Storage
▶ Always store this product with the electric supply cable unplugged from the electricity supply.
▶ Store this product in a dry place, where it cannot be accessed by children or unauthorized persons.
▶ After a long period of storage, always check all visible parts and controls for signs of damage and make
sure that they all function correctly.
8
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.
8.1
Troubleshooting
Trouble or fault
The breaker doesn't start.
No hammering action.
The breaker doesn't achieve
full power.
The chisel cannot be released
from the chuck.
The service indicator blinks.
The service indicator lights.
9
Disposal
Most of the materials from which Hilti tools and appliances 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 representative
for further information.
*2146361*
Possible cause
Interruption in the electric supply.
The electronic restart interlock is
activated after an interruption in
the electric supply.
The generator is in sleep mode.
A fault has occurred in the tool.
The carbon brushes are worn.
The power tool is too cold.
The extension cord is too long or
its gauge is inadequate.
The control switch is not fully
pressed.
The chuck is not pulled back fully.
A fault has occurred in the tool.
The carbon brushes are worn.
The tool is faulty or servicing is
due.
2146361
Action to be taken
▶ Plug in another electric tool or
appliance and check whether it
works.
▶ Switch the power tool off and
then on again.
▶ Apply a load to the generator
by connecting a second power
consumer (e.g. worklight).
Switch the tool off and then on
again.
▶ Have the product repaired by
Hilti Service.
▶ Have checked by a trained elec-
trical specialist and replaced if
necessary.
▶ Bring the tip of the accessory
tool into contact with the
working surface, switch the
power tool on and allow it to
run. If necessary, repeat the
procedure until the hammering
mechanism begins to operate.
▶ Use an extension cord of an
approved length and / or of
adequate gauge.
▶ Press the control switch as far
as it will go.
▶ Pull the chuck back as far as
it will go and remove the insert
tool.
▶ Have the product repaired by
Hilti Service.
▶ Have checked by a trained elec-
trical specialist and replaced if
necessary.
▶ Have the product repaired only
by Hilti Service.
English
9