Cardi Diamond Pulse-Tech Manual De Usuario Y De Seguridad página 18

English
because, if correctly carried out, leads to a perfect
centering and makes drilling easier. In any case,
refer to instructions provided by the manufacturer of
the stand. Perform this starting phase in "Rotative
mode".
▪
at this point you can choose if continue to drill in
"Rotative mode" or if putting the machine in "Roto-
Percussion mode" to make the job. Refer to the
Paragrah "Rotative and Roto-Percussion modes".
▪
after the centering operation, increase the forward
speed. On one hand, a too low forward speed leads
to polishing of diamond sectors, decreasing their
drilling capacity. On the other hand, a too high
forward speed, leads to a quick segments wear.
▪
when drilling, make sure that the rotation axis of the
core bit doesn't move and avoid any possible
movement of it. When the core bit rotation axis
moves, the friction between the wall of the hole and
the core bit's metal body leads to a considerable
power loss.
▪
If, for any reason, you cannot continue drilling, you
can make a new hole around the old one (over-
drilling), keeping the same rotation axis. The
diameter of the new hole must be at least 15-20 mm
bigger than the diameter of the old one;
▪
drilling materials containing wood, cork, rubber,
foam polystyrene can generate problems to the
drilling to continue. If you have this kind of problems,
pull the core out of the hole and remove all the
materials listed before that don't allow the core bit to
go on and then continue with drilling operations;
Warning: in case the mains supply goes off, set
the switch to the off position, preventing the
machine from accidentally self-starting.
Warning: do not touch the core bit after
performing a drill. The core bit can be very hot and
cause severe burns.
Mechanical clutch and core bit jamming
▪
be ready to turn the switch of your core drill motor
off, in case of a core bit jamming;
▪
your CARDI core drill motor is equipped with a safety
mechanical clutch that comes into operation in case
of sudden stop of the core bit rotation. Despite your
drill is equipped with this device, you must always be
watchful and be ready to switch off the motor.
▪
in case of jamming, after having switched the motor
off, try to unclamp the core bit using an hexagonal
spanner hocking on the core bit connection;
▪
alternatively, you can use a chain spanner, paying
attention not to damage the core bit.
Warning: do not try to unclamp the core bit with
the motor is on or helping with the motor.
Multifunction electronic
Your core drill motor is equipped with a CARDI multifunction
electronic device that includes a soft-start and an electronic
clutch;
▪
the soft-start (peaks limiter) allows the motor to not
start at full power, reduces current peaks that occurs
when you switch the motor on, helps you when you
begin drilling, allowing gradual core bit rotation and
avoiding tears at your arm, and allows you to use
your core drill connected to the household electric
supply equipped with automatic circuit breaker;
▪
the electronic clutch cuts off power to the motor in
case of excessive overload, increasing the operator
08-2021
safety and preventing damage to the motor. When
the overload is over, the device gives back power to
the motor that begins working again;
▪
if the electronic clutch operates frequently means
that the core drill is not used properly. Possible
causes can be a not suitable forward speed, an
excessive friction between the core bit and hole wall
or an excessive drilling depth.
Drilling deeper than the core bit length
If you want to make an hole deeper than the core bit length
proceed as follows:
▪
drill till the end of the core bit;
▪
pull the core bit out of the hole and remove the core;
▪
place a proper core bit extension between the core
bit and the core drill thread;
▪
insert the core bit in the hole and proceed drilling.
Maintenance - Service -Warranty
Periodic maintenance
▪
at the end of the work, after having removed the core
bit, blow compressed air inside the rotating motor in
order to remove dust and powder. Do this operation
wearing protective goggles;
▪
before starting any other cleaning, maintenance or
lubrication operation make sure that the core drill
motor is unplugged;
▪
keep lubricate the core-bit shaft thread;
▪
keep your core drill clean and dry, in particular its
handles;
▪
never use solvents or other harsh chemicals for
cleaning your core drill motor;
▪
after use put your core drill in a dry, safe and
inaccessible to children place;
▪
gears are lubricated by lubricating oil and grease
which are suited for any external temperature. You
don't have to check the oil level or to fill it up.
▪
always unplug the core drill motor during check or
replacement;
▪
never unplug the core drill motor by pulling the cord;
▪
inspect often the feeding cable and extension cords,
making sure that they don't have any damage like
cuts, abrasions or live conductors. If you find a
damage, ask a CARDI authorized service centre for
replacement;
▪
do not use the core drill motor with damaged
components or with malfunctions, in particular when
the switch doesn't work properly. In these cases, ask
to a CARDI
replacement.
Service
▪
after 250 hours of work, bring your core drill motor to
a CARDI authorized service centre for periodical
check;
▪
any repairing must be carried out by CARDI
authorized service personnel only. Ask your dealer
for the list of the CARDI authorized service centres;
▪ your core drill motor's serial number is printed on the
data plate.
Use original CARDI spare parts only.
Warranty
Your product is under warranty for 12 months. This warranty
is against faulty workmanship, flaws material and design
authorized service centre
12
for