Bosch GWS 24-230 JVX Professional User Manual

Page 20

English | 21

Bosch Power Tools

1 609 92A 0B2 | (1.8.13)

Quick-clamping Nut
With the quick-clamping nut 13, grinding tools can be mount-
ed without additional tools.
 Use only a flawless, undamaged quick-clamping nut 13.
When screwing on, pay attention that the side of the
quick-clamping nut 13 with printing does not face the
grinding disc; the arrow must point to the index mark 25.

Lock the grinder spindle with
the spindle lock button 1. To
tighten the quick-clamping
nut, firmly turn the grinding
disc in clockwise direction.

A properly attached, undam-
aged quick-clamping nut can
be loosened by hand when
turning the knurled ring in an-
ticlockwise direction.
Never loosen a tight quick-
clamping nut with pliers. Al-
ways use the two-pin span-
ner. Insert the two-pin span-
ner as shown in the
illustration.

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 di-
rection-of-rotation arrow on the diamond cutting disc and the
direction of rotation of the machine (see direction-of-rotation
arrow on the machine head) agree.

See graphics page for the mounting sequence.

To fasten the grinding/cutting disc, screw on the clamping nut
12 and tighten with the two-pin spanner; see Section “Quick-
clamping Nut ”.
 After mounting the grinding tool and before switching

on, check that the grinding tool is correctly mounted
and that it can turn freely. Make sure that the grinding
tool does not graze against the protection guard or oth-
er parts.

A plastic part (O-ring) is fitted around
the centring collar of mounting flange
10. If the O-ring is missing or dam-
aged, the mounting flange 10 must be
replaced before resuming operation.

Flap Disc
 For operations with the flap disc, always mount the

hand guard 17.

Rubber Sanding Plate
 For operations with the rubber sanding plate 18,

always mount the hand guard 17.

See graphics page for the mounting sequence.

Note: When loosening the round nut 20, an increased ex-
penditure of force must be taken into account.

Cup Brush/Disc Brush
 For operations with the cup brush/wheel brush, always

mount the hand guard 17.

See graphics page for the mounting sequence.

The cup brush/disc brush must be able to be screwed onto
the grinder spindle until it rests firmly against the grinder
spindle flange at the end of the grinder spindle threads. Tight-
en the cup brush/disc brush with an open-end spanner.

Note: When loosening the grinding tool, an increased expend-
iture of force must be taken into account.

Approved Grinding Tools

All grinding tools mentioned in these operating instructions
can be used.

The permissible speed [min

-1

] or the circumferential speed

[m/s] of the grinding tools used must at least match the values
given in the table.

Therefore, observe the permissible rotational/circumferen-
tial speed on the label of the grinding tool.

max.

[mm]

[min

-1

]

[m/s]

180
230

8
8

22.2
22.2

8500
6500

80
80

180
230

–

8500
6500

80
80

100

M 14

8500

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