English 15
6.1 Replacing the dust shield 8
▶ Replace the dust shield.
7 Transport and storage
• Do not transport electric tools with accessory tools fitted.
• Always unplug the supply cord before storing an electric tool or appliance.
• Store tools and appliances in a dry place where they cannot be accessed by children or unauthorized
persons.
• Check electric tools or appliances for damage after long periods of transport or storage.
8 Troubleshooting
If the trouble you are experiencing is not listed in this table or you are unable to remedy the problem by
yourself, please contact Hilti Service.
8.1 Troubleshooting
If the trouble you are experiencing is not listed in this table or you are unable to remedy the problem by
yourself, please contact Hilti Service.
Trouble or fault Possible cause Action to be taken
The power tool doesn’t start. Interruption in the electric supply. ▶ Plug in another electric tool or
appliance and check whether it
works.
No hammering action. The power tool is too cold. ▶ 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.
The function selector switch is set
to “Drilling without hammering” .
▶ Set the function selector
switch to the “Drilling with
hammering action” (hammer
drilling) position .
The rotary hammer doesn’t
achieve full power.
The gauge (cross section) of the
extension cord conductors is inad-
equate.
▶ Use an extension cord with
an adequate conductor cross
section.
The control switch is not fully
pressed.
▶ Press the control switch as far
as it will go.
The drill bit does not rotate. The function selector switch is not
engaged or is in the “Chiseling”
or “Chisel adjustment” position.
▶ Set the function selector switch
to “Drilling without hammering”
or “Hammer drilling” .
The drill bit cannot be re-
leased.
The chuck is not pulled back fully. ▶ Pull the chuck back as far
as it will go and remove the
accessory tool.
The drill bit makes no
progress.
The power tool has been set to
reverse rotation.
▶ Set the power tool to forward
rotation.
9 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.
▶ Disposal of electric tools or appliances together with household waste is not permissible.
Printed: 10.10.2017 | Doc-Nr: PUB / 5071226 / 000 / 06
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