9
Tool Specifications
Machine Elements
1
Diamond core bit*
2
Locking screw
3
Control opening
4
Handle screw
5
Auxiliary handle
6
On/Off switch
7
Speed controller
8
Hose coupling with water cock*
9
Water supply connection
10
Reset button for PRCD residual current device
11
Test button for PRCD residual current device
12
Control light
13
Allen key (3 mm)
14
Drilling jig*
* Not all of the accessories illustrated or described are
included as standard delivery.
Intended Use
The machine is intended for wet drilling in tiles and
natural stone slabs/flagstone with the use of dia-
mond drill bits or original Würth diamond tile core
bits.
The user is responsible for damage caused by usage
other then intended.
Initial Operation
Observe correct mains voltage:
The voltage of the
power source must agree with the voltage specified
on the nameplate of the machine.
Adjusting the Auxiliary Handle
Loosen the handle screw
4
on the auxiliary handle
5
and turn the auxiliary handle to the working posi-
tion.
Tighten the handle screw again.
Checking the PRCD Residual Current Device
Each time before starting operation, the
proper function of the PRCD residual current
device must be checked. Make sure that the On/
Off switch 6 is set to off in order to avoid uninten-
tional starting of the machine.
– Push the “RESET” button
10
on the PRCD residual
current device. The red control light
12
indicates
that the residual current device is ready for operati-
on.
– Push the “TEST” button
11
. The control light
12
must go out.
Otherwise, the machine may not be
used.
Setting the Speed Range
Use the speed controller
7
for adjustment of the opti-
mal speed:
Drill bit Ø [mm]
Speed [rpm]
Speed controller
4 - 10 *
10,000
6
13 -18
8,600
5
20-26
7,200
4
35-40
5,800
3
45-50
4,400
2
51-68
3,400
1
Switching On and Off
Switching On: Push the On/Off switch
6
toward the front
Switching Off: Press on the On/Off switch
6
.
If the PRCD residual current device should
actuate during operation, switch the On/Off
switch 6 off in order to avoid unintentional restart-
ing of the machine. Check if water has penetrated
into the machine. Only switch the machine on
again when the motor housing is dry.
Tile drill
NDS 68
Article number
0702 419 X
Rated power
750 W
No-load speed
3000 - 10000 min
–1
Water connection
1/4“ rapid-action coupling
Drilling diameter
4 - 68 mm
Dimensions (LxBxH)
350x190x180 mm
Weight, approx.
2.6 kg
Protective measure in
case of wet operation
PRCD residual current device
10 mA
Protection class
/ II
NDS 68.book Seite 9 Mittwoch, 20. September 2006 4:01 16
