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2. Slide the safety lock forward to unlock the on/off switch.
3. Press the on/off switch as far as it will go.
◁ The motor runs.
7.2.2 Switching off
▶ Release the on/off switch.
◁ The safety lock jumps back automatically into the locked position and the motor stops.
8 Care and maintenance
Note
To help ensure safe and reliable operation, use only genuine Hilti spare parts and consumables. Spare
parts, consumables and accessories approved by Hilti for use with the product can be found at your
local Hilti Center or online at: www.hilti.com
8.1 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 (GFCI) 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.
8.2 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.
9 Transport and storage
▶ Do not transport the power tool with an accessory tool fitted to it.
▶ Always unplug the supply cord before storing the power tool.
▶ Store the product in a dry place where it cannot be accessed by children or unauthorized persons.
▶ After long periods of transport or storage, check the power tool for damage before use.
10 Troubleshooting
If the trouble you are experiencing isn't listed in this table or you are unable to remedy the problem by
yourself, please contact Hilti Service.
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