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Right rotation: Turn the rotational direction switch 8
to the stop in the position
Left rotation: Turn the rotational direction switch 8 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 7 and
keep it pressed.
To switch off the machine, release the On/Off switch
7.
For low temperatures, the power tool reaches the full
hammer/impact capacity only after a certain time.
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 7 is pressed.
Light pressure on the On/Off switch 7 results in low
speed/impact rate. Further pressure on the switch
increases the speed/impact rate.
Safety Clutch
If the tool insert becomes caught or jammed,
the drive to the drill spindle is interrupted.
Because of the forces that occur, always hold
the power tool firmly with both hands and
provide for a secure stance.
If the power tool jams, switch the machine off
and loosen the tool insert. When switching
the machine on with the drilling tool jammed,
high reaction torques can occur.
Changing the Chiselling Position (Vario-Lock)
The chisel can be locked in 12 positions. In this man-
ner, the optimum working position can be set for each
application.
Insert the chisel into the tool holder.
Turn the mode selector switch 5 to the "Vario-Lock"
position (see "Setting the Operating Mode", page 30).
Turn the tool holder to the desired chiselling position.
Turn the mode selector switch 5 to the "chiselling"
position. The tool holder is now locked.
For chiselling, set the rotation direction to right rotation.
Working Advice
Vibration Damper
The integrated vibration damper reduces occurring
vibrations.
1 619 929 846 • 18.6.08
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Maintenance and Service
Maintenance and Cleaning
Before any work on the machine itself, pull
the mains plug.
For safe and proper working, always keep the
machine and ventilation slots clean.
A damaged dust protection cap should be
changed immediately. We recommend having
this carried out by an after-sales service.
If the machine should fail despite the care taken in man-
ufacturing and testing procedures, repair should be
carried out by an after-sales service centre for BTI
power tools.
In all correspondence and spare parts orders, please
always include the 7-digit order number given on the
nameplate of the machine.
WARNING! Important instructions for connecting
a new 3-pin plug to the 2-wire cable.
The wires in the cable are coloured according to the fol-
lowing code:
Do not connect the blue or brown wire to the earth ter-
minal of the plug.
Important: If for any reason the moulded plug is
removed from the cable of this power tool, it must be
disposed of safely.
Disposal
The machine, accessories and packaging should be
sorted for environmental-friendly recycling.
Only for EC countries:
Do not dispose of power tools into
household waste!
According the European Guideline
2002/96/EC for Waste Electrical and
Electronic Equipment and its implemen-
tation into national right, power tools
that are no longer usable must be collected separately
and disposed of in an environmentally correct manner.
Subject to change without notice.
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