DeWalt DWE4100 Manual De Instrucciones página 6

English
Safety Warnings Specific for Grinding and Abrasive
Cutting-Off Operations
a ) Use only wheel types that are recommended for
your power tool and the specific guard designed for the
selected wheel. Wheels for which the power tool was not
designed cannot be adequately guarded and are unsafe.
b ) The grinding surface of center depressed wheels
must be mounted below the plane of the guard lip. An
improperly mounted wheel that projects through the plane of
the guard lip cannot be adequately protected.
c ) The guard must be securely attached to the power
tool and positioned for maximum safety, so the least
amount of wheel is exposed towards the operator.
The guard helps to protect the operator from broken wheel
fragments, accidental contact with wheel and sparks that
could ignite clothing.
d ) Wheels must be used only for recommended
applications. For example: do not grind with the side
of cut-off wheel. Abrasive cut‑off wheels are intended for
peripheral grinding, side forces applied to these wheels may
cause them to shatter.
e ) Always use undamaged wheel flanges that are of
correct size and shape for your selected wheel. Proper
wheel flanges support the wheel thus reducing the
possibility of wheel breakage. Flanges for cut‑off wheels
may be different from grinding wheel flanges.
f ) Do not use worn down wheels from larger power
tools. Wheel intended for larger power tool is not suitable for
the higher speed of a smaller tool and may burst.
Additional Safety Warnings Specific for Abrasive
Cutting-Off Operations
a ) Do not "jam" the cut-off wheel or apply excessive
pressure. Do not attempt to make an excessive depth
of cut. Overstressing the wheel increases the loading and
susceptibility to twisting or binding of the wheel in the cut and
the possibility of kickback or wheel breakage.
b ) Do not position your body in line with and behind
the rotating wheel. When the wheel, at the point of
operation, is moving away from your body, the possible
kickback may propel the spinning wheel and the power tool
directly at you.
c ) When wheel is binding or when interrupting a cut
for any reason, switch off the power tool and hold
the power tool motionless until the wheel comes to
a complete stop. Never attempt to remove the cut-
off wheel from the cut while the wheel is in motion
otherwise kickback may occur. Investigate and take
corrective action to eliminate the cause of wheel binding.
d ) Do not restart the cutting operation in the
workpiece. Let the wheel reach full speed and carefully
reenter the cut. The wheel may bind, walk up or kickback if
the power tool is restarted in the workpiece.
e ) Support panels or any oversized workpiece to
minimize the risk of wheel pinching and kickback. Large
workpieces tend to sag under their own weight. Supports
must be placed under the workpiece near the line of cut and
near the edge of the workpiece on both sides of the wheel.
f ) Use extra caution when making a "pocket cut" into
existing walls or other blind areas. The protruding wheel
may cut gas or water pipes, electrical wiring or objects that
can cause kickback.
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Safety Warnings Specific for Sanding Operations
a ) Do not use excessively oversized sanding disc
paper. Follow manufacturer's recommendations when
selecting sanding paper. Larger sanding paper extending
beyond the sanding pad presents a laceration hazard and
may cause snagging, tearing of the disc or kickback.
Safety Warnings Specific for Polishing Operations:
a ) Do not allow any loose portion of the polishing
bonnet or its attachment strings to spin freely. Tuck
away or trim any loose attachment strings. Loose and
spinning attachment strings can entangle your fingers or snag
on the workpiece.
Safety Warnings Specific for Wire Brushing
Operations
a ) Be aware that wire bristles are thrown by the brush
even during ordinary operation. Do not overstress the
wires by applying excessive load to the brush. The wire
bristles can easily penetrate light clothing and/or skin.
b ) If the use of a guard is recommended for wire
brushing, do not allow any interference of the wire
wheel or brush with the guard. Wire wheel or brush may
expand in diameter due to work load and centrifugal forces.
c ) Safety goggles or safety glasses with side shields
and a full face shield compliant with ANSI Z87.1 MUST
be worn by the operator and others that are within 50'
(15.2 m) of the use of this product.
Additional Safety Rules for Grinders

WARNING: The grinding wheel or accessory may
loosen during coast-down of the tool when shut off. If
grinding wheel or accessory loosens, it may dismount from
the machine and may cause serious personal injury.
• Use of accessories not specified in this manual is not
recommended and may be hazardous. Use of power
boosters that would cause the tool to be driven at speeds
greater than its rated speed constitutes misuse.
• 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.
• Avoid bouncing the wheel or giving it rough
treatment. If this occurs, stop the tool and inspect the wheel
for cracks or flaws.
• Never cut into area that may contain electrical wiring
or piping. Serious injury may result.
• Do not operate this tool for long periods of time.
Vibration caused by the operating action of this tool may
cause permanent injury to fingers, hands, and arms. Use
gloves to provide extra cushion, take frequent rest periods, and
limit daily time of use.
• Do not use Type 11 (flaring cup) wheels on this tool.
Using inappropriate accessories can result in injury.
• Always use side handle. Tighten the handle securely.
The side handle should always be used to maintain control of
the tool at all times.
• Air vents often cover moving parts and should be
avoided. Loose clothes, jewelry or long hair can be caught in
moving parts.
• 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