Bosch 0 602 211 507 Notice Originale page 21

OBJ_BUCH-2509-002.book Page 21 Tuesday, October 25, 2016 2:36 PM
Changing the Tool (see figure A)
Inserting a Grinding Disc
Make sure that the fitting protection guard is mounted (see
"Mounting the Protective Devices", page 20).
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.
– Clean the grinder spindle 4 and all parts to be mounted.
– Place the clamping flange 5 on the grinder spindle 4.
– Mount the desired grinding accessory 1 (grinding disc) in
the correct rotation direction onto the grinder spindle 4.
– Place the clamping nut 6 onto the spindle thread so that
the central recess of the clamping nut faces upward.
– Tighten the clamping nut with two-pin spanner 7, while
counter-holding the spanner surfaces of the grinder spin-
dle 4 with open-end spanner 9.
 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.
Removing a Grinding Disc
 Grinding discs become very hot while working; do not
touch until they have cooled.
– Hold the grinder spindle 4 on the spanner surfaces with
open-end spanner 9.
– Unscrew the clamping nut 6 from the grinder spindle with
two-pin spanner 7, while counter-holding the spanner sur-
faces with open-end spanner 9.
– Afterwards, pull the grinding tool and the mounting flange
from the grinder spindle.
Dust/Chip Extraction
 Dusts from materials such as lead-containing coatings,
some wood types, minerals and metal can be harmful to
one's health. Touching or breathing-in the dusts can cause
allergic reactions and/or lead to respiratory infections of
the user or bystanders.
Certain dusts, such as oak or beech dust, are considered
as carcinogenic, especially in connection with wood-treat-
ment additives (chromate, wood preservative). Materials
containing asbestos may only be worked by specialists.
– Provide for good ventilation of the working place.
– It is recommended to wear a P2 filter-class respirator.
Observe the relevant regulations in your country for the
materials to be worked.
 Prevent dust accumulation at the workplace. Dusts can
easily ignite.
Connection to the Power Supply
For operation of the power tools, a frequency converter is re-
quired that generates three-phase current with a frequency
according to that listed on the type plate.
Frequency converters are available in various sizes, with dif-
ferent frequencies, secondary voltages and rated outputs.
The choice of the frequency converter depends on the power
Bosch Power Tools
tools to be connected. When selecting a frequency converter,
contact your Bosch-specialist shop for advice.
The machine is provided with a four meter long specialty ca-
ble without plug. To put it into operation, the specialty cable
must be equipped with a four-pole CEE plug (identification
colour green).
Additionally, the machine can be equipped with a commer-
cially available motor protection switch for protection against
overload. The adjustment range of the motor protection
switch must cover the nominal current of the power tool (see
"Technical Data"). The motor protection switch must react in
less than one second.
Please observe the safety warnings and assembly instruc-
tions in the operating instructions of the motor protection
switch!
Mounting the CEE Plug (see figure B–C)
– Loosen the two screws 12 and pull the plug insert 11 out of
the plug housing of the CEE plug 14.
– Cut off the plastic sleeve 15 according to the diameter of
the specialty cable of the power tool and insert the special-
ty cable through the CEE plug housing.
– Insert the four conductors through the cable strain relief
10.
– Loosen the four small screws 13 in the plug insert 11 and
insert
the conductor ferrule of the brown L1 conductor into con-
tact tube L1,
the conductor ferrule of the blue L2 conductor into contact
tube L2,
the conductor ferrule of the black L3 conductor into con-
tact tube L3,
and the conductor ferrule of the green/yellow conductor
into the earthing contact tube
– Firmly tighten the four small screws 13 in the plug insert
11 to affix the conductors.
– Now, tighten the screws of the cable strain relief 10 so that
the cable clamp goes around the complete cable sheath,
ensuring that no pressure is on the conductor ferrules.
– Reinsert plug insert 11 into the housing of the CEE plug 14
and tighten both screws 12 again.
– Afterwards, check the proper function of the protective
conductor.
– Insert the CEE plug 14 of the power tool into the connec-
tion socket of the frequency converter.
Now, connect the frequency converter to the power supply.
For information on how to connect the frequency converter to
the power supply, see the frequency converter operating in-
structions.
 Afterwards, check the rotation direction!
Checking the Rotation Direction
The rotation direction of the grinder spindle must correspond
with the arrow on the power tool.
If the grinder spindle rotates in the wrong direction when put-
ting into operation for the first time (see "Switching the Power
Tool On/Off", page 22), switch the power tool off immediate-
ly and disconnect it from the power supply.
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1 609 92A 36J | (25.10.16)