Bosch GWS Professional 22-180 JH Original Instructions Manual page 28

OBJ_BUCH-777-004.book Page 29 Wednesday, July 15, 2009 2:55 PM
Mounting the Grinding Tools
Before any work on the machine itself, pull
the mains plug.
Grinding and cutting discs become very hot
while working; do not touch until they have
cooled.
Clean the grinder spindle 4 and all parts to be
mounted.
For clamping and loosening the grinding tools,
lock the grinder spindle with the spindle lock
button 1.
Actuate the spindle lock button only when
the grinder spindle is at a standstill. Other-
wise, the machine may become damaged.
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 reduc-
ers or adapters.
When using diamond cutting discs, pay atten-
tion that the direction-of-rotation arrow on the
diamond cutting disc and the direction of rota-
tion of the machine (see direction-of-rotation ar-
row on the machine head) agree.
See graphics page for the mounting sequence.
To fasten the grinding/cutting disc, screw on
the clamping nut 10 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 free-
ly. Make sure that the grinding tool does
not graze against the protection guard or
other parts.
An O-ring (plastic part) is in-
serted in the mounting flange 8
around the centring collar. If
the O-ring is missing or is
damaged, it must in all cases
be replaced (article number
1 600 210 039) before the
mounting flange 8 is mounted.
Bosch Power Tools
Flap Disc
For operations with the flap disc, always
mount the hand guard 15.
Rubber Sanding Plate
For operations with the rubber sanding
plate 17, always mount the hand guard 15.
See graphics page for the mounting sequence.
Before mounting the rubber sanding plate 17,
put the 2 spacer discs 16 onto the grinder spin-
dle 4.
Screw on the round nut 19 and tighten with the
two-pin spanner.
Cup Brush/Disc Brush
For operations with the cup brush/wheel
brush, always mount the hand guard 15.
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. Tighten the
cup brush/disc brush with an open-end span-
ner.
Grinding Cup
When working with the grinding cup, mount
the special protection guard 12.
The grinding cup 13 should never project further
out of the protection guard 12 than necessary
for the respective grinding application. Adjust
the protection guard 12 accordingly to this di-
mension.
See graphics page for the mounting sequence.
Screw on the clamping nut 10 and tighten it with
the two-pin spanner 14.
1 609 929 R46 | (15.7.09)
English | 29