# Maintenance and Cleaning

- To ensure safe and efficient operation, always keep the power tool and the ventilation slots clean.

If the battery is no longer working, please contact an authorised after-sales service agent for Bosch power tools.

In order to avoid safety hazards, if the power supply cord needs to be replaced, this must be done by Bosch or by an after-sales service centre that is authorised to repair Bosch power tools.