DeWalt DCD998 User manual

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Instruction Manual
Guide D’utilisation
Manual de instrucciones
DCD998
20V Max.* Drill/Driver/Hammerdrill
Perceuses/visseuses/perceuses à percussion 20 V max.*
Taladro/Destornillador/Rotomartillo 20 V Máx.*
final page size: 8.5 x 5.5 in
Fig. A
12
3
4
5
7
8
6
9
10
1 Bloc-piles
2 Bouton de libération du bloc-piles
3 Gâchette de vitesse variable
4 Bouton de commande Avancer/Reculer
5 Bague de réglage de couple
6 Changement de vitesse
7 Lampe de travail
8 Douille du mandrin
9 Mandrin sans clé
10 Poignée latérale
11 Crochet de ceinture
1 Paquete de batería
2 Botón de liberación de batería
3 Gatillo de velocidad variable
4 Botón de control de avance/reversa
5 Collarín de ajuste del par de torsión
6 Cambiador de velocidades
7 Luz de trabajo
8 Camisa de mandril
9 Mandril sin llave
10 Empuñadura lateral
11 Gancho para cinturón
1 Battery pack
2 Battery release button
3 Variable speed trigger
4 Forward/reverse control button
5 Torque adjustment collar
6 Gear shifter
7 Worklight
8 Chuck sleeve
9 Keyless chuck
10 Side handle
11 Belt hook
11

English (original instructions) 4
Français (traduction de la notice d’instructions originale) 10
Español (traducido de las instrucciones originales) 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.
Definiciones: Símbolos y
Palabras de Alerta de Seguridad
Este manual de instrucciones utiliza
los siguientes símbolos y palabras de
alerta de seguridad para alertarle de
situaciones peligrosas y del riesgo de
lesiones corporales o daños materiales.
PELIGRO: Indica una situación
de peligro inminente que, si no
se evita, provocará la muerte o
lesionesgraves.
ADVERTENCIA: Indica una
situación de peligro potencial que, si no
se evita, podría provocar la muerte o
lesionesgraves.
ATENCIÓN:Indica una situación
de peligro potencial que, si no se evita,
posiblemente provocaría lesiones
leves omoderadas.
(Utilizado sin palabras) indica un
mensaje de seguridad relacionado.
AVISO: Se refiere a una práctica no
relacionada a lesiones corporales
que de no evitarse puede resultar en
daños a lapropiedad.
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.
AVERTISSEMENT: lire tous les
avertissements de sécurité, les
instructions, les illustrations
et les caractéristiques de ce
manuel, y compris les sections
sur les piles et les chargeurs fournies
dans un manuel d’origine de l’outil
ou dans le manuel séparé sur les
piles et les chargeurs. Les manuels
peuvent être obtenus en contactant le
service à la clientèle comme indiqué
ailleurs dans ce manuel. Le fait de ne pas
suivre les avertissements et les
instructions peut entraîner un choc
électrique, un incendie et/ou des
blessures graves.
ADVERTENCIA: Lea todas las
advertencias de seguridad,
instrucciones, ilustraciones y
especificaciones de este
manual, incluyendo las
secciones sobre la batería y el
cargador proporcionadas en un
manual original de la herramienta o
en el manual de Baterías y
Cargadores por separado. Los
manuales se pueden obtener poniéndose
en contacto con el Servicio de atención
al cliente como se describe en otra parte
de este manual. La falla en seguir las
advertencias e instrucciones puede
resultar en descarga eléctrica, incendio
y/o lesiones serias.
WARNING: Read all safety
warnings, instructions,
illustrations, and
specifications in this manual,
including the battery and
charger sections provided in an
original tool manual or the separate
Batteries and Chargers manual.
Manuals can be obtained by contacting
Customer Service as described elsewhere
in this manual. Failure to follow the
warnings and instructions may result in
electric shock, fire and/or serious injury.

Fig. C Fig. D
Fig. B
5
6
5
6
12
13
14 15
7
8
17
16
1
2
Fig. E Fig. F
Fig. G Fig. H Fig. I
Fig. J
10
18
Fig. K

ENGLISH
4
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
English (original instructions)
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 accessories. 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.
Intended Use
These drills/drivers/hammerdrills are designed
for professional drilling, percussion drilling and
screwdrivingapplications.
DO NOT use under wet conditions or in presence of
flammable liquids orgases.
These drills/drivers/hammerdrills are professional
powertools.
DO NOT let children come into contact with the tool.
Supervision is required when inexperienced operators use
thistool.

