Bosch GWS 27-230 Professional Manual Original página 20

20 | English
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 (15) when working with the
u
rubber sanding plate (17) or with the cup brush/disc
brush/flap disc.
Attach the hand guard (15) to the side handle (3).
Fitting the Abrasive Tools
Pull the plug out of the socket before carrying out any
u
work on the power tool.
Do not touch grinding and cutting discs until they have
u
cooled down. The discs can become very hot while work-
ing.
Clean the grinding spindle (4) 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.
Quick-clamping nut
To change the abrasive tool easily without having to use any
additional tools, you can use the quick-clamping nut (11) in-
stead of the clamping nut (9).
The quick-clamping nut (11) may be used only for
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grinding or cutting discs.
Only use quick-clamping nuts (11) that are in good work-
ing order and not damaged.
When screwing on, make sure that the printed side of the
quick-clamping nut (11) is not facing the grinding disc;
the arrow must be pointing towards the index mark (24).
Press the spindle lock button (1) to
(24)
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.
1 609 92A 8TP | (19.09.2023)
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 (9) 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 (7). If the O-ring is missing or
damaged, the mounting flange (7)
must be replaced before operation
can resume.
Flap disc
Always fit the hand guard (15) when working with the
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flap disc.
Rubber sanding pad
Always fit the hand guard (15) when working with the
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rubber sanding pad (17).
See the graphics page for fitting instructions.
Before fitting the rubber sanding pad (17), place the two
spacer discs (16) on the grinding spindle (4).
Screw on the round nut (19) and tighten with the two-pin
spanner.
Cup brush/disc brush
Always fit the hand guard (15) when working with the
u
cup brush or disc brush.
See the graphics page for fitting instructions.
The cup brush/disc brush must be screwed onto the grinding
spindle until it rests firmly against the grinding spindle flange
at the end of the grinding spindle thread. Tighten the cup
brush/disc brush with an open-ended spanner.
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.
Bosch Power Tools