2 phase electrical motor not running, help please

[czechsonofagun]

Well it runs now and I have no idea why
Took it all apart, the same thing. Replaced capacitors - same thing. Messed with running capacitors wiring - apparently some time in the beggining I connected them wrong way, they need to be in series.

Soo - there was connection problem or such, I fixed it and got stumped by my own stupidity when I changed capacitors wiring.

 

[hr3]

Good job at least you kept trying,,,:thumbsup:

 

[BobRip]

What is the breaker rating? What is the running current on the motor? It should be on the name plate. The breaker should be at least 1.25 times the running current. If the centrifugal switch does not open after startup this could trip the breaker. You might have some mechanical binding, perhaps a bearing going bad. Nothing that you have said indicated this though.

What you have is single phase. There is such a thing as 2 phase and we briefly studied it in school, but I have never seen it in the seven countries I have visited. It would be nice to have three phase in homes. The equipment is much more reliable, starts better, and last longer. No starting switches or capacitators to fail.

 

[czechsonofagun]

I am resurfacing this to post information that could save somebody some trouble.

The motor, which I now know is 1 phase 240V , stopped running again. Actually it would not start, just buzz and flip the breaker. I took it all apart again, measured resistances and what not with nothing - again.

So I took a vacuum and started cleaning saw dust out, since it can only help. On the end of the shaft there is some kind of a centrifugal switch for start and run circuit switching. I wiggled it back and forth, plugged the motor in and it run just fine.

What was happening is, the switch would due to the saw dust and likely humidity in Virginia stay in the run position when I turned it off, and the run circuit connection would not be strong enough to start the motor from cold start.

Very happy this mystery is solved, hopefully it will save some head scratching for someone.

 

[BobRip]

I am resurfacing this to post information that could save somebody some trouble.

The motor, which I now know is 1 phase 240V , stopped running again. Actually it would not start, just buzz and flip the breaker. I took it all apart again, measured resistances and what not with nothing - again.

So I took a vacuum and started cleaning saw dust out, since it can only help. On the end of the shaft there is some kind of a centrifugal switch for start and run circuit switching. I wiggled it back and forth, plugged the motor in and it run just fine.

What was happening is, the switch would due to the saw dust and likely humidity in Virginia stay in the run position when I turned it off, and the run circuit connection would not be strong enough to start the motor from cold start.

Very happy this mystery is solved, hopefully it will save some head scratching for someone.

I have seen that.

 

[kenmac]

I am resurfacing this to post information that could save somebody some trouble.

The motor, which I now know is 1 phase 240V , stopped running again. Actually it would not start, just buzz and flip the breaker. I took it all apart again, measured resistances and what not with nothing - again.

So I took a vacuum and started cleaning saw dust out, since it can only help. On the end of the shaft there is some kind of a centrifugal switch for start and run circuit switching. I wiggled it back and forth, plugged the motor in and it run just fine.

What was happening is, the switch would due to the saw dust and likely humidity in Virginia stay in the run position when I turned it off, and the run circuit connection would not be strong enough to start the motor from cold start.

Very happy this mystery is solved, hopefully it will save some head scratching for someone.

I haven't seen 1 of these in quite some time. If it's what I'm thinking ,, you are referring to what we ( down here ) call a sail /centrifugal switch. It only makes up when the motor is running

 

[czechsonofagun]

Yes, it looked like this - give or take:

CSW2 20mm

 

[kenmac]

I have seen this switch on motors,but it's been a while. It must be an old motor

 

[buickanddeere]

Domestic 120/240 power is single phase no matter if the connection is line to neutral or line to line.
6.5HP will be the "peak" rating . Continuous will be approx 1-1/2 to 2 HP.What is the nameplate current?
As previously stated a stuck closed starter switch was the likely culprit.