Operation - Hilti DD 120 Mode D'emploi

CAUTION
Disconnect the supply cord plug from the power out-
let.
NOTE
If using a C-Rod, A-Rod, M27 or BR chuck, lock the drive
en
shaft with an M27 open-end wrench and use a suitable
open-end wrench to release the core bit.

7 Operation

WARNING
Make sure that the supply cord does not come into
contact with rotating parts.
WARNING
Make sure that the supply cord is not pinched and
damaged as the carriage advances.
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.
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. Connect the supply cord to the electric supply and
press the "I" or "Reset" button on the ground fault
circuit interrupter. The yellow theft protection indica-
tor 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.
In the event of a longer interruption, the TPS key
must be used again to unlock the machine.
12
1. Turn the carriage brake lever to lock the carriage on
the rail. Check that it is mounted securely.
2. Open the chuck (BI+) by turning it in the direction of
the open brackets symbol.
3. Pull the sleeve on the chuck in the direction of the
arrow towards the machine.This releases the core
bit.
4. Remove the core bit.
7.1.2 Activation of the theft protection system for
the machine
NOTE
Further detailed information on activation and use of the
theft protection 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)
208188 B/2.2004
(Note: An isolating transformer is used with the GB ver-
sion.)
1. Plug the machine's
earthed/grounded power outlet.
2. Press the "I" or "Reset" button on the ground fault
circuit interrupter (GFCI).
The drilling performance indicator lights orange.
3. Press the "0" or "Test" button on the ground fault
circuit interrupter (GFCI).
The indicator must go out.
supply cord into an