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Use of the water collection system in conjunction with
a wet-type vacuum cleaner is mandatory for overhead
drilling. Position the side handle and water swivel / extrac-
tion head so that the water collection system can be fit-
ted without obstruction. The centering ring and seal
must be of a size suitable for the core bit diameter used.
1. From below the tool, position the water collection sys-
tem on the two mounting pins.
2. Swing the water collection system towards the front.
3. Secure the water collection system by turning the
knob.
4. Connect a wet-type vacuum cleaner to the front of the
water collection system. Alternatively, the water can
be allowed to flow away through a length of hose
attached to the connector (not permissible for over-
head drilling).
6.6.2 Adjusting the depth gauge
1. Set the depth gauge to the desired depth.
2. Use the clamping screw to secure the depth gauge.
6.7 Using the drill stand
6.7.1 Using an anchor (HKD-D M12) to secure the
drill stand
1. Place the anchor at a distance of 200 mm (ideal dis-
tance) from the centre of the hole to be cored.
2. Screw the quick-release spindle into the anchor.
3. Place the drill stand over the quick-release spindle
and use the hole centre indicator to bring the drill
stand into alignment.
4. Fit the nut to the quick-release spindle but do not tight-
en it fully.
5. The four levelling screws should then be used to lev-
el the baseplate. The spirit level on the baseplate serves
as a levelling aid.
6. Use the locknuts to prevent further movement of the
levelling screws.
7. Tighten the nuts securely with an open-end wrench.
6.7.2 Securing the drill stand with the vacuum pad
A vacuum release valve is incorporated in the baseplate
grip.
Overhead drilling with the drill stand attached only by
vacuum is not permissible.
1. Unscrew the four levelling screws until they project
approx. 5 mm beneath the baseplate.
2. Connect the hose between the vacuum connector on
the baseplate and the vacuum pump.
3. Switch on the vacuum pump and extend the hole
centre indicator. While pressing the vacuum release
valve and observing the hole centre indicator, bring
the baseplate into the desired position. When posi-
tioned correctly, press the baseplate against the work
surface and remove your finger from the vacuum
release valve. Before beginning drilling and during
operation, it must be ensured that the pressure gauge
pointer remains within the green area.
4. The four levelling screws should then be used to lev-
el the baseplate. The spirit level on the baseplate serves
as a levelling aid.
5. Tighten the lock nuts to prevent further movement of
the levelling screws.
6. An additional means of securing the drill stand must
be employed when drilling horizontally (e.g. a chain
attached to an anchor, ...)
6.7.3 Securing the drill stand with a quick-release
brace (e.g. between floor and ceiling)
1. Extend the hole centre indicator and then use it as an
aid to bring the drill stand into alignment with the cen-
tre point of the hole to be cored.
2. Position the end of the quick-release brace carefully
in the inner oval of the baseplate (not on the level indi-
cator or pressure gauge).
3. Secure the baseplate by applying slight pressure with
the quick-release brace.
4. The four levelling screws should then be used to lev-
el the baseplate. The spirit level on the baseplate serves
as a levelling aid.
5. Tighten the lock nuts to prevent further movement of
the levelling screws.
6. Tighten the quick-release brace securely.
VACUUM
VACUUM
