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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...

Monday, May 14, 2018

Beogram 4004 (5526): Installation of New Transport Lock Bushings

The Beogram 4004 (5526) that I am restoring right now had the orange type of transport lock bushings, which are prone to degradation. This was evident immediately after taking the Beogram out of the box, since there were telltale orange plastic fragments all over the place:
This shows the left transport lock without its bushing:

I removed the floating sub-chassis of the Beogram, which revealed the degraded remnants of all three transport lock bushings:
I vacuumed the enclosure, and then it was time to install the new 3D printed bushings:
Each bushing has two parts, one to be inserted from each side of the lock orifice. Like all parts featured on this blog they are available to other B&O enthusiasts. Order them directly via the Beolover Shapeways store. Six parts are needed for all three locks. This shows the lower part of the left lock:
And with the sub-chassis outfitted with a new bushing installed:
I also did this for the other two locks and then I replaced the top halves of the locks:
Now this Beogram can be shipped again without fear for damage due to loose transport locks.

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