Power Supply; Preliminary Operations - Cardi T1-MU-EL A1 Serie Manual De Usuario Y De Seguridad

English
I n s t r u c t i o n
I n s t r u c t i o n
Read carefully the data reported on the data plate
of your core drill and on the Technical Data sheet
that you will find in the package together with
your product.
In the following text, figures are identified by numbers,
details inside the figures by letters. Figures are depicted on
the first pages of this user manual.
Drilling technique choice
Choose one of the following drilling techniques according to
the material you want to drill and according to the diameter
and the length of the hole you want to make.
a) Hand-held dry drilling
ƒ
this technique is suitable for drilling into abrasive
materials like tiles, gasbeton, poroton, etc;
ƒ
this technique is not suitable when you want to
make holes into concrete (reinforced or not
reinforced);
ƒ
dry drilling is more effective and safe if dust is
removed by an industrial vacuum cleaner. In
particular you must remove the dust if you drill
vertically downwards;
ƒ
if you want to remove the dust with an industrial
vacuum cleaner, make sure that your core drill is
equipped with the dust extraction integrated device
(see figure 3, components F and H) that allows you
to connect your core drill to an industrial vacuum
cleaner. Otherwise use a proper accessory, called
dust extraction device (Q), that can be mounted to
the front part of the core drill;
ƒ
the industrial vacuum cleaner must be suitable for
thin dust;
ƒ
always wear a dust mask when performing dry
drilling.
b) Hand-held wet drilling
ƒ
wet drilling means that you drill with water coming
out of the core bit removing the drilling dust. The
water comes into the core drill through a hosepipe
connection;
ƒ
this technique is suitable for holes into compact and
hard materials like concrete (reinforced or not
reinforced), bricks, stone, stone-like materials etc.
when the diameter of the hole is below 80 mm and
depth below 400 mm;
ƒ
if your core drill has a maximum drilling diameter
below 80 mm, follow this value;
c) Drilling with a drill stand
ƒ
this drilling technique is safer and more effective
than the hand-held drilling technique;
ƒ
this technique is suitable when you want to make
holes with diameter below the maximum drilling
diameter reported on your product, into any kind of
material. In particular you must use a drill stand if
you are drilling outside the limits defined before for
hand-held drilling, in terms of material and
diameter.
when you use your core drill mounted to a
stand, follow the directions given by the stand
manufacturer;

Power supply

Earth (Ground)
ƒ
the metallic parts of your core drill are connected to
the earth.
s b e f o r e u s e
s b e f o r e u s e
ƒ
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
ƒ
when you have to operate with your core drill 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;
ƒ
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;
ƒ
follow the chart shown in figure 11 on this manual
for the choice of the right section of the conductors;
ƒ
if you use more than one extension cord make sure
that every cable in each extension cord has a
section not lower than the value shown on the chart
in figure 11, considering the total length of the
extension cords;
ƒ
remember that the more an extension cord is long
the more the voltage drop is high and the worse is
the operation of your core drill. Don't use extension
cords if you have to operate too far from the
electrical socket.
PRCD: portable residual current device
(GFI)
ƒ
your core drill is equipped with a safety portable
residual current device (PRCD) assembled on the
cord. This device is shown in figure 8;
ƒ
never use core drill without PRCD;
ƒ
before starting to drill make sure the PRCD works
properly. In order to do so, plug the core drill in and
press the green button Reset (O): a red led will light
up (P) showing that electricity is available to the
core drill. Than press the blue 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 switch automatically to go to
the off position and the red led to go off;
ƒ
if, when drilling, the PRCD cuts the power: stop
working, set the main switch of you core drill on the
OFF position and bring your core drill to an
authorized service centre in order to remove the
causes of the electrical dissipation.

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 outlet.
a) If you use your core drill manually, fix the auxiliary
handle (B) to the core drill, as shown in figures 1 and
2.
Warning: If you don't use the auxiliary
handle you can lose control of the core drill
and this can lead to serious personal
injuries.
If you use your core drill with a stand, fix the machine
into the collar of the stand as shown in figure 16.
8