Sorry I can't help much, I don't have a 5005 but from what you say, and the image of the gauge I'd say it is unlikely to be a stylus pressure issue and more likely an adjustment at the back of the tonearm. You might try and look for a service manual online which usually go through mechanical adjustments. If the issue is electronic then unless you are knowledgeable you'd best find a repairer. EDIT, and are you saying that the issue is solved when you put the scale over 2g? In short, it won't damage the Beogram but it will wear the stylus faster and will cause wear on the records, especially if the tonearm has some other issue. I know back in the days when some "hifi" records players were exerting something like 10g! but generally today they never go over 2.  

Thanks for the advice, etype76. Yes, the stylus pressure seems to be over 2g. I had a look at the service manual and it seems a bit out of my depth so I will bring to the local repair man. Thanks! Olie

More likely a "close to death" stylus…

Unfortunately, the guy I got to service the record player before has retired! Does anyone know of and recommend anyone UK based who still services old B&O products?