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Beolover SyncDrive: DC Platter Motor Replacement for Beogram 4002 and 4004 (Type 551x and 552x)

Late Beogram 4002 and the 4004 (Types 551x and 552x), which have DC platter motors instead of the earlier synchronous AC motors usually suff...

Thursday, March 24, 2016

Beogram 4000: Restoring the Hood

I finally got my act together and polished the hood of the recently restored Beogram 4000 from Norway. I need to be in the right mood for this 3 hour work out and so I put it up for a few days...it just was more fun to implant a custom designed transformer into a formerly humming Beomaster 4000..;-). 
The hood of this Beogram 4000 showed the usual signs of age and had some deep scratches and other blemishes. Here is an impression of the situation:
So I started out by planarizing the surface with 220 grit sand paper and then polished it back to a translucent state using a Micro-Mesh polishing kit:
After cleaning off all the polishing residue it was time to install new rubber bumpers on the front corners. They level the hood and make closing it a so much more dignified event. The original buyers were long broken off and only their mounting stubs remained embedded in the respective holes in the hood:
I used a 2 mm drill bit to get the stuff out:
and then implanted small segments of 2 mm diameter O-rings:
The 3D printed red square serves as a template for the razorblading of the rubber pieces to the right length on both sides for a level hood:
The final touch was to replace the screw that served as right side hinge with the original metal rod that was sent along with the turntable:
After implanting the rod:
Much nicer! This should be it. I will now play this Beogram 4000 a bit more to make sure that there are no loose ends or intermittent issues and then it will be time to send it back to its owner!

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