Cardi T1800 20-MU-EL User manual

CAR ID
www.cardi.biz
EN SAFETY AND USER MANUAL FOR:
WET AND DRY USE HAND-HELD CORE DRILL
USA - CANADA

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SERIAL #
SERIAL #
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11
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m/s
100
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10 100 350200
2000
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max
min
6 m/s
4 m/s
2 m/s
mm
n/min
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20 30 40 50 60 809070
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1 English
Your CARDI core drill is a power tool designed to make holes in stone-like materials (ex:
bricks, masonr , natural stone) using diamond core bits. It can be used hand-held or with
a proper drill stand.
General safet rules
General safet rules
WARNING! Read all instructions. Failure to follow all
instructions listed below may result in electric shock, fire
and/or serious injury. The term "power tool" in all of the
warnings listed below refers to your mains operated
(corded power tool or battery operated (cordless
powertool.
SAVE THESE INSTRUCTIONS
1 Work area
a Keep working area clean and well lit Cluttered
and dark areas invite accidents.
b Do not operate power tools in explosive
atmospheres, such as in the presence of
flammable liquids, gases or dust Power tools
create sparks which may ignite the dust or fumes.
c Keep children and bystanders away while
operating a power tool Distractions can cause
you to lose control.
2 Electrical safety
d Power tool plugs must match the outlet
Never modify the plug in any way Do
not use any adapter plugs with earthed
(grounded power tools. Unmodified plugs
and matching outlets will reduce risk of
electric shock.
e Avoid body contact with earthed or
grounded surfaces such as pipes,
radiators, ranges and refrigerators
There is an increased risk of electric shock
if your body is earthed or grounded.
f Do not expose power tools to rain or
wet conditions Water entering a power
tool will increase the risk of electric shock.
g Do not abuse the cord Never use the
cord for carrying, pulling or unplugging
the power tool Keep cord away from
heat, oil, sharp edges or moving parts
Damaged or entangled cords increase the
risk of electric shock.
h When operating a power tool outdoors,
use an extension cord suitable for
outdoor use. Use of a cord suitable for
outdoor use reduces the risk of electric
shock.
3 Personal safety
a) Stay alert, watch what you are doing and use
common sense when operating a power tool
Do not use a power tool while you are tired or
under the influence of drugs, alcohol or
medication A moment of inattention while
operating power tools may result in serious
personal injury.
b) Use safety equipments: always wear
eye protection Safety equipment such as
dust mask, non-skid safety shoes, hard
hat, or hearing protection used for
appropriate conditions will reduce personal
injuries.
c) Avoid accidental starting Ensure the
switch is in the off position before
plugging in Carrying power tools with
your finger on the switch or plugging in
power tools that have the switch on invites
accidents.
d) Remove any adjusting key or wrench
before turning the power tool on A
wrench or a key left attached to a rotating
part of the power tool may result in
personal injury.
e) Do not overreach Keep proper footing
and balance at all times. This enables
better control of the power tool in
unexpected situations.
f) Dress properly Do not wear loose
clothing or jewellery Keep your hair,
clothing and gloves away from moving
parts Loose clothes, jewellery and long
hair can be caught in moving parts.
g) If devices are provided for the
connection of dust extraction and
collection facilities, ensure these are
connected and properly used Use of
these devices can reduce dust related
hazards.
h) Use auxiliary handles supplied with the
tool Loss of control can cause personal
injury.
4 Power tool use and care
a Do not force the power tool Use the correct
power tool for your application The correct
power tool will do the job better and safer at the
rate for which it was designed.
b Do not use the power tool if the switch does
not turn it on and off Any power tool that cannot
be controlled with the switch is dangerous and
must be repaired.
c Disconnect the plug from the power source
before making any adjustments, changing
accessories, or storing power tools Such
preventive safety measures reduce the risk of
starting the power tool accidentally.
d Store idle power tools out of the reach of
children and do not allow persons unfamiliar
with the power tool or these instructions to
operate the power tool Power tools are
dangerous in the hands of untrained users.
e Maintain power tools Check for misalignment
or binding of moving parts, breakage of parts
and any other condition that may affect the
power tools operation lf damaged, have the
power tool repaired before use. Many accidents
are caused by poorly maintained power tools.
f Keep cutting tools sharp and clean Properly
maintained cutting tools with sharp cutting edges
are less likely to binf and are easier to control.
g Use the power tool, accessories and tool bits
etc , in accordance with these instructions and
in the manner intended for the particular type
of power tool, taking into account the working
conditions and the work to be performed Use
of the power tool for operations different from
intended could result in a hazardous situation.
