Troubleshooting - Hilti TE 700-AVR Operating Instructions Manual

9 Troubleshooting

Fault
The power tool does not start.
No hammering action.
The power tool does not start
and the LED lights up red.
The power tool doesn't start
and the LED blinks red.
The power tool cuts out while
running and the LED lights red.
The power tool doesn't start
and the indicator lamp blinks
yellow.
The power tool does not
achieve full power.
The chisel can't be released
from the chuck.
NOTE
If the fault can not be eliminated by the measures listed above, have the power tool checked by Hilti Service.
Possible cause
Initialization of the electronics is in
progress (takes up to approx. 4 sec.
after plugging in) or the electronic
restarting interlock has become acti-
vated after an interruption in the elec-
tric supply.
Interruption in the electric supply.
The supply cord or plug is defective.
The control switch is defective.
Generator with sleep mode.
The power tool is too cold.
A fault has occurred in the power tool.
Chuck not sufficiently greased.
Damage to the power tool or service
limit time reached.
The voltage provided by the electric
supply is too high.
The overheating prevention cut-out
has been activated.
The power tool has not been un-
locked (power tools with optional theft
protection system).
Power reduction is active.
The extension cord is too long or its
gauge is inadequate.
The voltage provided by the electric
supply is too low.
The chuck is not pulled back fully.
Remedy
Switch the power tool off and on
again.
Plug in another electric appliance and
check whether it works.
Have it checked by a trained electrical
specialist and replaced if necessary.
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.
Allow the power tool to warm up to
the minimum operating temperature.
See section: 7.2.2 Chiseling
If necessary, the power tool should be
repaired by Hilti Service.
Using a grease gun, squeeze 1 to 2
strokes of Hilti grease into the chuck,
then insert the tool and, by pulling the
tool backwards and forwards several
times, ensure that the grease is well
distributed in the chuck.
Have the power tool repaired by Hilti
Service.
Use a different power outlet.
Check the electric supply.
Allow the power tool to cool down.
Clean the ventilation slots.
Use the TPS key to unlock the power
tool.
Press the power level selector switch
(observe the power level indicator).
Switch the power tool off and on
again.
Use an extension cord of an
approved length and / or of adequate
gauge.
Connect the power tool to a different
power source.
Pull the chuck back as far as it will go
and remove the insert tool.
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