Trouble or fault
The power tool doesn't start.
The tool cuts out while run-
ning.
No hammering action.
The combihammer doesn't
achieve full power.
The drill bit does not rotate.
The drill bit cannot be re-
leased.
The drill bit makes no
progress.
8 Disposal
Most of the materials from which Hilti tools and appliances are manufactured can be recycled. The
materials must be correctly separated before they can be recycled. In many countries, your old tools,
machines or appliances can be returned to Hilti for recycling. Ask Hilti Service or your Hilti representative
for further information.
9 Manufacturer's warranty
▶ Please contact your local Hilti representative if you have questions about the warranty conditions.
Possible cause
Interruption in the electric supply.
The carbon brushes are worn out.
Drilling for too long at low speed.
The tool is too cold.
The function selector switch is set
to "Rotary drilling only"
The gauge (cross section) of the
extension cord conductors is inad-
equate.
The control switch is not fully
pressed.
The function selector switch is not
engaged or is in the
or
"Chisel adjustment" position.
The chuck is not pulled back fully.
The tool has been set to reverse
rotation.
Action to be taken
▶ Plug in another electric tool or
appliance and check whether it
works.
▶ Have the power tool checked by
a trained electrical specialist and
the carbon brushes replaced if
necessary.
▶ Release the control switch and
then press it again.
▶ Bring the tip of the drill bit
into contact with the working
surface, switch the rotary
hammer on and allow it to
run. If necessary, repeat the
procedure until the hammering
mechanism begins to operate.
▶ Set the function selector switch
.
to the "Hammer drilling" position
.
▶ Use an extension cord with
an adequate conductor cross
section.
▶ Press the control switch as far
as it will go.
▶ Set the function selector switch
"Chiseling"
to "Drilling without hammering"
or "Hammer drilling"
▶ Pull the chuck back as far
as it will go and remove the
accessory tool.
▶ Set the tool to forward rotation.
.
7