*2065392*
2065392 English 11
▶ Prior to each use and before and after prolonged storage, check the product and the batteries for
damage.
9 Troubleshooting
If the trouble you are experiencing is not listed in this table or you are unable to remedy the problem by
yourself, please contact Hilti Service.
Trouble or fault Possible cause Action to be taken
Product does not work. The battery is not fully inserted. ▶ Push the battery in until it
engages with an audible double
click.
Battery is discharged. ▶ Change the battery and charge
the empty battery.
Product does not work and all
four LEDs flash.
Product momentarily overloaded. ▶ Release the control switch and
then press it again.
The overheating cut-out has been
activated.
▶ Allow the product to cool down.
Clean the air vents.
Product does not work and
one LED flashes.
Battery is discharged. ▶ Change the battery and charge
the empty battery.
The battery is too hot or too cold. ▶ Bring the battery to the recom-
mended operating temperature.
The on/off button cannot be
pressed, i.e. the button is
locked.
The forward/reverse switch is in
the middle position.
▶ Push the forward/reverse switch
to the left or right.
The battery runs down more
quickly than usual.
Very low ambient temperature. ▶ Allow the battery to warm up
slowly to room temperature.
The battery does not engage
with an audible double click.
The retaining lugs on the battery
are dirty.
▶ Clean the retaining lugs and
push the battery in until it
engages. Contact Hilti Service
if the problem persists.
The product or battery gets
very hot.
Electrical fault. ▶ Switch the product off immedi-
ately, remove the battery, keep
it under observation, allow it
to cool down and contact Hilti
Service.
The product is overloaded (appli-
cation limits exceeded).
▶ Pay attention to the power
and performance rating of the
product before using it, i.e
check its suitability for the job
on hand. See “Technical data”
section.
10 Disposal
WARNING
Risk of injury due to incorrect disposal! Health hazards due to escaping gases or liquids.
▶ DO NOT send batteries through the mail!
▶ Cover the terminals with a non-conductive material (such as electrical tape) to prevent short circuiting.
▶ Dispose of your battery out of the reach of children.
▶ Dispose of the battery at your Hilti Store, or consult your local governmental garbage disposal or public
health and safety resources for disposal instructions.
Most of the materials from which Hilti products are manufactured can be recycled. The materials must be
correctly separated before they can be recycled. In many countries, your old tools, machines or appliances
can be returned to Hilti for recycling. Ask Hilti Service or your Hilti sales representative for further information.
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