DeWalt DW980 User manual

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ABvERTENGA:
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MANUAL
DE
INSTRUCCIONES
DEWALT
DW980/DW983/DW987
Heavy
Duty
XRP
1/2"
(13mm)
Cordless
Drill/Driver
DW981/DW982/DW984/DW985/DW988/DW989
Heavy
Duty
XRP
1/2"
(13mm)
Cordless
Drill
Driver
Hammerdrills
DW978
Heavy
Duty
XRP
1/4"
(6.35mm)
Cordless
Drill/Driver
DW980
/
DW983
/
DW987
Perceuse-tournevis
sans
fil
XRP+*
de
service
intensif
de
13
mm
(1/2
po)
Dw981
/
DW982
/
DW984
/
DW985
/
DW988
/
DW989
Perceuse-tournevis
sans
fil
XRP+*
de
service
intensif
de
13
mm
(1/2
po)
Marteaux
perforateurs
DW978
Perceuse-tournevis
sans
fil
XRP+*
de
service
intensif
de
6,35
mm
(1/4
po)
DW980/DW983/DW987
para
trabajo
pesado
XRP
1/2"
(13mm)
Taladro/Destornillador
inalambrico
DW981/DW982/DW984/DW985/DW988/DW989
para
trabajo
pesado
XRP
1/2"
(13mm)
Taladro/Destornillador
inalambrico
Martillos
perforadores
DW978
para
trabajo
pesado
XRP
1/4"
(6.35mm)
Taladro/Destornillador
inalambrico

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)
General Safety Rules - For All Battery
Operated Tools
A\ WARNING! Read and understand all instructions. Failure to
follow all instructions listed below may result in electric shock, fire
and/or serious personal injury.
SAVE THESE INSTRUCTIONS
WORK AREA
¢ Keep your work area clean and well lit. Cluttered benches and
dark areas invite accidents.
¢ 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.
¢ Keep bystanders, children, and visitors away while operating
a power tool. Distractions can cause you to lose control.
ELECTRICAL SAFETY
¢ Do not abuse the cord. Never use the cord to carry the tool.
Keep cord away from heat, oil, sharp edges or moving parts.
Replace damaged cords immediately. Damaged cords may
create a fire.
¢ A battery operated tool with integral batteries or a separate
battery pack must be recharged only with the specified
charger for the battery. A charger that may be suitable for one
type of battery may create a risk of fire when used with another
battery.
¢ Use battery operated tool only with the specifically
designated battery pack. Use of any other batteries may create a
risk of fire.
PEBSONAL SAFETY
Stay alert, watch what you are doing and use common sense
when operating a power tool. Do not use tool while tired or
under the influence of drugs, alcohol, or medication. A
moment of inattention while operating power tools may result in
serious personal injury.
e Dress properly. Do not wear loose clothing or jewelry. Contain
long hair. Keep your hair, clothing, and gloves away from
moving parts. Loose clothing, jewelry, or long hair can be caught
in moving parts.
e Avoid accidental starting. Be sure switch is in the locked or
off position before inserting battery pack. Carrying tools with
your finger on the switch or inserting the battery pack into a tool
with the switch on invites accidents.
e Remove adjusting keys or wrenches before turning the tool
on. A wrench or a key that is left attached to a rotating part of the
tool may result in personal injury.
¢ Do not overreach. Keep proper footing and balance at all
times. Proper footing and balance enables better control of the tool
in unexpected situations.
e Use safety equipment. Always wear eye protection. Dust mask,
non-skid safety shoes, hard hat, or hearing protection must be
used for appropriate conditions.
TOOL USE AND CARE
e Use clamps or other practical way to secure and support the
workpiece to a stable platform. Holding the work by hand or
against your body is unstable and may lead to a loss of control.
¢ Do not force tool. Use the correct tool for your application.
The correct tool will do the job better and safer at the rate for which
it is designed.
¢ Do not use tool if switch does not turn it on or off. A tool that
cannot be controlled with the switch is dangerous and must be
repaired.
