Hilti TE 70-D/AVR, Manual

Page: 13 / 16

English 11
8.1 Troubleshooting
Trouble or fault Possible cause Action to be taken
The rotary hammer doesn’t
start.
Interruption in the electric supply.
▶
Plug in another electric tool or
appliance and check whether it
works.
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 electronic restart interlock is
activated after an interruption in
the electric supply.
▶
Switch the power tool off and
then on again.
The carbon brushes are worn.
▶
Have checked by a trained elec-
trical specialist and replaced if
necessary.
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 rotary hammer 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.
The control switch is not fully
pressed.
▶
Press the control switch as far
as it will go.
The voltage provided by the elec-
tric supply is too low.
▶
Connect the power tool to a
different power source.
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 side handle is not fitted cor-
rectly.
▶
Release the side handle and refit
it correctly so that the clamping
band and side handle engage in
the recess.
The service indicator blinks
red.
A fault has occurred in the tool.
▶
Have the product repaired by
Hilti Service.
The service indicator lights
red.
The carbon brushes are worn.
▶
Have checked by a trained elec-
trical specialist and replaced if
necessary.
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.
10 China RoHS (guideline on restriction of the use of dangerous substances)
The following link takes you to the table of dangerous substances: qr.hilti.com/r1021351.
You will find a link to the RoHS table, in the form of a QR code, at the end of this document.
Printed: 01.06.2017 | Doc-Nr: PUB / 5354919 / 000 / 00