Beogram 1100 33/45 speed selector

[Peter Fabian]

Hello,

I got in my hand a Beogram 1100 which needed a bit of love. Mechanically, I now have it mostly sorted, including replacing bearings in the motor.

The only issue I still have, is that the speed change for 45s is not working.

I am having a bit of an issue understading what is it that is supposed to happen.

If I have it right: Idler wheel (102) is supposed to contact a different part of the stepped pulley (108). I am guessing the pulley is supposed to move down to allow for this. Or the idler wheel move up.
But I am not sure how.
Does it have to do with wire arm (144) that’s connected to a spring (111) in the motor assembly? I might have that misaligned or something? The arm I think moves fine but doesn’t do anything as far as I can tell.

The pickup mechanics on the 45s and 33s are fine, it goes down exactly where it should on both cases (unlike my 4002, which is in dire need of alignment, I have to admit)

[Dillen]

Speed switching is done by lifting/lowering the idler wheel, running it on different diameters of the motor pulley.
The lidting is done by rotating a wire so that the “pin” carrying the wheel moves up and down inside a “tube”.
The mechanism could have seized up – take apart, clean and lubricate.

Martin

[Peter Fabian]

Thanks. I’ve ascertained the same in the meantime. The wire was being rotated, but there was so much resistance that it just popped out from the groove it would sit in.

 

Once I figured that it’s the idler that should be moving, I was able, with some considerable force, able to make it jump up in its track. There was a decent amount of old, hardened grease. After a bit of cleaning with IPA and some WD40 lubricant to get it moving, it now jumps along fairly happily. Just need to fit the belt (on the way from you as we speak) and it should be good for a while.

• This reply was modified 16 minutes ago by Peter Fabian.

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