Grinding/Cutting Disc - Bosch GWS Professional 22-180 Instrucciones De Servicio

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| English
for different applications, with different accessories or
poorly maintained, the vibration emission may differ. This
may significantly increase the exposure level over the total
working period. An estimation of the level of exposure to
vibration should also take into account the times when the
tool is switched off or when it is running but not actually
doing the job. This may significantly reduce the exposure
level over the total working period. Identify additional
safety measures to protect the operator from the effects of
vibration such as: maintain the tool and the accessories,
keep the hands warm, organisation of work patterns.
Assembly
Mounting the protective devices
► Before any work on the machine itself, pull the mains
plug.
Note: After breakage of the grinding disc during operation
or damage to the holding fixtures on the protection guard/
power tool, the machine must promptly be sent to an after-
sales service agent for maintenance (for addresses, see
section "Aftersales Service and Customer Assistance".
Protection guard for grinding
Place the protection guard 7 on the spindle collar. Adjust the
position of the protection guard 7 to the requirements of the
operation. Lock the protection guard 7 tightening the locking
screw 8 with an allen key.
► Adjust the protection guard 7 in such a manner that
sparking is prevented in the direction of the operator.
Note: The encoding keys on the protection guard 7 ensure
that only a protection guard that fits the machine type can
be mounted.
Protection guard for cutting
► For cutting metal, always work with the protection
guard for cutting 13.
► For cutting stone, always work with the cutting guide
with dust extraction protection guard 19.
The protection guard for cutting 13 is mounted in the same
manner as the protection guard for grinding 7.
Auxiliary handle
► Operate your machine only with the auxiliary handle
4 and 5.
Screw the auxiliary handle 4 on the right, left or center of the
machine head depending on the working method.
Vibration-dampening Auxiliary Handle
The vibration-dampening auxiliary handle reduces the
vibrations, making operation more comfortable and secure.
► Do not make any alterations to the auxiliary handle.
Mounting the grinding tools
► Before any work on the machine itself, pull the mains
plug.
► Grinding and cutting discs become very hot while
F 000 622 319 | 10.2011
Manual GWS 22-180.indd 28
working; do not touch until they have cooled.
Clean the grinder spindle 6 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. Otherwise, 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 reducers or adapters. When using diamond
cutting discs, pay attention that the direction-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 11 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 other parts.
Mounting flange for grinding spindle M
14 and 5/8: An O-ring (plastic part) is
inserted in the mounting flange 9 around
the centring collar. If the O-ring is missing
or is damaged, it must in all cases be
replaced before the mounting flange 9 is
mounted.
Flap disc
► For operations with the flap disc, always mount the
hand guard 16.
See graphics page for the mounting sequence. Screw on the
round nut 11 and tighten with the two-pin spanner.
Cup brush/disc brush
► For operations with the cup brush/wheel brush,
always mount the hand guard 16.
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 spanner.
Quick-clamping nut
For convenient changing of grinding tools without the use of
additional tools, you can use the quick-clamping nut 12
instead of the clamping nut 11 .
► The quick-clamping nut 11 may be used only for
grinding or cutting discs.
Use only a flawless, undamaged quick-clamping nut 11.
When screwing on, pay attention that the side of the
quick-clamping nut 11 with printing does not face the
grinding disc; the arrow must point to the index mark 23.
Bosch Power Tools
29/11/11 08:34