Thank you so much for your prompt replies.
With regards to the owners manual, i can only seem to find french or german versions which are further baffling me (babelfish is such an idiot), any idea about an English version?. I TOTALLY AGREE THAT IT SEEMS AS IF IT IS RUNNING A FEW MM TOO LOW! Rergarding your suggestion that the bearing within the aperture may not be present, the bearing and shaft are attached to the platter (the bearing is present), is there a further bearing at the bottom of the aperture within the chassis? (sorry for the poor use of technical terms but, as stated, i am both frighteningly out of my depth and a moron).
If someone could point me in the direction of a good and easy to follow step-by-step guide to servicing the turntable that would be amazing. It's such a shame as it runs really well apart from the above.
Again, amny thanks for you help in advance,