DeWalt DCS372 Instruction Manual
DCS372
18V 5-1/2" (140 mm) Cordless Metal-Cutting Circular Saw
Scie circulaire à métaux sans fil, 140mm (5-1/2po) et 18V
Sierra circular inalámbrica de 18V 140 mm (5,5 pulg.) para corte de metal
INSTRUCTION MANUAL
GUIDE D’UTILISATION
MANUAL DE INSTRUCCIONES
INSTRUCTIVO DE OPERACIÓN, CENTROS DE SERVICIO Y PÓLIZA DE
GARANTÍA. ADVERTENCIA: LÉASE ESTE INSTRUCTIVO ANTES DE
USAR EL PRODUCTO.
If you have questions or comments, contact us.
Pour toute question ou tout commentaire, nous contacter.
Si tiene dudas o comentarios, contáctenos.
1-800-4-DEWALT • www.dewalt.com
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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.
Defi nitions: Safety Guidelines
The definitions below describe the level of severity for each
signal word. Please read the manual and pay attention to these
symbols.
DANGER: Indicates an imminently hazardous situation
which, if not avoided, will result in death or serious injury.
WARNING: Indicates a potentially hazardous situation
which, if not avoided, could result in death or serious injury.
CAUTION: Indicates a potentially hazardous situation which,
if not avoided, may result in minor or moderate injury.
NOTICE: Indicates a practice not related to personal injury
which, if not avoided, may result in property damage.
IF YOU HAVE ANY QUESTIONS OR COMMENTS ABOUT THIS OR
ANY D
EWALT TOOL, CALL US TOLL FREE AT: 1-800-4-DEWALT
(1-800-433-9258).
WARNING: To reduce the risk of injury, read the instruction
manual.
General Power Tool Safety Warnings
WARNING! Read all safety warnings and all instructions.
Failure to follow the warnings and instructions may result in
electric shock, fire and/or serious injury.
SAVE ALL WARNINGS AND INSTRUCTIONS
FOR FUTURE REFERENCE
The term “power tool” in the warnings refers to your mains-operated
(corded) power tool or battery-operated (cordless) power tool.
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3) PERSONAL SAFETY
a) Stay alert, watch what you are doing and use common
sense when operating a power tool. Do not use a power
tool while you are tired or under the influence of drugs,
alcohol or medication. A moment of inattention while
operating power tools may result in serious personal injury.
b) Use personal protective equipment. Always wear eye
protection. Protective equipment such as dust mask, nonskid safety shoes, hard hat, or hearing protection used for
appropriate conditions will reduce personal injuries.
c) Prevent unintentional starting. Ensure the switch is in
the off position before connecting to power source and/
or battery pack, picking up or carrying the tool. Carrying
power tools with your finger on the switch or energizing power
tools that have the switch on invites accidents.
d) Remove any adjusting key or wrench before turning the
power tool on. A wrench or a key left attached to a rotating
part of the power tool may result in personal injury.
e) Do not overreach. Keep proper footing and balance at
all times. This enables better control of the power tool in
unexpected situations.
f) Dress properly. Do not wear loose clothing or jewelry.
Keep your hair, clothing and gloves away from moving
parts. Loose clothes, jewelry or long hair can be caught in
moving parts.
g) If devices are provided for the connection of dust
extraction and collection facilities, ensure these are
connected and properly used. Use of dust collection can
reduce dust-related hazards.
4) POWER TOOL USE AND CARE
a) Do not force the power tool. Use the correct power tool
for your application. The correct power tool will do the job
better and safer at the rate for which it was designed.
b) Do not use the power tool if the switch does not turn it
on and off. Any power tool that cannot be controlled with the
switch is dangerous and must be repaired.
c) Disconnect the plug from the power source and/or the
battery pack from the power tool before making any
adjustments, changing accessories, or storing power
tools. Such preventive safety measures reduce the risk of
starting the power tool accidentally.
d) Store idle power tools out of the reach of children and do
not allow persons unfamiliar with the power tool or these
instructions to operate the power tool. Power tools are
dangerous in the hands of untrained users.
e) Maintain power tools. Check for misalignment or binding
of moving parts, breakage of parts and any other condition
that may affect the power tool’s operation. If damaged,
have the power tool repaired before use. Many accidents
are caused by poorly maintained power tools.
f) Keep cutting tools sharp and clean. Properly maintained
cutting tools with sharp cutting edges are less likely to bind and
are easier to control.
g) Use the power tool, accessories and tool bits, etc. in
accordance with these instructions, taking into account
the working conditions and the work to be performed.
Use of the power tool for operations different from those
intended could result in a hazardous situation.
5) BATTERY TOOL USE AND CARE
a) Recharge only with the charger specified by the
manufacturer. A charger that is suitable for one type of
battery pack may create a risk of fire when used with another
battery pack.
b) Use power tools only with specifically designated battery
packs. Use of any other battery packs may create a risk of
injury and fire.
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c) When battery pack is not in use, keep it away from other
metal objects, like paper clips, coins, keys, nails, screws,
or other small metal objects, that can make a connection
from one terminal to another. Shorting the battery terminals
together may cause burns or a fire.
d) Under abusive conditions, liquid may be ejected from
the battery; avoid contact. If contact accidentally occurs,
flush with water. If liquid contacts eyes, additionally seek
medical help. Liquid ejected from the battery may cause
irritation or burns.
