English 13
Trouble or fault Possible cause Action to be taken
No hammering ac-
tion.
The function selector
switch is set to “Rotary
drilling only” .
▶ Set the function
selector switch to
the “Hammer drilling”
position .
Contact pressure too
low.
▶ Press harder to in-
crease contact pres-
sure so that hammer
mechanism cuts in.
The combihammer
doesn’t achieve full
power.
The gauge (cross sec-
tion) of the extension
cord conductors is inad-
equate.
▶ Use an extension cord
with an adequate con-
ductor cross section.
The control switch is not
fully pressed.
▶ Press the control
switch as far as it will
go.
The tool has been set to
reverse rotation.
▶ Set the tool to forward
rotation.
Voltage from generator
is too low.
▶ Make sure that voltage
rating of electricity
supply is correct.
The drill bit doesn’t
rotate.
The function selector
switch is not engaged or
is in the “Chiseling” or
“Chisel adjustment”
position.
▶ Set the function selec-
tor switch to “Drilling
without hammering”
or “Hammer drilling”
.
The drill bit can’t be
released.
The chuck is not pulled
back fully.
▶ Pull the chuck back
as far as it will go and
remove the accessory
tool.
10 Disposal
Most of the materials from which Hilti tools and appliances are manu-
factured can be recycled. The materials must be correctly separated before
they can be recycled. In many countries, your old tools, machines or appli-
ances can be returned to Hilti for recycling. Ask Hilti Service or your Hilti
representative for further information.
11 Manufacturer’s warranty
▶ Please contact your local Hilti representative if you have questions about
the warranty conditions.
Printed: 03.03.2017 | Doc-Nr: PUB / 5324643 / 000 / 01