¢ Disconnect battery pack from tool or place the switch in the
locked or off position before making any adjustments,

changing accessories, or storing the tool. Such preventative
safety measures reduce the risk of starting the tool accidentally.
¢ Store idle tools out of reach of children and other untrained
persons. Tools are dangerous in the hands of untrained users.
¢ 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 sparks, burns, or a fire.
¢ Maintain tools with care. Keep cutting tools sharp and clean.
Properly maintained tools, with sharp cutting edges are less likely
to bind and are easier to control.
¢ Check for misalignment or binding of moving parts, breakage
of parts, and any other condition that may affect the tools
operation. If damaged, have the tool serviced before using.
Many accidents are caused by poorly maintained tools.
e Use only accessories that are recommended by the
manufacturer for your model. Accessories that may be suitable
for one tool, may create a risk of injury when used on another tool.
ne
Tool service must be performed only by qualified repair
personnel. Service or maintenance performed by unqualified
personnel may result in a risk of injury.
¢ When servicing a tool, use only identical replacement parts.
Follow instructions in the Maintenance section of this manual.
Use of unauthorized parts or failure to follow Maintenance
Instructions may create a risk of shock or injury.
Specific Safety Rules
¢ Hold tool by insulated gripping surfaces when performing an
operation where the tool may contact hidden wiring. Contact
with a “live” wire will also make exposed metal parts of the tool
‘live” and shock the operator.
¢ Wear ear protectors when hammering for extented periods of
time. Prolonged exposure to high intensity noise can cause
hearing loss. Temporary hearing loss or serious ear drum damage
may result from high sound levels generated by hammer drilling.
———— Safety Rules
Wear safety goggles or other eye protection. Hammering and
drilling operations cause chips to fly. Flying particles can cause
permanent eye damage.
e¢ When working on ladder or on scaffolding be sure to lay the
tool down on its side when not in use. Some tools with large
battery packs will stand upright but may be easily knocked over.
¢ 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.
¢ Hammer bits and tools get hot during operation. Wear gloves
when touching them.
e 4\ CAUTION:DO NOT TOUCH ANY METAL PARTS OF THE TOOL
when drilling or driving into walls, floors or wherever live electrical wires
may be encountered! Hold the tool only by insulated grasping surfaces
to prevent electric shock if you drill or drive into a live wire.
e The label on your tool may include the following symbols.
VS volts
Agee ee amperes
ae hertz
ae watts
as minutes
ae ee alternating current
== See direct current
NOx ts ....NO load speed
LS Class II Construction
See Nese revolutions or reciprocation per minute
© ert earthing terminal
————— safety alert symbol

BPM in te beats per minute
/A\WARNING:
Some
dust
created
by
power
sanding,
sawing,
grinding,
drilling,
and
other
construction
activities
contains
chemicals
known
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.
Important
Safety
Instructions
for
Battery
Packs
The
battery
pack
is
not
fully
charged
out
of
the
carton!
First
read
the
safety
instructions
below.
Then
follow
charging
notes
and
procedures.
READ ALL INSTRUCTIONS.
¢
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.
*
Asmall
leakage
of
liquid
from
the
battery
pack
cells
may
occur
under
extreme
usage
or
temperature
conditions.
This
does
not
indicate
a
failure.
However,
if
the
outer
seal
is
broken
and
this
leakage
gets
on
your
skin:
a.
'
Wash
quickly
with
soap
and
water.
b.
Neutralize
with
a
mild
acid
such
as
lemon
juice
or
vinegar.
c.
If
battery
liquid
gets
into
your
eyes,
flush
them
with
clean
water
for
a
minimum
of
10
minutes
and
seek
immediate
medical
attention.
(Medical
note:
The
liquid
is
25-35%
solution
of
potassium
hydroxide.)
¢
Donot
carry
extra
battery
packs
in
aprons,
pockets,
or
tool
boxes
along
with
other
metal
objects.
Battery
pack
could
be
short
circuited
causing
damage
to
the
battery
pack
and
possibly
causing
severe
burns
or
fire.
e
Charge
the
battery
packs
only
in
DeWALT
chargers.
:
e
NOTE:
The
batteries
in
your
battery
pack
are
the
nickel-cadmium
type.
