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Idiomas disponibles
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9
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.
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:
if you want to operate in wet mode, connect the
▪
hosepipe to the core drill motor as explained in the
Connection to a water supply. Make sure that the
water valve is shut;
if 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 5. 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 6;
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 switch automatically to go to the off
position and the indicator disappears;
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.
ON/OFF switch
The on/off switch is shown in figure 4.
Warning: for your safety, you must get
familiar with the switch in order to understand
how you can switch the machine off in case
of emergency.
Connection to a water supply
Refer to figure 2.
use only the water pipe provided with your core drill
▪
motor. The water pipe includes also a valve (C) and
a quick hose connector (D);
▪
the maximum pressure of incoming water is 4 bar;
07.2020
English
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. Check in
particular the valve (C), the quick hose connector (D)
and the pipe.
Checks
and
precautions
structural damage and damage to the plan
Before starting any drilling activity, talk with the construction
manager or the planner in order to make sure that the drilling
doesn't:
make any damage to the structure of the building
▪
and doesn't change the structural characteristics of
the construction;
damage any water or gas pipeline or any electric
▪
mains.
Checks and precautions to avoid damage
caused by the fall of the core
before drilling, make sure that the possible falling out
▪
of core from the other side of the hole does not make
any damage. In any case, bound the area where the
core can fall and signal the danger;
if the possible fall of the core can make damage,
▪
make a system that holds the core when drilling is
completed.
Core bit choice
The maximum and minimum core bit diameter is reported on
the data plate on your core drill motor. Do not use core bit
with different diameter from the one prescribed.
Warning: for your safety do not use different core
bits from the ones prescribed for your specific
application
The core bit is different depending on the material to be
drilled: consult your dealer about the correct core bit for your
application. The not suited core bit or a core bit not sharp can
overload the motor leading to: damage to the motor, long
drilling time and excessive diamond segments wearing.
Diamond
core
replacement
Follow these directions, refer to figure 3:
before mounting or removing the core bit (L) always
▪
unplug the core drill motor;
lubricate the core bit and the core bit spindle thread
▪
in order to make easier, after use, to remove the core
bit;
if your core bit connection doesn't match the core bit
▪
spindle (ex. 1/2 G), use a proper adapter available
among accessory;
if available interpose a quick release device (M)
▪
between the core bit spindle and the core bit;
before starting to drill make sure that the core bit is
▪
firmly screwed on the core bit spindle.
Drill stand
Warning: for your safety, make sure that the drill
▪
stand you are using is compatible with the diameter
of the core bit and that it is compatible with the
power of your core drill motor, shown on the data
plate.
to
avoid
bit
mounting
and
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