Dust/Chip Extraction; Starting Operation; Working Advice - BTI WKS 230 E Manual Original

OBJ_BUCH-1020-003.book Page 44 Wednesday, July 22, 2015 1:32 PM

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 reac-
tions and/or lead to respiratory infections of the
user or bystanders.
Certain dust, such as oak or beech dust, is con-
sidered carcinogenic, especially in connection
with wood-treatment additives (chromate, wood
preservative).Materials containing asbestos may
only be worked by specialists.
– As far as possible, use a dust extraction sys-
tem suitable for the material.
– Provide for good ventilation of the working
place.
– It is recommended to wear a P2 filter-class res-
pirator.
Observe the relevant regulations in your country
for the materials to be worked.
 Prevent dust accumulation at the workplace.
Dust can easily ignite.
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 op-
erated with 220 V.
When operating the machine with power from mo-
bile generators that do not have sufficient reserve
capacity or are not equipped with suitable voltage
control with starting current amplification, loss of
performance or untypical behavior can occur upon
switching on.
Please observe the suitability of the power genera-
tor being used, particularly with regard to the mains
voltage and frequency.
Switching On and Off
To start the power tool, press the On/Off switch 2
forward and then down.
To lock-on the pressed On/Off switch 2, push the
On/Off switch 2 further forward.
To switch off the power tool, release the On/Off
switch 2, or when it is locked, briefly press the
On/Off switch 2 and then release it.
To save energy, only switch the power tool on
when using it.
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Switch Version without Lock-on (country-
specific):
To start the power tool, press the On/Off switch 2
forward and then down.
To switch off the machine, release the On/Off
switch 2.
 Check grinding tools before using. The grind-
ing 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. Dam-
aged grinding tools can burst and cause injuries.
Run-on Brake (WKS 230 SE)
When switching off or when the power supply is in-
terrupted, the machine comes to a complete stop
within a few seconds. This means a reduction of
the run-on time of approx. 70 % when compared
with angle grinders without run-on brake, which al-
lows for the power tool to be placed down sooner.
Note: When the braking effect decreases noticea-
bly, the run-on brake has failed. The power tool
should be sent immediately to an after-sales ser-
vice.
Restarting Protection
The restarting protection feature prevents uncon-
trolled restarting of the machine after an interrup-
tion in the power supply.
To restart the operation, switch the On/Off switch
2 to the Off position and start the machine again.
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.
Note: When the machine runs at full speed imme-
diately after switching on, the reduced starting cur-
rent and the restarting protection have failed. The
power tool should be sent immediately to an after-
sales service.

Working Advice

 Exercise caution when cutting slots in struc-
tural walls; see Section "Information on Struc-
tures".
 Clamp the workpiece if it does not remain sta-
tionary due to its own weight.
 Do not strain the machine so heavily that it
comes to a standstill.
 After heavily straining the power tool, continue
to run it at no-load for several minutes to cool
down the accessory.
 Do not touch grinding and cutting discs before
they have cooled down. The discs can become
very hot while working.
 Do not use the power tool with a cut-off stand.
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