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OBJ_BUCH-2568-002.book Page 36 Tuesday, November 8, 2016 1:33 PM
36 | English
– Using open-end spanner 13, unscrew collet chuck 3 by
turning anticlockwise, while counter-holding with the off-
set screwdriver 27 in the slot of the eccentric bolt.
– To mount a collet chuck, insert it into the grinder spindle.
Afterwards, screw in the collet chuck again with open-end
spanner 13 by turning clockwise, while counter-holding
with the offset screwdriver 27 in the slot of the eccentric
bolt.
– Turn the offset screwdriver 27 anticlockwise, until collet
chuck 3 is drawn into the grinder spindle 4.
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
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 figures E – F)
– Loosen the two screws 17 and pull the plug insert 16 out of
the plug housing of the CEE plug 19.
– Cut off the plastic sleeve 20 according to the diameter of
the specialty cable of the power tool and insert the special-
ty cable through the CEE plug housing.
1 609 92A 36H | (8.11.16)
– Insert the four conductors through the cable strain relief
15.
– Loosen the four small screws 18 in the plug insert 16 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 18 in the plug insert
16 to affix the conductors.
– Now, tighten the screws of the cable strain relief 15 so that
the cable clamp goes around the complete cable sheath,
ensuring that no pressure is on the conductor ferrules.
– Reinsert plug insert 16 into the housing of the CEE plug 19
and tighten both screws 17 again.
– Afterwards, check the proper function of the protective
conductor.
– Insert the CEE plug 19 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 37), switch the power tool off immediate-
ly and disconnect it from the power supply.
– Loosen the two screws 17 again and pull the plug insert 16
out of the plug housing of the CEE plug 19.
– Loosen the conductor ferrules of the black and brown con-
ductors from their contact tubes.
– Now, insert the conductor ferrule of the black conductor
L3 into contact tube L1, and the conductor ferrule of the
brown conductor L1 into contact tube L3.
– Firmly tighten the small screws 18 in the plug insert 16 to
affix the conductors.
– Reinsert plug insert 16 into the housing of the CEE plug 19
and tighten both screws 17 again.
– Afterwards, check the proper function of the protective
conductor.
– Reconnect the power tool to the power supply.
Operation
Starting Operation
The voltage and frequency of the power source must
correspond with the data on the type plate of the power
tool.
.
Bosch Power Tools
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