6) SERVICE
a) Have your power tool serviced by a qualified repair
person using only identical replacement parts. This will
ensure that the safety of the power tool is maintained.
Safety Instructions for All Saws
a) DANGER: Keep hands away from cutting area and
the blade. Keep your second hand on auxiliary handle,
or motor housing. If both hands are holding the saw, they
cannot be cut by the blade.
b) Do not reach underneath the workpiece. The guard cannot
protect you from the blade below the workpiece.
c) Adjust the cutting depth to the thickness of the workpiece.
Less than a full tooth of the blade teeth should be visible below
the workpiece.
d) Never hold piece being cut in your hands or across
your leg. Secure the workpiece to a stable platform. It
is important to support the work properly to minimize body
exposure, blade binding, or loss of control.
e) Hold power tool by insulated gripping surfaces when
performing an operation where the cutting tool may
contact hidden wiring. Contact with a “live” wire will also
make exposed metal parts of the power tool “live” and shock
the operator.
f) When ripping always use a rip fence or straight edge
guide. This improves the accuracy of cut and reduces the
chance of blade binding.
g) Always use blades with correct size and shape (diamond
versus round) of arbor holes. Blades that do not match the
mounting hardware of the saw will run eccentrically, causing
loss of control.
h) Never use damaged or incorrect blade washers or bolt.
The blade washers and bolt were specially designed for your
saw, for optimum performance and safety of operation.
Further Safety Instructions for All Saws
CAUSES AND OPERATOR PREVENTION OF KICKBACK:
• Kickback is a sudden reaction to a pinched, bound or misaligned
saw blade, causing an uncontrolled saw to lift up and out of the
workpiece toward the operator;
• When the blade is pinched or bound tightly by the kerf closing
down, the blade stalls and the motor reaction drives the unit rapidly
back toward the operator;
• If the blade becomes twisted or misaligned in the cut, the teeth at
the back edge of the blade can dig into the top surface of the wood
causing the blade to climb out of the kerf and jump back toward the
operator.
Kickback is the result of saw misuse and/or incorrect operating
procedures or conditions and can be avoided by taking proper
precautions as given below:
a) Maintain a firm grip with both hands on the saw and
position your arms to resist kickback forces. Position
your body to either side of the blade, but not in line with
the blade. Kickback could cause the saw to jump backwards,
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handle and make sure it moves freely and does not touch the
blade or any other part, in all angles and depths of cut.
b) Check the operation of the lower guard spring. If the
guard and the spring are not operating properly, they
must be serviced before use. Lower guard may operate
sluggishly due to damaged parts, gummy deposits, or a buildup of debris.
c) Lower guard should be retracted manually only for
special cuts such as “plunge cuts” and “compound cuts.”
Raise lower guard by retracting handle and as soon
as blade enters the material, the lower guard must be
released. For all other sawing, the lower guard should operate
automatically.
d) Always observe that the lower guard is covering the
blade before placing saw down on bench or floor. An
unprotected, coasting blade will cause the saw to walk
backwards, cutting whatever is in its path. Be aware of the time
it takes for the blade to stop after switch is released.
NOTE: Although the above information references wood, this saw is
only to be used to cut metal. Kickback can occur when cutting metal.
Additional Specifi c Safety Instructions for
Circular Saws
WARNING: Do not use abrasive wheels or blades.
WARNING: Do not use water feed attachments.
CAUTION: Do not attempt to cut stainless steel, rebar,
hardened or heat-treated steel, cast iron, masonry or unknown
materials
• 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.
but kickback forces can be controlled by the operator, if proper
precautions are taken.
b) When blade is binding, or when interrupting a cut for any
reason, release the trigger and hold the saw motionless
in the material until the blade comes to a complete
stop. Never attempt to remove the saw from the work
or pull the saw backward while the blade is in motion or
kickback may occur. Investigate and take corrective actions
to eliminate the cause of blade binding.
c) When restarting a saw in the workpiece, center the
saw blade in the kerf and check that saw teeth are not
engaged into the material. If saw blade is binding, it may
walk up or kickback from the workpiece as the saw is restarted.
d) Support large panels to minimize the risk of blade
pinching and kickback. Large panels tend to sag under their
own weight. Supports must be placed under the panel on both
sides, near the line of cut and near the edge of the panel.
e) Do not use dull or damaged blades. Unsharpened or
improperly set blades produce narrow kerf causing excessive
friction, blade binding and kickback.
f) Blade depth and bevel adjusting locking levers must be
tight and secure before making cut. If blade adjustment
shifts while cutting, it may cause binding and kickback.
g) Use extra caution when sawing into existing walls or
other blind areas. The protruding blade may cut objects that
can cause kickback.
LOWER GUARD SAFETY INSTRUCTIONS
a) Check lower guard for proper closing before each use. Do
not operate the saw if lower guard does not move freely
and close instantly. Never clamp or tie the lower guard
into the open position. If saw is accidentally dropped, lower
guard may be bent. Raise the lower guard with the retracting
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• Keep your body positioned to either side of the blade, but
not in line with the saw blade. KICKBACK could cause the saw
to jump backwards (see Causes and Operator Prevention of
Kickback and KICKBACK).