5 Service
h Have your power tool serviced by a qualified
repair person using only identical replacement
parts This will ensure that the safety of the power
tool is maintained.

2 English
Additional safety rules for diamond core drills
Always
wear safety
goggles
Always
wear
safety
gloves
Always wear
ear
protection
Always
wear safety
shoes
Always
wear dust
mask
Instructions before use
Instructions before use
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 dr drilling
 this technique is suitable for drilling into abrasi e
materials like tiles, gasbeton, poroton, etc;
 this technique is not suitable when you want to
make holes into concrete (reinforced or not
reinforced);
 dry drilling is more effecti e and safe if dust is
remo ed by an industrial acuum cleaner. In
particular you must remo e the dust if you drill
ertically downwards;
 if you want to remo e the dust with an industrial
acuum cleaner, make sure that your core drill is
equipped with the dust extraction integrated de ice
(see figure 3, components F and H) that allows you
to connect your core drill to an industrial acuum
cleaner. Otherwise use a proper accessory, called
dust extraction de ice (Q), that can be mounted to
the front part of the core drill;
 the industrial acuum cleaner must be suitable for
thin dust;
 always wear a dust mask when performing dry
drilling.
b) Hand-held wet drilling
 wet drilling means that you drill with water coming
out of the core bit remo ing the drilling dust. The
water comes into the core drill through a hosepipe
connection;
 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;
 if your core drill has a maximum drilling diameter
below 80 mm, follow this alue;
c) Drilling with a drill stand
 this drilling technique is safer and more effecti e
than the hand-held drilling technique;
 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 gi en by the stand
manufacturer;
Power suppl
Earth (Ground)
 the metallic parts of your core drill are connected to
the earth.
 make sure that the socket and possible extension
cords and multiple sockets ha e 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 ha e 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 pro ided 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 11 on this manual
for the choice of the right section of the conductors;
 if you use more than one extension cord make sure
that e ery cable in each extension cord has a
section not lower than the alue shown on the chart
in figure 11, considering the total length of the
extension cords;
 remember that the more an extension cord is long
the more the oltage drop is high and the worse is
the operation of your core drill. Don’t use extension
cords if you ha e to operate too far from the
electrical socket.
PRCD: portable residual current device
(GFI)
 your core drill is equipped with a safety portable
residual current de ice (PRCD) assembled on the
cord. This de ice is shown in figure 8;
 ne er 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 green button Reset (O): a red led will light
up (P) showing that electricity is a ailable to the
core drill. Than press the blue button Test (N) that
tests if the de ice 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;
 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 ser ice centre in order to remo e the
causes of the electrical dissipation.
Preliminar 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.

3 English
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.
Follow instructions gi en by the stand
manufacturer to fix the stand to the
material you want to drill.
b) Follow these instructions:
 if you want to operate in wet mode, connect the
hosepipe to the core drill as explained in the
following Water insertion paragraph. Make sure that
the water al e is shut.
 if your core drill is equipped with a gear change
(figure 2 A), see the data plate on your core drill as
shown in figure 12. Identify the right rotating speed
according to the diameter of the core bit you are
using and the material you are drilling. The symbol
refers to abrasi e materials (like tiles, gasbeton,
poroton…), the symbol refers to hard materials
(like reinforced concrete…). 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.
ON/OFF switch
See figure 9.1 and 9.2 in order to understand how to use the
switch;
 the main switch of your core drill machine is
equipped with a block (lock-on) de ice that blocks
the switch in the on position.
