Cardi Diamond Pulse-Tech Manual De Usuario Y De Seguridad página 16

English
Devices to reduce vibrations
Core drills and more in general every power tool, expose the
user to vibrations that could be dangerous for the health if
prolonged and repeated for significant lengths of time.
The European Directives and Standards for Safety define
limits to time and level of exposure of workers to vibrations.
The employer is responsible for the safety and health of his
workers and he has to evaluate the daily vibrations exposure
taking action when the limits are exceeded.
To reduce the worker's exposure to vibrations, CARDI offers
specifically developed devices.
Ask your dealer for more information.
Dust suppression
▪
dry drilling is safer and more effective if dust is
removed by a proper vacuum cleaner;
▪
the core drill is equipped of an integrated dust
extraction system; just connect a proper vacuum
cleaner to the dust outlet;
▪
a proper vacuum cleaner must be suitable for
thin/fine dust;
▪
always wear a dust-mask when performing dry
drilling.
Power supply
Earth (Ground)
▪
the metallic parts of you core drill motor are
connected to the earth.
▪
make sure that the socket and possible extension
cords and multiple sockets have the earth
connection and that your electrical system is
properly connected to the earth.
Warning: for your safety, it is important that the
whole system (electrical system, extension cords,
sockets etc.) is connected to the earth. If you are
not sure, ask a qualified electrician for a check.
Extension cords
▪
when you have to operate with your core drill motor
far from an electrical socket, you can use an
extension cord. If you use it make sure that the
section of the cord is suitable and that the cord is
provided with ground conductor;
▪
the extension cord (made up of cable, plug and
socket) must be suitable for outdoor use. It is better
if the cord is made of rubber and it is H07RN-F;
▪
follow the chart shown in figure 10 on this manual for
the choice of the right section of the conductors;
▪
if you use more than one extension cord make sure
that every cable in every extension cord has a
section not lower than the value shown on the chart
in figure 10, considering the total length of the
extension cords;
▪
remember that the more an extension cord is long
the higher the voltage drop is and the worse is the
performance of your core drill. We suggest
extensions no longer than 60 meters.
Combined dust extraction and water
insertion system
Your core is equipped with a combined dust extraction and
water insertion system integrated into the machine, shown in
figure 4. You can use this system to insert water or,
alternatively, to extract dust using an industrial vacuum
08-2021
cleaner. The following instructions show you how to use this
system in these two modes.
Warning: do not introduce tools or finger in dust
extraction conduct. In the case that dust conduct
shall be cleaned, before proceeding with the
cleaning, make sure the machine is disconnected
from the mains supply.
Dust extraction
▪
connect a proper vacuum cleaner to the bayonet
coupling pipe adapter (H). The vacuum cleaner must
be suitable to filter thin dust;
▪
connect the bayonet coupling pipe adapter to the
machine (F).
Water insertion
▪
mount the quick hose connector (D) to the hosepipe,
making sure that the valve is shut (perpendicular to
the water stream);
▪
join the connector G to the connector F mounted to
the core drill. Make sure that the two connectors are
firmly joined;
▪
the maximum pressure of incoming water is 4 bar;
▪
use just clean water;
▪
prevent water from entering the electric motor or
other electrical components;
▪
check at regular intervals that none of the water
system components are damaged.
Preliminary operations
In order to prepare your core drill to operate, follow these
steps. Before proceeding with the preparation make sure that
the plug is disconnected from the electricity network.
▪ follow the instructions given by the stand
manufacturer for fastening the stand to the
material to be drilled;
▪ follow the instructions given by the stand
manufacturer for mounting your core drill
motor to the stand;
Follow these instructions:
▪
choose if you would like to drill wet or dry, following
the instruction in the paragraph "Combined dust
extraction and water insertion system";
▪
your core drill is equipped with a gear change (figure
2/A), see the data plate on your core drill motor as
shown in figure 8. Identify the right rotating speed
according to the diameter of the core bit you are
using. Select the required gear change position just
when the motor is at standstill;
▪
refer to the following paragraph Diamond core bit
mounting and replacement in order to mount the
core bit to your core drill.
PRCD: portable residual current device
(GFI)
▪
your core drill is equipped with a safety portable
residual current device (PRCD) assembled on the
cord. This device is shown in figure 9;
▪
never use core drill without PRCD;
▪
before starting to drill make sure the PRCD works
properly. In order to do so, plug the core drill in and
press the button Reset (O): the indicator appears (P)
showing that electricity is available to the core drill.
Then press the button Test (N) that tests if the device
works properly. When you press it the circuit breaker
inside the PRCD should cut the power off leading the
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