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5.3.2.1 Positioning the vacuum base plate
1. Mark the center of the hole to be drilled with a cross. The lines of the cross should be longer than the
diameter of the water collector.
The water collector has four protruding marks that can be aligned with the cross.
2. Turn the 4 leveling screws on the vacuum base plate until they project approx. 5 mm below the underside
of the vacuum base plate.
3. Position the vacuum base plate at a distance of 21 cm from the hole center.
4. Connect the vacuum connector on the vacuum base plate to the vacuum pump.
5. Switch on the vacuum pump.
6. Keep the vacuum release valve pressed in while correcting the position of the vacuum base plate.
5.3.2.2 Fastening the drill stand on the vacuum base plate
1. Switch on the vacuum pump.
2. Use the clamping spindle to fasten the drill stand on the vacuum base plate.
3. Level the drill stand by turning the two leveling screws.
5.3.3
Mounting the machine on the drill stand
If vacuum fastening is used, check to ensure that the drill stand is securely fastened to the working
surface before mounting the machine on the drill stand.
1. Unplug the supply cord from the power outlet.
2. Lock the carriage on the drill stand at the maximum distance from the working surface.
The carriage must be locked in the uppermost position. The machine with the water collector
holder can then be mounted on the drill stand without the water collector coming into contact with
the working surface.
3. Open the clamping piece by turning the locking bolt.
4. Fit the drilling machine onto the carriage.
5. Close the clamping piece by turning the locking bolt.
6. Make sure that the drilling machine is correctly fastened to the drill stand.
5.3.4
Fastening the machine and drill stand with an anchor
Fastening the drill stand with an anchor requires use of the DD M12 S accessory set which, among
other items, includes the DD-LR-CLS anchor spindle and the DD-LR-CLN nut.
1. Mark the center of the hole to be drilled with a cross. The lines of the cross should be longer than the
diameter of the water collector.
The water collector has four protruding marks that can be aligned with the cross.
2. Set the Hilti HKD-D M12x50 anchor for fastening the drill stand adapter plate at a distance of 12 cm
from the hole center mark.
When setting the anchor, observe the instructions for use enclosed with the anchor.
3. Mount the machine on the drill stand. → page 12
4. Turn back the two leveling screws until they no longer project.
5. Place the drill stand, with the machine mounted on it, over the clamping spindle and then secure the drill
stand temporarily by screwing on the clamping nut (DD M12 S accessory set).
Tighten the spindle securely only after the core bit has been positioned exactly over the center
point of the hole to be drilled ( → page 14).
6. Level the drill stand by turning the two leveling screws.
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