Warning: this de ice can be used ONLY
when the machine is fixed to a proper stand.
You must not use the block de ice when you
are using your core drill hand-held;
 your switch can be equipped with a safety anti lock-
on device (N), shown in figure 9.2, that doesn’t
allow you to use the block de ice when the core
drill is used hand-held.
Warning: for your safety, you must get
familiar with the switch in order to pre ent the
unintentional switching on of the core drill.
Connection to a water suppl
Wet drilling needs the insertion of water into the core drill.
This can be done in two ways: by using the water insertion
system shown in figure 2 or by using the combined system
shown in figure 3. During wet drilling follow these
instructions:
 use just the water insertion systems pro ided with
your machine, depicted in figure 1, 2 or 3. The
water systems include a al e (C) and a quick hose
connector (D);
 the maximum pressure allowed of the incoming
water is 4 bar;
 use just clean water;
 make sure that the water doesn’t come into contact
with any electric part of your core drill;
 check regularly that none of the water system
components are damaged. Check in particular the
al e (C), the quick hose connector (D) and,
alternati ely, the connectors (F and G) or the pipe
and the elbow connector.
Combined dust extraction and water
insertion s stem
Your core drill can be equipped with a combined dust
extraction and water insertion system integrated into the
machine, shown in figure 3. You can use this system to
insert water or, alternati ely, to extract dust using an
industrial acuum cleaner. The following instructions show
you how to use this system in the these two modes.
Water insertion
 mount the quick hose connector (D) to the
hosepipe, making sure that the al e 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;
Dust extraction
 connect a proper industrial acuum cleaner to the
pipe connection de ice (H). The acuum cleaner
must be suitable to suck thin dust up;
 connect the pipe connection de ice to the quick
connection de ice (F).
As an alternati e, you can use a special accessory (R).
Checks and precautions to avoid
structural damage and damage to the
plant
Before starting any drilling acti ity, 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 b the fall of the core
 before drilling, make sure that the possible falling
out of core from the other side of the hole doesn't
make any damage. Always 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.
Start drilling device
When you use your core drill hand-held, you must use a
start drilling device. Some examples are shown in figures
13, 14 and 15. This de ices allow safe and precise drilling.
Warning: not using these de ices can lead to
excessi e arms ibration.
Core bit choice
The maximum and minimum core bit diameter, according to
the kind of drilling performed, is reported on the data plate
on your core drill. Pay attention to further limitation to the
core bit diameter reported in the paragraph Drilling
technique choice.
Warning: for your safety do not use different core
bits from the ones prescribed for your specific
application.

4 English
The core bit is different depending on the material to be
drilled and the kind of drilling you are performing: consult
your dealer about the correct core bit for your application.
The not suited core bit or a core bit not sharp can o erload
the motor leading to damage to the motor, long drilling time,
excessi e diamond segments wear.
Diamond core bit mounting and
replacement
Follow these directions, refer to figure 5:
 before mounting or remo ing the core bit (L) always
unplug the core drill;
 lubricate the core bit and the core bit spindle thread
in order to make easier, after use, the core bit
remo al;
 if you your core bit connection doesn’t match the
core bit spindle (ex. 1/2 G), use a proper adapter
a ailable among CARDI accessories;
 if a ailable interpose a quick release de ice (M)
between the core bit spindle and the core bit (as
shown in figure 5).
 before starting to drill make sure that the core bit is
firmly screwed on the core bit spindle.
Fastening the work piece and size of the
work piece
 if the work object is a block and not part of a
structure, fasten it in order to pre ent its mo ement;
 pre ent the work piece from shifting, mo ing or
falling when you are cutting.
Environmental conditions
 don’t expose the machine to rain, ice or snow;
 pre ent water or any other liquid from coming into
contact with the electric parts of your machine;
 do not use the core drill in explosi e atmospheres,
for instance in presence of inflammable liquids, gas
or dust. The electric core drill produces sparks
which can ignite dust or smoke.