ENGLISH
5
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 (130°C) may causeexplosion.
g ) Follow all charging instructions and do not charge
the battery pack or tool outside the temperature range
specified in the instructions. Charging improperly or at
temperatures outside the specified range may damage the
battery and increase the risk of fire.
6) Service
a ) Have your power tool serviced by a qualified repair
person using only identical replacement parts. This will
ensure that the safety of the power tool is maintained.
b ) Never service damaged battery packs. Service of
battery packs should only be performed by the manufacturer
or authorized service providers.
Safety Instructions for All Operations
• Hold the power tool by insulated gripping surfaces
when performing an operation where the cutting
accessory or fasteners may contact hidden wiring.
Cutting accessory or fasteners contacting a “live” wire may
make exposed metal parts of the power tool “live” and could
give the operator an electricshock.
Safety Instructions When Using Long DrillBits
• Never operate at higher speed than the maximum
speed rating of the drill bit. At higher speeds, the bit is likely
to bend if allowed to rotate freely without contacting the
workpiece, resulting in personal injury.
• Always start drilling at low speed and with the bit tip
in contact with the workpiece. At higher speeds, the bit is
likely to bend if allowed to rotate freely without contacting the
workpiece, resulting in personal injury.
• Apply pressure only in direct line with the bit and
do not apply excessive pressure. Bits can bend causing
breakage or loss of control, resulting in personal injury.
Additional Safety Warnings for Drills
• Wear ear protectors when impact drilling. Exposure to
noise can cause hearing loss.
• Always use the side handle supplied with the tool.
Keep a firm grip on the tool at all times. Do not attempt
to operate this tool without holding it with both hands.
Operating this tool with one hand will result in loss of control.
Breaking through or encountering hard materials such as
re-bar may be hazardous as well.
• 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.
• Wear safety goggles or other eye protection.
Hammering and drilling operations cause chips to fly.
Flying particles can cause permanent eye damage.
• Do not operate this tool for long periods of time.
Vibration caused by tool action may be harmful to your
hands and arms. Use gloves to provide extra cushion and
limit exposure by taking frequent rest periods.
• Drill bits may get hot during operation. Wear gloves
when touching them.
WARNING: Shock hazard. When drilling or driving
into walls, floors or wherever live electrical wires may be
encountered, DO NOT TOUCH ANY METAL PARTS OF THE
TOOL! Hold the tool only by the plastic handle(s) / housing to
prevent shock.
• Hold drill firmly with both hands to control the
twisting action of the drill.
WARNING: Drill may stall (if overloaded or improperly
used) causing a twist. Always expect the stall. Grip the drill
firmly to control the twisting action and prevent loss of
control which could cause personal injury. If a stall does occur,
release the trigger immediately and determine the reason for
the stall before re-starting.
• Always remove the battery pack when attaching or
removing accessories. When attaching accessories in the
drill chuck, it is important to securely tighten the chuck using
all three holes to prevent slippage. When using a keyless
chuck, hand tighten firmly.
Additional Safety Information
WARNING: Never modify the power tool or any part of it.
Damage or personal injury couldresult.
WARNING: ALWAYS use safety glasses. Everyday
eyeglasses are NOT safety glasses. Also use face or dust
mask if cutting operation is dusty. ALWAYS WEAR CERTIFIED
SAFETYEQUIPMENT:
• ANSI Z87.1 eye protection (CAN/CSA Z94.3),
• ANSI S12.6 (S3.19) hearing protection,
• NIOSH/OSHA/MSHA respiratoryprotection.
WARNING: Some dust created by power sanding,
sawing, grinding, drilling, and other construction activities
contains chemicals known to the State of California to cause
cancer, birth defects or other reproductive harm. Some
examples of these chemicalsare:
• lead from lead-based paints,

