11
5. Technical data
Nominal voltage
400 V / 3 ~
Nominal current input
7.5 A
Nominal power input
4.1 kW
Mains frequency
50 Hz
Mains plug
16 A
Fuse rating
16 A
Core bit diameter range
80–500 mm
Speeds under load
1st speed
160 r.p.m.
2nd speed
340 r.pm.
3rd speed
510 r.p.m.
Torque
1st speed
Max. 300 Nm
2nd speed
Max. 200 Nm
3rd speed
Max. 150 Nm
Weight (motor unit)
24 kg
Supply cord length
5 m
Core bit connection end
DD-C-BU
Hilti patent
Core bit connection end
DD-C-BS
1
1
/
4
″
UNC
Core bit connection end
DD-C-Pixie
Motor cooling
Water cooling
Minimum flow rate
3.3 l/min
Protection class
IP55
Motor overheating protection
Direct via motor windings
Mechanical overload protection
Slip clutch
5.1 Noise and vibration
Typical A-weighted noise levels of the machine are:
– Noise (pressure) level:
77 dB (A)
Ear protection must be worn.
Typical exposure of the hand / arm to vibration is less than 2.5 m/s
2
.
Right of technical modifications reserved!
6. Electrical and mechanical safety
6.1 Electrical safety
The ground fault interrupter incorporated in jobsite mains supply circuits pro-
vides protection from faults in the insulation of the motor unit, supply cord
and extension cables. The machine’s earth / ground conductor protects the
operator in case of accidentally drilling into live cables. The built-in undervol-
tage trip prevents the machine from restarting of its own accord when power
returns after an interruption in the power supply.
6.2 Protection against overheating
The motor is protected from the effects of sustained overload by a tempera-
ture sensor built into the motor windings. A warning lamp incorporated in the
ON/OFF switch indicates when activation of this safety circuit is imminent.
6.3 Mechanical safety
The slip clutch incorporated in the gearing section protects the insert tool
and motor unit from damage in case the core bit suddenly sticks.
7.1 Mounting the baseplate taper on the baseplate
2
1
3
4
1. Baseplate
2. Baseplate taper
3. Mounting screws (4)
4. Wrench
(supplied with the
baseplate)
7.2 Fitting the wheel assembly to the baseplate
1
2
3
4
1. Baseplate
2. Wheel
3. Screw
4. 19 mm AF wrench
7.4 Changing the chuck
OPEN
CLOS
E
2
1
3
4
1. Drive shaft
2. Chuck
3. Screws (2)
4. 6 mm AF wrench
(supplied with the chuck)
7.3 Fitting the water collector holder to the baseplate taper
2
1
3
4
1. Baseplate taper
2. Screw
3. Holder
4. 8 mm AF wrench
(supplied with the holder)
7. Assembling the system components
Printed: 07.07.2013 | Doc-Nr: PUB / 5069604 / 000 / 00
