Hilti DCH 300 Manual De Instrucciones página 19

LED indicators
8.3 Maintenance
WARNING
Repairs to the electrical section of the machine 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. Do not operate the power tool if parts are
9 Troubleshooting
Fault
The power tool doesn't start.
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.
Constant red light
Blinking red light
damaged or when the controls do not function faultlessly.
If necessary, the power tool should be repaired by Hilti
Service.
8.4 Checking the power tool after care and
After carrying out care and maintenance, check that all
protective and safety devices are fitted and that they
function faultlessly.
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 acti-
vated after an interruption in the elec-
tric 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).
End of service interval - servicing is due.
After the lamp lights for the first time,
the power tool may continue to be used
for several hours (switched-on running
time) before the automatic cut-out is ac-
tivated. To ensure that the power tool
is always ready for use, it should be re-
turned to Hilti for servicing in good time.
See section "Troubleshooting".
maintenance
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.
en
13