ENGLISH
6
• 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.
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: 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.
• Air vents often cover moving parts and should be
avoided. Loose clothes, jewelry or long hair can be caught in
movingparts.
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
Variable Speed Trigger Switch (Fig.A)
To turn the tool on, squeeze the trigger switch3. 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.
NOTE: Continuous use in variable speed range is not
recommended. It may damage the switch and should
be avoided.
Side Handle (Fig.A)
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.
Side handle10 clamps to the front of the gear case and
may be rotated 360° to permit right- or left-hand use. 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.
Forward/Reverse Control Button (Fig.A)
A forward/reverse control button4 determines the
direction of the tool and also serves as a lock-off button.
To select forward rotation, release the trigger switch and
depress the forward/reverse control button on the right side
of the tool.
To select reverse, release the trigger switch and depress the
forward/reverse control button on the left side of the tool.
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.
Torque Adjustment Collar (Fig.B–D)
Your tool has an electronic adjustable torque screwdriver
system for driving and removing a wide array of fasteners.
Circling the torque adjustment collar5 are numbers, a drill
bit symbol, and in some models, a hammer symbol. These
numbers are used to set the tool to deliver a torque range.
The higher the number on the collar, the higher the torque
and the larger the fastener that can be driven. To select any
of the numbers, rotate until the desired number aligns with
the arrow.
WARNING: When the torque adjustment collar is in the
drill or hammerdrill positions, the drill will not clutch. The drill
may stall if overloaded, causing a sudden twist.
Three-Speed Gearing (Fig.B–D)
The three-speed feature of your tool allows you to shift
gears for greater versatility. To select speed 1 (highest
torque setting), turn the tool off and permit it to stop. Slide
the gear shifter6 all the way forward. Speed 2 (middle
torque and speed setting) is in the middle position. Speed 3
(highest speed setting) is to the rear.
NOTE: Do not change gears when the tool is running.
Always allow the drill to come to a complete stop before
changing gears. If you have trouble changing gears, depress
and release the trigger switch and try again.
Worklight (Fig.E)
The worklight7 and its switch12 are located on the
foot of the tool. The worklight is activated when the
trigger switch is depressed. The low13, medium14
and spotlight15 modes can be changed by moving the
switch on the foot of the tool. If the trigger switch remains
depressed, the worklight will remain on in all modes.
When on low and medium settings, the beam will
automatically turn off 20 seconds after the trigger switch
isreleased.

