18 English
5.14 Switching the cutter off
▶ Release the on/off switch.
◁ The motor is switched off, the cutting disc slows and stops.
◁ The switch-on safety lock is re-activated.
6 Care and maintenance
WARNING
Danger of electric shock! Carrying out care and maintenance while the supply cord is connected to the
power outlet presents a risk of serious injuries including burns.
▶ Always unplug the supply cord before carrying out all care and maintenance tasks.
Care
▶ Keep the product, especially its grip surfaces, clean and free from oil and grease.
▶ Do not use cleaning agents containing silicone.
▶ Never operate the product with the air vents blocked. Clean the air vents carefully using a dry brush. Do
not use a sprayer, steam pressure cleaning equipment or running water for cleaning. This can endanger
the electrical safety of the power tool.
▶ Do not permit foreign matter to penetrate inside the product.
▶ Clean the outside of the power tool at regular intervals with a slightly damp cloth.
Under extreme conditions, when the power tool is used on metal conductive dust can accumulate in the
interior. This can impair the power tool's protective insulation.
▶ In cases of this nature, if possible use a stationary dust extraction system and clean the air vents at
frequent intervals.
DCH 300
▶ In these cases, connect a portable residual current device (PRCD) between the power tool and the
power source.
Maintenance
WARNING
Danger of electric shock! Improper repairs to electrical components may lead to serious injuries including
burns.
▶ Repairs to the electrical section of the tool or appliance may be carried out only by trained electrical
specialists.
▶ Regularly check all external parts of the power tool and the accessories for signs of damage and make
sure that all the controls function correctly.
▶ Do not use the power tool if parts are damaged or if the controls do not function correctly. Have the
power tool repaired by Hilti Service.
7 Transport and storage
WARNING
Fire hazard. Hot parts of the machine could ignite material lying about in the surrounding area.
▶ Allow the product to cool down completely before packing it away or loading it into a vehicle..
CAUTION
Risk of damage. The cutting disc may suffer damage if the power tool is transported with the disc fitted.
▶
Remove the cutting disc before transporting the tool.
▶ Remove the cutting disc. → page 15
▶ Store the cutting discs in accordance with the manufacturer’s recommendations.
8 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.
Printed: 23.10.2018 | Doc-Nr: PUB / 5459263 / 000 / 00
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