SDS question


Hello friends,
I was checking my turntable speed today using my KAB speed strobe and found that my table was running quite slow. I had the VPI SDS calibrated at 59.85hz and I thought I had the speed perfect. Today, I needed to adjust it to 60.03hz to get it dead accurate again.
What might cause such a big change to have to be made? I was wondering if it might be the weather (it has turned cold recently here in Chicago)?
Any thoughts would be appreciated.
Thanks.
tfkaudio

Showing 4 responses by tfkaudio

Thanks for all the responses. I lubricated the bearing with white lithium grease about 6 months ago, so I should be good there.
The belt is the original belt so it is about 3 years old. Time for a change?
The motor is also original, and it does seem a tiny bit noisier than it was 3 years ago. How long should a motor be expected to last?
Actually, I was wondering if the how much an acrylic platter would expand/contract with temperature changes. Is this a possibility? The room containing my TT gets very cold when I'm not home and the heat is off.
Hello, and thanks again for the input.

I am going to order a new belt. 3 years is a good run for the old one.

Stringreen, regarding oil for the motor, you said that Harry is sending you some... does that mean that any old motor oil won't do?

Thanks again.

Tom

P.S. Yes, I have a VPI Scoutmaster. I was surprised to see that I failed to mention that up front.
According to my manual, the bearing is lubricated with white lithium grease. So that is what I use.

The motor would be lubricated with oil. I'm going to call VPI and ask for some, or what kind to buy.

Tom
Thanks again to everybody. I had always wondered how to go about oiling the motor, since there is almost no space between the pulley shaft and the motor base. The VPI manual really should have explained it just like Sberger did!

Cheers.

Tom