Starting Operation - Berner BHD-2/26 830 W Manual Original

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OBJ_BUCH-3323-001.book Page 19 Tuesday, September 19, 2017 4:15 PM
Dust Extraction (Accessories)
 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.
The vacuum cleaner must be suitable for the mate-
rial being worked.
When vacuuming dry dust that is especially detri-
mental to health or carcinogenic, use a special vac-
uum cleaner.
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.
Setting the operating mode
The operating mode of the power tool is selected
with the mode selector switch 11.
– To change the operating mode, push the release
button 10 and turn the mode selector switch 11
to the requested position until it can be heard to
latch.
Note: Change the operating mode only when the
machine is switched off! Otherwise, the machine
can be damaged.
19 | English
Position for hammer drilling in con-
crete or stone
Position for drilling without impact
in wood, metal, ceramic and plastic
as well as for screwdriving
Vario-Lock position for adjustment
of the chiselling position
The mode selector switch 11 does
not latch in this position.
Position for chiselling
Reversing the rotational direction
The rotational direction switch 7 is used to reverse
the rotational direction of the machine. However,
this is not possible with the On/Off switch 9 actuat-
ed.
Right rotation: Turn the selector switch for drill-
ing/hammer drilling 7 on both sides to the stop
in the position
.
Left rotation: Turn the selector switch for drill-
ing/hammer drilling 7 on both sides to the stop
in the position
.
– Set the direction of rotation for hammer drilling,
drilling and chiselling always to right rotation.
Switching On and Off
– To start the machine, press the On/Off switch 9.
– To lock the On/Off switch, keep it pressed and
additionally push the lock-on button 8.
– To switch off the machine, release the On/Off
switch 9. When the On/Off switch 9 is locked,
press it first and then release it.
To save energy, only switch the power tool on
when using it.
Setting the Speed/Impact Rate
The speed/impact rate of the switched on power
tool can be variably adjusted, depending on how
far the On/Off switch 9 is pressed.
Light pressure on the On/Off switch 9 results in low
speed/impact rate. Further pressure on the switch
increases the speed/impact rate.
1 609 92A 41X • 19.9.17

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