Bosch GWS Professional 27-180 PR Originalbetriebsanleitung Seite 20

20 | English
Protective guard for grinding
Place the protective guard (6) on the spindle collar. Adjust
the position of the protective guard (6) to the requirements
of the operation and lock the protective guard (6) with the
locking screw (7).
Adjust the protective guard (6) such that sparking in
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the direction of the operator is prevented.
Protective guard for cutting
Always use the protective guard for cutting (14) when
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cutting with bonded abrasives.
Provide sufficient dust extraction when cutting stone.
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The protective guard for cutting (14) is fitted in the same
way as the protective guard for grinding (6).
Extraction guard for cutting with a guide block
The extraction guard for cutting with a guide block (22) is fit-
ted in the same way as the protective guard for grinding (6).
Side handle
Do not operate your power tool without the side
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handle (4).
Do not continue to use the power tool if the auxiliary
u
handle is damaged. Do not make any alterations to the
auxiliary handle.
Screw the side handle (4) on the left or right of the machine
head depending on how your are working.
Low-vibration auxiliary handle
The low-vibration auxiliary handle re-
duces vibration, enabling the tool to
be used safely and more comfortably.
Do not make any alterations of any kind to the auxili-
u
ary handle.
Do not continue to use a damaged auxiliary handle.
Hand guard
Always fit the hand guard (16) when working with the
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rubber sanding plate (18) or with the cup brush/disc
brush/flap disc.
Attach the hand guard (16) to the side handle (4).
Fitting the Abrasive Tools
Pull the plug out of the socket before carrying out any
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work on the power tool.
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 (5) and all the parts to be fitted.
Lock the grinding spindle with the spindle lock button (1)
before clamping and releasing the abrasive tools.
Do not press the spindle lock button while the grind-
u
ing spindle is moving. The power tool may become dam-
aged if you do this.
1 609 92A 8TW | (25.09.2023)
Quick-clamping nut
To change the abrasive tool easily without having to use any
additional tools, you can use the quick-clamping nut (12) in-
stead of the clamping nut (10).
The quick-clamping nut (12) may be used only for
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grinding or cutting discs.
Only use quick-clamping nuts (12) that are in good work-
ing order and not damaged.
When screwing on, make sure that the printed side of the
quick-clamping nut (12) is not facing the grinding disc;
the arrow must be pointing towards the index mark (25).
Press the spindle lock button (1) to
(25)
lock the grinding spindle. To tighten
the quick-clamping nut, turn the grind-
ing disc firmly clockwise.
If the quick-clamping nut has been at-
tached correctly and is not damaged,
you can loosen it by hand by turning
the knurled ring anticlockwise. If the
quick-clamping nut is stuck, do not
attempt to loosen it with pliers – al-
ways use the two-pin spanner. Posi-
tion the two‑pin spanner as shown in
the figure.
Grinding/cutting disc
Pay attention to the dimensions of the abrasive tools. The
diameter of the hole must match that of the mounting flange.
Do not use an adapter or reducer.
When using diamond cutting discs, ensure that the arrow in-
dicating the direction of rotation on the diamond cutting disc
matches the direction of rotation of the power tool (see the
direction of rotation arrow on the machine head).
See the graphics page for assembly instructions.
To fasten the grinding/cutting disc, screw on the clamping
nut (10) and tighten with the two-hole spanner. (see " Quick-
clamping nut ", page 20).
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.
A plastic part (O-ring) is fitted around
the centring collar in the mounting
flange (8). If the O-ring is missing or
damaged, the mounting flange (8)
must be replaced before operation
can resume.
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