Bosch GWS 18V-8 Professional Notice Originale page 12

12 | English
Protective guard for cutting
Always use the protective guard for cutting (12) when
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cutting with bonded abrasives.
Provide sufficient dust extraction when cutting stone.
u
The protective guard for cutting (12) is fitted in the same
way as the protective guard for grinding (11).
Extraction guard for cutting with a guide block
The extraction guard for cutting with a guide block (31) is fit-
ted in the same way as the protective guard for grinding
(11).
Hand guard
Always fit the hand guard (22) when working with the
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rubber sanding pad (23) or with the cup brush/conical
brush/diamond annular cutter.
Attach the hand guard (22) to the auxiliary handle (8)/(9).
Standard auxiliary handle/low-vibration auxiliary handle
Screw the auxiliary handle (8)/(9) on the right or left of the
machine head depending on the working method.
Do not operate your power tool without the auxiliary
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handle (8)/(9).
Do not continue to use the power tool if the auxiliary
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handle (8)/(9) is damaged. Do not make any altera-
tions to the auxiliary handle (8)/(9).
The low-vibration auxiliary handle (9)
reduces vibration, enabling the tool to
be used safely and more comfortably.
Fitting the Abrasive Tools
Before carrying out any work on the power tool (e.g.
u
maintenance, tool change etc.), remove the battery
from the power tool. There is risk of injury from uninten-
tionally pressing the on/off switch.
Do not touch grinding and cutting discs until they have
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cooled down. The discs can become very hot while work-
ing.
Clean the grinding spindle (21) and all the parts to be fitted.
Lock the grinding spindle with the spindle lock button (3)
before clamping and releasing the abrasive tools.
Do not press the spindle lock button while the grind-
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ing spindle is moving. The power tool may become dam-
aged if you do this.
Grinding/Cutting Disc
Pay attention to the dimensions of the grinding tools. The
mounting hole diameter must fit the mounting flange without
play. Do not use reducers or adapters.
When using diamond cutting discs, pay attention that the
direction-of-rotation arrow on the diamond cutting disc and
the direction of rotation of the machine (see direction-of-ro-
tation arrow on the machine head) agree.
See graphics page for the mounting sequence.
To fasten the grinding/cutting disc, screw on the clamping
nut (19) and tighten with the two-hole spanner.
1 609 92A 9LG | (28.05.2024)
After fitting the abrasive tool, check that the abrasive
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tool is fitted correctly and can turn freely before
switching on the power tool. Make sure that the abras-
ive tool does not brush against the protective guard or
other parts.
Mounting flange for grinding spindle M 14: A
plastic part (O-ring) is fitted around the cent-
ring collar in the mounting flange (13). If the
O-ring is missing or damaged, the mounting
flange (13) must be replaced before operation
can resume.
Approved abrasive tools
You can use all the abrasive tools mentioned in these operat-
ing instructions.
-1
The permissible speed [min ] or the circumferential speed
[m/s] of the abrasive tools used must at least match the val-
ues given in the table.
It is therefore important to observe the permissible rota-
tional/circumferential speed on the label of the abrasive
tool.
max. [mm]
D b
100 6.3
115 7
125 7
100 –
115 –
125 –
70 30
75 30
83 –
Rotating the machine head (see figure A)
Before carrying out any work on the power tool (e.g.
u
maintenance, tool change etc.), remove the battery
from the power tool. There is risk of injury from uninten-
tionally pressing the on/off switch.
The machine head can be rotated in 90° increments. In this
way, the on/off switch can be brought into a more favourable
handling position for particular applications, e.g. for left-
handed tool users.
Completely unscrew the four screws (➊). Rotate the ma-
chine head carefully, without removing it from the hous-
ing, into the new position (➋). Screw in and retighten the
four screws (➌).
[mm]
–1
d [min ] [m/s]
16.0 11000 80
22.2 11000 80
22.2 11000 80
– 11000 80
– 11000 80
– 11000 80
M 10 11000 45
M 14 11000 45
M 14 11000 80
Bosch Power Tools