GRAPHITE 59G063 Instrucciones De Uso página 23

The cutting depth depends on a wheel diameter (fig. G).
• Only wheels with nominal diameters not larger than recommended for a given grinder model should be
used.
• Do not allow the fastening flanges to contact a workpiece in case of deep cuts (e.g. sections, building
blocks, bricks, etc.).
Cut-off wheels reach high temperatures during operation. It cannot be touched with uncovered
body parts, before they cool down.
GRINDING
Grinding wheel, cup-type grinding wheels, flap wheels, wheels with abrasive fibre, wire brushes and flexible
discs, etc. should be used for grinding. Each type of discs and workpiece requires proper working method
and personal protective equipment.
Cut-off wheels should not be used for grinding.
Grinding discs are intended for removal of material with an edge of the disc.
• Do not use the lateral surface for grinding. The optimum working angle for this disc type is 30° (fig. H).
• Works related to grinding can be performed only, when proper grinding discs are used for a given
workpiece.
When flap wheels, discs with abrasive fibre and flexible discs for sandpaper are used, attention
should be paid to the proper tool angle (fig. I).
• Do not grind with the entire surface of a wheel.
• This disc type should be used for working flat surfaces.
Wire brushes are mainly used for cleaning sections and hard-to-reach spaces. They can be used to
remove rust, painting coats, etc. from a workpiece surface (fig. K).
Only such working tools can be used, whose permissible rotational speed is higher or equal to the
maximum no load speed of the grinder.
Before any operations related to installation, adjustment, repairs or maintenance are commenced,
the plug of the power cord should be disconnected from the socket.
MAINTENANCE AND STORAGE
• It is recommended to clean the tool after each use.
• Do not use water or other fluids for cleaning.
• The tool should be cleaned with a dry piece of cloth or blown with compressed air of low pressure.
• Do not use any cleaning agents or solvents, since they may damage plastic parts.
• Venting slots in the motor housing should be cleaned on a regular basis not to overload the tool.
• When the power cord is damaged, it should be replaced with the power cord of the same parameters. It
should be performed by a qualified professional or the tool should be delivered to an authorised service
shop.
• When the commutator sparks excessively, have the condition of motor carbon brushes checked by a
qualified person.
• The tool should be always stored in a dry place and out of reach of children.
REPLACING THE CARBON BRUSHES
Worn (shorter than 5 mm), burnt or cracked motor carbon brushes should be immediately replaced.
Both carbon brushes should be always replaced at the same time.
Carbon brushes should be replaced by a qualified person using original spare parts only.
All types of faults and defects should be eliminated by an authorised service of the manufacturer.
OPERATION AND MAINTENANCE
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