49
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.
• 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.
5.5 Special safety instructions
• Check that the maximum speed indicated on
the grinding disc corresponds to the maxi-
mum speed of the machine. The speed of the
machine must not exceed the value on the
grinding disc.
• Make sure that the dimensions of the grin
-
ding disc correspond to the specifications of
the machine.
• Make sure that the grinding disc has been
mounted and fastened properly. Do not use
reducing rings or adapters to make the grin-
ding disc fit properly.
• Treat and store grinding discs in confor
-
mance with the supplier’s instructions.
• Do not use the machine for grinding work
-
pieces with a maximum thickness exceeding
the maximum grinding depth of the grinding
disc.
• Do not use grinding discs for deburring.
• When grinding discs have to be mounted on
the thread of the spindle, make sure that the
spindle has sufficient thread. Make sure that
the spindle is sufficiently protected and does
not touch the grinding surface.
• Before use, inspect the grinding disc for any
damage. Do not use grinding discs which are
crack-ed, ripped or otherwise damaged.
• Before use, let the machine run idle for 30
seconds. Immediately switch off the machine
in case of abnormal vibrations or occur-
rence of another defect. Carefully inspect the
machine and grinding disc before switching
the machine on again.
• Make sure that sparks do not put people into
danger or that they contact highly flammable
substances.
• Make sure that the workpiece is sufficiently
supported or clamped. Keep your hands away
from the surface to be cut.
• Always wear safety goggles and hearing pro
-
tection. If desired or required also use another
kind of protection like for example an apron
or helmet.
• Ensure that mounted wheels and points are
fitted in accordance with the manufacturer’s
instructions.
• Ensure that blotters are used when they are
provided with the bonded abrasive product
and when they are required.
• If a guard is supplied with the tool never use
the tool without such a guard.
• For tools intended to be fitted with threaded
hole wheel, ensure that the thread in the
wheel is long enough to accept the spindle
length.
• Ensure that ventilation openings are kept
clear when working in dusty conditions. If it
should become nessesary to clear dust, first
disconnect the tool from the mains supply
(use non metallic objects) and avoid dama-
ging internal parts.
• Though poor conditions of the electrical
mains, shortly voltage drops can appear when
starting the equipment. This can influence
other equipment (eq. blinking of a lamp). If
the mains-impedance Zmax <0.348 Ohm,
such disturbances are not expected. (In case
of need, you may contact your local supply
authority for further information.
5.6 Electrical safety
When using electric machines always obser-
ve the safety regulations applicable in your
country to reduce the risk of fire, electric
shock and personal injury. Read the following
safety instructions and also the enclosed safety
instructions.