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• Install spark shield (10) to each of the grinding wheel covers (fig.
C).
• Set the spark shield to desired position.
• Turn the grinding wheel by hand to ensure it has no contact with
the spark shield.
• Tighten the screw firmly.
• Repeat the operation for the second spark shield.
Do not tighten screws for plastic plates too hard as it may
cause the plates to crack. Spark shield should be adjusted so
its lower edge is 2 mm from the grinding wheel surface. It is
necessary to correct position of the spark shields from time to
time, to compensate wear of the grinding wheels.
INSTALLATION OF THE WORKRESTS
Prior to fixing of workrests ensure the grinder is switched off
and that its plug is removed from the mains socket.
It is necessary to use workrests (8) with every high speed grinding
wheel to help in grinding tasks. Never use bench grinder without
workrests or with workrests improperly adjusted. There are left and
right workrests supplied. Ensure the correct workrest is installed at
each side.
• Install workrests (8) to inner walls of grinding wheel covers with
the use of supplied bolts and washers (fig. D).
• Move the workrests (8) from the wheels to a distance not
greater than 1.5 mm.
• Turn the grinding wheel by hand to ensure it has no contact
with the workrest.
• Repeat the described actions for the other side.
OPERATION / SETTINGS
CONNECTING TO POWER SUPPLY NETWORK
Prior to connecting ensure the network voltage matches the
voltage given on the rating plate of the bench grinder (located
on the back of the grinder). Grinder is a Class I device
(grounded) and thus it is equipped with three core power
supply cable and a plug with ground terminal.
SWITCHING ON / SWITCHING OFF
Switching on – press the green button I of the switch (7).
Switching off – press the red button O of the switch (7).
USING WORK LAMP
Work lamp (11) is automatically switched on when the grinder is
connected to a power supply.
The lamp is on flexible stem, which can be set in the most
comfortable position to illuminate working area. Position the lamp
correctly before switching the bench grinder on.
GRINDING
Before using the bench grinder ensure the eye shields (1) and
(2) and workrests (8) are installed and properly adjusted, and
that operator uses personal protection measures for eyes,
hearing and respiratory system protection.
• Never use wheels or brushes with larger diameter than maximum
allowable.
• Grinding wheel is an element of the bench grinder equipment,
which is very susceptible to damages and impacts. Check the
grinding wheel or brush before use, do not use brushes and wheels
with dents, cracks, excessively worn or otherwise damaged.
• It is important not to overload the grinder during operation. The
grinder should operate at speeds close to its maximum speed. In
case of excessive pressure to grinding wheel, the grinder slows
down. You should remove the processed material from the
grinding wheel and wait until the grinder reaches its maximum
speed. Only then you can proceed with the task, with lower
pressure applied to the wheel.
• The bench grinder is supplied with grinding wheels and brushes
designed for steel processing only. Grinding of copper, brass,
aluminium, wood or other, similar materials, will introduce fouling
to grinding wheel.
Disconnect the power tool from power supply.
• Rotate the grinding wheel (3) by hand to ensure it has no contact
with the shield and is free to rotate.
• Stand aside and switch on the grinder by pressing the switch
button (7), wait until the motor reaches its maximum rotational
speed.
• Press the processed material against the workrest (8) and close it
to the grinding wheel. Use pliers to hold small pieces.
• If the grinding causes considerable loss of motor speed, move
the material away from the wheel and allow the motor to reach its
maximum speed again, then proceed with grinding using lower
pressure of material against the grinding wheel.
When grinding use only front surface of the grinding wheel,
never lateral. Remember that processed material may heat up
very much. It may be necessary to cool the material by
immersing it in coolant or water. Do not cool the grinding
wheel with coolant or water. As the grinding wheel wears out
readjust the workrest so the distance between its edge and the
wheel is not greater than 1.5 mm. Ensure the object to be
processed does not fall out of your hands and does not jam
between the workrest and the wheel. It may cause the grinding
wheel to crack or personal injuries.
OPERATION AND MAINTENANCE
Always switch off the grinder with switch button and unplug
the power cord from the mains socket before commencing any
activities related to adjustment or maintenance.
When moving or replacing the grinding wheel or brush always
wear protective gloves, because grinding discs are very abrasive.
When replacement of power supply cord is necessary, this
operation should be conducted by an authorized service workshop
to avoid any potential risk of electric shock.
GRINDING WHEEL CLEANING
Cleaning a grinding wheel also levels front surface. It improves
working efficiency and prevents vibrations.
• Take wheel dresser (13) (fig. F).
• Press the wheel dresser (13) on the workrest (8), at approximately
5 mm distance from grinding wheel.
• Start the motor and allow it to reach its maximum speed.
• Hold the wheel dresser the way it is shown on fig. F.
• Slowly move the dresser towards the wheel and slide it across the
wheel width as many times as it is necessary to flatten the wheel
surface.
• Adjust the workrest (8) so it is positioned at a distance of 1 – 1.5
mm from the wheel surface.
Do not allow the wheel dresser to touch the grinding wheel
before reaching top rotational speed, because it can kick back,
be torn out of hand and cause serious body injury. Do not
press the wheel dresser harder to flatten the wheel surface
with one passage only.
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