• Air vents often cover moving parts and should be avoided.
Loose clothes, jewelry or long hair can be caught in moving parts.
WARNING: ALWAYS use safety glasses. Everyday eyeglasses are
NOT safety glasses. Also use face or dust mask if cutting operation
is dusty. ALWAYS WEAR CERTIFIED SAFETY EQUIPMENT:
• ANSI Z87.1 eye protection (CAN/CSA Z94.3),
• ANSI S12.6 (S3.19) hearing protection,
• NIOSH/OSHA/MSHA respiratory protection.
WARNING: Some dust created by power sanding, sawing,
grinding, drilling, and other construction activities contains chemicals
known to the State of California to cause cancer, birth defects or
other reproductive harm. Some examples of these chemicals are:
• lead from lead-based paints,
• crystalline silica from bricks and cement and other masonry
products, and
• arsenic and chromium from chemically-treated lumber.
Your risk from these exposures varies, depending on how often you
do this type of work. To reduce your exposure to these chemicals:
work in a well ventilated area, and work with approved safety
equipment, such as those dust masks that are specially designed to
filter out microscopic particles.
• Avoid prolonged contact with dust from power sanding,
sawing, grinding, drilling, and other construction activities.
Wear protective clothing and wash exposed areas with soap
and water. Allowing dust to get into your mouth, eyes, or lay on
the skin may promote absorption of harmful chemicals.
WARNING: Use of this tool can generate and/or disperse dust,
which may cause serious and permanent respiratory or other
injury. Always use NIOSH/OSHA approved respiratory protection
appropriate for the dust exposure. Direct particles away from face
and body.
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 circular saw on a stable
surface, shoe side down, 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 A ......................amperes
Hz ................. hertz W .....................watts
min ............... minutes or AC .......... alternating
or DC ... direct current current
.................Class I Construction or AC/DC ...alternating
.....................
(grounded) ........................or direct
................. Class II Construction current
(double insulated) no ....................no load
…/min ..........per minute speed
BPM .............beats per minute
n ......................rated
IPM ............... impacts per minute
........................speed
RPM ............. revolutions per
.....................earthing
minute terminal
sfpm .............surface feet
.....................safety alert
..................... per minute symbol
SPM .............strokes per minute
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Important Safety Instructions for All
Battery Packs
When ordering replacement battery packs, be sure to include the
catalog number and voltage. Consult the chart at the end of this
manual for compatibility of chargers and battery packs.
The battery pack is not fully charged out of the carton. Before using
the battery pack and charger, read the safety instructions below. Then
follow charging procedures outlined.
READ ALL INSTRUCTIONS
• 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
EWALT chargers.
• DO NOT splash or immerse in water or other liquids.
• Do not store or use the tool and battery pack in locations
where the temperature may reach or exceed 105 °F (40 °C)
(such as outside sheds or metal buildings in summer).
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 U.S. 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
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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 persist, seek medical
attention.
WARNING: Burn hazard. Battery liquid may be flammable if
exposed to spark or flame.
The RBRCTM Seal
The RBRC™ (Rechargeable Battery Recycling
Corporation) Seal on the nickel cadmium, nickel metal
hydride or lithium ion batteries (or battery packs) indicate
that the costs to recycle these batteries (or battery
packs) at the end of their useful life have already been
paid by D
EWALT. In some areas, it is illegal to place
spent nickel cadmium, nickel metal hydride or lithium ion batteries in
the trash or municipal solid waste stream and the RBRC program
provides an environmentally conscious alternative.
RBRC™ in cooperation with D
EWALT and other battery users, has
established programs in the United States and Canada to facilitate
the collection of spent nickel cadmium, nickel metal hydride or lithium
ion batteries. Help protect our environment and conserve natural
resources by returning the spent nickel cadmium, nickel metal hydride
or lithium ion batteries to an authorized D
EWALT service center or
to your local retailer for recycling. You may also contact your local
recycling center for information on where to drop off the spent battery.
RBRC™ is a registered trademark of the Rechargeable Battery
Recycling Corporation.
Important Safety Instructions for All
Battery Chargers
SAVE THESE INSTRUCTIONS: This manual contains important
safety and operating instructions for battery chargers.
• Before using 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
EWALT rechargeable batteries. Other types of batteries may burst
causing personal injury and damage.
NOTICE: 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, grinding dust, metal chips, steel
wool, aluminum foil, or any buildup of metallic particles should be
kept away from charger cavities. Always unplug the charger from
the power supply when there is no battery pack in the cavity. Unplug
charger before attempting to clean.
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• 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
EWALT rechargeable 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 wire size. The following table shows the correct size to
use depending on cord length and nameplate ampere rating. If in
doubt, use the next heavier gauge. The smaller the gauge number,
the heavier the cord.
Minimum Gauge for Cord Sets
Ampere
Rating
Volts Total Length of Cord in Feet (meters)
120V 25 (7.6) 50 (15.2) 100 (30.5) 150 (45.7)
240V 50 (15.2) 100 (30.5) 200 (61.0) 300 (91.4)
More
Than
Not
More
Than
AWG
0 6 18 16 16 14
610 18 16 14 12
10 12 16 16 14 12
12 16 14 12 Not Recommended
• Do not place any object on top of charger or place the
charger on a soft surface that might block the ventilation
slots and result in excessive internal heat. Place the charger
in a position away from any heat source. The charger is ventilated
through slots in the top and the bottom of the housing.
