Fault Possible cause Remedy
The power tool doesn’t start
and the LED lights red.
The carbon brushes are worn. Have it checked by a trained
electrical specialist and replaced if
necessary.
The power tool doesn’t start
and the indicator lamp blinks
yellow.
The power tool has not been
unlocked (power tools with optional
theft protection system).
Use the TPS key to unlock the power
tool.
The power tool doesn’t achieve
full power.
The extension cord is too long or its
gauge is inadequate.
Use an extension cord of an
approved length and / or of
adequate gauge.
The voltage provided by the electric
supply is too low.
Connect the power tool to a different
power source.
The drill bit doesn’t rotate.
The function selector switch is not
engaged or is in the “Chiseling” or
“Chisel adjustment” position.
When the motor has stopped, move
the function control switch to the
“Drilling without hammering” or
“Hammer drilling” position.
The drill bit / chisel can’t be
released from the chuck.
The chuck is not pulled back fully. Pull the chuck back as far as it will
go and remove the insert tool.
The side handle is not fitted
correctly.
Release the side handle and refit
it correctly so that the clamping
band and side handle engage in the
groove.
10. Disposal
Most of the materials from which Hilti power tools or appliances 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 power tools or appliances 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 life must be collected separately and returned to an environmentally compatible recycling
facility.
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