DRILLING IN WOOD
An SDS Plus®to round shank adaptor chuck is required. Ensure that
tool is in drill-only mode. Start drilling with slow speed and increase
to full power while applying firm pressure on the tool. Holes in wood
can be made with the same twist drills used for metal. These bits may
overheat unless pulled out frequently to clear chips from the flutes. For
larger holes, use spade bits, power auger bits, or hole saws. Work that
is apt to splinter should be backed up with a block of wood.
DRILLING IN MASONRY
When drilling in masonry, use carbide-tipped bits rated for percussion
drilling and be certain that the bits are sharp. Use a constant and firm
force on the tool to drill most effectively. A smooth, even flow of dust
indicates the proper drilling rate.
HAMMERDRILL OPERATION (FIG. 3)
1. Turn the mode selector (D) to the rotary hammer symbol (J).
2. When drilling, use just enough force on the hammer to keep it from
bouncing excessively or “rising” off the bit. Too much force will
cause slower drilling speeds, overheating, and a lower drilling rate.
3. Drill straight, keeping the bit at a right angle to the work. Do not
exert side pressure on the bit when drilling as this will cause
clogging of the bit flutes and a slower drilling speed.
4. When drilling deep holes, if the hammer speed starts to drop off,
pull the bit partially out of the hole with the tool still running to help
clear debris from the hole.
5. For masonry, use carbide-tipped bits or masonry bits. A smooth
even flow of dust indicates the proper drilling rate.

14
English
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.
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, Baltimore, MD
21286, call 1-800-4-DEWALT (1-800-433-9258) or visit our website:
www.dewalt.com.
MAXIMUM RECOMMENDED CAPACITIES
Spindle speed 0–1,200 min-1
Hammering speed 0–4,500 min-1
Bits, Masonry Drilling 7/8" (22.2 mm)
Repairs
The charger and battery pack are not serviceable. There are no
serviceable parts inside the charger or battery pack.
To assure product SAFETY and RELIABILITY, repairs, maintenance
and adjustments (including brush inspection and replacement) should
be performed by a DEWALT factory service center, a DEWALT
authorized service center or other qualified service personnel. 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 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.

15
English
2 YEARS FREE SERVICE ON DEWALT BATTERY PACKS
DC9071, DC9091, DC9096, DC9280, DC9360, DC9180, DCB120,
DCB201 and DCB203
3 YEARS FREE SERVICE ON DEWALT BATTERY PACKS
DCB200, DCB204
DEWALT BATTERY PACKS
Product 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.

Français
16
Définitions: lignes directrices en
matière de sécurité
Les définitions ci-dessous décrivent le niveau de danger pour
chaque mot-indicateur employé. Lire le mode d’emploi et porter
une attention particulière à ces symboles.
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.
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.
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).
AVERTISSEMENT : afin de réduire le risque de blessures, lire
le mode d’emploi de l’outil.
Avertissements de sécurité généraux pour
les outils électriques
AVERTISSEMENT! Lire toutes les directives et toutes les
consignes de sécurité. 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.

Français
17
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.
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.
b) Ne pas utiliser un outil électrique dont l’interrupteur
est défectueux. Tout outil électrique dont l’interrupteur est
défectueux est dangereux et doit être réparé.
c) Débrancher la fiche de la source d’alimentation et/ou du
bloc-piles de l’outil électrique avant de faire tout réglage
ou changement d’accessoire ou avant de ranger l’outil.
Ces mesures préventives réduisent les risques de démarrage
accidentel de l’outil 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

Français
18
entre les deux bornes. Le court-circuit des bornes du bloc-
piles risque de provoquer des brûlures ou un incendie.
d) En cas d’utilisation abusive, le liquide peut gicler hors
du bloc-piles; éviter tout contact avec ce liquide. Si un
contact accidentel se produit, laver à grande eau. Si le
liquide entre en contact avec les yeux, obtenir également
des soins médicaux. Le liquide qui gicle hors du bloc-piles
peut provoquer des irritations ou des brûlures.
6) RÉPARATION
a) Faire réparer l’outil électrique par un réparateur
professionnel en n’utilisant que des pièces de rechange
identiques. Cela permettra de maintenir une utilisation
sécuritaire de l’outil électrique.
Directives de sécurité supplémentaires
pour les perceuses à percussion
• Porter des protecteurs d’oreilles. Une exposition au bruit peut
entraîner une perte auditive.
• Utiliser la/les poignée(s) auxiliaire(s) si fournie(s) avec l’outil.
Une perte de contrôle de l’outil pourrait occasionner des dommages
corporels.
•Tenir l’outil électrique par les surfaces isolées prévues à cet
effet pendant toute utilisation où l’organe de coupe pourrait
entrer en contact avec des fils électriques cachés. Tout
contact de l’organe de coupe avec un fil sous tension mettra les
parties métalliques exposées de l’outil sous tension et électrocutera
l’utilisateur.
• S’assurer que le matériau percé ne cache pas de conduite
électrique ou de gaz et que leur emplacement a été vérifié
avec les entreprises de services publiques.
• Utilisez des serres de fixation ou un autre dispositif de
fixation permettant de soutenir et de retenir la pièce sur
une plate-forme stable. Tenir la pièce avec la main ou contre son
d) Ranger les outils électriques hors de la portée des
enfants et ne permettre à aucune personne n’étant pas
familière avec un outil électrique ou son mode d’emploi
d’utiliser cet outil. Les outils électriques deviennent dangereux
entre les mains d’utilisateurs inexpérimentés.
e) Entretien des outils électriques. Vérifier si les pièces
mobiles sont mal alignées ou coincées, si des pièces sont
brisées ou présentent toute autre condition susceptible
de nuire au bon fonctionnement de l’outil électrique. En
cas de dommage, faire réparer l’outil électrique avant
toute nouvelle utilisation. Beaucoup d’accidents sont causés
par des outils électriques mal entretenus.
f) S’assurer que les outils de coupe sont aiguisés et
propres. Les outils de coupe bien entretenus et affûtés
sont moins susceptibles de se coincer et sont plus faciles à
maîtriser.
g) Utiliser l’outil électrique, les accessoires, les forets,
etc. conformément aux présentes directives en tenant
compte des conditions de travail et du travail à effectuer.
L’utilisation d’un outil électrique pour toute opération autre que
celle pour laquelle il a été conçu est dangereuse.
5) UTILISATION ET ENTRETIEN DU BLOC-PILES
a) Ne recharger l’outil qu’au moyen du chargeur précisé par
le fabricant. L’utilisation d’un chargeur qui convient à un type
de bloc-piles risque de provoquer un incendie s’il est utilisé avec
un autre type de b loc-piles.
b) Utiliser les outils électriques uniquement avec les blocs-
piles conçus à cet effet. L’utilisation de tout autre bloc-piles
risque de causer des blessures ou un incendie.
c) Lorsque le bloc-piles n’est pas utilisé, le tenir éloigné
des objets métalliques, notamment des trombones, de
la monnaie, des clés, des clous, des vis ou autres petits
objets métalliques qui peuvent établir une connexion