• Do not operate charger with damaged cord or plug.
• 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.
• Disconnect the charger from the outlet before attempting
any cleaning. This will reduce the risk of electric shock.
Removing the battery pack will not reduce this risk.
• NEVER attempt to connect two chargers together.
• The charger is designed to operate on standard 120 volts
household electrical power. Do not attempt to use it on any
other voltage. This does not apply to the vehicular charger.
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2. Insert the battery pack (I) into the charger, as shown in Figure 1,
making sure the pack is fully seated in charger. The red (charging)
light will blink continuously indicating that the charging process
has started.
3. The completion of charge will be indicated by the red light
remaining on continuously. The pack is fully charged and may be
used at this time or left in the charger.
FIG. 1
I
Indicator Light Operation
Charge Indicators
Some chargers are designed to detect certain problems that can arise
with battery packs. Problems are indicated by the red light flashing
at a fast rate. If this occurs, re-insert battery pack into the charger. If
the problem persists, try a different battery pack to determine if the
charger is OK. If the new pack charges correctly, then the original
Using Automatic Tune-Up™ Mode
The automatic Tune-Up™ Mode equalizes or balances the
individual cells in the battery pack allowing it to function at peak
capacity. Battery packs should be tuned up weekly or after
10 charge/discharge cycles or whenever the pack no longer delivers
the same amount of work. To use the automatic Tune-Up™, place
the battery pack in the charger and leave it for at least 8 hours. The
charger will cycle through the following modes.
1. The red light will blink continuously indicating that the 1-hour
charge cycle has started.
2. When the 1-hour charge cycle is complete, the light will stay on
continuously and will no longer blink. This indicates that the pack
is fully charged and can be used at this time.
3. If the pack is left in the charger after the initial 1-hour charge, the
charger will begin the Automatic Tune-Up™ mode. This mode
continues up to 8 hours or until the individual cells in the battery
pack are equalized. The battery pack is ready for use and can be
removed at any time during the Automatic Tune-Up™ mode.
4. Once the Automatic Tune-Up™ mode is complete, the charger will
begin a maintenance charge; the red indicator will remain lit.
Chargers
Your tool uses a DEWALT charger. Be sure to read all safety instructions
before using your charger. Consult the chart at the end of this manual
for compatibility of chargers and battery packs.
Charging Procedure (Fig. 1)
DANGER: Electrocution hazard. 120 volts are present at charging
terminals. Do not probe with conductive objects. Electric shock or
electrocution may result.
1. Plug the charger into an appropriate outlet before inserting battery
pack.
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pack is defective and should be returned to a service center or
other collection site for recycling. If the new battery pack elicits the
same trouble indication as the original, have the charger tested at an
authorized service center.
HOT/COLD PACK DELAY
Some chargers have a Hot/Cold 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.
PROBLEM POWER LINE
Some chargers have a Problem Power Line indicator. When the
charger is used with some portable power sources such as generators
or sources that convert DC to AC, the charger may temporarily
suspend operation, flashing the red light with two fast blinks
followed by a pause. This indicates the power source is out of limits.
LEAVING THE BATTERY PACK IN THE CHARGER
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.
NOTE: 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.
WEAK BATTERY PACKS: Chargers can also detect a weak battery
pack. Such batteries are still usable but should not be expected to
perform as much work. The charger will indicate to replace battery
pack.
Important Charging Notes
1. Longest life and best performance can be obtained if the battery
pack is charged when the air temperature is between 65 °F and
75 °F (18 °–24 °C). DO NOT charge the battery pack in an air
temperature below +40°F (+4.5°C), or above +105°F (+40.5°C).
This is important and will prevent serious damage to the battery
pack.
2. The charger and battery pack may become warm to touch while
charging. This is a normal condition, and does not indicate a
problem. To facilitate the cooling of the battery pack after use,
avoid placing the charger or battery pack in a warm environment
such as in a metal shed, or an uninsulated trailer.
3. If the battery pack does not charge properly:
a. Check operation of receptacle by plugging in a lamp or other
appliance;
b. Check to see if receptacle is connected to a light switch which
turns power off when you turn out the lights;
c. Move charger and battery pack to a location where the
surrounding air temperature is approximately 65 °F–75 °F
(18°–24°C);
d. If charging problems persist, take the tool, battery pack and
charger to your local service center.
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.
5. Under certain conditions, with the charger plugged into 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, grinding dust, metal chips, steel
wool, aluminum foil, or any buildup of metallic particles should
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English
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.
6. Do not freeze or immerse charger in water or any other liquid.
WARNING: Shock hazard. Don’t allow any liquid to get inside
charger. Electric shock may result.
WARNING: Burn hazard. Never attempt to open the battery pack
for any reason. If the plastic housing of the battery pack breaks or
cracks, return to a service center for recycling.
Storage Recommendations
1. The best storage place is one that is cool and dry away from direct
sunlight and excess heat or cold.
2. For long storage, it is recommended to store a fully charged
battery pack in a cool dry place out of the charger for optimal
results.
