9. Troubleshooting
Fault Possible cause Remedy
The tool doesn’t
run.
The battery is discharged or fitted
incorrectly.
The battery must engage with an audible
click or, respectively, needs to be
charged.
Electrical fault. Remove the battery from the tool and
contact Hilti.
No hammering
action.
Check the position of the torque and
operating mode setting ring.
Turn the torque and operating mode
setting ring to the hammer drilling
symbol.
The on / off switch
can’t be pressed,
i.e. the switch is
locked.
The forward / reverse switch is in the
middle position (transport lock engaged).
Push the forward / reverse switch to the
left or right.
Running speed
suddenly drops
considerably.
The battery is discharged.
Change the battery and recharge the
discharged battery.
The battery reaches
the end of its
capacity more
quickly than usual.
Battery condition is not optimal.
Charge the battery in refresh charge mode
(please refer to the operating instructions
for the charger).
The battery doesn’t
engage with an
audible double
click.
The retaining lugs on the battery are dirty.
Clean the retaining lugs and check that
the battery engages securely. Contact
Hilti Service if the problem persists.
The tool or the
battery become
very warm.
Electrical fault. Switch the tool off immediately, remove
the battery and contact Hilti Service.
The tool has been overloaded (application
limits exceeded).
Use the right tool for the job (don’t use a
low-powered tool for heavy work).
10. Disposal
Most of the materials from which Hilti tools or machines are manufactured can be recycled. The materials must
be correctly separated before they can be recycled. In many countries, Hilti has already made arrangements
for taking back your old tools for recycling. Please ask your Hilti customer service department or Hilti
representative for further information.
For EC countries only
Disposal of electric tools together with household waste is not permissible!
In observance of European Directive 2002/96/EC on waste electrical and electronic equipment
and its implementation in accordance with national law, electric tools that have reached the end
of their l ife must be collected separately and returned to an environmentally compatible recycling
facility.
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