Cadmium
is
considered
to
be
a
toxic
material
by
the
Environmental
Protection
Agency.
Before
disposing
of
damaged
or
worn
out
Nickel-Cadmium
battery
packs,
check
with
your
state
Environmental
Protection
Agency
to
find
out
about
special
restrictions
on
the
disposal
of
these
battery
packs
or
return
them
to
a
DeWALT
certified
service
center
for
recycling.
*
DO
NOT
store
or
use
the
tool
and
battery
pack
in
locations
where
the
temperature
may
reach
or
exceed
105°F
(such
as
outside
sheds
or
metal
buildings
in
summer).
A\
DANGER:
Never
attempt
to
open
the
battery
pack
for
any
reason.
If
battery
pack
case
is
cracked
or
damaged,
do
not
insert
into
charger.
Danger
of
electric
shock
or
electrocution.
Damaged
battery
packs
should
be
returned
to
service
center
for
recycling.
Battery Packs
Your
tool
uses
either
a
12,
14.4
or
18
Volt
DeWALT
battery
pack.
When
ordering
replacement
battery
packs,
be
sure
to
include
catalog
number
and
voltage:
Extended
Run-Time
battery
packs
deliver
25%
more
run-time
than
standard
battery
packs.
NOTE:
Your
tool
will
accept
either
standard
or
Extended
Run
Time
battery
packs.
However,
be
sure
to
select
proper
voltage.
The RBRC™ Seal
The
RBRC™
(Rechargeable
Battery
Recycling
Corp-
oration)
Seal
on
the
nickel-cadmium
battery
(or
battery
pack)
indicates
that
the
costs
to
recycle
the
battery
(or
battery
pack)
at
the
end
of
its
useful
life
have
already
been
paid
by
DeWALT.
In
some
areas,
it
is
illegal
to
place
spent
nickel-cadmium
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
to
facilitate
the
collection
of
spent
nickel-cadmium
batteries.
Help
protect
our
environment
and

conserve natural resources by returning the spent nickel-cadmium
battery 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.
Important Safety Instructions for Battery
Chargers
SAVE THESE INSTRUCTIONS - This manual contains important
safety instructions for DeWALT battery chargers.
¢ Before using battery charger, read all instructions and cautionary
markings on battery charger, battery and product using battery.
¢ 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.
A\CAUTION:To reduce the risk of injury, charge only DEWALT nickel
cadmium rechargeable batteries. Other types of batteries may
burst causing personal injury and damage.
A\ CAUTION: Under certain conditions, with the charger plugged in to
the power supply, the exposed charging contacts inside the charger
can be shorted by foreign material. Foreign materials of a
conductive nature such as, but not limited to, 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 charger before
attempting to clean.
A\ DANGER: High voltage present at charging terminals. Do not
_ probe with conductive objects. Danger of electric shock or
electrocution.
A\WARNING: Don't allow any liquid to get inside charger or expose to
rain or snow. Electric shock may result.
¢ The charger and battery pack are specifically designed to work
together. DO NOT attempt to charge the battery pack with any chargers
other than the ones in this manual.
¢ 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. :
To reduce risk of damage to electric plug and cord, pull by plug rather
than cord when disconnecting charger.
Make sure cord is located so that it will not be stepped on, tripped over,
or otherwise subjected to damage or stress.
An extension cord should not be used unless absolutely necessary.
Use of improper extension cord could result in risk of fire, electric shock,
or electrocution.
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. When using more than one extension to make up the
total length, be sure each individual extension contains at least the
minimum wire size.
Recommended Minimum AWG Size for Extension Cords
Total Extension Cord Length (feet)
25 50 75 100 125 150 175
Wire Gauge
== 18: 16 16 14 14 12
The charger is ventilated through slots in the top and the bottom of the
housing. Do not place any object on top of 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.
Do not operate charger with damaged cord or plug — have them
replaced immediately.
Do not operate 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 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.
To reduce risk of electric shock, unplug charger from outlet before
attempting any cleaning. Removing the battery pack will not reduce this
risk.
NEVER aitempt to connect 2 chargers together.