ENGLISH
7
Spotlight Mode
The high setting is the spotlight mode15. The spotlight
will run for 20 minutes after the trigger switch is released.
Two minutes before the spotlight will shut off, it will flash
twice and then dim. To avoid the spotlight shutting off,
lightly tap the trigger switch.
WARNING: While using the worklight in medium or
spotlight mode, do not stare at the light or place the
drill in a position which may cause anyone to stare into
the light. Serious eye injury could result.
CAUTION: When using the tool as a spotlight, be sure it is
secured on a stable surface where it will not cause a tripping
or falling hazard.
CAUTION: Remove all accessories from the chuck before
using the drill as a spotlight. Personal injury or property
damage could result.
Low Battery Warning
When in spotlight mode and the battery is nearing
complete discharge, the spotlight will flash twice and then
dim. After two minutes, the battery will be completely
discharged and the drill will immediately shut down. At this
point, replace with a fresh battery.
WARNING:To reduce the risk of injury, always have
a back-up battery or secondary lighting available if the
situation warrants it.
Keyless Single Sleeve Chuck (Fig.F–H)
WARNING: Do not attempt to tighten drill bits (or any
other accessory) by gripping the front part of the chuck and
turning the tool on. Damage to the chuck and personal injury
may result. Always lock off trigger switch and disconnect tool
from power source when changing accessories.
WARNING: Always ensure the bit is secure before starting
the tool. A loose bit may eject from tool causing possible
personal injury.
Your tool features a keyless chuck with one rotating sleeve
for one-handed operation of the chuck. To insert a drill bit or
other accessory, follow these steps.
1. Turn tool off and disconnect tool from power source.
2. Grasp the black sleeve of the chuck8 with one hand
and use the other hand to secure the tool as shown in
FigureG. Rotate the sleeve counterclockwise (as viewed
from the front) far enough to accept the desiredaccessory.
3. Insert the accessory about 3/4" (19 mm) into the chuck
and tighten securely by rotating the chuck sleeve clockwise
with one hand while holding the tool with the other hand.
Continue to rotate the chuck sleeve until several ratchet
clicks are heard to ensure full grippingpower.
Be sure to tighten chuck with one hand on the chuck sleeve
and one hand holding the tool for maximum tightness.
To release the accessory, repeat Steps 1 and 2 above.
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.
Belt Hook
Bit Clip (Optional Accessory) (Fig. A,I)
WARNING:To reduce the risk of serious personal
injury, ONLY use the tool's belt hook to hang the tool
from a work belt. DO NOT use the belt hook for tethering
or securing the tool to a person or object during use. DO NOT
suspend tool overhead or suspend objects from the belt hook.
WARNING:To reduce the risk of serious personal
injury, ensure the screw holding the belt hook is secure.
CAUTION: To reduce the risk of personal injury or
damage, DO NOT use the belt hook to hang the drill
while using as a spotlight.
NOTE: Bit clip and belt hook cannot be used with the
lanyard-ready attachment kit installed.
IMPORTANT: When attaching or replacing the belt
hook11 or bit clip16, use only the screw17 that is
provided. Be sure to securely tighten the screw.
The belt hook and bit clip can be attached to either side of
the tool using only the screw provided, to accommodate
left- or right-handed users. If the hook or bit clip is not
desired at all, it can be removed from the tool.
To move belt hook or bit clip, remove the screw that holds
it in place then reassemble on the opposite side. Be sure to
securely tighten the screw.
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 1 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 2 and firmly pull the battery pack out of the tool
handle. Insert it into the charger.
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 main
handle 18, with the other hand on the side handle10.
Screwdriving (Fig.D)
1. Select the desired speed/torque range using the gear
shifter6 to match the speed and torque to the
planned operation.
2. Turn the torque adjustment collar5 to the desired
position.
NOTE: Use the lowest torque setting required to seat the
fastener at the desired depth. The lower the number, the
lower the torque output.
3. Insert the desired fastener accessory into the chuck as
you would any drill bit.
4. Make some practice runs in scrap or on unseen areas
of the workpiece to determine the proper position of the
torque adjustment collar.
5. Always start with lower torque settings, then advance to
higher torque settings to avoid damage to the workpiece
or fastener.
NOTE: When torque is achieved in screwdriving mode, the
unit will automatically shut off with a set of short pulses.

ENGLISH
8
Drilling (Fig.C)
NOTICE: If drilling thin material, use a wood “back-up” block
to prevent damage to the material.
1. Select the desired speed/torque range using the gear
shifter6 to match the speed and torque to the planned
operation. Turn the collar5 to the drill symbol.
2. Use sharp drill bits only. 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.
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.
Drill Settings RPM
Speed 1 450
Speed 2 1300
Speed 3 2000
Hammerdrilling (Fig.D)
1. Select the desired speed/torque range using the gear
shifter6 to match the speed and torque to the planned
operation. Turn the collar5 to the hammerdrill symbol.
IMPORTANT: Use carbide-tipped or masonry bits rated for
percussion drilling only.
2. Drill with 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 drillling
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 tool still
running to help clear debris from the hole.
NOTE: A smooth, even flow of dust from the hole indicates
proper drilling rate.
Hammerdrilling
Settings
RPM BPM
Speed 1 500 8500
Speed 2 1500 25500
Speed 3 2250 38250
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.
Your DeWALT power tool has been designed to operate
over a long period of time with a minimum of maintenance.
Continuous satisfactory operation depends upon proper
tool care and regular cleaning.
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 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.
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.
MAXIMUM RECOMMENDED CAPACITIES
DCD998
WOOD
Auger 1–1/4" (32 mm)
Paddle 1–1/2" (38 mm)
Twist 1/2" (13 mm)
Self-feed 2–9/16" (65 mm)
Hole saw 4" (100 mm)
METAL
Twist 1/2" (13 mm)
Hole saw 1–3/8" (35 mm)
MASONRY
Carbide 1/2" (13 mm)

ENGLISH
9
Three-Year Limited Warranty
For warranty terms, go to
www.dewalt.com/support/warranty.
To request a written copy of the warranty terms, contact:
Customer Service at DeWALT Industrial Tool Co., 701East
Joppa Road, Towson, MD 21286or call 1-800-4-DeWALT
(1-800-433-9258).
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.
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/account-login.
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.