8.2 Maintenance
WARNING
Do not operate the tool if parts are damaged or when
the controls do not function faultlessly. If necessary,
the power tool should be repaired by Hilti Service.
WARNING
Repairs to the electrical section of the power tool may
be carried out only by trained electrical specialists.
Check all external parts of the power tool for damage
at regular intervals and check that all controls operate
faultlessly.
8.3 Checking the power tool after care and
maintenance
After carrying out care and maintenance work on the
power tool, check that all protective and safety devices
are fitted and that they function faultlessly.
9 Troubleshooting
Fault
Possible cause
Remedy
The power tool doesn’t start.
Interruption in the electric supply.
Plug in another electric appliance and
check whether it works.
The supply cord or plug is defective.
Have the parts checked by a trained
electrical specialist and replaced if
necessary.
The carbon brushes are worn.
Have it checked by a trained electrical
specialist and replaced if necessary.
The power tool doesn’t achieve
full power.
The extension cord’s conductor cross
section is inadequate.
Use an extension cord with an ad-
equate conductor cross section.
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 the European Directive on waste electrical and electronic equipment and its imple-
mentation in accordance with national law, electrical appliances that have reached the end of their life
must be collected separately and returned to an environmentally compatible recycling facility.
11 Manufacturer’s warranty - tools
Please contact your local Hilti representative if you have
questions about the warranty conditions.
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Printed: 02.04.2014 | Doc-Nr: PUB / 5169257 / 000 / 01
