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After operating the grinder
• Make sure the tool is switched off before
WARNING
checking, adjusting or changing the disc.
• Do not operate the tool while carrying it at your side.
DANGER
• Sparks caused by grinding can be a hazard if
proper measures are not taken. Ensure that they do not come into
contact with skin or flammable substances.
• Gradually clean the tool vents. The motor fan directs dust into the
housing and excessive accumulation of metal dust can cause an
electrical hazard.
• Do not use accessories that require liquid coolants. Use of water
or other liquid coolants may result in electrical shock.
Kickback
DANGER
Kickback (abrupt backlash) is a sudden reaction
when a spinning disc, backrest, brush or any other accessory gets
caught or snagged. Jamming or snagging causes rapid stalling of
the rotating accessory which in turn causes the power tool to force
itself in an uncontrolled manner in the opposite direction of the
accessory's rotation at the point of work.
An abrasive disc jams or snags on the workpiece, of the material
causing the disc to stop, creating kickback The disc may break and
fragments may jump in the direction of or away from the operator
depending on the direction of disc movement at the point of binding.
Kickback can occur as a result of misuse of power tools and/or
improper operating procedures or unsuitable conditions and can
be avoided by taking the precautions outlined below:
a) Maintain a firm grip on the power tool, keeping your body and
arm so that it can resist kickback forces. Always use the auxiliary
handle; if provided, for maximum control over kickback or torque
reaction of the motor during start-up.
Torsional momentum and kickback forces can be controlled by the
operator if proper precautions are taken;
b) Never place your hand near the rotating accessory.
The accessories can kickback on the hand;
c) Do not place your body in the area where the power tool may
move if kickback occurs.
This propels the power tool in the opposite direction of the blade
movement at the point of engagement or jamming;
d) Take special care when working around corners, sharp edges,
among others. Avoid bouncing and jamming of the accessory.
When working around corners, sharp edges or a bounce can cause
the accessory to bind and cause loss of control of the power tool or
kickback of the power tool.
6
ENGLISH
Safety warnings for the use
of cordless grinders
Specific safety precautions for grinding
operations
a) Use only types of discs that are recommended for the power
tool and the specific guard that is designed for the selected disc.
Discs that are not designed for the power tool cannot be properly
guarded and are unsafe;
b) The grinding surface of discs with a sunken center should be
installed below the plane of the guard.
An improperly installed disc can project burrs out of the plane of the
guard and cannot be adequately protected;
c) The guard should be securely fastened to the power tool and
positioned to provide maximum safety so that the least amount
of the disc is exposed to the operator.
d) Discs should be used only for their recommended
applications. For example: do not grind with the side of an
abrasive cut-off disc.
Abrasive discs are used for peripheral grinding, if lateral forces are
applied, they may break.
e) Always use flanges in perfect condition, of the correct size
according to the shape of the selected disc.
A flange with the correct characteristics supports the disc, which
reduces the possibility of disc breakage. Flanges for cutting discs
may be different from flanges for grinding discs.
f) Do not use worn discs from larger or higher capacity tools.
Discs that are designed for larger or higher capacity tools are not
suitable for the increased speed that occurs in the operation of a
smaller size or capacity tool and may defragment.
Safety for abrasive cutting operations
a) Avoid jamming or applying excessive pressure to the abrasive
cut-off disc. Do not attempt to make an excessively deep cut.
Applying excessive force to the disc increases the load on the power
tool and susceptibility to deformation in the cutting zone and
increases the possibility of kickback (kickback) or disc breakage.
b) Do not position your body in line with and behind the
rotating blade.
When the blade, at the point of operation is aligned with your body,
the possibility of kickback can propel the rotating blade and the
power tool directly against you.
c) When blade operation is interrupted or cutting stops for any
reason, turn the power tool off and hold it stationary until the
blade comes to a complete stop. Do not attempt to remove the
cut-off disc while it is moving otherwise kickback or similar
effect may occur.
Investigate and take corrective action to eliminate the cause of the
spinning interruption;
d) Do not restart the cutting operation on the workpiece. Allow
the disc to reach full speed off the workpiece and cautiously
restart cutting.
The abrasive cut-off disc may jam, move upward or produce
kickback if cutting is restarted on the workpiece;
e) Support large workpieces on presses or clamping supports to
reduce the risk of jamming the abrasive cut-off disc or kickback.
Large workpieces tend to sink under their own weight. Supports
should be placed under the workpiece close to the cutting line and
close to the edge of the workpiece on both sides of the abrasive
cut-off disc.
f) Use caution when making a "very small cut" on walls or other
blind areas or where there is no visibility of internal
components.
The protruding abrasive cut-off disc may cut gas or water pipes,
electrical wiring or objects that can cause kickback.
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