Disposal - Hilti DD 110-W Manual De Instrucciones

Fault
The rate of drilling progress de-
creases.
en
The diamond core bit cannot be
fitted into the chuck.
Excessive play in the drilling
system.
Water escapes at the water
swivel or gear housing.
Water escapes from the chuck
during operation.

10 Disposal

Most of the materials from which Hilti machines 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 old machines and appliances for recycling. Ask Hilti customer service or your Hilti representative for further
information.
For EC countries only
Disposal of electric appliances together with household waste is not permissible.
In observance of the European Directive on waste electrical and electronic equipment and its imple-
mentation in accordance with national law, electrical appliances that have reached the end of their life
must be collected separately and returned to an environmentally compatible recycling facility.
Recommended pretreatment for disposal of drilling slurry
NOTE
From the environmental and health point of view, the disposal of drilling dust can be problematic. Ask the local public
authorities for information about current regulations.
Recommended pretreatment for disposal of drilling slurry
NOTE
The 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.
32
Possible cause
Maximum drilling depth is reached.
The diamond core bit is damaged.
The slip clutch is disengaging prema-
turely or slipping.
Drilling progress is prevented by an
accumulation of dust.
Water pressure / flow rate too high.
The water flow rate is too low.
The core bit connection end or chuck
is dirty or damaged.
The core bit is not screwed securely
into the chuck.
The core bit connection end is defect-
ive.
The water pressure is too high.
The shaft seal is defective.
The core bit is not screwed securely
into the chuck.
The core bit connection end / chuck
is dirty.
The chuck or connection end seal is
defective.
Remedy
Remove the core and use a core bit
extension.
Check the diamond core bit for dam-
age and replace it if necessary.
The machine should be repaired by
Hilti Service.
Use a suitable vacuum cleaner.
Reduce the water flow rate by adjust-
ing the flow regulator.
Adjust (open) the water flow regulator.
Check the water supply.
Clean the connection end /chuck or
replace if necessary.
Tighten it securely.
Check the connection end and re-
place it if necessary.
Reduce the water pressure.
The machine should be repaired by
Hilti Service.
Tighten it securely.
Clean the connection end / chuck.
Check the seal and replace it if ne-
cessary.