Electrical Connection - DeWalt DWS780LST Instruction Manual

• CLEAN THE MOTOR AIR SLOTS of chips and sawdust. Clogged motor air slots can
cause the machine to overheat, damaging the machine and possibly causing a short which
could cause serious injury.
• KEEP ARMS, HANDS, AND FINGERS AWAY FROM THE BLADE to prevent severe
cuts. Clamp all workpieces that would cause your hand to be within 6" (152 mm) of the
saw blade.
• NEVER LOCK THE SWITCH IN THE "ON" POSITION. Severe personal injury may
result.
• TURN OFF THE MACHINE and allow the blade to come to a complete stop before
raising the arm and prior to cleaning the blade area, removing debris in the path of the
blade, before servicing or adjusting tool. A moving blade can cause serious injury.
• PROPERLY SUPPORT LONG OR WIDE WORKPIECES. Loss of control of the
workpiece can cause injury.
• NEVER CROSS ARMS IN FRONT OF BLADE while using tool. Always make a dry run
(unpowered) before making a finish cut so that you can check the path of the blade or
severe personal injury may result.
• ADDITIONAL INFORMATION regarding the safe and proper operation of power tools
(i.e., a safety video) is available from the Power Tool Institute, 1300 Sumner Avenue,
Cleveland, OH 44115-2851 (www.powertoolinstitute.com). Information is also available
from the National Safety Council, 1121 Spring Lake Drive, Itasca, IL 60143-3201. Please
refer to the American National Standards Institute ANSI 01.1 Safety Requirements for
Woodworking Machines and the U.S. Department of Labor OSHA 1910.213 Regulations.
WARNING: Do not connect unit to electrical power source until complete instructions are
read and understood.
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.
WARNING: NEVER MAKE ANY CUT UNLESS THE MATERIAL IS SECURED ON THE
TABLE AND AGAINST THE FENCE.
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.
For your convenience and safety, the following warning labels are on your miter saw.
ON MOTOR HOUSING:
WARNING: FOR YOUR OWN SAFETY, READ INSTRUCTION MANUAL BEFORE
OPERATING MITER SAW.
WHEN SERVICING, USE ONLY IDENTICAL RE PLACE MENT PARTS.
DO NOT EXPOSE TO RAIN OR USE IN DAMP LOCATIONS.
ALWAYS USE PROPER EYE AND RESPIRATORY PROTECTION.
ON MOVING FENCES:
ALWAYS ADJUST FENCE
PROPERLY BEFORE USE. CLAMP
SMALL PIECES BEFORE CUTTING.
SEE MANUAL.
ON GUARD:
DANGER–KEEP AWAY FROM BLADE.
ON UPPER GUARD:
PROPERLY SECURE BRACKET WITH BOTH SCREWS BEFORE
USE.
ON TABLE: (2 PLACES)
WARNING: FOR YOUR OWN SAFETY, READ INSTRUCTION
MANUAL BEFORE OPERATING MITER SAW. KEEP HANDS
OUT OF PATH OF SAW BLADE. DO NOT OPERATE SAW
WITHOUT GUARDS IN PLACE. CHECK LOWER GUARD FOR
PROPER CLOSING BEFORE EACH USE. ALWAYS TIGHTEN
ADJUSTMENT KNOBS BEFORE USE. DO NOT PERFORM ANY
OPERATION FREEHAND. NEVER REACH IN BACK OF SAW BLADE. NEVER
CROSS ARMS IN FRONT OF BLADE. TURN OFF TOOL AND WAIT FOR SAW
BLADE TO STOP BEFORE MOVING WORKPIECE, CHANGING SETTINGS OR
MOVING HANDS. DISCONNECT POWER BEFORE CHANGING BLADE OR
SERVICING. TO REDUCE THE RISK OF INJURY, RETURN CARRIAGE TO THE
FULL REAR POSITION AFTER EACH CROSSCUT OPERATION. THINK! YOU CAN
PREVENT ACCIDENTS.
ON BASE: (2 PLACES)

Electrical Connection

Be sure your power supply agrees with the nameplate marking. 120 volts, AC means that your
saw will operate on alternating current. The switch is susceptible to failure if direct current is
used. A voltage decrease of 10 percent or more will cause a loss of power and overheating.
All D WALT tools are factory tested. If this tool does not operate, check the power supply.
e
Accessories
WARNING: Since accessories, other than those offered by D
with this product, use of such accessories with this tool could be hazardous. To reduce the
risk of injury, only D WALT recommended accessories should be used with this product.
e
Recommended accessories for use with your tool are available for purchase from your local
dealer or authorized service center. If you need assistance in locating any accessory for your
tool, please contact D WALT Industrial Tool Co., 701 East Joppa Road, Towson, MD 21286,
e
call 1-800-4-D WALT (1-800-433-9258) or visit our website: www.dewalt.com.
e
Optional Accessories (Fig. 1)
The following accessories, designed for your saw, may be helpful. In some cases, other locally
obtained work supports, length stops, clamps, etc., may be more appropriate. Use care in
selecting and using accessories.
3
WALT, have not been tested
e