Hello Dave,
at first, when I put the new brushes, there was indeed a clicking sound when the drum was turning. It has disappeared now and I was thinking it might come from the new brushes as they were adjusting?
Here is a video I took when I switched manually on the wringing program : the drum was spinning well : https://youtube.com/shorts/l5g_pwzapYE?feature=share at the end you can hear a bit of high pitch noise
Here is a video of me spinning the drum to see if there is weird noise (and I think it’s fine ?) : https://youtube.com/shorts/MNbN9KzWtbA?feature=share
thank you for your help,