Overhead drilling (ceiling drilling)
You can perform o erhead drilling (upward) when the core
drill is used in the dry mode. O erhead drilling is allowed in
the wet mode ONLY if you use a proper stand and a water
collecting de ice that a oids water coming into contact with
any electrical parts. These de ices are a ailable as CARDI
accessories.
Warning: the possible drop of the core can be
dangerous. Watch out!
Operating instructions
Operating instructions
Follow these instructions:
Warning: do not touch any mo ing parts of
your core drill when operating.
 if you want to operate in the wet mode, open the
al e (the al e is open when the handle is parallel
to the water stream). The water should come out
from the centre of the core bit.
 if you use the core drill hand-held, using a start
drilling de ice, begin to drill into the material,
pressing lightly. Let the diamond segments drill
about 1 cm deep into the material. This operation is
ery important because, if correctly carried out,
leads to a perfect centering and makes drilling
easier. After this some start drilling de ices need to
be remo ed;
 if you use the core drill with a stand, fix the stand on
the material to be drilled and than mount the core
drill to the stand, according to the instructions
pro ided by the manufacturer of the stand. Than
switch on the core drill, keeping the core bit not in
contact with the material to be drilled. After this
operation, using the mo ing system of the stand,
mo e the core drill and the rotating core bit closer
to the material and, pressing lightly, drill about 1 cm
into the material. This operation is ery important
because, if correctly carried out, leads to a perfect
centering and makes drilling easier. In any case,
refer to directions pro ided by the manufacturer of
the stand;
 after the centring 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 mo e and a oid any possible
mo ement of it. When the core bit rotation axis
mo es, the friction between the wall of the hole and
the core bit leads to a considerable power loss.
 if you can not continue drilling, you can make a new
hole around the old one (o er-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 lead to problems mo ing
forward the core bit. If you ha e this kind of
problems, pull the core out of the hole and remo e
all the materials listed before that don’t allow the
core bit to go on and then continue with drilling
operations;
 in case the electric power goes off, set the switch to
the off position, pre enting the machine from
accidentally self starting;
 do not touch the core bit after performing a drill.
The core bit can be ery hot and cause se ere
burns.
Mechanical clutch
Warning: the unexpected block of the core bit
rotation can cause an hea y jerk at your arms.
The maximum force of this jerk at your arms, accordingly
with the safety regulation, can not exceed 40 Kg. Be always
ready to resist this kind of jerk and to quickly release the
switch. Your CARDI core drill 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 de ice, you must always be watchful and
be ready to resist the jerk and release the switch. The block
of the core bit rotation is dangerous for the operator
Electronic devices
Your core drill is equipped with a CARDI multifunction
electronic de ice that includes a soft-start and an electronic
clutch.
 the soft-start allows the motor soft-start, reduces
current peak that occurs when you switch the motor
on, helps you when you begin drilling, allowing
gradual core bit rotation and a oiding jerks at your
arm, and allows you to use your core drill
connected to the household electric outlet equipped
with automatic switch;

5 English
 the electronic clutch cuts off power to the motor in
case of excessi e o erload, increasing the operator
safety and pre enting damage to the motor. When
the o erload is o er, the de ice gi es 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
excessi e friction between the core bit and hole
wall or an excessi e 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 remo e 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 - Warrant
Maintenance - Service - Warrant
Periodic maintenance
 at the end of the work, after ha ing remo ed the
core bit, blow compressed air inside the rotating
motor in order to remo e dust and powder. Do this
operation wearing protecti e goggles;
 before starting any other cleaning, maintenance or
lubrication operation make sure that the core drill is
unplugged;
 keep lubricate the core-bit shaft thread;
 keep your core drill clean and dry, in particular its
handles;
 ne er use sol ents or other harsh chemicals for
cleaning your core drill;
 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 ha e to check the oil le el or to fill it up.
 always unplug the core drill during check or
replacement;
 ne er unplug the core drill by pulling the cord;
 inspect often feeding cable and extension cords,
making sure that they don’t ha e any damage like
cuts, abrasions or li e conductors. If you find a
damage, ask a CARDI authorized ser ice centre for
replacement;
 do not use the core drill with damaged components
or with malfunctions, in particular when the switch
doesn’t work properly. In these cases, ask a CARDI
authorized ser ice centre for replacement.
