▶ Store the product and the batteries in a cool and dry place. Comply with the temperature limits stated in
the technical data.
▶ Do not store batteries on the charger. Always remove the battery from the charger when the charging
operation has completed.
▶ Never leave batteries in direct sunlight, on sources of heat, or behind glass.
▶ Store the product and batteries where they cannot be accessed by children or unauthorized persons.
▶ Prior to each use and before and after prolonged storage, check the product and the batteries for
damage.
9
Troubleshooting
If a problem occurs, always observe the charge-status and fault indicator of the battery. See the section
headed Status indicators of the Liion battery.
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
No hammering action.
The battery runs down more
quickly than usual.
LEDs of the battery show
nothing.
The battery doesn't engage
with an audible click.
The control switch can't be
pressed, i.e. the switch is
locked.
The drive spindle doesn't
rotate.
Product switches off if drill bit
jams.
Product or battery gets very
hot.
The insert tool cannot be re-
leased from the chuck.
The drill bit makes no
progress.
The drill bit does not rotate.
Product does not start.
12
English
Possible cause
The product is too cold.
Battery condition is not optimal.
Battery defective.
The retaining lugs on the battery
are dirty.
The forward / reverse switch is in
the middle position.
Battery defective.
The electronic safety shut-down
has tripped to prevent further jam-
ming.
Electrical fault
Chuck not pulled back fully.
Product has been set to reverse
rotation.
The function selector switch is not
engaged or is in the "Chiseling"
position
or the "Chisel position-
ing" position
.
The electronic restart interlock is
activated after an interruption in
the electricity supply.
Action to be taken
▶ Bring the product into contact
with the working surface, switch
it on and allow it to idle. If
necessary, repeat the procedure
until the hammering mechanism
begins to operate.
▶ Call up the battery's state of
health. → page 6
▶ Contact Hilti Service.
▶ Clean the retaining lug and refit
the battery.
▶ Push the forward / reverse
switch to the right or left.
▶ Contact Hilti Service.
▶ Release the drill bit.
▶ Immediately switch off the
product. Remove the battery
and keep it under observation.
Allow it to cool down. Contact
Hilti service.
▶ Pull the chuck back as far
as it will go and remove the
accessory tool.
▶ Move the forward / reverse
switch to the "Forward" posi-
tion.
▶ With the motor at a standstill,
set the function selector switch
to the "Hammer drilling"
position.
▶ Release the control switch and
then press it again.
2264907
*2264907*