Troubleshooting - Hilti TE 50 Mode D'emploi

If necessary, the power tool should be repaired by Hilti
Service.
en

9 Troubleshooting

Fault
The power tool doesn't start.
No hammering action.
The power tool doesn't start
and the LED blinks red.
The power tool doesn't start
and the LED lights red.
The power tool doesn't start
and the indicator lamp blinks
yellow.
The power tool doesn't achieve
full power.
The drill bit doesn't rotate.
The drill bit / chisel can't be re-
leased from the chuck.
24
8.5 Checking the power tool after care and
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.
Possible cause
Interruption in the electric supply.
The supply cord or plug is defective.
Generator with sleep mode.
Other electrical fault.
The electronic restart interlock is ac-
tivated after an interruption in the
electric supply.
The power tool is too cold.
A fault has occurred in the power tool.
The carbon brushes are worn.
The power tool has not been un-
locked (power tools with optional theft
protection system).
The extension cord is too long or its
gauge is inadequate.
The voltage provided by the electric
supply is too low.
The function selector switch is not
engaged or is in the "Chiseling" or
"Chisel adjustment" position.
The chuck is not pulled back fully.
The side handle is not fitted correctly.
maintenance
Remedy
Plug in another electric appliance and
check whether it works.
Have it checked by a trained electrical
specialist and replaced if necessary.
Apply a load to the generator by con-
necting another appliance (e.g. a
lamp). Subsequently switch the power
tool off and on again.
Have it checked by a trained electrical
specialist.
Switch the power tool off and on
again.
Allow the power tool to warm up to
the minimum operating temperature.
See section: 7.2.3 Hammer drilling
(B) 7
If necessary, the power tool should be
repaired by Hilti Service.
Have it checked by a trained electrical
specialist and replaced if necessary.
Use the TPS key to unlock the power
tool.
Use an extension cord of an
approved length and / or of adequate
gauge.
Connect the power tool to a different
power source.
When the motor has stopped, move
the function control switch to the
"Drilling without hammering" or
"Hammer drilling" position.
Pull the chuck back as far as it will go
and remove the insert tool.
Release the side handle and refit
it correctly so that the clamping
band and side handle engage in the
groove.