Service
 after 250 hours of work, bring your core drill to a
CARDI authorized ser ice centre for periodical
check;
 any core drill repairing must be carried out by
CARDI authorized ser ice personnel only. Ask your
dealer for the list of the CARDI authorized ser ice
centres;
 your machine's serial number is stamped on the
machine or printed on the data plate as shown in
figure 10;
 use original CARDI spare parts only.
Warrant
Your product is under CARDI warranty for 12 months,
starting from the date of purchase. This warranty is against
faulty workmanship, flaws material and design problems.
The warranty co ers free components replacement,
manpower needed for replacement and wearing materials
such as oil and lubricants if intact before the repairing
operation. The warranty doesn't co er the replacement of:
 components of the product replaced or modified by
people not authorized by CARDI;
 components damaged by carelessness, not
suitable use or o erloaded;
 components of products from which safety de ices
ha e been remo ed;
 worn wearing parts replaced during repair.
This warranty does not apply to products that ha e been
damaged by carelessness like water entering the core drill,
lack of periodic cleaning and maintenance, damage of the
threaded components or the spindle etc.
The life of wearing parts is ariable depending on the
working time and the kind of work they are used for.
Examples of wearing parts are: cables, switches and plugs,
brushes, commutators, clutch plates, ball and roller bearing
not in oil, sealing rings, transmission spindles, filters, etc.
If during repairing under warranty, a wearing part is worn
and this can affect the safety and the operation of your
product, the customer is asked to pay for the replacement of
these components not under warranty. If the customer
refuses this, no repairing operation will be carried out.
The warranty co ers free replacement of components which
are defecti e due to wrong manufacturing or assembly, if the
product is brought to an authorized ser ice centre and if:
 the product is together with a purchasing document
stating when the product has been purchased.
Valid purchasing documents are in oices or
deli ery certificates;
 maintenance operations ha e been carried out
e ery 250 working hours, replacing the worn
wearing parts;
 no unauthorized people ha e ser iced the product;
 the product has not been misused and it has been
used accordingly with the directions gi en in this
user manual;
 all safety directions ha e been followed.
Your CARDI product is not under warranty if:
 the product has been ser iced by people not
authorized by CARDI.
 damage is due to incorrect use and/or
carelessness. Dents due to drops or strokes will be
considered e idence of carelessness;
 damage has been caused by mechanical or
electrical o erload;
 damage has been caused by water, mud or any
other liquid entering the product.
When your product is under warranty, in some cases, for
example if the CARDI authorized ser ice personnel think the
repairing is too expensi e to be carried out, the free
substitution of the product is possible. In addition, the
substitution under warranty is pro ided after two fruitless
reparation attempts and after the authorization of a CARDI
ser ice manager. In case of substitution, the customer is,
usually, requested to pay for the worn wearing parts of the
product that has been replaced.

6 English
User-replaceable components
No components of the CARDI product can be replaced by
the user. Replacement must be carried out by CARDI
authorized personnel only.
CARDI service centres - Address list
Ask your dealer for a CARDI ser ice centres address list.
Package contents
Package contents
For the list of contents refer to the Spare Parts List, specific
for your model, located in the package together with this
manual.
Disposal of the product
The symbol on the left, that you can find on the product or on its packaging indicates that this product may not be treated as
household waste. At the end of its life the products must be handed over to the applicable collection point for the recycling of
electrical and electronic equipment.
Be sure that this product is disposed correctly. You will help prevent potential negative consequences for the environment and
human health. For more detailed information about what to do when your product doesn't work and is not fixable, contact the dealer
where you did purchase the product.
Your product has been introduced new on the market after August 13th 2005.
This manual is subject to modifications without notice.
WA RN IN G:
THE MAN UFACT UR ER DEC LINES ALL RESPONSA BILITY
IN C ASE OF NO RESPEC T OF TH E AB OVE W RI TT EN
"SA FET Y AND OPERATING INSTR UCTIONS" .

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