Bosch GBR 14 CA Professional Notice Originale page 22

OBJ_BUCH-599-002.book Page 22 Thursday, April 22, 2010 3:59 PM
22 | English
The vacuum cleaner must be approved for the
extraction of masonry dust. Bosch provides suit-
able vacuum cleaners.
Insert a vacuum hose 4 (accessory) into the vac-
uum connection 2. Connect the vacuum hose 4
to a vacuum cleaner (accessory). An overview
for connecting to a vacuum cleaner can be found
at the end of these instructions.
Notes for the Use of Concrete Grinders
Please observe the following notes in order to
reduce the dust emissions occurring while
working.
– Only use combinations of diamond cutting
discs, concrete grinders with mounted guard
and extraction hood as well as dust category
M vacuum cleaners that are recommended
by Bosch. Other combinations can lead to in-
sufficient dust collection and separation.
– Observe the operating instructions of the
vacuum cleaner for maintenance and clean-
ing of the vacuum cleaner, including the fil-
ter. Empty dust collection containers imme-
diately once full. Clean the filters of the
vacuum cleaner regularly and always insert
the filters completely into the vacuum clean-
er.
– Only use vacuum hoses as intended for by
Bosch. Do not manipulate the vacuum hose.
When rocks or chunks of stone/masonry are
drawn into the vacuum hose, cease work and
clean the vacuum hose immediately. Prevent
the vacuum hose from being bent or creased.
– Use the concrete grinder only as intended
for.
– Observe the general requirements for con-
struction sites.
– Provide for good ventilation.
– Ensure that the work area is free of obstruc-
tions. For longer grinding jobs, the vacuum
cleaner must be able to move along freely
and at the right time.
– Wear hearing protection, protective goggles,
dust mask and gloves as required. As dust
mask, use at least a particle-filtering class
FFP 2 half-mask.
– Use a suitable vacuum cleaner for cleaning
the workplace. Prevent settled dust from be-
ing swirled up by sweeping.
3 609 929 B94 | (22.4.10)
Operation
Starting Operation
Observe correct mains voltage! The voltage
of the power source must agree with the
voltage specified on the nameplate of the
machine. Power tools marked with 230 V
can also be operated with 220 V.
Switching On and Off
To start the power tool, push the On/Off switch
6 forwards.
To lock the On/Off switch 6, press the On/Off
switch 6 down at the front until it latches.
To switch off the power tool, release the On/Off
switch 6 or, if it is locked, briefly push down the
back of the On/Off switch 6 and then release it.
Check grinding tools before using. The
grinding tool must be mounted properly
and be able to move freely. Carry out a test
run for at least one minute with no load. Do
not use damaged, out-of-centre or vibrating
grinding tools. Damaged grinding tools can
burst and cause injuries.
Restarting Protection
The restarting protection feature prevents un-
controlled restarting of the machine after an in-
terruption in the power supply.
To restart the operation, switch the On/Off
switch 6 to the Off position and start the ma-
chine again.
Note: Check the function of the restarting pro-
tection feature regularly by having the mains
plug pulled during operation and plugged in
again afterwards.
Reduced starting current
The electronic reduced starting current limits
the power consumption when switching the tool
on and enables operation from a 13 ampere
fuse.
Constant Electronic Control
Constant electronic control holds the speed
constant at no-load and under load, and ensures
uniform working performance.
Bosch Power Tools