NOTE: Battery packs should not be stored completely depleted of
charge. The battery pack will need to be recharged before use.
SAVE THESE INSTRUCTIONS
FOR FUTURE USE
COMPONENTS (Fig. 2)
WARNING: Never modify the power tool or any part of it. Damage
or personal injury could result.
A. Trigger switch H. Lower guard retracting lever
B. Trigger switch lock-off button I. Battery pack
C. Depth adjustment lever J. Sight window
D. Blade lock button K. Shoe
E. Kerf indicator L. Blade wrench
F. Blade clamping screw M. Battery release buttons
G. Lower guard
FIG. 2
A
B
D
C
E
M
D
E
F
H
I
G
J
L
K
M
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English
INTENDED USE
This metal cutting circular saw is intended for use by professionals for
cutting light gauge metals and small metal structural shapes.
DO NOT use under wet conditions or in presence of flammable liquids
or gases.
This metal cutting circular saw is a professional power tool. DO NOT
let children come into contact with the tool. Supervision is required
when inexperienced operators use this tool.
WARNING: Do not plunge cut or pocket cut with this saw.
Windows (Fig. 2)
WARNING: Do not operate the saw with a damaged or
missing sight window. If window is damaged or missing, have
the saw serviced at an authorized service center. If saw is operated
without the window, metal chips could fly through the guard and
cause personal injury.
CAUTION: Do not use oil or cutting fluids with the metal-
cutting saw. Do not use cleaning fluids to clean window.
Cleaning fluids, cutting fluids or oils could harm the plastic in the
window, interfering with the safe operation of the saw.
The saw is equipped with a sight window (J) on the side of the upper
guard. This window allows the user to see a cutting line on the material
to be cut.
Saw Shoe (Fig. 2)
The front of the saw shoe (K) has a kerf indicator (E) that allows the
operator to glide the saw along cutting lines. Aligning the cutting line
with the notch on the front of the shoe and centering it using the
modified V-shaped kerf indicator allows the operator to keep the
blade in line with the cutting line. If the cutting line is visible through
the narrowest part of the kerf indicator, the blade will pass directly over
the cutting line.
OPERATION
WARNING: To reduce the risk of injury, turn unit off and
disconnect it from power source before installing and removing
accessories, before adjusting or when making repairs. An
accidental start-up can cause injury.
Installing and Removing the Battery Pack
(Fig. 3)
NOTE: For best results, make sure your battery pack is fully charged.
To install the battery pack (I) into the tool handle, align the notch inside
the tool’s handle with the battery pack and slide the battery pack firmly
into the handle until you hear the lock snap into place as shown in
Figure 3.
FIG. 3
I
M
To remove the battery pack from the tool, press the release buttons (M)
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.
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English
Switch (Fig. 2)
The saw is controlled by a trigger switch (A) and lock off button (B).
The lock off button must be pressed before the trigger switch will turn
the saw on. Releasing the trigger turns the saw off.
NOTE: This tool has no provision to lock the switch on. The saw
should never be locked on by any means.
Changing Blades (Fig. 1, 4–6)
WARNING: To reduce the risk of injury, turn unit off and
disconnect it from power source before installing and removing
accessories, before adjusting or when making repairs. An
accidental start-up can cause injury.
TO INSTALL THE BLADE
O
FIG. 4
D
P
F
1. Place inner clamp washer
(O) on saw spindle with
the large flat surface
facing out toward the
blade (Fig.4, 5).
2. Retract the lower blade
guard (G) and place blade
on saw spindle against
the inner clamp washer
(O), making sure that the blade will rotate in the proper direction
(the direction of the rotation arrow on the saw blade and the teeth
must point in the same direction as the direction of rotation arrow
on the saw). Do not assume that the printing on the blade will
always be facing you when properly installed. When retracting the
lower blade guard to install the blade, check the condition and
operation of the lower blade guard to assure that it is working
properly. Make sure it moves freely and does not touch the blade
or any other part, in all angles and depths of cut.
FIG. 5
F
P
O
F
P
BLADE
O
SPINDLE
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English
3. Place outer clamp washer (P) on
FIG. 6
D
TIGHTEN
(counterclockwise)
LOOSEN
(clockwise)
saw spindle with the large flat
surface against the blade with
beveled side facing out.
4. Thread blade clamping screw (F)
into saw spindle by hand (screw
has left-hand threads and must
be turned counterclockwise to
tighten) (Fig. 6).
5. Depress the blade lock button
(D) while turning the saw spindle
with the blade wrench (L, Fig. 1)
until the blade lock engages and
the blade stops rotating.
6. Tighten the blade clamping screw firmly with the blade wrench.
NOTICE: Never engage the blade lock while saw is running, or
engage in an effort to stop the tool. Never turn the saw on while the
blade lock is engaged. Serious damage to your saw will result.
TO REPLACE THE BLADE
1. To loosen the blade clamping screw (F), depress the blade lock
button (D) and turn the saw spindle with the blade wrench until the
blade lock engages and the blade stops rotating. With the blade
lock engaged, turn the blade clamping screw clockwise with the
blade wrench (screw has left-hand threads and must be turned
clockwise to loosen).
2. Remove the blade clamping screw (F) and outer clamp washer (P)
only. Remove old blade.
