DEWALT Industrial Tool Co., 701 East Joppa Road, Baltimore, MD 21286 Printed in U.S.A. (AUG02-CD-1) Form No. 384347-01
DW138/DW138-220/DW139 Copyright © 1998, 2002
The following are trademarks for one or more DEWALT power tools: the yellow and black color scheme; the “D” shaped air intake grill; the array
of pyramids on the handgrip; the kit box configuration; and the array of lozenge-shaped humps on the surface of the tool.
DW138/DW139/384347-01 rev 8/2/2002 9:20 AM Page 2
INSTRUCTION MANUAL
GUIDE D'UTILISATION
MANUAL DE INSTRUCCIONES
DW138,DW138-220, DW139
3/4" and 5/8”(13mm and 17mm) Spade Handle Drills
Perceuses de 13 mm et 17mm (3/4 et 5/8 po) à poignée-bêche
Taladros 13 mm y 17mm (3/4 "y 5/8”) Mango tipo espada
INSTRUCTIVO DE OPERACIÓN, CENTROS DE SERVICIO Y PÓLIZA
DE GARANTÍA. ADVERTENCIA: LÉASE ESTE INSTRUCTIVO ANTES
DE USAR EL PRODUCTO.
Questions? See us on the World Wide Web at www.dewalt.com
DW138/DW139/384347-01 rev 8/2/2002 9:20 AM Page 3
• USE SAFETY GLASSES. Also use face or dust mask if operation
is dusty.
• DON’T ABUSE CORD. Never carry tool by cord or yank it to
disconnect from receptacle. Keep cord from heat, oil, and sharp
edges.
• SECURE WORK. Use clamps or a vise to hold work. It’s safer than
using your hand and it frees both hands to operate tool.
• DON’T OVERREACH. Keep proper footing and balance at all
times.
• MAINTAIN TOOLS WITH CARE. Keep tools sharp and clean for
better and safer performance. Follow instructions for lubricating
and changing accessories. Inspect tool cords periodically and if
damaged, have repaired by authorized service facility. Inspect
extension cords periodically and replace if damaged. Keep
handles dry, clean, and free from oil and grease.
• DISCONNECT OR LOCK OFF TOOLS when not in use, before
servicing, and when changing accessories, such as blades, bits,
cutters.
• REMOVE ADJUSTING KEYS AND WRENCHES. Form habit of
checking to see that keys and adjusting wrenches are removed
from tool before turning it on.
• AVOID UNINTENTIONAL STARTING. Don’t carry tool with finger
on switch. Be sure switch is off when plugging in.
• EXTENSION CORDS. Use only 3-wire extension cords that have
3-prong grounding-type plugs and 3-pole receptacles that accept
the tool’s plug. Replace or repair damaged cords. Make sure your
extension cord is in good condition. When using an extension cord,
be sure to use one heavy enough to carry the current your product
will draw. An undersized cord will cause a drop in line voltage
resulting in loss of power and overheating. The following table
shows the correct size to use depending on cord length and
nameplate ampere rating. If in doubt, use the next heavier gage.
The smaller the gage number, the heavier the cord.
Important Safety Instructions
WARNING: When using electric tools, basic safety precautions
should always be followed to reduce risk of fire, electric shock, and
personal injury, including the following:
READ ALL INSTRUCTIONS
Safety Instructions For All Tools
• KEEP WORK AREA CLEAN. Cluttered areas and benches invite
injuries.
• CONSIDER WORK AREA ENVIRONMENT. Don’t expose power
tools to rain. Don’t use power tools in damp or wet locations. Keep
work area well lit. Do not use tool in presence of flammable liquids
or gases.
• GUARD AGAINST ELECTRIC SHOCK. Prevent body contact
with grounded surfaces. For example; pipes, radiators, ranges, and
refrigerator enclosures.
• KEEP CHILDREN AWAY. Do not let visitors contact tool or
extension cord. All visitors should be kept away from work area.
• STORE IDLE TOOLS. When not in use, tools should be stored in
dry, and high or locked-up place — out of reach of children.
• DON’T FORCE TOOL. It will do the job better and safer at the
rate for which it was intended.
• USE RIGHT TOOL. Don’t force small tool or attachment to do the
job of a heavy-duty tool. Don’t use tool for purpose not intended.
• DRESS PROPERLY. Do not wear loose clothing or jewelry. They
can be caught in moving parts. Rubber gloves and non-skid
footwear are recommended when working outdoors. Wear
protective hair covering to contain long hair. Air vents often cover
moving parts and should also be avoided.
