I will treat all of them, just to be sure. In the meantime I got some super glue. I bet you've never heard about these brands (me neither) Mostly you can get here (Czech Republic) consumer Loctite glue (gel and
It’s highly recommended to use threadlocker (such as Loctite) on the motor screws, as vibrations can cause them to loosen over time. Some motors come with threadlocker pre-applied (appearing as a blue coating on the threads), but the ECO II motors do not, so you’ll need to apply i...