Dust/Chip Extraction; Connection To The Power Supply - Bosch HWS Serie Manual Original

OBJ_BUCH-2482-003.book Page 20 Friday, December 9, 2016 12:33 PM
20 | English
Vibration-dampening
Auxiliary Handle
(see figure B)
The vibration-dampening
auxiliary handle reduces the vibrations, making operation
more comfortable and secure.
 Operate your machine only with the auxiliary handle 2.
– Screw the auxiliary handle 2 on the right or left of the ma-
chine head depending on the working method.
 Do not make any alterations to the auxiliary handle.
 Do not continue to use an auxiliary handle if it is dam-
aged.
Mounting the Grinding Tools
General Information
 Disconnect the power supply before making any ad-
justments, changing accessories, or placing the ma-
chine aside. This safety measure prevents accidental
starting of the power tool.
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 3 and all parts to be mounted.
 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.
Mounting Grinding Wheels (see figure C)
Installation
– Make sure that the fitting protection guard is mounted (see
"Mounting the Protective Devices", page 19).
– Place the clamping flange 10 on the grinder spindle 3.
– Place the required grinding tool 11 (grinding wheel) on the
grinder spindle 3 in the correct direction of rotation.
– Place the face plate 13 and clamping nut 12 on the spindle
thread.
– Tighten the clamping nut with the hex key 20 while holding
the grinder spindle 3 by placing an open-end spanner on
its spanner flat.
Removal
– Use an open-end spanner on the spanner flat of the grinder
spindle 3 to hold it in place.
– Unscrew the clamping nut 12 from the grinder spindle us-
ing the hex key 20 while holding the spindle by placing the
open-end spanner on its spanner flat.
– Then pull the face plate, the grinding tool and the mounting
flange off the grinder spindle.

Dust/Chip Extraction

 Dust 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 dust can cause
allergic reactions and/or lead to respiratory infections of
the user or bystanders.
1 609 92A 36N | (9.12.16)
Certain dust, such as oak or beech dust, is considered car-
cinogenic, especially in connection with wood-treatment
additives (chromate, wood preservative).Materials con-
taining asbestos may only be worked by specialists.
– As far as possible, use a dust extraction system suitable
for the material.
– 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. Dust 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 D1 – D2)
– Loosen the two screws 16 and pull the plug insert 15 out of
the plug housing of the CEE plug 18.
– Cut off the plastic sleeve 19 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
14.
– Loosen the four small screws 17 in the plug insert 15 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 17 in the plug insert
15 to affix the conductors.
– Now, tighten the screws of the cable strain relief 14 so that
the cable clamp goes around the complete cable sheath,
ensuring that no pressure is on the conductor ferrules.
Bosch Power Tools