[Jukebox-list] Help! Rock Ola Tempo 2 Jukebox speed is about 40 RPM

[Bill Signor]

Hi All,
Thanks for you immediate responses. You are a bunch of great guys out there. 
I did replace the idler wheel and it sounds like 45 rpm except when it's 
playing about 30 mins or longer . Intermittently I'll get a slow down to 
about  42-3 rpm. The julebox doesn't support 33rpm . The motor spins freely 
by hand and the new idler wheel definitely runs faster than the old. I will 
check out the shaft to see if it has two levels on it and then see about 
another washer. Could also try he tape thing temporarily.

You've all been a big help and I'll keep you posted!

Thanks,
Bill
Warwick NY
 Message ----- 
From: "Ray Finch" <babylon at swcp.com>
To: "Jukebox mailing list" <jukebox-list at lists.netlojix.com>
Sent: Saturday, November 03, 2007 6:10 PM
Subject: Re: [Jukebox-list] Help! Rock Ola Tempo 2 Jukebox speed is about 40 
RPM


> Hi Bill,
>
> Funny it's called a Rock Ola Tempo and it's running slow! <G>  I pulled up 
> a pic of it on Google - good looking machine!
>
> If it uses a 115V AC motor, then almost certainly the replacement idler 
> wheel is the wrong size or has another issue.  The speed of an AC 
> (brushless) motor is set by the frequency of the AC current (60Hz).  As 
> long as the motor is getting 60Hz it can't go any faster or slower.  The 
> only thing that could cause it to go slower is friction - or appear to go 
> slower would be an issue with the idler wheel.  Does the motor spin freely 
> by hand?  Have you tried putting the old idler wheel back on?  If the old 
> idler wheel runs the turn table at the right speed then there is an issue 
> with the replacement idler wheel.
>
> One other possibility: Does the motor shaft have two levels on it, one 
> smaller than the other?  If so then perhaps the new idler wheel is 
> elevated and riding on the smaller (33-1/3) level.  That would certainly 
> make the turntable run slower even if everything else seems okay.  Check 
> to see where the idler wheel lands on the motor shaft.
>
> Is there some space between the top of the new idler wheel and the "C" 
> clip holding it on?  If so then perhaps the idler wheel is riding up when 
> the motor is on causing it to run on the 33-1/3 level.  If that is the 
> case then you might need some washers between the idler wheel and the "C" 
> clip.  On a recent Rock-ola I put back together a replacement idler wheel 
> _almost_ rode on the 33-1/3 level.  Putting a couple of washers on over 
> the idler wheel fixed that.
>
> Does this jukebox support 45RPM and 33-1/3RPM?  Maybe it is stuck in the 
> 33-1/3 mode?
>
> Ray Finch
>
>
> On Sat, 3 Nov 2007, James McClave wrote:
>
>> Bill, a couple of possibilities here. Are you sure you replaced the
>> idler wheel with the correct size ?  Also ,  you might try plugging in
>> the turntable direct to 115V  to see if there is any change, thus
>> eliminating anything in your power supply.  For a temporary fix you can
>> increase the diameter of the motor end piece which engages with your
>> idler wheel by neatly wrapping some cloth-type electrical tape around
>> the end piece. To get 5 more rpm, one time around or two times around
>> should get it.  You can achieve the same effect by putting a layer of
>> the same type tape on the inside rim of the turntable itself.  These are
>> just temporary "fixes" to get it up to speed. The motor itself may be
>> going bad , possibly a complete dis-assembly of the motor , cleaning and
>> lubing may be required.   Jim
>>
>> E-mail us at: trollmasters at webtv.net
>>
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