¢
Do
not
use
charger
with
any
power
source
other
than
that
indicated
on
the
nameplate.
Chargers
Your
DeWALT
battery
can
be
charged
in
DeWALT
1
Hour
Chargers,
15
Minute
Chargers
or
Vehicle
chargers.
Be
sure
to
read
all
safety
instructions
before
using
your
charger.
Consult
chart
on
back
cover
for
compatibility
of
chargers
and
battery
packs.
Using Tune-Up™ Mode
Your
charger
may
have
Tune-up™
mode
which
will
equalize
or
balance
the
individual
cells
in
the
battery
pack
at
its
peak
capacity.
This
cycle
takes
up
to
8
hours
to
complete.
Battery
packs
should
be
tuned
up
weekly
or
after
10
to
20
charge/discharge
cycles
or
whenever
the pack no longer delivers the same amount of work.
1.
To
tune
up
your
battery
pack,
place
the
battery
in
the
charger
as
usual.
The
red
light
will
blink
continuously
indicating
that
the
charge
cycle
has started.
2.
The
Tune-up™
Button
may
be
pressed
at
any
time
after
the
charge
has
started.
The
red
light
will
stop
blinking
momentarily,
blink
quickly
3
times,
and
then
resume
blinking
continuously.
The
charger
is
now giving
your
batteries
a tune-up.
3.
When
the
charge
cycle
has
completed,
the
light
will
stay
on
continuously.
The
pack
is
fully
charged
and
may
be
used
at
this
time
or
left
in the
charger.
4.
If
you
select
Tune-up™
and
then
change
your
mind,
remove
the
battery
from
the
charger.
After
5
seconds,
insert
the
battery
into
the
charger.
The
normal
charge
cycle
will
commence.
Charging Procedure
1 HOUR CHARGERS
1. Plug the charger into an appropriate power outlet.
2.
Insert
the
battery
pack
into
the
charger
making
sure
the
pack
is
fully
seated
in
the
charger.
The
red
(charging)
light
will
blink
continuously
indicating that the charging process has started.
FIG. 1 FIG. 1A
3.
The
battery
pack
will
be
fully
charged
in
about
1
hour.
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.
4.
PROBLEM
POWER
LINE:
If
your
charger
has
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.
5.
HOT
PACK
DELAY:
If
your
charger
has a
Hot
Pack
Delay
feature:
When
the
charger
detects
a
battery
that
is
hot,
it
automatically
starts
a
Hot
Pack
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
Pack
Delay
mode.
15 MINUTE CHARGERS
1.
Plug
the
charger
into
an
appropriate
power
outlet.
The
charger
will
beep twice, the red light will blink and go off.

2. Insert the battery pack into the charger making sure the pack is fully
seated in the charger. The red light will blink and the charger will
beep once indicating the charging process has started.
3. The battery pack will be fully charged in less than 15 minutes under
most conditions. This will be indicated by the red light remaining ON
and 3 beeps. The pack is fully charged and may be used at this time
or left in the charger.
4. WEAK BATTERY PACKS: The 15 minute charger can also detect
a weak battery. Such batteries are still usable but should not be
expected to perform as much work. In such cases, about 10
seconds after battery insertion, the charger will beep rapidly 8 times
to indicate a weak battery condition. The charger will then go on to
charge the battery to the highest capacity possible.
ALL CHARGERS
Leaving the battery pack in the charger: When the red light remains
ON, the charger has switched to its "equalize charge" mode which
lasts approximately 4 hours, after which the charger will switch to
"maintenance charge" mode. The battery pack can be removed at
any time during these charge cycles, but will only be fully charged if the
red light is continuously ON. The charger and battery pack can be left
connected with the red light glowing indefinitely. The charger will keep
the battery pack fresh and fully charged. A battery pack will slowly
lose its charge when kept out of the charger. If the battery pack has not
been kept on maintenance charge, it may need to be recharged before
use. A battery pack may also slowly lose its charge if left in a charger
that is not plugged into an appropriate AC source.
puportant Charging Notes
. 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 touch while
charging. This is a normal condition, and does not indicate a
problem.
