Operation - Hilti DD 120 Bedienungsanleitung

DANGER
To avoid injury, use only genuine Hilti core bits and
DD 120 accessories. If using a machine with a BI+
chuck, only genuine Hilti core bits may be used with
it.
CAUTION
The core bit may become hot during use or during
sharpening. There is a risk of burning your hands. Wear
protective gloves when changing the core bit.
DANGER
Fitting and positioning the core bit incorrectly can lead
to hazardous situations as this may cause parts to break
and fly off. Check that the core bit is seated correctly.
CAUTION
Disconnect the supply cord plug from the power out-
let.
NOTE
C-Rod, A-Rod, M27, and BR chucks are operated with a
27 mm AF open-end wrench.
1. Use the carriage brake to lock the carriage in posi-
tion on the rail and check that the system compon-
ents are securely mounted.
2. Open the chuck (BI+) by turning it in the direction of
the open brackets symbol.
3. Push the diamond core bit into the chuck (BI+) from
below, turning the core bit until the teeth in the
chuck engage with the core bit.
4. Close the chuck (BI+) by turning it in the direction of
the closed brackets symbol.
5. Check that the diamond core bit is securely mounted
in the chuck by pulling on the core bit and attempting
to move it from side to side.

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.
6.1.8 Selecting the speed 7
CAUTION
Do not change gear while the machine is running.
Wait for the spindle to come to a halt.
1. Set the selector switch according to the core bit dia-
meter used. Turn the selector switch to the recom-
mended setting (see section "Description") while
rotating the core bit by hand.
6.1.9 Removing the diamond core bit
CAUTION
The core bit may become hot during use or during
sharpening. There is a risk of burning your hands. Wear
protective gloves when changing the core bit.
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
shaft with an M27 open-end wrench and use a suitable
open-end wrench to release the core bit.
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.
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.
en
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