Hi,
Welcome to Beoworld and thanks for signing up as a silver member, your support is greatly appreciated !
There are three adjustment screws with leaf springs for the platter height.
I suggest you adjust them and set the platter apprx 1mm above the surrounding aluminum surface.
They can be accessed by lifting off the platter. The platter lifts straight up but will often bind drastically.
For you, being a silver member, the service manual is available for download
from the main website/products section.
Martin