Beogram 3300 – wire pulley making contact with platter wheel

[CharlieWednesday]

Hi all

I have a Beogram 3300 that I found was making a noise which worsened as the arm neared the end of the record, so was nearer the centre of the platter.  As well as the unpleasant rubbing nose, the speed of playback was being affected.

I’ve looked inside and I’ve found that the pulley for the arm’s wire drive is making contact with the underside of the wheel that sits below the platter, but only when the arm is nearer to the centre of the platter.

I have tried adjusting the platter height with the three screws (as detailed in the service manual), but that raises and lowers the whole thing, so makes no difference to the distance between the wire pulley and the wheel.

Does anyone know if there’s an adjustment I can make to prevent this problem?

Location: Liverpool

My B&O Icons:

[CharlieWednesday]

Following this, out of curiousity I looked inside by Beogram 4500, 8500 and 9500, which I know have essentially the same mechanism.  I found in each case that the clearance between the platter wheel and the wire drive pulley is very small – probably 0.5mm if that.

However, on my Beogram 3300, I am still unable to figure out why they are meeting each other when the arm is moved inward.  I have been unable to find any way to adjust it.

• This reply was modified 44 minutes ago by CharlieWednesday.

Location: Liverpool

My B&O Icons:

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