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Carat A-1821 Manual

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15
ENGLISH
Overload protection
To protect the motor, operator and diamond drill, the ma-
chine is provided with a mechanical, electronic and ther-
mal overload safety system. Whenever the engine is swit-
ched o󰀨 due to overload, it must be switched on again as
soon as possible to cool the engine. Then let the drill turn
for a minimum of 1 minute.
1 - Electronic / Thermal
Whenever the engine is heavily overloaded , the overload
indication (LED) on top of the handle will start ashing. The
pressure on the diamond drill bit must than be reduced.
When the motor is overloaded too long, the LED ashes
continuously and the machine will switch o󰀨 automatically.
2 - Mechanical
If the drill bit suddenly gets stuck, the slip coupling is acti-
vated to disconnect the main axis from the engine. Make
sure you switch o󰀨 the engine immediately and remove the
drill from the hole. When the slip coupling is activated for
a longer periods, the mechanical slip must be re-tuned by
a recognised expert.
Drilling with water cooling - Water connection
IF APPLICABLE
The drilling machine is equipped with a water tap, which
includes a ‘Gardena’ connection. Make sure that the core
drill is su󰀩ciently cooled and that the slurry is properly
discharged. The maximum permitted water pressure is 3
bars. Always use clean water to enlarge the life span of
the internal water seals. In case of leakage, the drilling
machine has to be checked IMMEDIATELY by a certied
mechanical expert.
Dry drilling - Dust Extraction
IF APPLICABLE
For dry drilling only use designated drill bits. Dry drilling is
only possible in masonry, brick/block and sandstone.
Dust released during dry drilling is dangerous to your he-
alth. Therefore a dust extraction system specially intended
for this purpose must be used, and if necessary, a dust
mask worn. The use of a dust extraction system is also
required to optimize the life time of the diamond drill bit. To
prevent clogging of the dust extraction system it is essenti-
al that the materials which are being drilled are completely
dry. Information about dust extraction systems is available
at your diamond tools supplier.
Dustec ® dust extraction
The A-1810DT is equipped with an integrated Dustec ®
dust extraction system which is only suitable for Dustec ®
drill bits (with dust holes in the top ange) of max. Ø82 mm
and M16 (F) connection.
The drill bit can be mounted directly on the output shaft. To
remove the drill bit xate the output shaft with a spanner
24. Then loosen the drill bit with a spanner 24, through the
hose connection of the dust extraction.
The dust released during drilling is dangerous to your he-
alth. The A-1810DT is therefore only to be used in combi-
nation with a suitable vacuum cleaner, which is connected
to the hose connection on the Dustec® system.
NASTROC ® system
The A-1821 is equipped with the robust NASTROC ® sy-
stem and the diamond drill can be changed without using
other tools. The lock nut has to loosened, so that the dia-
mond drill with NASTROC ® connection can be assem-
bled.
ENVIRONMENTAL PROTECTION
According to the European regulation 2012/19/
EU, CARAT is responsible to recycle old electric
drill motors. You are therefore requested to re-
turn old CARAT electric drill motors to your local
reseller.
WARRENTY
For the machine, a guarantee period of 12 months applies
from the moment of delivery. Guarantee claims must be
shown by submission of purchase invoice. The guarantee
includes the repair of defects which have occurred and can
be linked by to material or manufacturing faults.
Not covered by guarantee:
• Defects or damages which have arisen due to incorrect
use or connection.
• Machine overload.
• When maintenance has been carried out incorrectly or
badly.
• Information in the manual has not been properly follo-
wed.
• The machine is used by unqualied persons.
• If the machine is used for purposes for which it is uns-
uitable.
• The machine is repaired using unoriginal parts.
• If the machine encryption is damaged or deleted.
• If defects are caused by re, damp and/or transport.
EMISSION
The measured average vibration is less then 2,5 m/s².
Typically the A-weighted noise levels of the pro-
duct are: Sound pressure level 82 dB(A); Sound
power level 92 dB(A). Uncertainty K = 3 dB.
Measured values determined according to EN 62841.
DECLARATION OF CONFORMITY
We declare under our sole responsibility that this product is
in conformity with the following standards or standardized
documents:
EN 62841-1; EN 61000; 2006/42/EC; 2014/30/EC;
2011/65/EU
Director: C.J. van Beek
22-06-2022
CARAT Nederland B.V.
Nikkelstraat 18, 4823 AB Breda , The Netherlands
… 15 …


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