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Beogram 120X Idler wheel

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Motorman
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Motorman Posted: Tue, Feb 23 2021 9:41 AM

Dear all,

I am writing here to share with you an interesting experience.
I have just restored a Beogram 1202 and stumbled across the well-known Idler Wheel problem. The rubber coating had hardened and had pressure marks. The running noise was unbelievable!
Unfortunately, Martin (Dillen) has no more replacement Idler wheels at the moment.
So I had to help myself in another way.
First I sanded the pressure marks down with very fine sandpaper (grade 600) and a standing drill.
Now the rumbling noise was gone and luckily the diameter was still big enough for the turntable to reach the right speed.
What remained was a very unpleasant hissing noise due to the hardened rubber.
Then I remembered a trick I know from restoring cars. Rubber parts that cannot be replaced can be revived by soaking them in fabric softener for a few days.
I also tried this with the Idler wheel.
I soaked it in fabric softener for a week and, lo and behold, the record player runs very quietly again. I am very happy with the result!
I know this is only a temporary solution and I don't know how long it will last. But I hope that it will at least work until Martin (Dillen) can deliver beautifully remanufactured parts again.
Maybe this solution will help one or the other here in the forum.

Kind regards,
Wolfgang

Peter8300
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Peter8300 replied on Sun, May 16 2021 9:19 PM

Thanks for sharing, great info.

Peter

Dillen
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Dillen replied on Sun, May 16 2021 10:42 PM

Currently prototype testing a new batch.

Martin

sailor2
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sailor2 replied on Sun, Sep 12 2021 9:25 PM

Martin

 

I need idler wheel for beogram 1001

Andrey

 

olazabalrok
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I’m thinking about doing this as well, but have no experience in repairing these things. So how difficult is it to remove the idler wheel? Any help appreciated!

Motorman
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Motorman replied on Fri, Oct 15 2021 4:26 PM

That's not too difficult. The best thing to do is to look for the service manual for the Beogram 1202.

For example here: https://elektrotanya.com/bang_olufsen_beogram_1202_3000.pdf/download.html

The following thread is unfortunately in German but the pictures attached might help:

https://old-fidelity-forum.de/thread-10467.html?highlight=beogram+1202

Most important: Take your time and take lots of photos while disassembling.

If the BG is still able to reach the right speed then do not disassemble the motor it self!

That is a different cattle of fish altogether!

olazabalrok
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Thanks for the reply, I'll see what I can do :)

Peter8300
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Peter8300 replied on Mon, Oct 25 2021 3:39 PM

Motorman:

That's not too difficult. The best thing to do is to look for the service manual for the Beogram 1202.

For example here: https://elektrotanya.com/bang_olufsen_beogram_1202_3000.pdf/download.html

The following thread is unfortunately in German but the pictures attached might help:

https://old-fidelity-forum.de/thread-10467.html?highlight=beogram+1202

Most important: Take your time and take lots of photos while disassembling.

If the BG is still able to reach the right speed then do not disassemble the motor it self!

That is a different cattle of fish altogether!

 

So Wolfgang, does the trick still works? Still nice soft and silent?

Peter

 

Motorman
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Motorman replied on Mon, Oct 25 2021 5:52 PM

Hi Peter,

yes it still works like a charme!

I am amazed myself how well it works.

 

Kind regards,

Wolfgang

Peter8300
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Peter8300 replied on Wed, Oct 27 2021 9:43 AM

Hi Wolfgang,

Sounds great, I will get on it immediately :-)

Best

Peter

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