Hilti DD 350-CA Manual De Instrucciones página 18

The vacuum base plate is available as an accessory.
1. Turn the four leveling screws until they project ap-
proximately 5 mm beneath the vacuum base plate.
2. Connect the vacuum connector on the vacuum base
plate to the vacuum pump.
en
3. Place the drill stand on the vacuum base plate.
4. Fasten it securely using the screw and washer sup-
plied.
5. Locate the center point of the hole to be drilled.
6. Beginning at the center point of the hole to be drilled,
mark out a line with a length of approx. 800 mm in
the direction of where the core drilling system is to
stand.
7. At a distance of 165 mm (6 ½") from the center point
of the hole to be drilled, make a mark on the 800 mm
long line.
8. Bring the indicator marks on the vacuum base plate
into alignment with the 800 mm (31 ½") long line.
9. Align the middle of the front edge of the vacuum
base plate with the mark at 165 mm (6 ½") on the
line.
10. CAUTION Make yourself familiar with informa-
tion contained in the operating instructions for
the vacuum pump and follow these instructions
before using it.
Switch on the vacuum pump and press the vacuum
release valve.
11. Adjust the position of the drill stand while keeping
the vacuum release valve pressed in. Release the
valve as soon as the drill stand is correctly po-
sitioned. Press the drill stand against the working
surface.
12. WARNING Before beginning drilling, during
drilling and until the core drilling system is
dismantled, it must be ensured that the pressure
gauge indicator remains within the green area.
WARNING The anchor base plate cannot and
should not be leveled on the vacuum base plate.
Level the vacuum base plate by turning the four
leveling screws.
NOTE The two leveling indicators incorporated in
the carriage serve as an adjustment aid.
13. An additional means of securing the drill stand must
be used when drilling horizontally. (e.g. a chain at-
tached to an anchor, etc.).
14. Make sure that the drill stand is fastened securely.
5.5 Setting the drilling angle on the drill stand 8
The drilling angle can be adjusted to a maximum of 45°.
CAUTION
At the hinged joints on the drill stand there is a risk of
crushing the fingers. Wear protective gloves.
1. Loosen the bolt at the top end of the brace and at
the pivoting joint at the bottom end of the rail.
2. Adjust the rail to the desired angle.
NOTE The angle scale at the rear serves as an
adjustment aid.
3. Tighten the bolt at the top end of the brace and at
the pivoting joint at the bottom end of the rail.
10
5.6 Extending the rail 9
CAUTION
When starting holes use only core bits or extended
core bits with a maximum total length of 650 mm.
1. Remove the protective end cap with built-in end
stop from the top end of the rail.
2. Fit the protective end cap with built-in end stop to
the end of the extension rail.
NOTE In addition, a depth gauge (accessory) can
also be fitted at the lower end of the rail.
3. Fit the cylindrical connector on the extension rail
into the end of the rail on the drill stand.
4. Secure the extension rail by turning the eccentric
pin.
NOTE After removing the extension rail, the pro-
tective cover cap must be refitted to the rail on the
drill stand in order to ensure that safety-relevant end
stop function is restored.
5.7 Fitting the spacer 10
NOTE
When core bits with a diameter of 300 mm or greater
are used, the distance between the drill stand and the
drilling axis must be increased by fitting a spacer. The
hole center indicator is no longer functional when spacers
are used. A maximum of 2 spacers may be fitted, one
behind the other.
At this stage, the core drilling machine should not already
be mounted on the drill stand.
1. Lock the carriage in position on the rail and check
that it holds securely.
NOTE The carriage is locked when the locking pin
is engaged.
In this position, no movement of the carriage is
possible.
2. Pull the eccentric pin out of the core drilling machine
mount.
3. Fit the spacer onto the carriage.
4. Push the eccentric pin into the carriage as far as it
will go.
5. Use the hand wheel to tighten the eccentric pin
moderately in a clockwise direction.
NOTE The locking pin will shear if excessive force
is applied.
5.8 Mounting the machine on the drill stand 11
1. Lock the carriage in position on the rail and check
that it holds securely.
NOTE The carriage is locked when the locking pin
is engaged.
In this position, no movement of the carriage is
possible.
2. Pull the eccentric pin out of the core drilling machine
mount.
3. Fit the machine onto the carriage or the spacer.
4. Push the eccentric pin into the carriage or the spacer
as far as it will go.