wolfpack 07021655 Manuel D'instructions page 13

MACHINE KICKBACK AND APPROPRIATE SAFETY MEASURES
Machine kickback is a sudden reaction resulting from a caught or blocked insertion tool, such as
a grinding or cutting disc, that is in rotation. Catching or blocking leads to an abrupt stoppage of
the rotating insertion tool. This will cause you to lose control of the insertion tool as it accelerates
against the rotational direction at the blocked point.
If, for instance, a grinding disc gets caught or blocked in the work piece, the edge of the grinding
disc that is grinding into the work piece can break off or cause a kickback. The grinding disc will
then move toward or away from the operator, according to the disc's rotational direction at the
blocked point. This may also cause the grinding disc to break.
A kickback is the result of an improper or erroneous use of the device. It can be prevented by
applying safety measures, as described in the following.
• Hold the device tightly and place your body and arms in a position that allows you absorb the
force of a kick-back. Always use the auxiliary handle, if one is provided, in order to have the
highest possible degree of control over the force of kickbacks or reaction torque at high rotational
speeds. With proper safety measures, the operator can control the force of kickbacks and torque.
• Never put your hands in the vicinity of rotating insertion tools. If a kickback occurs, the insertion
tool may come into contact with your hand.
• Avoid putting your body in the area where the device might be moved in the case of a kickback.
A kickback causes the device to be forced in the direction opposite to the movement of the
grinding disc against the block point.
• Exercise special care when working on corners and sharp edges. Where applicable, prevent
the insertion tool from recoiling and jamming. At corners, sharp edges or when recoiling, rotating
insertion tools have a tendency to jam. This causes a loss of control or a machine kickback.
• Do not use chain- or toothed saw blades. Such insertion tools often cause kickback or loss of
control over the device.
SPECIAL SAFETY GUIDELINES FOR GRINDING AND CUTTING
• Use only grinding tools that are approved for your device and protective covers intended for
these grinding tools. Grinding tools that are not intended for the device cannot be adequately
shielded and are unsafe.
• The protective cover must be fastened securely to the device and adjusted so that a maximum
degree of safety can be provided, i.e. the smallest possible part of the grinding tool should be
left open to the operator. The protective cover is meant to protect the operator from shards and
accidental contact with the grinding tool.
• Offset grinding wheels must be mounted in such a way that their grinding areas do not protrude
over the edge of the protective covers. Improperly mounted grinding wheels that project over the
• Grinding tools are only to be used for the recommended usages.For example: Never grind with
the lateral surface of a cutting disc. Cutting discs are intended for material removal with the edge
of the disc. Lateral application of force to the grinding tool can break it.
• Do not use grinding discs from larger electrical devices. Grinding discs for larger devices are
not designed for the higher rotational speeds of smaller devices and may break.
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