Disposal - Hilti VC 20‑U Manual Original

Fault
The motor doesn't restart.
The automatic filter el-
ement cleaning system
doesn't work.

10 Disposal

Most of the materials from which Hilti power tools or appliances are manufactured can be recycled.
The materials must be correctly separated before they can be recycled. In many countries, Hilti
has already made arrangements for taking back your old power tools or appliances for recycling.
Ask Hilti customer service or your Hilti representative for further information.
Disposing of drilling slurry
Disposing 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. We recommend the following pretreatment:
1. Collect the drilling slurry (for example, using a wet-type vacuum cleaner).
2. Allow the drilling slurry to settle and dispose of the solid material at a construction waste
disposal site (the addition of a flocculent may accelerate the separation process).
3. The remaining water (alkaline, pH value greater than 7) must be neutralized by the addition of
an acidic neutralizing agent or diluted with a large volume of water before it is allowed to flow
into the sewerage system.
Disposal of drilling dust
The drilling dust collected must be disposed of in accordance with the applicable national
regulations.
Possible cause
The container is full.
The motor overheating pro-
tection cut-out has been acti-
vated.
The motor overheating protec-
tion cut-out switches the motor
off repeatedly as the ventilation
slots are clogged.
No suction hose is connected.
Remedy
Switch the appliance off.
Empty the container.
See section: 7.5.2 Emptying
the waste material container
when no dust bag is fitted
(collecting liquids)
Switch off the appliance and
allow it to cool for 5 min. If the
motor still doesn't start, con-
tact Hilti Service.
Clean the ventilation slots
carefully with a dry brush.
Connect the suction hose.
en
15