SME 3012 circa 1969 cueing mechanism - diyAudio
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Old 11th April 2004, 04:11 PM   #1
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Default SME 3012 circa 1969 cueing mechanism

I have one of these with an Ortofon SPU Gold [Van den Hul retipped]

The silicon damping fluid in the cue mechanism has dried up which means that I dare not let the arm auto descend - unless I want to watch the arm bounce up and down on the record until the cantilever breaks.

Has anyone ever replaced the fluid in the cueing mechanism?

It used to be a factory job but SME no longer services the 3009 etc range so I have been told.

I supect you can't actually open the shell to replenish the damping fluid.
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Old 11th April 2004, 10:39 PM   #2
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Hi
As far as i remember the vertical "pin" in the lift is threaded so You can unscrew it and get new fluid in. But i think You would get the field sevice manual from:mailto:service@sme.ltd.uk (The SPU and 3012 combination i think still is about as good as it gets )
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Old 11th April 2004, 11:32 PM   #3
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I've done it a few times. Don't remember many details other than it was really hard to open it and you need the highest possible viscosity (1000000?) silicone oil. I never managed to get such thick oil but after the repair it worked like a dream anyway.
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Old 12th April 2004, 12:50 AM   #4
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Hi,

Quote:
I never managed to get such thick oil but after the repair it worked like a dream anyway.
Neither have I but I used the thickest grade I could order from the pharmacy and that worked just as well.

If it's the same grade as the one used in the damping trough of the arm itself then I still have an original container from SME in case anyone's desperate...

Cheers,
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Old 12th April 2004, 05:59 PM   #5
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Thanks for all this - I will ring SME tomorrow and let you know. Needless to say the pin seemed reluctant to unscrew!
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Old 23rd April 2004, 09:38 AM   #6
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I did this some years ago with my old 3009 SME. I used 1000000 silicon oil, but 500000 is also ok. You have to dismantle the lever mechanismus by screwing out the 2 little screws on the topside of the lever and putting up the cover and fill in a tiny quantity of such oil. it works fine then

regards
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Old 23rd April 2004, 06:14 PM   #7
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Thanks very much for this - I will have a go.

SME did not want to know - they no longer service these arms.

I did try to buy an old 3009 Series 2 original for the part but was warned that it had the same problem.
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