3. If the battery pack does not charge properly — (1) Check current at
receptacle by plugging in a lamp or other appliance, (2) Check to see
if receptacle is connected to a light switch which turns power off
when you turn out the lights. (3) Move charger and battery pack toa
location where the surrounding air temperature is approximately
65°F - 75°F (18°- 24°C). (4) If charging problems persist, take or
send 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 affect on the battery pack.
TROUBLE INDICATORS: These chargers are designed to detect
certain problems that can arise with battery packs which would be
indicated by the red light flashing at a fast rate (and continuous beeping
for 15 Minute Chargers). If this occurs, re-insert battery pack. If
problem persists, try a different battery pack to determine if the charger
is OK. If the new pack charges correctly, then the original pack is
defective and should be returned to a service center for recycling. If the
new battery pack elicits the same trouble indication as the original,
have the charger tested at an authorized service center.
Operation
Installing and Removing the Battery Pack
NOTE: Make sure your battery pack is fully charged.
To install the battery pack into the tool handle, align the base of the
tool with the notch inside the tool’s handle (FIG. 1) and slide the
battery pack firmly into the handle until you hear the lock snap into
place as shown in FIG. 1A.
To remove the battery pack from the tool, press the release buttons
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.
Variable Speed Switch (Fig. 2)
To turn the tool on, squeeze the trigger switch. 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.
The
variable
speed
switch
enables
you
to
select
the
best
speed
fora
particular
application.
The
farther
you
squeeze
the
trigger,
the
faster
the
tool
will
operate.
Use
lower
speeds
for
starting
holes
without
a
centerpunch,
drilling
in
metals
or
plastics,
driving
screws
and
drilling
ceramics,
or
in
any
application
requiring
high
torque.
Higher
speeds
are
better
for
drilling
in
wood,
wood
compositions
and
for
using
abrasive
and
polishing
accessories.
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
switch
and
should
be
avoided.
Forward/Reverse
Control
Button
(Fig.
2)
A
forward/reverse
control
button
(A)
determines
the
direction
the
tool
will
spin
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,
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.
3)
Your
tool
has
an
adjustable
torque
screwdriver
mechanism
for
driving
and
removing
a
wide
array
of
fastener
shapes
and
sizes
and
in
some
FIG. 2 Z
FIG. 3
models,
a
hammer
mechanism
for
drilling
into
masonry.
Circling
the
collar
(A)
are
numbers,
a
drill
bit
symbol,
and
in
some
models,
and
a
hammer
symbol.
These
numbers
are
used
to
set
the
clutch
to
deliver
a
torque
range.
The
higher
the
number
on
the
collar,
the
higher
the
torque
and
the
larger
the
fastener
which
can
be
driven.
To
select
any
of
the
numbers,
rotate
until
the
desired
number
aligns
with
the
arrow.
Three
Speed
Gearing
(Fig.
3)
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
(B)
all
the
way
to
the
left.
Speed
2
(middle
torque
and
speed
setting)
is
in
the
middle
position.
Speed
3
(highest
speed
setting)
is
to
the
right.
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,
make
sure
that
the
gear
shifter
is
engaged
in
one
of
the
three
speed
settings.
Keyless
Single
Sleeve
Chuck
(Fig.
4)
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.
Lock
the
trigger
in
the OFF
position
as
described
on
page
6.
2.
Grasp
the
black
sleeve
of
the
chuck
with
one
hand
and
use
the

other hand to secure the tool as shown in Figure 4. Rotate the
sleeve counterclockwise far enough to accept the desired
accessory.
3. Insert the accessory about 3/4" into the chuck and tighten securely
by rotating the chuck sleeve clockwise with one hand while holding
the tool with the other. Your tool is equipped with an automatic
spindle lock mechanism. This allows you to open and close the
chuck with one hand.
To release the accessory, repeat step 2 above.
A\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 trigge
switch when changing accessories.
Be sure to tighten chuck with one hand on the
chuck sleeve and one hand holding the tool for
maximum tightness.
