Bosch GWS 24-230 Professional Manual Original página 29

dicated by circular sparking, rotating with the diamond cut-
ting disc.
If this happens, stop cutting and allow the diamond 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 with circular sparking, this
indicates that the diamond cutting disc has become blunt.
You can resharpen the disc by briefly cutting into abrasive
material (e.g. lime-sand brick).
Cutting Plastics
For cutting materials such as plastics with bonded cut-
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ting discs, always use the protective guard for
cutting (8) or the protective guard for grinding (7)
with a fitted cover for cutting (9).
Working with Diamond Annular Cutters
Only use dry diamond annular cutters.
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Always fit the hand guard (19) when working with dia-
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mond annular cutters.
Do not place the diamond annular cutter parallel to the work-
piece. Plunge it into the workpiece at an angle and in a circu-
lar motion. This will allow you to achieve optimal cooling and
ensure a longer tool life for the diamond annular cutter.
Information on structural design
Recesses in load-bearing walls are subject to country-spe-
cific regulations. These regulations must be observed under
all circumstances. Seek advice from the responsible struc-
tural engineer, architect or construction supervisor before
starting work.
Start-Up
Pay attention to the mains voltage. The voltage of the
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power source must match the voltage specified on the
rating plate of the power tool.
Products that are only sold in AUS and NZ: Use a resid-
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ual current device (RCD) with a nominal residual current
of 30 mA or less.
When operating the power tool using a mobile generator that
does not have sufficient reserve capacity or an adequate
voltage control system with inrush current boost converter,
loss of performance or atypical behaviour may occur upon
switch-on.
Please check the suitability of the power generator you are
using, particularly with regard to the mains voltage and fre-
quency.
Hold the tool by the insulated gripping surfaces and
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auxiliary handle only. The application tool could come
into contact with hidden wiring or its own cord. Con-
tact with live wires may make metal parts of the tool live,
posing a risk of electric shock.
Bosch Power Tools
Switching On and Off
4 2
Switching On With Locking Mechanism
To start the power tool, first press the on/off switch (2) ➊,
then slide it forwards ➋ and then press and hold it ➌.
To lock the pressed on/off switch (2), slide the on/off switch
(2) further forwards ➍.
To switch off the power tool, release the on/off switch (2);
or, if the switch is locked, briefly press the on/off switch (2)
and then release it.
Switching On Without Locking Mechanism
To start the power tool, first press the on/off switch (2) ➊,
then slide it forwards ➋ and then press and hold it ➌.
To switch off the power tool, release the on/off switch (2).
Always check abrasive tools before using them. The
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abrasive tool must be fitted properly and be able to
move freely. Carry out a test run for at least one
minute with no load. Do not use abrasive tools that are
damaged, run untrue or vibrate during use. Damaged
abrasive tools can burst apart and cause injuries.
Maintenance and Service
Maintenance and Cleaning
Pull the plug out of the socket before carrying out any
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work on the power tool.
To ensure safe and efficient operation, always keep
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the power tool and the ventilation slots clean.
In extreme conditions, always use a dust extractor if
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possible. Blow out ventilation slots frequently and in-
stall a residual current device (RCD) upstream. When
machining metals, conductive dust can settle inside the
power tool, which can affect its protective insulation.
Store and handle the accessories carefully.
In order to avoid safety hazards, if the power supply cord
needs to be replaced, this must be done by Bosch or by an
after-sales service centre that is authorised to repair Bosch
power tools.
Dust box
To ensure optimum dust protection, we recommend clean-
ing the dust box (3) daily or at regular intervals after use.
The cleaning intervals depend on usage.
After-Sales Service and Application Service
Our after-sales service responds to your questions concern-
ing maintenance and repair of your product as well as spare
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