3. Clean any metal chips/shavings that may have accumulated in
the guard or clamp washer area and check the condition and
operation of the lower blade guard as previously outlined. Do not
lubricate this area.
4. Select the proper blade for the application (see Blades). Always
use blades that are the correct size (diameter) with the proper size
and shape center hole for mounting on the saw spindle. Always
assure that the maximum recommended speed (rpm) on the saw
blade meets or exceeds the speed (rpm) of the saw.
5. Follow steps 2 through 6 under To Install the Blade, making sure
that the blade will rotate in the proper direction.
LOWER BLADE GUARD
WARNING: The lower blade guard is a safety feature which
reduces the risk of serious personal injury. Never use the saw
if the lower guard is missing, damaged, misassembled or not
working properly. Do not rely on the lower blade guard to protect
you under all circumstances. Your safety depends on following
all warnings and precautions as well as proper operation of
the saw. Check lower guard for proper closing before each
use as outlined in Additional Safety Rules for Circular Saws.
If the lower blade guard is missing or not working properly,
have the saw serviced before using. To assure product safety
and reliability, repair, maintenance and adjustment should be
performed by an authorized service center or other qualified
service organization, always using identical replacement parts.
WARNING: Under certain conditions of use, metal chips may
become imbedded in the surfaces of the lower guard, causing
the lower guard to rub against the upper guard. Check the
operation of the lower guard before each use and remove any
imbedded chips.
Blades
WARNING: To minimize the risk of eye injury, always use eye
protection. Carbide is a hard but brittle material. Foreign objects in
the workpiece such as wire or nails can cause tips to crack or break.
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English
Only operate saw when proper saw blade guard is in place. Mount
blade securely in proper rotation before using, and always use a
clean, sharp blade.
Blade Diameter Teeth Application
DWA7770 5-1/2" (140mm) 30 General purpose ferrous
metal cutting
If you need assistance regarding blades, please call 1-800-4-D
EWALT
(1-800-433-9258).
KICKBACK
Kickback is a sudden reaction to a pinched, bound or misaligned saw
blade, causing an uncontrolled saw to lift up and out of the workpiece
toward the operator. When the blade is pinched or bound tightly by the
kerf closing down, the blade stalls and the motor reaction drives the
unit rapidly back toward the operator. If the blade becomes twisted or
misaligned in the cut, the teeth at the back edge of the blade can dig
into the top surface of the material causing the blade to climb out of
the kerf and jump back toward the operator.
Kickback is more likely to occur when any of the following conditions
exists.
1. IMPROPER WORKPIECE SUPPORT
A. Sagging or improper lifting of the cut off piece can cause
pinching of the blade and lead to kickback (Fig. 9).
B. Cutting through material supported at the outer ends only can
cause kickback. As the material weakens it sags, closing down
the kerf and pinching the blade (Fig. 9).
C. Cutting off a cantilevered or overhanging piece of material from
the bottom up in a vertical direction can cause kickback. The
falling cut off piece can pinch the blade.
D. Cutting off long narrow strips can cause kickback. The cut off
strip can sag or twist closing the kerf and pinching the blade.
E. Snagging the lower guard on a surface below the material being
cut momentarily reduces operator control. The saw can lift
partially out of the cut increasing the chance of blade twist.
2. IMPROPER DEPTH OF CUT SETTING ON SAW
To make the most efficient cut, the blade should protrude only far
enough to expose a tooth as shown in Figure 8. This allows the
shoe to support the blade and minimizes twisting and pinching in
the material. See the section titled Cutting Depth Adjustment.
3. BLADE TWISTING (MISALIGNMENT IN CUT)
A. Pushing harder to cut can cause the blade to twist.
B. Trying to turn the saw in the cut (trying to get back on the
marked line) can cause blade twist.
C. Overreaching or operating the saw with poor body control (out
of balance), can result in twisting the blade.
D. Changing hand grip or body position while cutting can result in
blade twist.
E. Backing up the saw to clear blade can lead to twist.
4. USE OF DULL OR DIRTY BLADES
Dull blades cause increased loading of the saw. To compensate,
an operator will usually push harder which further loads the unit
and promotes twisting of the blade in the kerf. Worn blades may
also have insufficient body clearance which increases the chance
of binding and increased loading.
5. RESTARTING A CUT WITH THE BLADE TEETH JAMMED
AGAINST THE MATERIAL
The saw should be brought up to full operating speed before
starting a cut or restarting a cut after the unit has been stopped
with the blade in the kerf. Failure to do so can cause stalling and
kickback.
Any other conditions which could result in pinching, binding, twisting,
or misalignment of the blade could cause kickback. Refer to the
sections Further Safety Instructions for All Saws and Blades
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English
for procedures and techniques that will minimize the occurrence of
kickback.
Depth Adjustment (Fig. 7, 8)
WARNING: To reduce the risk of injury, turn unit off and
disconnect it from power source before installing and removing
accessories, before adjusting or when making repairs. An
accidental start-up can cause injury.
The metal cutting saw is equipped with a pivoting shoe that allows the
operator to set the depth of cut. For the most efficient cutting action,
set the depth adjustment so that one tooth of the blade projects below
the material to be cut. This distance is from the tip of the tooth to the
bottom of the gullet in front of the tooth. This keeps blade friction at a
minimum, removes metal chips from the cut, results in cooler, faster
sawing and reduces the chance of kickback.
