Hilti AG 4S-A22 Bedienungsanleitung Seite 31

3.4 ATC
The power tool is equipped with the ATC (Active Torque Control) quick-acting electronic cut-out.
If the accessory tool sticks or stalls, the power tool will suddenly pivot about its own axis in the opposite
direction. ATC detects this sudden pivoting movement of the power tool and switches the tool off immediately.
For ATC to function correctly, the power tool must be free to pivot.
After an ATC cut-out, switch the power tool off and then on again.
3.5 Temperature-dependent motor protection
The temperature-dependent motor protection system monitors current input and motor temperature and
thus prevents the power tool overheating.
If the motor is overloaded through application of excessive working pressure, the power tool's performance
drops noticeably or it may stall completely.
If the power tool stalls or slows significantly due to overloading, release the pressure applied to the tool and
then allow it to run under no load for approx. 30 seconds.
3.6 Guard with front cover
When grinding with straight grinding discs and cutting with cutting discs in metalworking applications, use
the standard guard with front cover.
3.7 DC-EX 125/5" C compact dust hood for cutting (accessory)
When cutting mineral materials with diamond cutting discs, use the DC-EX 125/5" C compact hood.
Use of this guard for working on metal is not permissible.
3.8 DC-EX 125/5"M dust hood for grinding (accessory)
The power tool must be equipped with a dust hood when mineral materials are cut or slit with diamond
cutting discs.
CAUTION Use of this hood for working on metal is prohibited.
3.9 DG-EX 125/5" dust hood for grinding (accessory)
The grinding system is suitable only for occasional use with diamond cup wheels for grinding mineral
materials.
Use of this guard for working on metal is not permissible.
3.10 Li-ion battery charge status display
The charge status of the Li­ion battery is displayed after one of the two battery release buttons is pressed.
Status
4 LEDs light.
3 LEDs light.
2 LEDs light.
1 LED lights up.
1 LED flashes.
Indication of the charge status is not possible while the power tool is in operation or immediately
after operation. If the battery charge status LEDs flash, please refer to the information given in the
Troubleshooting section.
4 Consumables
Only synthetic resin-bonded, fiber-reinforced discs with maximum Ø 125 mm which are approved for use at
a rotational speed of at least 11,000/min and a peripheral speed of 80 m/s may be used.
The maximum permissible grinding disc thickness is 6.4 mm and the maximum cutting disc thickness is
3.0 mm.
*2223267*
Printed: 29.08.2019 | Doc-Nr: PUB / 5476774 / 000 / 02
2
Meaning
Charge status: 75 % to 100 %
Charge status: 50 % to 75 %
Charge status: 25 % to 50 %
Charge status: 10 % to 25 %
Charge status: < 10 %
2223267
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