Removing The Diamond Core Bit (Bi+ Chuck); Tps Theft Protection System (Optional); Enabling A Machine Equipped With Theft Protection System (Tps); Portable Residual Current Device (Prcd) - Hilti DD 120 Manual De Instrucciones

1. Set the selector switch to suit the diameter of the core bit used.
2. Turn the switch to the recommended setting while turning the core bit by hand at the same time.
5.9

Removing the diamond core bit (BI+ chuck)

DANGER
Risk of injury Fragments of the workpiece or of broken insert tools may be ejected and cause injury beyond
the immediate area of operation.
▶ Do not use damaged insert tools. Check the insert tools for chipping, cracks, or heavy wear each time
before use.
CAUTION
Risk of injury! Inadvertent starting of the product.
▶ Unplug the supply cord before making adjustments to the power tool or before changing accessories.
C-Rod, A-Rod, M27 SW 27or BR chucks require the use of a 27 mm open-ended wrench to lock the
arbor and a suitable open-ended wrench for removing the core bit.
1. Lock the diamond core drilling machine by fully tightening the carriage lock.
2. Open the chuck (BI+) by turning it in the direction of the open brackets symbol.
3. Pull the sleeve toward the machine, as indicated by the arrow, to unlock the core bit.
4. Remove the core bit from the chuck (BI+).
6 Operation
6.1

TPS theft protection system (optional)

The product can be equipped with the optional TPS theft protection system. It can then be unlocked and
made ready for operation only through use of the corresponding TPS key.
6.2

Enabling a machine equipped with theft protection system (TPS)

1. Plug the supply cord of the diamond core drilling machine into the power outlet.
2. Press the "Reset" or "I" button on the PRCD.
➥ The yellow theft protection indicator LED flashes.
3. Hold the TPS key directly against the lock symbol.
➥ The yellow theft protection indicator LED goes out and the machine is enabled.
If the power supply is interrupted, the product remains ready for operation for approximately
20 minutes. If the interruption is longer, the theft protection system has to be deactivated again
with the TPS key.
6.3

Portable residual current device (PRCD)

1. Plug the diamond core drilling machine's mains plug into an earthed/grounded power outlet.
2. Press the "I" or "RESET" button on the PRCD.
➥ The indicator lights up.
3. Press the "0" or "TEST" button on the PRCD.
➥ The indicator goes out.
WARNING
Risk of injury due to electric shock! Do not continue operating the diamond core drilling machine if the
indicator on the ground fault circuit interrupter does not go out when the 0 or the TEST button is pressed.
▶ Have your diamond core drilling machine repaired by Hilti Service.
4. Press the "I" or "RESET" button on the PRCD.
➥ The indicator lights up.
*274865*
Printed: 09.08.2019 | Doc-Nr: PUB / 5069516 / 000 / 07
274865 English 31