*2048398*
2048398 English 21
Malfunction Possible cause Action to be taken
Water escapes from the
chuck during operation.
The chuck seal is defective. ▶ Check the seal and replace it if
necessary.
8.2 The diamond core drilling machine is not in working order
Malfunction Possible cause Action to be taken
The service indicator shows
nothing.
The PRCD isn’t switched on. ▶ Check that the PRCD is
functioning and switch it on.
Interruption in the electric supply. ▶ 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.
Water in the motor. ▶ Allow the diamond core drilling
machine to dry out completely
in a warm, dry place.
The service indicator lights.
The carbon brushes are worn out. ▶ Replace the carbon brushes.
→ page 19
The service indicator blinks.
The motor has overheated (e.g.
due to excessive lateral core bit
friction and/or excessive contact
pressure).
▶ Wait a few minutes until the
motor has cooled down or
allow the diamond core drilling
machine to run under no load in
order to speed up the cooling
process.
▶ Switch the diamond core drilling
machine off and then on again.
▶ Guide the diamond core drilling
machine carefully, keeping
it straight and/or reduce the
contact pressure.
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.
▶ Do not dispose of power tools, electronic equipment or batteries as household waste!
9.1 Disposal of drilling slurry
Disposal of drilling slurry directly into rivers, lakes or the sewerage system without suitable pretreatment
presents environmental problems.
▶ Ask the local public authorities for information about current regulations.
▶ Dispose of the drilling slurry. → page 18
10 Manufacturer’s warranty
▶ Please contact your local Hilti representative if you have questions about the warranty conditions.
Printed: 05.07.2019 | Doc-Nr: PUB / 5283523 / 000 / 06
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