Motor Start or Motor Run capacitors can be hard to find. Even the
companies tht deal with motors and pumps don't ususually carry them.
Fortunately there's a surplus company (Skycraft) here in town (Orlando)
that carries lots of this kind of stuff. If you send me an E-mail with the
dimensions and how it mounts I'll see what I can find.
Joe
At 03:05 AM 12/4/03 -0500, you wrote:
>On Wed, Dec 03, 2003 at 10:48:35PM -0800, vrs wrote:
>> Hi,
>>
>> I've got an electrolytic I pulled from my TU56 drive because it had a big
>> crusty electrolyte extrusion through the vent plug in the top.
>
>Ewwww.
>
>> .... "SPRAGUE 100 MFD 55V - 60CY A5030". It is 2" in diameter and just
>> over 4" tall, with two solder lugs on top. I think they are connected to
>> the drive motors.
>
>Yes. The motor start capacitors.
>
>> I have looked for replacement electrolytic, but they all have way more
>> capacitance or way more voltage rating, and are nowhere near the right
>> physical dimensions.
>
>Voltages that are "too high" are no problem. Too low is a big no-no. You
>want something with a fairly close capacitance match, because too little
>would probably increase the startup time on the motor and might cause issues
>if too far off.
>
>> Is there a source for exact replacements?
>
>Not that I am aware of.
>
>There are others (David Gesswein?) who have had to replace TU-56 motor caps.
>I have not yet had to do so (but it's been years since I fired mine up, since
>I've only recently repaird my -8/e PSU). My personal priority would have to
>be voltage and capacitance over physical size.
>
>A caveat - these are not filter caps. They are motor start caps (or they
>might be "motor run" caps. They will be hard to find an appropriate sub
>for.
>
>-ethan
>
>--
>Ethan Dicks, A-130-S Current South Pole Weather at 04-Dec-2003 08:00 Z
>South Pole Station
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>
>Ethan.Dicks_at_amanda.spole.gov
http://penguincentral.com/penguincentral.html
>
Received on Thu Dec 04 2003 - 07:28:12 GMT