52
7.2 Cutting (Fig. 6)
Fig. 6
Maintain firm contact with the workpiece
to prevent vibration and do not tilt or apply
pressure and when cutting. Use moderate pres-
sure when working, appropriate to the material
that is being worked on. Do not slow down
grinding discs by applying sideways counter
pressure. The direction in which you want to
cut is important. The machine must always
work against the direction of the cut; so never
move the machine in the other direction! There
is the risk that the machine will catch in the cut
causing kickback and that you will lose control.
7.3 The ON/OFF/ switch (Fig. 1)
Switching on
• Slide the ON/OFF switch forwards.
• The machine will start and keeps engaged
when releasing the switch.
Switching off
• Press the ON/OFF switch: this will then jump
to the OFF-position.
The grinder will continue to run after
it is turned off.
Only lay the machine down once the motor
has completely stopped turning. Do not put the
machine on a dusty surface. Dust particles can
penetrate the machine.
Never use the spindle key to stop the
motor turning.
Never use the machine to grind mag-
nesium workpieces.
7.4 Carbon brush indicator (Fig. 1)
When the carbon brushes are worn this indi-
cator will light up. The cabon brushes need to
the be replaced by the manufacturer’s custo
-
mer service department or equally qualified
persons.
8. SERVICE & MAINTENANCE
Make sure that the machine is not
live when carrying out maintenance
work on the motor.
The machines have been designed to operate
over a long period of time with a minimum of
maintenance. Continuous satisfactory opera-
tion depends upon proper machine care and
regular cleaning.
8.1 Trouble shooting
Should the machine fail to function correctly, a
number of possible causes and the appropriate
solutions are given below:
Machine fails to operate.
• Power turned off.
• (Extension) cable damaged.
The elektromotor hardly reaches maximum
speed.
• The extension cable is too thin and/or too
long.
• The mains voltage is lower than 230 V.
Machine overheats.
• Air vents are blocked. Clean them with a dry
cloth.
• The machine has been overloaded. Use the
machine for the purpose it is made for