Side Handle
A\ CAUTION: Always use side handle and hold
drill with both hands. It clamps to the front of the
gear case as shown and can be rotated 360° to
permit right or left hand use.
Quick Release Chuck
DW978 (Fig. 5)
NOTE: The chuck accepts 1/4" (6.35 mm)
hex accessories only.
To install an accessory, pull the chuck collar
away from the front of the tool, insert the
accessory, and release the collar. The
accessory is locked in place. é
FIG. 5
To remove an accessory, pull the chuck collar away from the front of
the tool. Remove the accessory and release the collar.
Operation as a Drill
Turn the collar to the drill bit symbol. Install and tighten the desired drill
bit in the chuck. Select the desired speed/torque range using the gear
shifter to match the speed and torque to the planned operation. Follow
these instructions for best results when drilling.
DRILLING
1.
Use sharp drill bits only. For WOOD, use twist drill bits, spade bits,
power auger bits, or hole saws. For METAL, use high speed steel
twist drill bits or hole saws. For MASONRY, such as brick, cement,
cinder block, etc., use carbide-tipped bits.
. Be sure the material to be drilled is anchored or clamped firmly. If
drilling thin material, use a “back-up” block to prevent damage to the
material.
. Always apply pressure in a straight line with the bit. Use enough
pressure to keep the drill bit biting, but do not push hard enough to
stall the motor or deflect the bit.
Hold tool firmly to control the twisting action of the drill.
. IF DRILL STALLS, it is usually because it is being overloaded.
RELEASE TRIGGER IMMEDIATELY, remove drill bit from work,
and determine cause of stalling. DO NOT CLICK TRIGGER OFF
AND ON IN AN ATTEMPT TO START A STALLED DRILL — THIS
CAN DAMAGE THE DRILL.
. To minimize stalling as you are breaking through the material,
reduce pressure on drill and ease the bit through the last fractional
part of the hole.
. Keep the motor running when pulling the bit back out of a drilled
hole. This will help prevent jamming.
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. Operate at full on after starting the bit.
Drilling in Wood
Start drilling with slow speed and increase to full power while applying
firm pressure to 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 low
speed wood bits. Work that is likely to splinter should be backed up
with a block of wood.
Drilling in Metal
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”) holes in steel can be made easier if a pilot
hole (5/32” to 3/16”) is drilled first.
Drilling in Masonry
(Tools without a hammer feature)
Use carbide tipped bits rated for percussion drilling and be certain that
the bit is 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.
Operation as a Hammerdrill
Some models have the Hammerdrill feature. To utilize the hammer
feature of your tool, rotate the collar to align the hammer symbol with
the arrow shown in FIG.3. The hammering position is for hammer
drilling in soft concrete and masonry such as brick, mortar and soft
ceramics.
1. 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.
2. 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.
3.
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.
4. Do not pour water into the hole to settle dust. Water causes
clogging of bit flutes which will tend to make the bit bind in the hole.
Operation as a Screwdriver
Select the desired speed/torque range using the 3 speed gear shift
lever on the top of tool to match the speed and torque to the planned
operation.
Insert
the
desired
fastener
accessory
into
the
chuck
as
you
would
any
drill
bit.
Set
the
torque
adjustment
collar
(FIG.
3).
Make
a
few
practice
runs
in
scrap
or
unseen
areas
to
determine
the
proper
position of the clutch collar.
Maintenance
A\
CLEANING:
With
the
motor
running,
blow
dirt
and
dust
out
of
all
air
vents
with
dry
air
at
least
once
a
week.
Wear
safety
glasses
when
performing
this.
Exterior
plastic
parts
may
be
cleaned
with
a
damp
cloth
and
mild
detergent.
Although
these
parts
are
highly
solvent
resistant, NEVER use solvents.
Charger Cleaning Instructions:
A\
WARNING:
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
To
assure
product
SAFETY
and
RELIABILITY,
repairs,
maintenance
and
adjustment
(including
brush
inspection
and
replacement)
should
be
performed
by
certified
service
centers
or
other
qualified
service
organizations,
always
using
identical
replacement
parts.
Accessories
Recommended
accessories
for
use
with
your
tool
are
available
at
extra