FIG. 7
C
FIG. 8
TO SET THE DEPTH OF CUT
1. Lay the piece of material you plan to cut along the blade as shown.
2. Note how much tooth projects beyond the material.
3. Loosen the depth adjustment lever (C) and move the shoe to
change the depth of cut.
4. Retighten the depth adjustment lever securely.
Workpiece Support (Fig. 9)
CUTTING SHEETS OF METAL
Figure 9 shows the correct and incorrect way to support a large sheet.
To avoid kickback, support material near the cut. Do not support it
away from the cut. If material is supported away from the cut, it will
bind the blade and cause kickback. When cutting thin strips, keep
the blade at least 1/2" (approximately 13 mm) from the edge of the
material. Thin strips may bind, causing kickback and increasing the
risk of personal injury.
FIG. 9
1/2"
(13 mm)
CUTTING RECTANGULAR METAL STOCK
Clamp the material you plan to cut to a workbench or other work
surface as shown above.
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English
Cutting (Fig. 10, 11)
1. Hold the saw securely using both
FIG. 10
hands. Figure 10 shows
appropriate hand position. Keep
your body to one side of the line
along which you are cutting. This
will protect you from injury related
to kickback.
2. When cutting ends off of
rectangular metal stock, place
the widest part of the shoe on the part of the material that is
clamped to the workbench or other support, not on the part of the
material that will fall when the cut is made.
3. Depress the trigger switch and allow the saw to reach full speed
before the blade contacts the material to be cut (Fig. 11).
FIG. 11
4. Push the saw forward at a speed that allows the blade to cut
without laboring.
5. As you finish a cut, release the trigger and allow the blade to stop
before lifting the saw from the work. As you lift the saw, the guard
will automatically close under the blade.
CORRECTING A CUT
Should your cut begin to leave the cutting line, don’t try to force it
back on. Forcing a correction can stall the saw and cause kickback.
Instead, release the switch and allow the blade to come to a complete
stop. Then, back the saw out of the cut. Restart the saw and re-enter
the cut, following the desired cutting line.
WARNING: Do not stack materials for cutting. Do not cut through
bolts with the saw. Do not touch the blade, workpiece or metal chips
with your bare hand immediately after cutting—they are extremely
hot and may burn your skin.
Maximizing Blade Life
To extend blade life, follow these practices:
• Do not force the blade through the metal. The saw must cut at its
own pace and at a constant rate.
• Change blades when it is no longer easy to push the saw through
the cut, when the motor is straining, or when excessive heat is built
up in the blade.
• Keep base of the saw firmly against metal you are cutting.
• If the metal you are cutting is vibrating or shaking, clamp the
material as close to the cut as possible and slow down the cutting
rate.
MAINTENANCE
WARNING: To reduce the risk of injury, turn unit off and
disconnect it from power source before installing and removing
accessories, before adjusting or when making repairs. An
accidental start-up can cause injury.
Replacing Sight Window (Fig. 1)
WARNING: Do not operate the saw with a damaged or missing
sight window. If window is damaged or missing, have the saw
serviced at an authorized service center. If the saw is operated
without the window, metal chips could fly through the guard and
cause personal injury.
The sight window (J) must be replaced by an authorized D
EWALT
service center.
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English
Cleaning
WARNING: Blow dirt and dust out of all air vents with clean, dry air
at least once a week. To minimize the risk of eye injury, always wear
ANSI Z87.1 approved eye protection when performing this.
WARNING: Never use solvents or other harsh chemicals for
cleaning the non-metallic parts of the tool. These chemicals may
weaken the plastic materials used in these parts. Use a cloth
dampened only with water and mild soap. Never let any liquid get
inside the tool; never immerse any part of the tool into a liquid.
CAUTION: Do not use any cleaning fluids on the sight window to
avoid clouding it and compromising the safe operation of the saw.
Use compressed air to remove accumulated dust from the inside of
the sight window. Wear safety glasses when performing this.
CHARGER CLEANING INSTRUCTIONS
WARNING: Shock hazard. Disconnect the charger from the AC
outlet before cleaning. Dirt and grease may be removed from the
exterior of the charger using a cloth or soft non-metallic brush. Do
not use water or any cleaning solutions.
Lubrication
Self lubricating ball and roller bearings are used in the tool and
relubrication is not required. However, it is recommended that, once
a year, you take or send the tool to a certified service center for a
thorough cleaning, inspection, and lubrication of the gear case.
Accessories
WARNING: Since accessories, other than those offered by
D
EWALT, have not been tested with this product, use of such
accessories with this tool could be hazardous. To reduce the risk of
injury, only D
EWALT recommended accessories should be used with
this product.
Use only 5-1/2" (140 mm) D
EWALT metal cutting blades with a 20mm
arbor.
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, call
1-800-4-D
EWALT (1-800-433-9258) or visit our website: www.dewalt.
com.
Repairs
The charger and battery pack are not serviceable.
To assure product SAFETY and RELIABILITY, repairs, maintenance and
adjustment (including brush inspection and replacement) should be
performed by a D
EWALT factory service center, a DEWALT authorized
service center or other qualified service personnel. Always use
identical replacement parts.
