Dust/Chip Extraction; Starting Operation - Bosch GWS Professional 20-230 H Notice Originale

OBJ_BUCH-827-008.book Page 15 Monday, October 24, 2016 2:46 PM
Rotating the Main Handle
(GWS 24-230 JVX/GWS 26-230 B)
 Before any work on the machine itself, pull the mains
plug.
The main handle 34 can be rotated with respect to the ma-
chine housing toward the left or right in steps of 90°. In this
manner, the On/Off switch can be brought into a more con-
venient position for special working situations, e.g., for cut-
ting operations using the cutting guide with dust extraction
protection guard 18 or for left-handed persons.
Press the handle unlocking button 35 in the direction of the
arrow and at the same time turn the main handle 34 to the re-
quested position until it latches.
Rotating the Machine Head (GWS 20-230 H/
GWS 22-180 H/GWS 22-230 H/JH/
GWS 24-180 H/GWS 24-230 H/JH/
GWS 26-180 H/GWS 26-230 B/H)
 Before any work on the machine itself, pull the mains
plug.
The machine head can be
rotated with respect to
the machine housing in
90° steps. In this man-
ner, the On/Off switch
can be brought into a
more convenient position
for special working situa-
tions, e. g., for cutting op-
erations using the cutting
guide with dust extrac-
tion protection guard 18 or for left-handed persons.
Completely unscrew the four screws. Rotate the machine
head carefully, without removing it from the housing, to the
new position. Screw in and tighten the four screws again.

Dust/Chip Extraction

 Dusts from materials such as lead-containing coatings,
some wood types, minerals and metal can be harmful to
one's health. Touching or breathing-in the dusts can cause
allergic reactions and/or lead to respiratory infections of
the user or bystanders.
Certain dusts, such as oak or beech dust, are considered
as carcinogenic, especially in connection with wood-treat-
Bosch Power Tools
ment additives (chromate, wood preservative). Materials
containing asbestos may only be worked by specialists.
– As far as possible, use a dust extraction system suita-
ble for the material.
– Provide for good ventilation of the working place.
– It is recommended to wear a P2 filter-class respirator.
Observe the relevant regulations in your country for the
materials to be worked.
 Prevent dust accumulation at the workplace. Dusts can
34
easily ignite.
35
Operation

Starting Operation

 Observe correct mains voltage! The voltage of the pow-
er source must agree with the voltage specified on the
nameplate of the machine. Power tools marked with
230 V can also be operated with 220 V.
When operating the machine with power from mobile genera-
tors that do not have sufficient reserve capacity or are not
equipped with suitable voltage control with starting current
amplification, loss of performance or untypical behavior can
occur upon switching on.
Please observe the suitability of the power generator being
used, particularly with regard to the mains voltage and fre-
quency.
Switching On and Off
To start the power tool, press the On/Off switch 2 forward
and then down.
To lock-on the pressed On/Off switch 2, push the On/Off
switch 2 further forward.
To switch off the power tool, release the On/Off switch 2, or
when it is locked, briefly press the On/Off switch 2 and then
release it.
To save energy, only switch the power tool on when using it.
Switch Version without Lock-on (country-specific):
To start the power tool, press the On/Off switch 2 forward
and then down.
To switch off the machine, release the On/Off switch 2.
 Check grinding tools before using. The grinding tool
must be mounted properly and be able to move freely.
Carry out a test run for at least one minute with no load.
Do not use damaged, out-of-centre or vibrating grind-
ing tools. Damaged grinding tools can burst and cause in-
juries.
Run-on Brake (GWS 24-230 JVX)
The power tool is equipped with the Bosch
Brake System, a patented electromechani-
cal run-on brake.
When switching off or when the power sup-
ply is interrupted, the machine comes to a
complete stop within a few seconds. This
means a reduction of the run-on time of approx. 70 % when
compared with angle grinders without run-on brake, which al-
lows for the power tool to be placed down sooner.
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1 609 92A 2C9 | (24.10.16)