Hilti DD 150-U Mode D'emploi Original page 29

4. Plug the vacuum extractor's supply cord into the power outlet.
5. When connected: Press the Reset switch or I button of the PRCD.
6. Center the diamond core drilling machine where the hole is to be drilled.
7. Press the on/off switch on the diamond core drilling machine.
The vacuum extractor will start after the power tool has started. When you switch off the power
tool the vacuum extractor will run on for a short time before switching itself off.
7.10 Dry-drilling with using a vacuum extractor without power outlet for power tools
Use slotted core bits only when working without a dust removal system.
1. Secure the side handle in the desired position.
2. Optional: Fit and use the two-part hole-starting aid. → page 20
3. Plug the vacuum cleaner's supply cord into the power outlet and switch the vacuum cleaner on.
4. Plug the supply cord of the diamond core drilling machine into the power outlet and then press the
"Reset button or I button of the PRCD.
5. Center the diamond core drilling machine where the hole is to be drilled.
6. Press the on/off switch on the diamond core drilling machine.
7. To ensure removal of residual dust, let the vacuum extractor run on for a few seconds after you switch
off the machine.
7.11 Dry drilling without dust removal
If dry drilling without a dust removal system is carried out, use slotted core bits. Wear suitable
breathing protection!
Do not drill upward when working without a dust removal system.
1. Secure the side handle in the desired position.
2. Optional: Fit and use the two-part hole-starting aid. → page 20
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. Press the on/off switch on the diamond core drilling machine.
7.12 Hand-guided wet drilling without water collection system
WARNING
Risk of personal injury and material damage The diamond core drilling machine may become damaged
and the risk of electric shock is increased.
▶ Use of the water collection system in conjunction with a wet-type industrial vacuum cleaner is a mandatory
requirement for wet drilling overhead.
1. Secure the side handle in the desired position.
2. Optional: Fit and use the two-part hole-starting aid. → page 20
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.
7.13 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.
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2204401 English 21