Hilti AG 230-27DB Original Operating Instructions page 30

6.6.1 Cutting
▶ When cutting, apply moderate feed pressure and do not tilt the power tool or the cutting disc (when
working, hold at approx. 90° to the surface being cut).
Note
For best results when cutting profiles and square tube, start cutting at the smallest cross section.
6.6.2 Rough grinding
CAUTION
Risk of injury. The abrasive cutting disc could shatter and flying fragments may cause injury.
▶ Never use abrasive cutting discs for grinding.
▶ Move the power tool to and fro while maintaining a 5° to 30° angle of attack and applying moderate
pressure.
◁ This will avoid overheating and discoloration of the workpiece and help ensure an even surface finish.
6.7 Switching on 9
1. Plug the supply cord into the power outlet.
2. Press the safety interlock to unlock the on/off switch.
3. Press the on/off switch as far as it will go.
◁ The motor runs.
6.8 Switching off
▶ Release the on/off switch.
7 Care and maintenance
7.1 Care of the product
DANGER
Electric shock due to breakdown of protective insulation. When working on metal under extreme
conditions, conductive dust may accumulate inside the power tool, thereby adversely affecting the
protective insulation.
▶ Use a stationary dust extraction system when working under extreme conditions.
▶ Clean the air vents frequently.
▶ Use a ground fault circuit interrupter (PRCD) in the electric power supply line to the power tool.
WARNING
Electrical hazards. Improper repairs to electrical parts may lead to serious injuries.
▶ Electrical parts may be repaired only by trained electrical specialists.
▶ Never operate the product when the air vents are blocked. Clean the air vents carefully using a dry brush.
Do not allow foreign objects to enter the interior of the product.
▶ Keep the product, especially its grip surfaces, clean and free from oil and grease. Do not use cleaning
agents containing silicone.
▶ Clean the outer surfaces of the tool with a slightly damp cloth at regular intervals. Do not use a spray,
steam pressure cleaning equipment or running water for cleaning.
Note
Frequent work on conductive materials (e.g. metal, carbon fiber) may make shorter maintenance
intervals necessary. Take your individual workplace risk assessment into account.
7.2 Checks after care and maintenance work
▶ After carrying out care and maintenance, check that all protective and safety devices are fitted and that
they function faultlessly.
24 English
Printed: 26.09.2017 | Doc-Nr: PUB / 5376157 / 000 / 00