DeWalt DC720 Instruction Manual
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Table of Contents
D
WALT Industrial Tool Co., 701 Joppa Road, Baltimore, MD 21286
E
(AUG07)
Form No. 634981-00
The following are trademarks for one or more D
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.
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.
CAUTION: Used without the safety alert symbol indicates a potentially hazardous situation
which, if not avoided, may result in property damage.
IF YOU HAVE ANY QUESTIONS OR COMMENTS ABOUT THIS OR ANY D
CALL US TOLL FREE AT: 1-800-4-D
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 residual current
device (RCD) protected supply. Use of an RCD reduces the risk of electric shock.
3) PERSONAL SAFETY
a) Stay alert, watch what you are doing and use common sense when operating a
power tool. Do not use a power tool while you are tired or under the influence of
drugs, alcohol or medication. A moment of inattention while operating power tools may
result in serious personal injury.
b) Use personal protective equipment. Always wear eye protection. Protective equip-
ment 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 con-
necting to power source and/or battery pack, picking up or carrying the tool. Carrying
power tools with your finger on the switch or energising 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 jewellery. Keep your hair, clothing and
gloves away from moving parts. Loose clothes, jewellery 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.
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 unfa-
miliar 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 dam-
aged, 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 instruc-
tions 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 suit-
able 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 con-
nection 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.
DC720–DC742
Copyright © 2007 D
WALT power tools: the yellow and black color scheme;
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WALT (1-800-433-9258)
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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.
Drill/Driver/Hammerdrill Safety Warnings
• Wear ear protectors with impact drills. Exposure to noise can cause hearing loss.
• Hold power tools by insulated gripping surfaces when performing an operation where
the cutting tool may contact hidden wiring or its own cord. Contact with a "live" wire will
make exposed metal parts of the tool "live" and shock the operator.
• 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 loss of
control.
• Wear ear protectors when hammering for extended 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 hammerdrilling.
• Wear safety goggles or other eye protection. Hammering and drilling operations cause
chips to fly. Flying particles can cause permanent eye damage.
• Hammer bits and tools get hot during operation. Wear gloves when touching them.
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 con-
struction 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.
• 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 disburse 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.
• The label on your tool may include the following symbols. The symbols and their definitions
are as follows:
V .................. volts
Hz ................ hertz
min .............. minutes
............ direct current
................ Class I Construction
....................
(grounded)
................. Class II Construction
WALT
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....................
(double insulated)
BPM ............ beats per minute
Important Safety Instructions for All Battery Packs
When ordering replacement battery packs, be sure to include 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. Then follow charging procedures outlined.
• Do not charge or use battery in explosive atmospheres, such as in the presence of
flammable liquids, gases or dust. Inserting or removing the battery from the charger may
ignite the dust or fumes.
• NEVER force battery pack into charger. DO NOT modify 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 D
• 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
WALT TOOL,
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reach or exceed 105°F (40˚) (such as outside sheds or metal buildings in summer).
DANGER: Electrocution hazard. Never attempt to open the battery pack for any reason.
If battery pack case is cracked or damaged, do not insert into charger. Do not crush, drop or
damage battery pack. Do not use a battery pack or charger that has received a sharp blow,
been dropped, run over or damaged in any way (i.e., pierced with a nail, hit with a hammer,
stepped on). Electric shock or electrocution may result. Damaged battery packs should be
returned to service center for recycling.
NOTE: Battery storage and carrying caps are provided for use whenever
the battery is out of the tool or charger. Remove cap before placing battery in
charger or tool.
WARNING: Fire hazard. Do not store or carry battery so that metal objects
can contact exposed battery terminals. For example, do not place battery in
aprons, pockets, tool boxes, product kit boxes, drawers, etc., with loose nails,
screws, keys, etc. without battery cap. 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 (i.e.,
packed in suitcases and carry-on luggage) UNLESS they are properly protected from short
circuits. So when transporting individual batteries, 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 NICKEL CADMIUM (NiCd) OR
NICKEL METAL HYDRIDE (NiMH)
• 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.
• A small 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:
a. and the battery liquid gets on your skin, immediately wash with soap and water for several
minutes.
b. and the 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.)
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 persists, seek medical attention.