English
IF YOU HAVE ANY QUESTIONS OR COMMENTS ABOUT THIS OR
ANY D
EWALT TOOL, CALL US TOLL FREE AT:
1-800-4-DEWALT (1-800-433-9258)
DW138/DW139/384347-01 rev 8/2/2002 9:20 AM Page 4
Minimum Gage for Cord Sets
Volts Total Length of Cord in Feet
120V 0-25 26-50 51-100 101-150
240V 0-50 51-100 101-200 201-300
Ampere Rating
More Not more AWG
Than Than
0-6 18161614
6 - 10 18 16 14 12
10-1216161412
• OUTDOOR USE EXTENSION CORDS. When tool is used
outdoors, use only extension cords intended for use outdoors and
so marked.
• STAY ALERT. Watch what you are doing. Use common sense.
Do not operate tool when you are tired.
• CHECK DAMAGED PARTS. Before further use of the tool, a
guard or other part that is damaged should be carefully checked
to determine that it will operate properly and perform its intended
function. Check for alignment of moving parts, binding of moving
parts, breakage of parts, mounting, and any other conditions that
may affect its operation. A guard or other part that is damaged
should be properly repaired or replaced by an authorized service
center unless otherwise indicated elsewhere in this instruction
manual. Have defective switches replaced by authorized service
center. Do not use tool if switch does not turn it on and off.
CAUTION: Wear appropriate personal hearing protection during
use. Under some conditions and duration of use, noise from this
product may contribute to hearing loss.
CAUTION: 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 insulated grasping
surfaces to prevent electric shock if you drill or drive into a live wire.
• The label on your tool may include the following symbols.
V ............................volts
A ............................amperes
Hz ..........................hertz
W ..........................watts
1
English
min ........................minutes
..........................alternating current
......................direct current
n
o ..........................no load speed
..........................
Class II Construction
…/min ....................revolutions or reciprocation per minute
..........................earthing terminal
..........................safety alert symbol
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 (CCA).
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.
Grounding Instructions
This tool should be grounded while in use to protect the operator from
electric shock. The tool is equipped with a 3-conductor cord and 3prong grounding type plug to fit the proper grounding type receptacle.
The green (or green and yellow) conductor in the cord is the grounding
wire. Never connect the green (or green and yellow) wire to a live
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CHUCK
BRUSH
INSPECTION
CAP
2
terminal. If your unit is intended for use on less than 150 V, it has a plug
that looks like that shown in sketch A. If it is for use on 150 to 250 V, it
has a plug that looks like that shown in sketch D. An adapter, sketches
B and C, is available for connecting sketch A type plugs to 2-prong
receptacles. The green-colored rigid ear, lug, or the like, extending
from the adapter must be connected to a permanent ground, such as
a properly grounded outlet box. No adapter is available for a plug as
shown in sketch D. ADAPTER SHOWN IN FIGURES B and C IS NOT
FOR USE IN CANADA.
SAVE THESE INSTRUCTIONS
Motor
Your DEWALT tool is powered by a DEWALT built motor. Be sure your
power supply agrees with the nameplate marking. The markings; 120
volts, 50/60 Hz or “AC/DC”, mean that your drill will operate on
alternating or direct current.Voltage decrease of more than 10% will
cause loss of power and overheating. All D
EWALT tools are factory
tested; if this tool does not operate, check the power supply.
Side Handle
To install the side handle, use the metal plate, four screws and four
lock washers included with the unit. Install the plate with the screws
as shown in Figure 1. Tighten all screws securely. Screw the
threaded end of the side handle into the plate and tighten securely.
English
SIDE
HANDLE
FIG. 1
FIG. 2
TRIGGER
SWITCH
TRIGGER LOCK
BUTTON
LOCK
WASHER
SCREWS
(PROVIDED)
METAL
PLATE
SIDE HANDLE
SPADE HANDLE
REVERSE FORWARD
FIG. 3
RAISED INDICATOR
REVERSING
RING
AB C
GROUNDING PIN
GROUNDED
OUTLET
BOX
GROUNDING
MEANS
ADAPTER
DW138/DW139/384347-01 rev 8/2/2002 9:20 AM Page 2
CAUTION: Always use and hold firmly the side handle or spade
handle. This is a high-torque drill: always hold it with both hands
when operating. The side handle screws into the large hole in the
top of the tool.
Switch
To turn the tool ON, depress the trigger switch. To turn the tool OFF,
release the trigger switch. (See Figure 2).
