▶ Check the power tool's supply cord at regular intervals and have it replaced by a qualified specialist if
found to be damaged. If the power tool's supply cord is damaged it must be replaced with a specially-
prepared and approved supply cord available from Hilti Customer Service. Check extension cords at
regular intervals and replace them if found to be damaged. Do not touch the supply cord or extension
cord if it is damaged while working. Disconnect the supply cord plug from the power outlet. Damaged
supply cords or extension cords present a risk of electric shock.
▶ Dirty or dusty power tools that have been used frequently for work on conductive materials should be
checked at regular intervals at a Hilti Service Center. Dust (especially dust from conductive materials) or
dampness adhering to the surface of the power tool may, under unfavorable conditions, lead to electric
shock.
▶ Switch the power tool off and unplug the supply cord in the event of a power failure or interruption in the
electric supply. This will prevent accidental restarting when the electric power returns.
3 Description
3.1 Product overview
1
Chuck
@
Air vents
;
Side handle
=
Knob
%
On/off switch
&
Grip
(
3.2 Intended use
The product described is an electrically powered breaker for heavy chiseling work.
It is designed for breaking or demolishing concrete, masonry, stone and asphalt.
▶ Operation is permissible only when connected to a power source providing a voltage and frequency in
compliance with the information given on the type identification plate.
3.3 Possible misuse
This product is not suitable for working on hazardous materials.
This product is not suitable for working in a damp environment.
3.4 Active Vibration Reduction (AVR)
The breaker is equipped with an Active Vibration Reduction (AVR) system, which reduces vibration
significantly.
3.5 Power level indicator
The breaker is equipped with a power level indicator LED.
Chiseling power can be reduced to approx. 70% by pressing the power level selector switch. The power
level LED then lights up, indicating reduced power.
3.6 Service indicator information
The breaker is equipped with a service indicator LED.
Status
The service indicator lights red.
The service indicator blinks red.
Note
Bring the product to Hilti Service in good time. This will help to ensure that it's always ready for use.
4
English
Printed: 24.01.2017 | Doc-Nr: PUB / 5165611 / 000 / 04
Power level selector switch
)
Connector on electric tool
+
Supply cord with keyed, releasable plug
§
connector
Service indicator
/
Power level indicator
:
Meaning
•
End of service interval – servicing is due.
•
A fault has occurred in the tool.
•
The overheating prevention cut-out has been
activated.
•
The voltage provided by the electric supply is
too high.