I've recently acquired (yesterday) a Garrard 401. It's in first class condition in a lovely plinth but has arrived with a problem

The 'eddy wheel' (used in conjunction with a magnet for speed adjustment) is scraping the top of the motor & I need to know what adjustments I can make to remedy this please.

It literally just needs to be lifted a tiny amount, there are grub screws but I don't want to start loosening things when I don't actually know what I'm doing.

Thanks in advance for any input.