The toggle switch above the trigger is the reversing switch. Switch
this toggle only when the tool is not running or coasting. After reversing
operations are completed, switch the toggle back to forward position.
To lock the tool ON, depress the trigger and push in the lock button.
Then, while holding the lock button in position, gently release the
trigger. To release locking mechanism, depress trigger fully, then
release it. Do not lock the switch ON when drilling by hand so that you
can instantly release the trigger switch if the bit binds in the hole. The
locking feature is for use when the drill is mounted in a drill stand or
otherwise firmly held. THE LOCKING FEATURE IS NOT FOR USE
WHEN DRILLING BY HAND. Be sure to release the switch lock button
before disconnecting the tool from the power supply. Failure to do so
will cause the tool to start immediately the next time it is plugged in.
Damage or injury could result.
For reversing operation, turn the tool off and wait for it to stop coasting.
Grasp the reversing ring (Fig. 3) and turn it counterclockwise until the
raised indicator aligns with the word REVERSE.
Chuck
To insert bit, open chuck jaws by turning collar with fingers and insert
shank of bit about 3/4" (19mm) into chuck. Tighten chuck collar by
hand. Place chuck key in each of the three holes and tighten in
clockwise direction. It’s important to tighten chuck with all three holes.
To release bit, turn chuck key counterclockwise in just one hole, then
loosen the chuck by hand.
3
English
FIG. 4 FIG. 5
Chuck Removal
1. TURN OFF TOOL AND DISCONNECT FROM POWER SUPPLY.
2. Place chuck key in chuck.
3. Using a wooden mallet or similar object, strike key sharply in a
clockwise direction. This will loosen screw inside chuck.
4. Open chuck jaws fully. Insert screwdriver (or 3/16", 5mm, hex
wrench if required) into front of chuck between jaws to engage
screw head.
5. Remove screw by turning clockwise (left-hand thread).
6. Place key in chuck.
7. Using a wooden mallet or similar object, strike key sharply in a
counterclockwise direction (Fig. 4). This will loosen chuck so that it
can be unscrewed by hand.
Drilling
1.Always turn off tool and disconnect from power supply when
attaching or changing bits or accessories.
2.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
3.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.
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Lubrication
All bearings used are factory lubricated to last the life of the tool. All
needle bearings used receive their lubrication from the grease in the
gear case. Clean and relubricate gear case yearly or whenever
servicing requires the gear case to be removed. Use type and quantity
of grease shown on Parts Bulletin packed with your tool.
Gear case is removed by removing the three screws from the front of
the tool. If the chuck is too large to permit removal of the two top
screws, see instructions for chuck removal.
Motor Brushes
TURN OFF TOOL AND DISCONNECT FROM POWER SUPPLY.
To inspect brushes, unscrew the plastic brush inspection caps (located
in the sides of the motor housing) and the spring and brush assemblies
may be withdrawn from the tool. Keep brushes clean and sliding freely
in their guides. Carbon brushes have varying symbols stamped into
them, and if the brush is worn down to a point where the symbol is not
visible, they must be replaced. New brush assemblies are available at
authorized service centers.
Accessories
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
D
EWALT Industrial Tool Co., 701 East Joppa Road, Baltimore, MD
21286 or call 1-800-433-9258.
CAUTION: The use of any other accessory not recommended for
use with this tool could be hazardous.
For safety in use, the following accessories should be used only in
sizes up to the maximums shown in the table below.
4
4.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.
5.Hold tool firmly to control the twisting action of the drill.
6.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 ON
AND OFF IN AN ATTEMPT TO START A STALLED DRILL – THIS
CAN DAMAGE THE DRILL.
7.To minimize stalling on breaking through the material, reduce
pressure on drill and ease the bit through the last fractional part of
the hole.
8.Keep the motor running when pulling the bit back out of a drilled
hole. This will help prevent jamming.
Drilling in Wood
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 likely to splinter should be backed up with a
block of wood.
Drilling in Metals
Use a cutting lubricant when drilling metals. The exceptions are cast
iron and brass which should be drilled dry. The cutting lubricants that
work best are sulphurised cutting oil or lard oil; bacon grease will also
serve the purpose.
Drilling in Masonry
Use carbide tipped masonry bits at low speeds. Keep even force on the
drill but not so much that you crack the brittle materials. A smooth, even
flow of dust indicates the proper drilling rate.
English
DW138/DW139/384347-01 rev 8/2/2002 9:20 AM Page 4
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