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English
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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 material, let the vacuum cleaner run on for a few seconds after you switch
off the diamond core drilling machine.
7.5
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.
Remove the dust removal attachment or secure it to prevent rotation.
1. Secure the side handle in the desired position.
2. Optional: Install and use the two-part hole-starting aid. → page 26
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.
7.6
Wet drilling
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. Secure the side handle in the desired position.
2. Optional: Install and use the two-part hole-starting aid. → page 26
3. Center the diamond core drilling machine where the hole is to be drilled.
4. Slowly open the water flow regulator until the desired volume of water is flowing.
5. Press the on/off switch on the diamond core drilling machine.
6. When you start drilling apply only light pressure until the core bit has centered itself. Then apply more
pressure.
7.7
Using an open-end wrench to free the core bit
In the event of the core bit sticking, the clutch will slip until the user switches the power tool off.
1. Unplug the supply cord from the power outlet.
2. Grip the diamond core bit with a suitable open-end wrench close to the connection end and turn the
diamond core bit to free it.
3. Plug the supply cord into the power outlet.
4. Resume the drilling operation.
7.8
Switching off
The core bit is filled with dust/water and drilled-out material. Allow for the extra weight in the core bit
and make sure you have a firm stance before you remove the core bit from the drillhole.
1. Remove the diamond core bit from the hole.
2. Switch off the diamond core drilling machine.
3. Close the water flow regulator, if applicable.
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