WARNING: Burn hazard. Battery liquid may be flammable if exposed to spark or flame.
The RBRC™ Seal
The RBRC™ (Rechargeable Battery Recycling Corp oration) 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 D
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 D
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 and nickel cadmium, nickel metal hydride or lithium ion
batteries to an authorized D
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 instruc-
tions for battery chargers.
• Before using charger, read all instructions and cautionary markings on charger, battery pack,
and product using battery pack.
DANGER: Electrocution hazard. 120 volts are present at charging terminals. Do not probe with
conductive objects. Electric shock or electrocution may result.
WARNING: Shock hazard. Do not allow any liquid to get inside charger. Electric shock may
result.
CAUTION: Burn hazard. To reduce the risk of injury, charge only D
batteries. Other types of batteries may burst causing personal injury and damage.
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.
• 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 D
batteries. Any other uses may result in risk of fire, electric shock or electrocution.
• Do not expose charger to rain or snow.
• Pull by plug rather than cord when disconnecting charger. This will reduce risk of
damage to electric plug and cord.
• Make sure that 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 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.
• An extension cord must have adequate wire size (AWG or American Wire Gauge) for
safety. The smaller the gauge number of the wire, the greater the capacity of the cable, that
is 16 gauge has more capacity than 18 gauge. An undersized cord will cause a drop in line
voltage resulting in loss of power and overheating. When using more than one extension to
make up the total length, be sure each individual extension contains at least the minimum
A ......................amperes
W .....................watts
...................alternating current
n o ....................no load speed
....................earthing terminal
....................safety alert symbol
.../min .............revolutions or reciprocation
........................per minute
IPM..................impacts per minute
READ ALL INSTRUCTIONS
WALT chargers.
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WALT. In some areas, it is illegal to
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WALT and other battery users, has established programs in
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WALT service center or to your local retailer for recycling. You may
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WALT rechargeable
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WALT rechargeable
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Table of Contents
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Summary of Contents for DeWalt DC720
- Page 1 ....safety alert symbol WALT Industrial Tool Co., 701 Joppa Road, Baltimore, MD 21286 ....Class II Construction …/min .....revolutions or reciprocation (AUG07) Form No. 634981-00 DC720–DC742 Copyright © 2007 D WALT ....(double insulated) ......per minute The following are trademarks for one or more D WALT power tools: the yellow and black color scheme;...
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Page 2: Operation
A. Trigger switch NOTE: A smooth, even flow of dust from the hole indicates proper drilling rate. B. Forward/reverse button MAXIMUM RECOMMENDED CAPACITIES C. Torque adjustment collar DC725 DC720 DC730, DC742 D. Gear selector Size Speed Size Speed... - Page 3 D WALT Industrial Tool Co., 701 East Joppa Road, Baltimore, MD 21286, call 1-800-4- liquide qui gicle hors du bloc-piles peut provoquer des irritations ou des brûlures. WALT (1-800-433-9258) or visit our website www.dewalt.com. 6) RÉPARATION Three Year Limited Warranty a) Faire réparer l’outil électrique par un réparateur professionnel en n’utilisant que des...
- Page 4 CAPACITÉS MAXIMALES RECOMMANDÉES importantes et permettent d’éviter d’endommager gravement le bloc-piles. DC725 DC720 DC730, DC742 2. Le chargeur et le bloc-piles peuvent devenir chauds au toucher pendant la charge. Il s’agit d’un état normal et cela n’indique pas un problème. Pour faciliter le refroidissement du...
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Page 5: Entretien
Solicite a una persona calificada en reparaciones que realice el mantenimiento couvertes par la présente garantie, visiter le site www.dewalt.com ou composer le 1 800 433- de su herramienta eléctrica y que sólo utilice piezas de repuesto idénticas. Esto 9258 (1 800 4-D WALT). - Page 6 • Una pequeña pérdida de líquido de las celdas del paquete de baterías puede garantiza la duración máxima de la batería. La luz roja se enciende y apaga durante períodos presentarse en condiciones de uso o temperatura extremas. Esto no indica una falla. prolongados, y durante períodos cortos durante el modo de Retraso por paquete caliente.
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Page 7: Mantenimiento
Esta garantía no aplica a accesorios o a daños causados por reparaciones realizadas o intentadas por terceros.