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• The speed adjusting dial can be turned only as far
as 5 and back to 1. Do not force it past 5 or 1, or
the speed adjusting function may no longer work.
Selecting the action mode
CAUTION:
• Do not rotate the change lever when the tool is
running. The tool will be damaged.
• To avoid rapid wear on the mode change
mechanism, be sure that the change lever is
always positively located in one of the action mode
positions.
Hammer drilling mode
1
2
014022
For drilling in concrete, masonry, etc., rotate the change
lever to the
symbol. Use a tungsten-carbide tipped bit.
Hammering mode (Switch trigger mode)
1
2
014024
For chipping, scaling or demolition operations, rotate the
change lever to the
symbol. Use a bull point, cold
chisel, scaling chisel, etc.
Hammering mode (Switch button mode)
2
1
014023
For continuous chipping, scaling or demolition
operations, rotate the change lever to the
symbol.
1
014880
The switch button projects out and lights in red.
Use a bull point, cold chisel, scaling chisel, etc.
NOTE:
• When using the tool in the symbol mode, the
switch trigger does not work but only the switch
button works.
Torque limiter
The torque limiter actuates when torque reaches a
certain level. The motor disengages from the output
shaft. When this happens, the bit stops turning.
CAUTION:
• As soon as the torque limiter actuates, switch off
the tool immediately. This helps to prevent
premature wear of the tool.
Indicator lamp
1
2
014032
The green power-ON indicator lamp lights up when the
tool is plugged in. If the indicator lamp does not light up,
the mains cord or the controller may be defective.
When the indicator lamp lights up but the tool does not
start even the tool is switched on, the carbon brushes
may be worn out, or the controller, the motor or the
ON/OFF switch may be defective.
If above symptoms occur, stop using the tool
immediately and ask your local service center.
The red service indicator lamp lights up when the
carbon brushes are nearly worn out to indicate that the
tool needs servicing. After some period of use, the
motor automatically shuts off.
1. Power-ON
indicator lamp
(green)
2. Service indicator
lamp (red)
1. Switch button
1. Change lever
2. Pointer
1. Change lever
2. Pointer
1. Change lever
2. Pointer