Wearing Parts - Hilti DD-80 E Mode D'emploi

8. Operation
8.1 Operation
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2
5
3
1
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9. Maintenance
9.1 In order to provide trouble-free operation, the following points must be
observed:
1 Motor unit
I Keep the chuck clean and well
lubricated.
I Keep the ventilation slots in the
motor housing free of dirt and dust.
I Check the system regularly for
water leakage.
2 Drill stand
I Keep the column / guide rail clean.
10. Disposal
Return waste material for recycling
Most of the materials from which Hilti
tools or machines 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
machines or tools for recycling. Please
ask your Hilti customer service depart-
ment or Hilti sales representative for fur-
ther information.
Disposal of drilling slurry
With regard to environmental aspects,
allowing drilling slurry to flow directly
Only for EU countries
Do not dispose of electric tools together with household waste material!
In observance of European Directive 2002/96/EC on waste electrical and
electronic equipment and its implementation in accordance with national law,
electric tools that have reached the end of their life must be collected separately
and returned to an environmentally compatible recycling facility.
Printed: 07.07.2013 | Doc-Nr: PUB / 5069606 / 000 / 00
1. Select the correct coring speed.
(Change speed only when rotation
has stopped.)
2. Release the carriage locking device.
3. Guide the core bit into the water
collector.
4. Open the water supply valve.
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5. Switch on the motor.
Pay attention to the overload indicator
(6) and vacuum meter (7) while coring.
3 Vacuum baseplate
I With the exception of the seals, the
vacuum baseplate requires no
maintenance.
into rivers, lakes or the sewerage system
without suitable pre-treatment is pro-
blematical. Ask the local authorities for
information about applicable regulations.
We recommend the following pre-
treatment:
Collect the drilling slurry (e.g. use a wet-
type industrial vacuum cleaner).
Allow the slurry to settle and dispose of
the solid material at a construction waste
disposal site (the addition of a flocculent
may accelerate the settling process).
Water from the drilling slurry (alkaline,
ph value > 7) should be neutralized by
adding an acidic neutralizing agent or
large quantity of water before it is
allowed to flow into the sewerage sys-
tem.
8.2 Tips
I Reduce feed pressure and tighten
carriage locking device slightly when
starting holes in order to avoid vibra-
tion.
I If steel reinforcement is contacted,
select lower coring speed and
reduce water flow. (Obtain permis-
sion from site manager or engineer
before cutting through steel rein-
forcement.)
The diamond segments can become
polished (reduced cutting perfor-
mance) if the coring feed pessure is
too low.
I Inadequate water flow will cause the
core bit to overheat, resulting in per-
manent damage.

9.2 Wearing parts

I DD-VH2 replacement seal for the
vacuum baseplate
I DD-WC-S sealing disc for the water
collector
I DD-WC-S sealing ring for the water
collector
In case of technical problems,
please contact the Hilti customer
service department.
11. Warranty
Hilti warrants that the product supplied
is free of defects in material and work-
manship. This warranty is valid as long
as the product is operated and handled
correctly, cleaned and serviced properly
and in accordance with the Hilti opera-
ting instructions, all warranty claims
made within 6 months (machine) or 12
months (other items of equipment) from
the date of the sale (invoice date), unless
other mandatory national regulations
prescribe a longer minimum period, and
the technical system is maintained.
This means that only genuine Hilti con-
sumables, components and spare parts
may be used with the product.
This warranty provides the free-of-charge
repair or replacement of defective parts
only. Parts requiring repair or replace-
ment as a result of normal wear and tear
are not covered by this warranty.
I Reduce coring feed pressure if the
overload indicator lights up.
I Water flow rates
8–47 mm max. 1–1,5 l/min.
52–82 mm max. 3 l/min.
Additional claims are excluded, unless
stringent national rules prohibit such
exclusion. In particular, Hilti is not
obligated for direct, indirect, incidental
or consequential damages, losses or
expenses in connection with, or by
reason of, the use of, or inability to use
the product for any purpose. Implied
warranties of merchantability or fitness
for a particular purpose are specifically
excluded.
Send the product and/or related parts
immediately upon discovery of a defect
to the local Hilti marketing organization
for repair or replacement.
This constitutes Hilti's entire obligation
with regard to warranty and supersedes
all prior or contemporaneous comments
and oral or written agreements
concerning warranties.
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