VERTO 51G091, Instruction Manual

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• Do not put the power tool aside, before the working tool comes to
complete stop. The rotating working tool may come in contact with a
surface, which it is put aside onto, and you may lose control over the tool.
• Do not carry the power tool, which is in motion. An accidental
contact with the rotating working tool may caught in your clothes
and drill into an operator’s body.
• Clean ventilation slots of the power tool on a regular basis. The
motor blower sucks dust into the casing, while large accumulation of
metal dust may cause electric hazard.
• Do not use the power tool near flammable materials. Sparks may
cause ignition.
• Do not use tools, which require liquid cooling agents. The use of
water or other cooling agents may cause electric shocks.
Recoil and proper safety guidelines
• Recoil is a sudden reaction of the power tool to seizure or blocking
of a rotating working tool, such a grinding wheel, cut-off wheel or a
wire brush, etc.
The seizure and blocking may suddenly stop a rotating working
tool. The power tool without control will be jerked in the opposite
direction to the working tool.
When the grinding wheel stops or catches in the workpiece, an
edge od the grinding wheel immersed in the workpiece may lock
and cause recoil or rejection. The movement of the grinding wheel
(towards or away from the operator) depends on the movement of
the grinding wheel in a place, where it is locked. The grinding wheels
may also break.
Recoil is a consequence of incorrect operation of the power tool. This
can be avoided by observing the following precautions.
• The power tool must be held firmly, while your body and hands
should be positioned to alleviate recoil. If the additional handle is
included as standard equipment, it should be used at all times to
provide the highest control over recoil forces or rejecting moment
during start-up.
An operator can take control of recoil and jerking by
taking proper precautions.
• Never hold your hands in the vicinity of rotating working tools. A
working tool may injure your hand as a result of recoil.
• Always stay away from the reach zone, in which the power tool
moves during recoil. As a result of recoil, the power tool moves in
the opposite direction to the movement of the grinding wheel, where
it locks.
• Corners, sharp edges, etc. should be worked with special attention.
Recoil or locking of the working tools should be prevented .
A rotating working tool is more prone to seizure, when working
angles, corners, sharp edges or when it is rebound. This may result in
loss of control or recoil.
• Do not use discs for wood or toothed discs. Working tools of this
type often cause recoil or loss of control over the working tool.
Special safety guidelines for grinding and cutting with the grinding
wheel.
• Always use the grinding wheel intended for a given power tool
and guard intended for a given grinding wheel. Grinding wheel
that are not part of equipment of a given power tool may be insufficiently
covered or safe.
• Offset grinding wheels should be fastened so that their grinding
surface does not protrude beyond the protective guard. Incorrectly
seated grinding wheel and protruding beyond the edge of the protective
guard may not be sufficiently covered.
• The guard must be secured to the power tool to ensure the highest
possible safety level and positioned so that the uncovered part of
the grinding wheel facing the operator is as small as possible.
The
guard protects the operator against chips, accidental contact with the
grinding wheel and sparks, which may set clothing on fire.
• Grinding wheels can only be used according to its purpose.
• The side surface of the grinding wheel should not be used for
cutting. Cut-off grinding wheels are designed for removal of material
with the disc edge. The influence of lateral forces on the grinding wheels
may break them.
• Undamaged fastening flanges of a correct size and shape should
always be used for a selected grinding wheel. Proper flanges
support the grinding wheel and reduce the risk of its breaking. Flanges for
cut-off wheels may differ from flanges designed for other grinding wheels.
• Do not use worn grinding wheels from larger power tools.
Grinding wheels for larger power tools are not designed for higher
rotational speed, which is specific to smaller power tools. Thus, such
grinding wheels may break.
Additional specific safety guidelines for cutting with a cut-off wheel
• Always prevent a cut-off wheel from seizure and avoid excessive
pressure. Do not make too deep cuts. The overload of a cut-off wheel
increases its load and tendency for seizure or locking, and thus may result
in recoil or breaking of a cut-off wheel.
• Avoid areas in front of and behind a rotating cut-off wheel. When
a cut-off wheel is moved onto a workpiece away from the operator, it may
cause the power tool to kick back as a result of recoil, with a rotating cut-
off wheel pointing directly towards the operator.
• When a cut-off wheel seizes or you take a break from work, switch
off the power tool and wait until it comes to a complete stop. Do
not attempt to remove a rotating cut-off wheel from a cutting
place, since it may cause recoil.
Find and eliminate a cause of seizure.
• Do not switch the power tool back on, if it is still sunk in a
workpiece. Before you continue to cut, a cut-off wheel must
reach its full rotational speed.
Otherwise, a cut-off wheel may catch, spring back from a workpiece and
cause recoil.
• Boards and large objects should be supported to reduce the risk
of recoil caused by a seized cut-off wheel. Large objects may bend
under their own weight. A workpiece should be supported from both
sides, both near the cut line and its edge.
• Special caution should be exercised, when holes are cut in a wall
or in confined spaces. As a cut-off wheel sinks into a workpiece, it may
cause the power tool to recoil, when it encounters a gas or water supply
line, power conductors or other objects.
Specific safety guidelines for sanding with sandpaper
• Do not use too large sheets of sandpaper. Always follow
guidelines of a manufacturer, when the size of a sandpaper is
selected.
Sandpaper protruding beyond a grinding disc may cause
injuries and result in locking and tearing of sandpaper, or recoil.
Specific safety guidelines for working with wire brushes
• It should always be remembered that pieces of wire are lost even
during normal use. Do not overload wires by putting excessive pressure.
Airborne pieces of wire may easily puncture thin clothing and/or skin.
• If a guard is recommended to be used, prevent a brush from
touching the guard. A brush diameter for plates and pots may increase
due to the pressure and centrifugal forces.
Additional safety guidelines
• Before connecting to the power source, always make sure the
supply voltage is compatible with the value specified on the
nameplate of the tool.
• Before the grinder is connected, always check the power cord. In
case of damage, have it repaired in an authorised workshop.
• Before all installation works, the plug should be taken out of the
receptacle.
• Grinding tools should be checked before each use. A grinding
tool must be correctly fastened and should rotate freely. As part
of the test, the tool should be switched on with no load for at least
one minute in a safe position. Do not use damaged or vibrating
grinding tools. Grinding tools should be round. Damaged
grinding tools may break and cause injuries.
• Once a grinding tool is installed and before the grinder is
switched on, check the grinding tool for correct installation and
free rotations, and whether it does not catch the guard.
• The spindle lock button can be activated, only when the grinder
spindle does not move.
• In case of tools adapted for fastening of grinding wheels with a
threaded opening, make sure the grinding wheel thread length is
suitable for the spindle thread length.
• Always secure the workpiece. It is always preferable to secure the
workpiece in a vice or other fastening tool than holding it in your
hand.
• If own weight of the workpiece does not guarantee a stable
position, it should be fastened.
• Do not touch cut-off and grinding wheels, before they cool down.
• Do not exert lateral pressure on the grinding or cut-off wheel.
Do not cut a workpiece of a thickness larger than the maximum
cutting depth of the cut-off wheel.
NOTE: The tools is intended for indoor works.
Despite using the construction, which is safe by design itself,
protection means and additional safety features, there is always a
residual risk of injuries during operation.