I just got a WEG Brazilian brand motor on eBay. It's new but was manufactured 3 years
ago. Instruction states that if stored for two years bearings must be replaced or grease
changed or grease must be totally replaced. Also capacitors must be replaced.
If I do all of the above cost of the motor will probably triple.
Motor runs but seems to be underpowered for it's rating - NEMA 1.5HP
Any suggestions?
Thanks
Alex wrote:
> Some one suggested it might be my circuitry and wiring.
> I have original 1927 wiring in my house. Is it any way I can check if my wiring can
> handle the load? I have a multimeter.
Disclaimer: only attempt this if you are familiar with safe electrical
test procedures.
Set the meter to measure AC volts, and check the voltage at the
receptacle where the motor is plugged in: should be 115-125 V. Check
with the motor off, running, and under load (but not to the point of
stalling). If you see the voltage fall below 110 V, the circuit is
probably inadequate.
"Alex" <[email protected]> wrote in message
news:[email protected]...
> When motor is running lights getting dimmer. I guess it's a sign of
> voltage dropping. Am I right?
That would be a _bad_ sign of voltage drop, where a momentary dim on startup
might be just an annoyance. Time to review the wiring.
When motor starting my meter shows 70V momentarily(not sure if it's a true reading) then
goes blank for a second then 108V and stays there while motor is running with no load.
Time to call an electrician I guess.
Thanks,
Alex
George wrote:
> "Alex" <[email protected]> wrote in message
> news:[email protected]...
>
>>When motor is running lights getting dimmer. I guess it's a sign of
>>voltage dropping. Am I right?
>
>
> That would be a _bad_ sign of voltage drop, where a momentary dim on startup
> might be just an annoyance. Time to review the wiring.
>
>
"Jim Behning" <[email protected]> wrote in message
news:[email protected]...
>
> I stand corrected. The few motors I have messed with have what
> appeared to be starting capacitors. Once again never trust unconfirmed
> posts.
Hey, I learned the hard way. I spent five years getting an electrical
engineering degree. I didn't learn anything practical like this until the
second semester of my senior year when I had a course on motors and
electrical gadgets.
Bob
BillyBob wrote:
> "Jim Behning" <[email protected]> wrote in message
> news:[email protected]...
>
>
>>If it starts then the capacitors are doing their job. Capacitors are
>>for starting not running.
>
>
> Capacitors may also be for running - depends on the design of the motor. On
> most single phase woodshop sized tools, there is only a start capacitor.
>
> Bob
>
>
My motor:
http://catalog.wegelectric.com/produtoInformacao.asp
search for Catalog Number: 00158ES1BF56C
I thinks it's just a start capacitor.
This motor is on a belt grinder. I shouldn't be able to stall it easily accordingly to
other users. But I can.
Some one suggested it might be my circuitry and wiring.
I have original 1927 wiring in my house. Is it any way I can check if my wiring can
handle the load? I have a multimeter.
Can it be that I wired motor wrong?
Thanks,
Alex
Jim Behning wrote:
> Alex <[email protected]> wrote:
>
>
>>I just got a WEG Brazilian brand motor on eBay. It's new but was manufactured 3 years
>>ago. Instruction states that if stored for two years bearings must be replaced or grease
>>changed or grease must be totally replaced. Also capacitors must be replaced.
>>If I do all of the above cost of the motor will probably triple.
>>
>>Motor runs but seems to be underpowered for it's rating - NEMA 1.5HP
>>
>>Any suggestions?
>>
>>Thanks
>
> If it turns freely with no signs of binding that is good. I have
> equipment with grease that is 10-20 years old and they work ok,
>
> If it starts then the capacitors are doing their job. Capacitors are
> for starting not running. If it seems underpowered then it is
> underpowered or you are expecting too much. What is the application?
>
> Jim B.
Alex <[email protected]> wrote:
>BillyBob wrote:
>> "Jim Behning" <[email protected]> wrote in message
>> news:[email protected]...
