Hilti DD100 Mode D'emploi page 9

Press the core bit through the water collector
(sealing disc, centering ring) onto the surface
to be drilled. Switch on the DD 100 by press-
ing the main switch.
The water supply valve can be regulated us-
ing the index finger.
Important: First-time conversion of a dry-drilling machine (DD100-D, DD100-B) to a wet-drilling (DD100-W, DD100-M) can only be carried out by a Hilti service centre.
Printed: 07.07.2013 | Doc-Nr: PUB / 5069507 / 000 / 00
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Fitting a core bit
1. Chuck
2. Connection end
3. Core bit
4. Locking sleeve
5. Motor unit
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Removing a core bit
1. Chuck
2. Core bit
3. Locking sleeve
Hold the core bit before disengaging the lock-
ing sleeve.
When the core bit is released, ensure that the
core does not accidentally fall out of the bit.
When drilling overhead, close the water sup-
ply valve and drain the core bit via the water
supply hose before releasing it from the chuck.
Procedure in the event of the core bit
sticking
The slip clutch will be activated if the core bit
sticks.The power tool must then be switched
off by the operator. To release the core bit,
proceed as follows:
Using an open-end wrench to release the
core bit
1. Disconnect the supply cord plug from the
power outlet.
2. Grip the core bit close to the connection
end with a suitable open-end wrench and
rotate the core bit to release it.
3. Plug the supply cord back into the power
outlet.
4. Continue the drilling operation.
Using the spider wheel to release the core
bit
1. Disconnect the supply cord plug from the
power outlet.
2. Release the core bit by rotating it with the
spider wheel.
3. Plug the supply cord back into the power
outlet.
4. Continue the drilling operation.
Transport and storage
Note
– Store and transport the power tool in is tool-
box when possible.
– Open the water flow regulator before stor-
ing the power tool. Especially at tempera-
tures below freezing, take care to ensure
that no water remains in the power tool.
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