Bosch GWS Professional 24-230 JVX Originalbetriebsanleitung Seite 20

OBJ_BUCH-769-009.book Page 21 Wednesday, April 2, 2014 1:14 PM
Vibration Damper
The integrated vibration damper reduces occurring vibra-
tions.
 Do not continue to use the power tool when the damp-
ing element is damaged.
Hand Guard
 For operations with the rubber sanding plate 18 or with
the cup brush/wheel brush/flap disc, always mount the
hand guard 17.
The hand guard 17 is fastened with the auxiliary handle 4.
Mounting the Grinding Tools
 Before any work on the machine itself, pull the mains
plug.
 Do not touch grinding and cutting discs before they
have cooled down. The discs can become very hot while
working.
Note: It is recommended to use the quick-clamping nut 13.
When using clamping nut 12, an increased expenditure of
force must be taken into account when loosening the clamp-
ing nut.
Clean the grinder spindle 5 and all parts to be mounted.
For clamping and loosening the grinding tools, lock the grind-
er spindle with the spindle lock button 1.
 Actuate the spindle lock button only when the grinder
spindle is at a standstill. Otherwise, the machine may be-
come damaged.
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
25
tighten the quick-clamping
nut, firmly turn the grinding
disc in clockwise direction.
Bosch Power Tools
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, al-
ways 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.
English | 21
1 609 92A 0MK | (2.4.14)