>>
>>
>>>If it starts then the capacitors are doing their job. Capacitors are
>>>for starting not running.
>>
>>
>> Capacitors may also be for running - depends on the design of the motor. On
>> most single phase woodshop sized tools, there is only a start capacitor.
>>
>> Bob
>>
>>
>
>My motor:
>http://catalog.wegelectric.com/produtoInformacao.asp
>search for Catalog Number: 00158ES1BF56C
>
>I thinks it's just a start capacitor.
I stand corrected. The few motors I have messed with have what
appeared to be starting capacitors. Once again never trust unconfirmed
posts.
Jim B.
Alex <[email protected]> wrote:
>I just got a WEG Brazilian brand motor on eBay. It's new but was manufactured 3 years
>ago. Instruction states that if stored for two years bearings must be replaced or grease
>changed or grease must be totally replaced. Also capacitors must be replaced.
>If I do all of the above cost of the motor will probably triple.
>
>Motor runs but seems to be underpowered for it's rating - NEMA 1.5HP
>
>Any suggestions?
>
>Thanks
If it turns freely with no signs of binding that is good. I have
equipment with grease that is 10-20 years old and they work ok,
If it starts then the capacitors are doing their job. Capacitors are
for starting not running. If it seems underpowered then it is
underpowered or you are expecting too much. What is the application?
Jim B.
When motor is running lights getting dimmer. I guess it's a sign of voltage dropping. Am
I right?
[email protected] wrote:
> Alex wrote:
>
>>Some one suggested it might be my circuitry and wiring.
>>I have original 1927 wiring in my house. Is it any way I can check if my wiring can
>>handle the load? I have a multimeter.
>
>
> Disclaimer: only attempt this if you are familiar with safe electrical
> test procedures.
>
> Set the meter to measure AC volts, and check the voltage at the
> receptacle where the motor is plugged in: should be 115-125 V. Check
> with the motor off, running, and under load (but not to the point of
> stalling). If you see the voltage fall below 110 V, the circuit is
> probably inadequate.
>
If this is a 120/240 motor be sure you are wired to run at 120 volt.
Usually the start circuit has a centrifugal switch to take the start
capacitor out of the circuit, be sure it is operating.
Mike M
On Sun, 04 Sep 2005 17:19:10 GMT, Alex <[email protected]> wrote:
>This motor is on a belt grinder. I shouldn't be able to stall it easily accordingly to
>other users. But I can.
>Some one suggested it might be my circuitry and wiring.
>I have original 1927 wiring in my house. Is it any way I can check if my wiring can
>handle the load? I have a multimeter.
>
>Can it be that I wired motor wrong?
>
>Thanks,
>Alex
>
>
>Jim Behning wrote:
>> Alex <[email protected]> wrote:
>>
>>
>>>I just got a WEG Brazilian brand motor on eBay. It's new but was manufactured 3 years
>>>ago. Instruction states that if stored for two years bearings must be replaced or grease
>>>changed or grease must be totally replaced. Also capacitors must be replaced.
>>>If I do all of the above cost of the motor will probably triple.
>>>
>>>Motor runs but seems to be underpowered for it's rating - NEMA 1.5HP
>>>
>>>Any suggestions?
>>>
>>>Thanks
>>
>> If it turns freely with no signs of binding that is good. I have
>> equipment with grease that is 10-20 years old and they work ok,
>>
>> If it starts then the capacitors are doing their job. Capacitors are
>> for starting not running. If it seems underpowered then it is
>> underpowered or you are expecting too much. What is the application?
>>
>> Jim B.
"Jim Behning" <[email protected]> wrote in message
news:[email protected]...
> If it starts then the capacitors are doing their job. Capacitors are
> for starting not running.
Capacitors may also be for running - depends on the design of the motor. On
most single phase woodshop sized tools, there is only a start capacitor.
Bob