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-   -   SME 3012 circa 1969 cueing mechanism (http://www.diyaudio.com/forums/analogue-source/32028-sme-3012-circa-1969-cueing-mechanism.html)

patientdog 11th April 2004 03:11 PM

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.

ingvar ahlberg 11th April 2004 09:39 PM

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 )

analog_sa 11th April 2004 10:32 PM

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.

fdegrove 11th April 2004 11:50 PM

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,;)

patientdog 12th April 2004 04:59 PM

Thanks for all this - I will ring SME tomorrow and let you know. Needless to say the pin seemed reluctant to unscrew!

hsort 23rd April 2004 08:38 AM

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
hsort

patientdog 23rd April 2004 05:14 PM

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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