DeWALT DWE7491 ユーザーズマニュアル

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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
E
WALT TOOL, 
CALL US TOLL FREE AT: 1-800-4-D
E
WALT (1-800-433-9258).
 WARNING: To reduce the risk of injury, read the instruction manual.
General Safety Rules
WARNING:  Read all instructions before operating product. Failure to follow all 
instructions listed below may result in electric shock, fire and/or serious injury.
SAVE THESE INSTRUCTIONS
WARNING: FOLLOW ALL WIRING CODES and recommended electrical connections to 
prevent shock or electrocution.
Double Insulation
If saw is of double-insulated construction, read the following instructions.
This symbol 
 represents double insulated construction. Double insulated tools are 
constructed throughout with two separate layers of electrical insulation or one double 
thickness of insulation between you and the tool’s electrical system. Tools built with this 
insulation system are not intended to be grounded. As a result, your tool is equipped with a 
two prong plug which permits you to use extension cords without concern for maintaining a 
ground connection. Repair or replace damaged or worn cord immediately.
NOTE: Double insulation does not take the place of normal safety precautions when 
operating this tool. The insulation system is for added protection against injury resulting from 
a possible electrical insulation failure within the tool.
POLARIZED PLUGS
To reduce the risk of electric shock, this equipment has 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 into the outlet, reverse the plug. 
If it still does not fit, contact a qualified electrician to install the proper 
outlet. Do not change the plug in any way.
Important Safety Instructions
•  TO REDUCE THE RISK OF KICKBACK AND OTHER INJURIES, use all components 
of the guarding system (blade guard assembly, riving knife and anti-kickback) for every 
operation for which they can be used including all thru-cutting.
•  REMOVE ADJUSTING KEYS AND WRENCHES. Form habit of checking to see that 
keys and adjusting wrenches are removed from spindle before turning tool on. Tools, scrap 
pieces, and other debris can be thrown at high speed, causing injury.
•  KEEP WORK AREA CLEAN. Cluttered areas and benches invite accidents.
•  DO NOT USE THE MACHINE IN A DANGEROUS ENVIRONMENT. The use of power 
tools in damp or wet locations or in rain can cause shock or electrocution. Keep your work 
area well-lit to avoid tripping or placing arms, hands, and fingers in danger.
•  KEEP CHILDREN AWAY. All visitors should be kept at a safe distance from work area. 
Your shop is a potentially dangerous environment.
•  MAKE WORKSHOP CHILDPROOF with padlocks, master switches, or by removing 
starter keys. The unauthorized start-up of a machine by a child or visitor may result in 
injury.
•  DO NOT FORCE TOOL. It will do the job better and be safer at the rate for which it was 
designed.
•  USE THE RIGHT TOOL. Don’t force tool or attachment to do a job for which it was not 
designed. Using the incorrect tool or attachment may result in personal injury.
•  DO NOT OVERREACH. Keep proper footing and balance at all times. Loss of balance 
may cause personal injury. Do not attempt to retrieve materials near the blade on the saw 
table while the blade is spinning.
•  MAINTAIN TOOLS WITH CARE. Keep blades sharp and clean for best and safest 
performance. Follow instructions for lubricating and changing accessories. Poorly 
maintained blades and machines can further damage the blade or machine and/or 
cause injury.
•  USE PROPER EXTENSION CORD. Make sure your extension cord is in good 
condition. When using an extension cord, be sure to use one heavy enough to carry 
the current your product will draw. An undersized cord will cause a drop in line voltage 
resulting in loss of power and overheating.The following table shows the correct size to 
use depending on cord length and nameplate ampere rating. If in doubt, use the next 
heavier 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)
120 V
25 (7.6)
50 (15.2)
100 (30.5)
150 (45.7)
240 V
50 (15.2)
100 (30.5)
200 (61.0)
300 (91.4)
More
Than
Not More 
Than
AWG
0
6
18
16
16
14
6
10
18
16
14
12
10
12
16
16
14
12
12
16
14
12
Not Recommended
•  WEAR PROPER APPAREL. Do not wear loose clothing, gloves, neckties, rings, 
bracelets, or other jewelry which may get caught in moving parts. Nonslip footwear is 
recommended. Wear protective hair covering to contain long hair.
•  ALWAYS USE SAFETY GLASSES. Also use face or dust mask if cutting operation 
is dusty. Everyday eyeglasses only have impact resistant lenses, they are NOT safety 
glasses.
•  SECURE WORK. Use clamps to hold work when practical (such as when using a zero 
clearance insert/throat plate). It's safer than using your hand and it frees both hands to 
operate tool.
•  TURN THE MACHINE “OFF”, AND DISCONNECT THE MACHINE FROM THE 
POWER SOURCE before installing or removing accessories, before adjusting or 
changing set-ups, when making repairs or changing locations. Do not touch the plug’s 
metal prongs when unplugging or plugging in the cord. An accidental start-up can cause 
injury.