Replacement does not require any special tool.
The following wear part must be purchased: air filter element. When buying it, pay attention to the matching engine power.
1. Remove the air filter cover. To do this, open the quick-release shutters (arrows).
2. Remove the filter element. At the same time, take the filter element by the paper folds without a perforated sheet. Don't use any tool.
3. Wipe the filter housing with a cloth.
4. Insert a new filter element into the air filter housing. The sealing rubber must fit snugly on all sides.
5. Check the seal on the air filter cover for damage and replace if necessary.
6. Put on the lid and snap the quick-release fasteners into place.