Operation; Working With The Power Tool; Activation Of The Tool's Theft Protection System; Switching Off - Hilti DCH 300 Mode D'emploi

7 Operation

DANGER
Hold the power tool by insulated gripping surfaces
only, when performing an operation where the cutting
accessory may contact hidden wiring or its own cord.
Cutting accessory contacting a "live" wire may make
exposed metal parts of the power tool "live" and could
give the operator an electric shock.
WARNING
Do not use the power tool if it starts with a jolt.This
may be an indication that the electronic control unit is
defective. Have the power tool repaired by Hilti Service
immediately.
CAUTION
The power tool and the cutting operation generate noise.
Wear ear protectors. Exposure to noise can cause hear-
ing loss.
CAUTION
The cutting operation may cause dangerous splinters.
Splintering material presents a risk of injury to the eyes
and body. Wear eye protection and a hard hat.
CAUTION
The direction of advance is important. The power
tool must always be advanced with the guide wheels
ahead and in contact with the material being cut.
There is otherwise a risk of kick-back.
WARNING
The electric supply voltage must comply with the
information given on the type identification plate on
the power tool.
CAUTION
The cutting disc and parts of the power tool may get hot
through use. There is a risk of burning your hands. Wear
protective gloves. Touch the power tool only at the
grips provided.
CAUTION
Use clamps or a vice to hold the workpiece securely.
WARNING
Slits cut in loadbearing walls of buildings or other struc-
tures may influence the statics of the structure, especially
when steel reinforcing bars or load-bearing components
are cut through. Consult the structural engineer, ar-
chitect, or person in charge of the building project
before beginning the work.

7.1 Working with the power tool

Take care to ensure that the closed side of the guard is
always positioned toward the operator's body.
Adjust the position of the guard (hood) to suit each cutting
application.
7.2 TPS theft protection system (optional)
NOTE
The power tool may be equipped with the optional theft
protection system. If the power tool is equipped with this
feature, it can be unlocked and made ready for operation
only with the corresponding TPS key.
7.2.1 Unlocking the power tool
1. Plug the supply cord into the power outlet. The
yellow theft protection indicator LED blinks. The
power tool is then ready to receive the signal from
the TPS key.
2. Hold the TPS key against the lock symbol. The
power tool 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 power
tool remains ready for operation for approx. 20 min-
utes. In the event of a longer interruption, the TPS
key must be used again to unlock the power tool.
7.2.2 Activation of the tool's theft protection
system
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.
7.3 Switching on
1. Plug the supply cord into the power outlet.
2. Always hold the tool securely with both hands on
the grips provided.
3. Unlock the on / off switch by pressing the switch-on
interlock release button.
4. Press the on / off switch.
5. Reposition your thumb around the rear grip.

7.4 Switching off

Release the on / off switch.
The tool stops after the on / off switch is released.
The switch-on interlock is re-activated.
en
11