Audoi turntable motor

Audoi turntable motor

This topic has 5 replies, 4 voices, and was last updated 12 January 2016 at 22:06 by Michael Gilligan.

Viewing 6 posts - 1 through 6 (of 6 total)

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12 January 2016 at 15:35 #220744
Hank Bergmann
Participant
@hankbergmann54529
My REK-O-KUT audio turntable with hysteresus synchronous motor runs at half speed for the first 10 minutes of start-up; then operates normal speed (600 rpm). Why?
Advert

12 January 2016 at 15:35 #32628
Hank Bergmann
Participant
@hankbergmann54529
12 January 2016 at 16:55 #220754
Michael Gilligan
Participant
@michaelgilligan61133
Interesting turntable Hank

**LINK**

Do you mean that they designed it to run at half-speed for the first 10mins, or that it's a fault?

If designed … It may be intended to warm everything up, gently.

MichaelG.
12 January 2016 at 20:18 #220781
John Olsen
Participant
@johnolsen79199
The oil on the spindle bearings might be getting a bit gummy. As it warms up, it frees up. They do say that it has a low torque motor. I'm not sure why they would see that as an advantage.

John
12 January 2016 at 21:28 #220793
Phil Whitley
Participant
@philwhitley94135
Had exactly the same problem on my Bang and Olufsen, stripped it and lubed the motor a couple of times, but it soon went back to its old ways. stripped it again, took the bearings out of the motor, they are the sintered bronze porous type which are impregnated with oil. Soaked them in meths and cleaned them with brake cleaner until no more dirt came out, then dried them off, soaked them in sewing machine oil, refitted them. Perfect!! The oil polymerises over time and goes gummy as John said above, you need to get it all out of the bearing and re oil.

Phil
12 January 2016 at 22:06 #220801
Michael Gilligan
Participant
@michaelgilligan61133
Good logical answers, John & Phil

But … I guess the missing question was:

"half speed for the first 10 minutes" … or,

"some slow speed for about the first 10 minutes"

I, perhaps mistakenly, took Hank's figures literally.

MichaelG.
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