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English 11
Trouble or fault
Possible cause
Action to be taken
The breaker doesn’t
start.
The generator is in sleep
mode.
▶
Apply a load to
the generator by
connecting a second
power consumer (e.g.
worklight). Switch the
tool off and then on
again.
The voltage provided by
the electric supply is too
high.
▶
Use a different power
outlet. Check the
electric supply.
No hammering ac-
tion.
The power tool is too
cold.
▶
Bring the tip of the
accessory tool into
contact with the
working surface,
switch the power
tool on and allow it
to run. If necessary,
repeat the procedure
until the hammering
mechanism begins to
operate.
The service indicator
lights red.
The tool is faulty or ser-
vicing is due.
▶
Have the product
repaired only by
Hilti
Service.
The service indicator
blinks red.
The overheating preven-
tion cut-out has been
activated.
▶
Allow the tool to cool
down. Clean the
air vents. Running
under no load is still
possible.
The voltage provided by
the electric supply is too
high.
▶
Use a different power
outlet. Check the
electric supply.
The breaker
switches itself off
while running.
The overheating preven-
tion cut-out has been
activated.
▶
Allow the tool to cool
down. Clean the
air vents. Running
under no load is still
possible.
The breaker doesn’t
achieve full power.
The extension cord is
too long or its gauge is
inadequate.
▶
Use an extension cord
of an approved length
and / or of adequate
gauge.
Printed: 02.02.2017 | Doc-Nr: PUB / 5070775 / 000 / 03