If this happens, stop cutting and allow the dia-
mond cutting disc to cool down by running the
power tool for a short time at maximum speed
with no load.
If work is noticeably slower and there is circular
sparking, this indicates that the diamond cutting
disc has become blunt. You can resharpen the
disc by making short cuts in an abrasive material
(e.g. lime-sand brick).
Information on structural design
Slots in load-bearing walls are subject to DIN
1053 part 1 or country-specific regulations. These
regulations must be observed under all circum-
stances. Seek advice from the responsible struc-
tural engineer, architect or construction super-
visor before starting work.
Maintenance and Service
Maintenance and cleaning
Pull the plug out of the socket before carry-
u
ing out any work on the power tool.
To ensure safe and efficient operation, al-
u
ways keep the power tool and the ventilation
slots clean.
In extreme conditions, always use a dust ex-
u
tractor if possible. Blow out ventilation slots
frequently and install a residual current
device (RCD) upstream. When machining
metals, conductive dust can settle inside the
power tool, which can affect its protective insu-
lation.
Store and handle the accessories carefully.
In order to avoid safety hazards, if the power sup-
ply cord needs to be replaced, this must be done
by Berner or by an after-sales service centre that
is authorised to repair Berner power tools.
Disposal
English
The power tool, accessories and packaging
should be recycled in an environmentally friendly
manner.
Do not dispose of power tools along
with household waste.
Only for EU countries:
English
According to the European Directive 2012/19/EU
on Waste Electrical and Electronic Equipment and
its implementation into national law, power tools
that are no longer usable must be collected separ-
ately and disposed of in an environmentally
friendly manner.
26 | English
English
English
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1 609 92A 4ZV • 9.4.19