Register Online
Thank you for your purchase. Register your product now for:
• WARRANTY SERVICE: Registering your product will help you
obtain more efficient warranty service in case there is a problem
with your product.
• CONFIRMATION OF OWNERSHIP: In case of an insurance
loss, such as fire, flood or theft, your registration of ownership will
serve as your proof of purchase.
• FOR YOUR SAFETY: Registering your product will allow us to
contact you in the unlikely event a safety notification is required
under the Federal Consumer Safety Act.
Register online at www.dewalt.com/register.
19
English
Three Year Limited Warranty
DEWALT will repair, without charge, any defects due to faulty materials
or workmanship for three years from the date of purchase. This
warranty does not cover part failure due to normal wear or tool abuse.
For further detail of warranty coverage and warranty repair information,
visit www.dewalt.com or call 1-800-4-D
EWALT (1-800-433-9258).
This warranty does not apply to accessories or damage caused where
repairs have been made or attempted by others. This warranty gives
you specific legal rights and you may have other rights which vary in
certain states or provinces.
In addition to the warranty, D
EWALT tools are covered by our:
1 YEAR FREE SERVICE
D
EWALT will maintain the tool and replace worn parts caused by
normal use, for free, any time during the first year after purchase.
2 YEARS FREE SERVICE ON D
EWALT BATTERY PACKS
DC9071, DC9091, DC9096, DC9280, DC9360, DC9180, DCB120,
DCB201 and DCB203
3 YEARS FREE SERVICE ON D
EWALT BATTERY PACKS
DCB200, DCB204
D
EWALT BATTERY PACKS
Product warranty voided if the battery pack is tampered with in any
way. D
EWALT is not responsible for any injury caused by tampering
and may prosecute warranty fraud to the fullest extent permitted by
law.
90 DAY MONEY BACK GUARANTEE
If you are not completely satisfied with the performance of your
DEWALT Power Tool, Laser, or Nailer for any reason, you can return it
within 90 days from the date of purchase with a receipt for a full refund
– no questions asked.
LATIN AMERICA: This warranty does not apply to products sold
in Latin America. For products sold in Latin America, see country
specific warranty information contained in the packaging, call the local
company or see website for warranty information.
FREE WARNING LABEL REPLACEMENT: If your warning labels
become illegible or are missing, call 1-800-4-D
EWALT (1-800-433-
9258) for a free replacement.
Français
20
Défi nitions: lignes directrices en
matière de sécurité
Les définitions ci-dessous décrivent le niveau de danger pour
chaque mot-indicateur employé. Lire le mode d’emploi et porter
une attention particulière à ces symboles.
DANGER: indique une situation dangereuse imminente qui,
si elle n’est pas évitée, entraînera la mort ou des blessures
graves.
AVERTISSEMENT : indique une situation potentiellement
dangereuse qui, si elle n’est pas évitée, pourrait entraîner la
mort ou des blessures graves.
ATTENTION : indique une situation potentiellement
dangereuse qui, si elle n’est pas évitée, pourrait entraîner des
blessures légères ou modérées.
AVIS : indique une pratique ne posant aucun risque de
dommages corporels mais qui par contre, si rien n’est fait
pour l’éviter, pourrait poser des risques de dommages
matériels.
POUR TOUTE QUESTION OU REMARQUE AU SUJET DE CET OUTIL
OU DE TOUT AUTRE OUTIL D
EWALT, COMPOSEZ LE NUMÉRO
SANS FRAIS : 1-800-4-D
EWALT (1-800-433-9258).
AVERTISSEMENT : afin de réduire le risque de blessures, lire
le mode d’emploi de l’outil.
Avertissements de sécurité généraux pour
les outils électriques
AVERTISSEMENT! lire tous les avertissements de
sécurité et toutes les directives. Le non-respect des
avertissements et des directives pourrait se solder par un
choc électrique, un incendie et/ou une blessure grave.
CONSERVER TOUS LES AVERTISSEMENTS
ET TOUTES LES DIRECTIVES POUR UN
USAGE ULTÉRIEUR
Le terme « outil électrique » cité dans les avertissements se rapporte
à votre outil électrique à alimentation sur secteur (avec fil) ou par piles
(sans fil).
1) SÉCURITÉ DU LIEU DE TRAVAIL
a) Tenir l’aire de travail propre et bien éclairée. Les lieux
encombrés ou sombres sont propices aux accidents.
b) Ne pas faire fonctionner d’outils électriques dans un
milieu déflagrant, tel qu’en présence de liquides, de
gaz ou de poussières inflammables. Les outils électriques
produisent des étincelles qui pourraient enflammer la poussière
ou les vapeurs.
c) Éloigner les enfants et les personnes à proximité pendant
l’utilisation d’un outil électrique. Une distraction pourrait en
faire perdre la maîtrise à l’utilisateur.
2) SÉCURITÉ EN MATIÈRE D’ÉLECTRICITÉ
a) Les fiches des outils électriques doivent correspondre
à la prise. Ne jamais modifier la fiche d’aucune façon.
Ne jamais utiliser de fiche d’adaptation avec un outil
électrique mis à la terre. Le risque de choc électrique sera
réduit par l’utilisation de fiches non modifiées correspondant à
la prise.
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