Troubleshooting; Disposal - Hilti DCH 300 Operating Instructions Manual

9 Troubleshooting

Fault
The power tool doesn't start.
en
The power tool doesn't achieve
full power.
The power tool doesn't start
and the service indicator blinks
red.
The power tool doesn't start
and the service indicator lights
red.
The power tool doesn't start
and the theft protection system
indicator blinks yellow.

10 Disposal

Most of the materials from which Hilti machines 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 old machines and appliances for recycling. Ask Hilti customer service or your Hilti representative for further
information.
For EC countries only
Disposal of electric appliances 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.
30
Possible cause
Interruption in the electric supply.
The supply cord or plug is defective.
The power tool has not been un-
locked (tools with optional theft pro-
tection system).
The on / off switch is defective.
The power tool has been overloaded
(application limits exceeded).
The overheating protection system is
active.
Other electrical fault.
The electronic restart interlock is ac-
tivated after an interruption in the
electric supply.
The extension cord's conductor cross
section is inadequate.
A fault has occurred in the power tool.
The carbon brushes are worn.
The power tool has not been un-
locked (tools with optional theft pro-
tection system).
Remedy
Plug in another electric appliance and
check whether it works.
Have checked by a trained electrical
specialist and replaced if necessary.
Use the TPS key to unlock the power
tool.
If necessary, the power tool should be
repaired by Hilti Service.
Use the right power tool for the job
(don't use a low-powered tool for
heavy work).
Allow the power tool to cool down.
Clean the ventilation slots.
Have it checked by a trained electrical
specialist.
Switch the power tool off and on
again.
Use an extension cord with an ad-
equate conductor cross section.
(Please refer to "Before use".)
If necessary, the power tool should be
repaired by Hilti Service.
Have checked by a trained electrical
specialist and replaced if necessary.
Use the TPS key to unlock the power
tool.