Hilti DD 150-U Mode D'emploi page 58

3. Plug the supply cord into the power outlet and press the Reset button or I button of the PRCD.
4. Center the diamond core drilling machine where the hole is to be drilled.
5. Slowly open the water flow regulator until the water flows at the desired rate. The indicator on the side
handle enables you to check the water flow.
6. Press the on/off switch on the diamond core drilling machine.
6.13 Hand-guided wet-drilling with the water collection system
WARNING
Danger of electric shock! There is a possibility of water flowing over the motor and cover if the vacuum
removal system is faulty.
▶ Cease operations immediately if the vacuum removal system is not working.
Use of the water collection system in conjunction with a wet-type industrial vacuum extractor is a
mandatory requirement for wet drilling overhead.
Before opening the water supply, switch on the wet vacuum cleaner manually. Connect the water
supply before switching off the wet vacuum cleaner.
Do not use the power socket on the wet vacuum extractor.
1. Install the water collection system for the hand-guided mode. → page 47
2. Secure the side handle in the desired position.
3. When using a vacuum extractor: Switch the vacuum cleaner on.
4. Optional: Fit and use the two-part hole-starting aid. → page 48
5. Plug the supply cord into the power outlet and then press the Reset button or I button of the PRCD.
6. Center the diamond core drilling machine where the hole is to be drilled.
7. Slowly open the water flow regulator until the water flows at the desired rate. The indicator on the side
handle enables you to check the water flow.
8. Press the on/off switch on the diamond core drilling machine.
6.14 Wet-drilling with the drill stand
WARNING
Danger of electric shock! There is a possibility of water flowing over the motor and cover if the vacuum
removal system is faulty.
▶ Cease operations immediately if the vacuum removal system is not working.
For drilling upward, the use of a wet vacuum cleaner in conjunction with a water collection system is
a mandatory requirement!
1. Slowly open the water flow regulator until the water flows at the desired rate.
2. Switch the machine to continuous operation with the continuous running lock. → page 48
3. Release the carriage lock.
4. Turn the hand wheel until the diamond core bit is in contact with the work surface.
5. When you start drilling apply only light pressure until the core bit has centered itself. Then apply more
pressure.
6. Watch the drilling performance indicator and adjust contact force accordingly.
6.15 Using the Rota-Rail (column swivel)
The Rota-Rail allows quick and easy access to the hole or core being drilled, with no need to partly or
fully dismantle the system.
WARNING
Risk of injury caused by incorrect use! The drill stand can be damaged or it can break.
▶ Never use the Rota-Rail as a column extension.
50 English 2204400
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