Operating Instruction DD 110-W (01)

7Operation
WARNING
Make sure that the supply cord and hoses do not
come into contact with rotating parts.
DANGER
When working with slotted core bits, take care to
keep your fingers out of the slots.
CAUTION
The machine and the drilling operation generate noise.
Wear ear protectors. Excessive noise may damage the
hearing.
CAUTION
Drilling may cause hazardous flying fragments. Flying
fragments present a risk of injury to the eyes and body.
Wear eye protection and a hard hat.
WARNING
In accordance with the applications for which it is de-
signed, the machine produces a high torque. Always
use the side handle and hold the machine with both
hands. The user must be prepared for sudden sticking
and stalling of the cutting tool.
DANGER
The operator must be prepared for sudden sticking
and stalling of the cutting tool and must therefore
have an absolutely secure stance with both feet.
7.1 TPS theft protection system (optional)
NOTE
The machine may be equipped with the optional theft
protection system. If the machine is equipped with this
feature it can be unlocked and made ready for operation
only with the corresponding TPS key.
7.1.1 Unlocking the machine
1. Check that the machine is connected to the electric
supply. The yellow theft protection indicator LED
blinks. The machine is now ready to receive the
signal from the TPS key.
2. Hold the TPS key or the TPS watch strap buckle
against the lock symbol. The machine is unlocked
as soon as the yellow theft protection indicator LED
no longer lights.
NOTE If, for example, the electric supply is briefly
interrupted due to a power failure or disconnected
when moving to a different workplace, the machine
remains ready for operation for approx. 20 minutes.
Intheeventofalongerinterruption,theTPSkey
must be used again to unlock the machine.
7.1.2 Activation of the theft protection system for
the machine
NOTE
Further information on activation and use of the theft pro-
tection system can be found in the operating instructions
for the theft protection system.
7.2 Switching on and checking the ground fault
circuit interrupter (GFCI)
1. Plug the machine’s supply cord into an
earthed/grounded power outlet.
2. Press the “Reset” button on the GFCI ground fault
circuit interrupter.
The indicator must light.
3. Press the “Test” button on the GFCI ground fault
circuit interrupter.
The indicator must go out.
4. WARNING If the indicator continues to light, fur-
ther operation of the machine is not permissi-
ble.Have the machine repaired by trained personnel
using genuine Hilti spare parts.
Press the “Reset” button on the GFCI ground fault
circuit interrupter.
The indicator must light.
7.3 Dry drilling with dust removal
CAUTION
When working, always lead the vacuum cleaner hose
away to the rear of the machine so that it cannot
come into contact with the core bit.
en
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Printed: 16.05.2014 | Doc-Nr: PUB / 5127573 / 000 / 02