What is this noise?

[jmhines]

Hi - A new Exmark owner here. Can anyone tell me what this sound is and what I need to do to make it stop? Thanks!

 

[Rivets]

Sounds like the belt is slipping when you engage the PTO. When was the last time the belt was changed.

 

[jmhines]

The mower is only 2 months old with 10hrs total.

 

[Rivets]

Time to take it back to the dealer for a warranty inspection. Don’t void the warranty by trying to do it yourself.