Re: [MBZ] OT Well pump weirdness

[Jim Cathey via Mercedes]

> This is especially common when the motor is starting under load, such as
> in a pump.
>

The starting load on a centrifugal pump isn't nearly as bad as on a piston
pump.

But your problem sounds like it could be a bad cap.  I'd think, though,
that you'd
hear humming/buzzing because the running winding will be getting full
current
without the back-EMF it gets while spinning, and so would be drawing a lot
more
current than normal.

Squealing is not normal, and would indicate bad bearings.

-- Jim
___
http://www.okiebenz.com

To search list archives http://www.okiebenz.com/archive/

To Unsubscribe or change delivery options go to:
http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com

Re: [MBZ] OT Well pump weirdness

[Max Dillon via Mercedes]

Awesome, thanks.  Somewhere I have a cheap analog meter...
-- 
Max Dillon
Charleston SC
'87 300TD
'95 E300

On July 21, 2016 8:49:07 AM EDT, Dan Penoff via Mercedes 
 wrote:
>Typically, a failed starting capacitor or centrifugal switch will make
>it buzz or hum on starting (or attempting to start) and the motor won’t
>spin up.  “Helping” it turn will get it going.
>
>This is especially common when the motor is starting under load, such
>as in a pump.
>
>Find the capacitor and with it disconnected put an ohmmeter across the
>terminals to see if it charges.  Reverse the leads and it should
>discharge. This is where an analog meter is helpful as with a digital
>meter (unless it’s the type with a bar graph) it won’t sample fast
>enough to see the charge/discharge occur.
>
>Dan
>
>
>> On Jul 21, 2016, at 8:42 AM, Meade Dillon via Mercedes
> wrote:
>> 
>> Thanks Dan, I'll take a look at those.
>> 
>> -
>> Max
>> Charleston SC
>> 
>> On Thu, Jul 21, 2016 at 8:34 AM, Dan Penoff via Mercedes <
>> mercedes@okiebenz.com> wrote:
>> 
>>> Starting capacitor, or possibly the centrifugal switch that
>disconnects
>>> the starting capacitor.
>>> 
>>> Dan
>>> 
>>> 
>> ___
>> http://www.okiebenz.com
>> 
>> To search list archives http://www.okiebenz.com/archive/
>> 
>> To Unsubscribe or change delivery options go to:
>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
>> 
>> 
>
>
>___
>http://www.okiebenz.com
>
>To search list archives http://www.okiebenz.com/archive/
>
>To Unsubscribe or change delivery options go to:
>http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
___
http://www.okiebenz.com

To search list archives http://www.okiebenz.com/archive/

To Unsubscribe or change delivery options go to:
http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com

Re: [MBZ] OT Well pump weirdness

[Dan Penoff via Mercedes]

Typically, a failed starting capacitor or centrifugal switch will make it buzz 
or hum on starting (or attempting to start) and the motor won’t spin up.  
“Helping” it turn will get it going.

This is especially common when the motor is starting under load, such as in a 
pump.

Find the capacitor and with it disconnected put an ohmmeter across the 
terminals to see if it charges.  Reverse the leads and it should discharge. 
This is where an analog meter is helpful as with a digital meter (unless it’s 
the type with a bar graph) it won’t sample fast enough to see the 
charge/discharge occur.

Dan


> On Jul 21, 2016, at 8:42 AM, Meade Dillon via Mercedes 
>  wrote:
> 
> Thanks Dan, I'll take a look at those.
> 
> -
> Max
> Charleston SC
> 
> On Thu, Jul 21, 2016 at 8:34 AM, Dan Penoff via Mercedes <
> mercedes@okiebenz.com> wrote:
> 
>> Starting capacitor, or possibly the centrifugal switch that disconnects
>> the starting capacitor.
>> 
>> Dan
>> 
>> 
> ___
> http://www.okiebenz.com
> 
> To search list archives http://www.okiebenz.com/archive/
> 
> To Unsubscribe or change delivery options go to:
> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
> 
> 


___
http://www.okiebenz.com

To search list archives http://www.okiebenz.com/archive/

To Unsubscribe or change delivery options go to:
http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com

Re: [MBZ] OT Well pump weirdness

[Meade Dillon via Mercedes]

Thanks Dan, I'll take a look at those.

-
Max
Charleston SC

On Thu, Jul 21, 2016 at 8:34 AM, Dan Penoff via Mercedes <
mercedes@okiebenz.com> wrote:

> Starting capacitor, or possibly the centrifugal switch that disconnects
> the starting capacitor.
>
> Dan
>
>
___
http://www.okiebenz.com

To search list archives http://www.okiebenz.com/archive/

To Unsubscribe or change delivery options go to:
http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com

Re: [MBZ] OT Well pump weirdness

[Dan Penoff via Mercedes]

Starting capacitor, or possibly the centrifugal switch that disconnects the 
starting capacitor.

Dan

> On Jul 21, 2016, at 8:07 AM, Meade Dillon via Mercedes 
>  wrote:
> 
> 
> as needed during operation.

___
http://www.okiebenz.com

To search list archives http://www.okiebenz.com/archive/

To Unsubscribe or change delivery options go to:
http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com