Hilti DD 150-U Bedienungsanleitung Seite 59

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 49
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 49
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.
1. Lock the carriage with the carriage lock. Check to ensure that it is securely fastened.
2. Remove the end stop screw from the rear section of the column.
3. Attach the Rota-Rail so that the toothed racks are facing the same direction.
4. Tighten the screw on the Rota-Rail securely.
5. Release the carriage lock and run the carriage along the rail on to the Rota-Rail.
6. Slacken the securing screws of the Rota-Rail and turn the device to the left or right with the Rota-Rail.
This will give you access to the drill hole.
7. Remove the core or change the core bit.
8. Turn the tool with the Rota-Rail back to its original position and tighten the securing screws of the
Rota-Rail. Move the tool back to the column of the stand to resume work.
9. After removing the Rota-Rail, refit the end stop screw on the rear section of the column.
*2204400*
Printed: 19.09.2019 | Doc-Nr: PUB / 5501754 / 000 / 03
2204400 English 51