D
WALT Industrial Tool Co., 701 Joppa Road, Baltimore, MD 21286
E
(JUN10)
Part No. N073473
The following are trademarks for one or more D
"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.
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
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 instructions Failure to follow the warnings
and instructions may result in electric shock, fire and/or serious injury.
SAVE THESE INSTRUCTIONS
WORK AREA
• Keep your work area clean and well lit. Cluttered benches and dark areas invite
accidents.
• Do not operate power tools in explosive atmospheres, such as in the presence of
flammable liquids, gases, or dust. Power tools create sparks which may ignite the dust or
fumes.
• Keep bystanders, children, and visitors away while operating a power tool. Distractions
can cause you to lose control.
ELECTRICAL SAFETY
• Double insulated tools are equipped with a polarized plug (one blade is wider than the
other.) This plug will fit in a polarized outlet only one way. If the plug does not fit fully
in the outlet, reverse the plug. If it still does not fit, contact a qualified electrician to
install a polarized outlet. Do not change the plug in any way. Double insulation
eliminates the need for the three wire grounded power cord and grounded power supply
system.
• Avoid body contact with grounded surfaces such as pipes, radiators, ranges and
refrigerators. There is an increased risk of electric shock if your body is grounded.
• Don't expose power tools to rain or wet conditions. Water entering a power tool will
increase the risk of electric shock.
• Do not abuse the cord. Never use the cord to carry the tools or pull the plug from an
outlet. Keep cord away from heat, oil, sharp edges or moving parts. Replace damaged
cords immediately. Damaged cords increase the risk of electric shock.
• When operating a power tool outside, use an outdoor extension cord marked "W-A"
or "W." These cords are rated for outdoor use and reduce the risk of electric shock. 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.
Minimum Gauge for Cord Sets
Volts
Ampere Rating
120V
240V
MoreThan Not More Than
0
6
6
10
10
12
12
16
DWC860W
Copyright © 2010 D
WALT power tools: the yellow and black color scheme; the
E
WALT (1-800-433-9258).
E
Total Length of Cord in Feet (meters)
25 (7.6)
50 (15.2)
100 (30.5) 150 (45.7)
50 (15.2) 100 (30.5) 200 (61.0) 300 (91.4)
AWG
18
16
16
18
16
14
16
16
14
14
12
Not Recommended
PERSONAL SAFETY
• Stay alert, watch what you are doing and use common sense when operating a power
tool. Do not use tool while tired or under the influence of drugs, alcohol, or medication.
A moment of inattention while operating power tools may result in serious personal injury.
• Dress properly. Do not wear loose clothing or jewelry. Contain long hair. Keep your hair,
clothing, and gloves away from moving parts. Loose clothing, jewelry, or long hair can be
caught in moving parts. Air vents often cover moving parts and should also be avoided.
• Avoid accidental starting. Be sure switch is off before plugging in. Carrying tools with
your finger on the switch or plugging in tools that have the switch on invites accidents.
• Remove adjusting keys or wrenches before turning the tool on. A wrench or a key that
is left attached to a rotating part of the tool may result in personal injury.
• Do not overreach. Keep proper footing and balance at all times. Proper footing and
balance enables better control of the tool in unexpected situations.
• Use safety equipment. Always wear eye protection. Dust mask, non-skid safety shoes,
hard hat, or hearing protection must be used for appropriate conditions.
TOOL USE AND CARE
• 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.
• Do not force tool. Use the correct tool for your application. The correct tool will do the job
better and safer at the rate for which it is designed.
• Do not use tool if switch does not turn it on or off. Any tool that cannot be controlled with
the switch is dangerous and must be repaired.
• Disconnect the plug from the power source before making any adjustments, changing
accessories, or storing the tool. Such preventative safety measures reduce the risk of
starting the tool accidentally.
• Store idle tools out of reach of children and other untrained persons. Tools are
dangerous in the hands of untrained users.
• Maintain tools with care. Keep cutting tools sharp and clean. Properly maintained tools,
with sharp cutting edges are less likely to bind and are easier to control.
• Check for misalignment or binding of moving parts, breakage of parts, and any other
condition that may affect the tool's operation. If damaged, have the tool serviced before
using. Many accidents are caused by poorly maintained tools.
• Use only accessories that are recommended by the manufacturer for your model.
Accessories that may be suitable for one tool, may become hazardous when used on
another tool.
SERVICE
• Tool service must be performed only by qualified repair personnel. Service or
maintenance performed by unqualified personnel could result in a risk of injury.
• When servicing a tool, use only identical replacement parts. Follow instructions in
the Maintenance section of this manual. Use of unauthorized parts or failure to follow
maintenance instructions may create a risk of electric shock or injury.
Additional Specifi c Safety Instructions for Masonry Saws
• DANGER! Keep hands away from cutting area and 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.
• Do not reach underneath the workpiece. The guard cannot protect you from the blade
below the workpiece
• 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.
• Hold tool 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 also
make exposed metal parts of the power tool "live" and shock the operator.
WALT
E
• 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.
• 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.
• Keep your body positioned to either side of the blade, but not in line with the saw
blade.
• Blades coast after turn off. Serious personal injury may result.
• Don't unplug if plug or receptacle is wet. Disconnect the fuse or circuit breaker that supplies
power to the tool. Then unplug and examine for presence of water in the receptacle.
• Wait for the saw to come to a complete stop. 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.
• Do not use to cut wood or metal.
• Never use toothed blades. This tool is not equipped with a
lower guard.
DANGER: Keep hands away from cutting area and blade.
Personal injury may result.
WALT TOOL,
E
WARNING: Always plug extension cord into a GFCI protected outlet.
WARNING: To reduce the risk of electrocution, keep all connections
dry and off the ground. Do not touch plug with wet hands.
WARNING: A Ground Fault Circuit Interrupter (GFCI) is provided on the cord set. Receptacles
are available having built in GFCI protection and may be used for an added measure of safety.
When using an extension cord, always plug into a GFCI protected receptacle or outlet.
WARNING: Test GFCI before each use:
1. Plug GFCI into power outlet. Indicator should turn red.
2. Press test button. Red indicator should disappear.
3. Press reset button for use. Do not use if above test fails.
WARNING: Never use saw with salt water or a conductive fluid.
WARNING: DO NOT use wet cutting when using bonded abrasive blades. Wheel rupture and
personal injury may result.
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other
construction activities contains chemicals known in 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 (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.
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. Always
operate tool in well-ventilated area and provide for proper dust removal. Use dust collection
system wherever possible.
WARNING: ALWAYS wear proper personal hearing protection during use. Under some
conditions and duration of use, noise from this product may contribute to hearing loss.
WARNING: ALWAYS use eye protection. All users and bystanders must wear eye
protection that conforms to ANSI Z87.1.
• 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)
14
................. Class II Construction
12
.....................
(double insulated)
12
BPM ............. beats per minute
RPM ............. revolutions per minute
A ....................amperes
W ...................watts
..................alternating current
..................alternating or direct current
n o ..................no load speed
...................earthing terminal
..................safety alert symbol
.../min ............per minute
IPM ................impacts per minute