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Malfunction
The drilling system has too
much play.
10.2
The diamond core drilling machine is not in working order
Malfunction
The service indicator shows
nothing.
The service indicator lights.
The service indicator blinks.
The theft protection indicator
blinks.
11
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.
▶ Do not dispose of power tools, electronic equipment or batteries as household waste!
12
Manufacturer's warranty
▶ Please contact your local Hilti representative if you have questions about the warranty conditions.
*351007*
Possible cause
The diamond core bit isn't securely
tightened in the chuck.
The core bit connection end /
chuck is defective.
Possible cause
The PRCD isn't switched on.
Interruption in the electric supply.
Water in the motor.
The carbon brushes are worn out.
Motor speed error.
The diamond core drilling machine
has not been unlocked (machines
with optional theft protection sys-
tem).
351007
Action to be taken
▶ Tighten the diamond core bit
securely.
▶ Remove the core bit. Rotate the
diamond core bit approx. 90°
about its own axis. Refit the
diamond core bit.
▶ Check the connection end and
chuck and replace them if
necessary.
Action to be taken
▶ Check that the PRCD is
functioning and switch it on.
▶ Plug in another electric tool or
appliance and check whether it
works.
▶ Check the plug connections,
supply cord, power supply line
and main supply fuse.
▶ Allow the diamond core drilling
machine to dry out completely
in a warm, dry place.
▶ Replace the carbon brushes.
→ page 12
▶ Disconnect the diamond core
drilling machine from the power
supply and then switch it back
on again.
▶ Use the TPS key to unlock the
diamond core drilling machine.
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