Kickback And Related Warnings - DeWalt D28730 Manual De Instrucciones

work to be performed. Use of the power tool for
operations different from those intended could result
in a hazardous situation.
h ) Keep handles and grasping surfaces dry, clean
and free from oil and grease. Slippery handles and
grasping surfaces do not allow for safe handling and
control of the tool in unexpected situations.
5) 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 Cut-Off Machines
1) Cut-Off Machine Safety Warnings
a ) Position yourself and bystanders away from the
plane of the rotating wheel. The guard helps to
protect the operator from broken wheel fragments
and accidental contact with wheel.
b ) Use only bonded reinforced cut-off wheels for
your power tool. Just because an accessory can
be attached to your power tool, it does not assure
safe operation.
c ) The rated speed of the accessory must be at least
equal to the maximum speed marked on the
power tool. Accessories running faster than their
rated speed can break and fly apart.
d ) Wheels must be used only for recommended
applications. For example: do not grind with the
side of a 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 diameter for your selected wheel. Proper
wheel flanges support the wheel thus reducing the
possibility of wheel breakage.
f ) The outside diameter and the thickness of your
accessory must be within the capacity rating of
your power tool. Incorrectly sized accessories cannot
be adequately guarded or controlled.
g ) The arbor size of wheels and flanges must
properly fit the spindle of the power tool. Wheels
and flanges with arbor holes that do not match the
mounting hardware of the power tool will run out
of balance, vibrate excessively and may cause loss
of control.
h ) Do not use damaged wheels. Before each use,
inspect the wheels for chips and cracks. If the
power tool or wheel is dropped, inspect for
damage or install an undamaged wheel. After
inspecting and installing the wheel, position
yourself and bystanders away from the plane
of the rotating wheel and run the power tool
at maximum no load speed for one minute.
Damaged wheels will normally break apart during
this test time.
i ) Wear personal protective equipment. Depending
on application, use face shield, safety goggles
or safety glasses. As appropriate, wear dust
mask, hearing protectors, gloves and shop
apron capable of stopping small abrasive or
workpiece fragments. The eye protection must
be capable of stopping flying debris generated by
various operations. The dust mask or respirator must
be capable of filtrating particles generated by your
operation. Prolonged exposure to high intensity noise
may cause hearing loss.
j ) Keep bystanders a safe distance away from
work area. Anyone entering the work area must
wear personal protective equipment. Fragments
of workpiece or of a broken wheel may fly away and
cause injury beyond immediate area of operation.
k ) Position the cord clear of the spinning accessory.
If you lose control, the cord may be cut or snagged
and your hand or arm may be pulled into the
spinning wheel.
l ) Regularly clean the power tool's air vents. The
motor's fan can draw the dust inside the housing and
excessive accumulation of powdered metal may cause
electrical hazards.
m ) Do not operate the power tool near flammable
materials. Do not operate the power tool while
placed on a combustible surface such as wood.
Sparks could ignite these materials.
n ) Do not use accessories that require liquid
coolants. Using water or other liquid coolants may
result in electrocution or shock.
o ) Check damaged parts. Before further use of the
tool, a guard or other part that is damaged should
be carefully checked to determine that it will operate
properly and perform its intended function—check
for alignment of moving parts, binding of moving
parts, breakage of parts, mounting, and any other
conditions that may affect its operation. A guard
or other part that is damaged should be properly
repaired or replaced.

2) Kickback and Related Warnings

Kickback is a sudden reaction to a pinched or snagged
rotating wheel. Pinching or snagging causes rapid stalling
of the rotating wheel which in turn causes the uncontrolled
cutting unit to be forced upwards toward the operator.
For example, if an abrasive wheel is snagged or pinched
by the workpiece, the edge of the wheel that is entering
into the pinch point can dig into the surface of the material
causing the wheel to climb out or kick out. Abrasive wheels
may also break under these conditions.
Kickback is the result of power tool misuse and/or incorrect
operating procedures or conditions and can be avoided by
taking proper precautions as given below.
a ) Maintain a firm grip on the power tool and
position your body and arm to allow you to resist
kickback forces. The operator can control upward
kickback forces, if proper precautions are taken.
b ) Do not position your body in line with the
rotating wheel. If kickback occurs, it will propel the
cutting unit upwards toward the operator.
c ) Do not attach a saw chain, woodcarving blade,
segmented diamond wheel or toothed saw
blade. Such blades create frequent kickback and loss
of control.
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