Dust/Chip Extraction; Starting Operation; Working Advice - Bosch GWS 880 Original Instructions Manual

OBJ_BUCH-3022-001.book Page 20 Tuesday, August 22, 2017 11:29 AM
20 | English
without removing it from the housing, to the new position.
Screw in and tighten the four screws again.

Dust/Chip Extraction

 Dust 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 dust can cause
allergic reactions and/or lead to respiratory infections of
the user or bystanders.
Certain dust, such as oak or beech dust, is considered car-
cinogenic, especially in connection with wood-treatment
additives (chromate, wood preservative). Materials con-
taining asbestos may only be worked by specialists.
– As far as possible, use a dust extraction system suitable
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. Dust can
easily ignite.
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.
Products sold in AUS and NZ only: Use a residual current de-
vice (RCD) with a rated residual current of 30 mA or less.
 Hold power tool by insulated gripping surfaces 20 and
auxiliary handle 3 only. The accessory may contact hid-
den wiring or its own cord. Accessory contacting a "live"
wire may make exposed metal parts of the power tool "live"
and shock the operator.
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.
1 609 92A 3FT | (22.8.17)
The machine head can be Switching On and Off
rotated with respect to
To start the power tool, push the On/Off switch 2 forwards.
the machine housing in
To lock the On/Off switch 2, press the On/Off switch 2 down
90° steps. In this man-
at the front until it latches.
ner, the On/Off switch
To switch off the power tool, release the On/Off switch 2 or,
can be brought into a
if it is locked, briefly push down the back of the On/Off switch
more convenient posi-
2 and then release it.
tion for special working
 Check grinding tools before using. The grinding tool
situations, e.g. for left-
must be mounted properly and be able to move freely.
handed persons.
Carry out a test run for at least one minute with no load.
Completely unscrew the
Do not use damaged, out-of-centre or vibrating grind-
four screws. Rotate the
ing tools. Damaged grinding tools can burst and cause in-
machine head carefully,
juries.
To save energy, only switch the power tool on when using it.
Restarting Protection
The restarting protection feature prevents uncontrolled re-
starting of the machine after an interruption in the power sup-
ply.
To restart the operation, switch the On/Off switch 2 to the
Off position and start the machine again.

Working Advice

 Before any work on the machine itself, pull the mains
plug.
 Exercise caution when cutting slots in structural walls;
see Section "Information on Structures".
 Clamp the workpiece if it does not remain stationary
due to its own weight.
 Do not strain the machine so heavily that it comes to a
standstill.
 After heavily straining the power tool, continue to run
it at no-load for several minutes to cool down the acces-
sory.
 Do not touch grinding and cutting discs before they
have cooled down. The discs can become very hot while
working.
 Do not use the power tool with a cut-off stand.
Rough Grinding
 Never use a cutting disc for roughing.
The best roughing results are achieved when setting the ma-
chine at an angle of 30° to 40°. Move the machine back and
forth with moderate pressure. In this manner, the workpiece
will not become too hot, does not discolour and no grooves
are formed.
Flap Disc
With the flap disc (accessory), curved surfaces and profiles
can be worked.
Flap discs have a considerably higher service life, lower noise
levels and lower sanding temperatures than conventional
sanding sheets.
Bosch Power Tools