# Maintenance and Cleaning

- Remove the battery from the power tool before carrying out work on the power tool (e.g. maintenance, changing tool, etc.). The battery should also be removed for transport and storage. There is risk of injury from unintentionally pressing the on/off switch.

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

Keep the parking rest (32) clear and clean it regularly.

When the carbon brushes are worn out, the power tool switches itself off. The power tool must be sent to the after-sales service for maintenance; see the "After-Sales Service and Application Service" section for addresses.

## Changing the Drive Belt (see figures Q–R)

Unscrew the screw (8) completely and take off the belt cover (9). Remove the worn drive belt (33).

Before fitting a new drive belt (33), clean the two belt wheels (34) and (35).

First place the new drive belt (33) onto the small drive wheel (35), and then press the drive belt (33) onto the large drive belt (34), turning it by hand.

Make sure that the drive belt (33) runs exactly in the lengthways grooves in the drive wheels (34) and (35).

Put the belt cover (9) on and tighten the screw (8).