You'll want to clean that out to keep your cut even and prevent corrosion. Here's the safe way to do it.
- First, turn the mower off and pull out the battery pack. This is non-negotiable for safety.
- Tip the mower onto its side. Important: make sure the side with the battery port, controls, and the 'Smart Pace' dial is facing upward. You don't want any fluids or debris getting into those components.
- Use a scraper, a stiff brush, or a hose to remove the caked-on grass clippings and dirt from the underside of the deck. Avoid using excessive water pressure directly on the motor area.
- Let everything dry completely before you put the battery back in and use the mower again.
IF THAT DIDN'T WORK: If grass is really welded on, let it soak with water for a bit to soften it up before scraping. Don't use metal tools that could gouge the deck coating.
HEADS UP: Clean the deck after every few uses, especially if the grass was damp. It makes the job much easier and extends the life of your mower.