Hi I'm new to these forums and hope to get some help I have an old baldor motor I would like to wire up its a single phase ac motor I'm trying to wire it for 115 volts it has a wiring diagram on the motor it says connect wires 1 3 8 and wires 2 J 5 which I have already done each of the wires are in there respective groups connected with wire nuts in the pictures I have them up and out of the way so you can see better so my question is where do I connect my positive and negative wires too from my power cord? and what do I do with the number 4 wire that's just hanging there? any help would be great thanks.

 

This would go better with a decent picture. My guess is 1-3-8 and 2-4-5 I have no idea where you get a J wire? Also this is an AC motor single phase I assume so there is no positive and negative. You have a L1 and L2 which is the AC line and if all of this is true L1 and L2 are Hot and Neutral and it doesn't matter which is which. You swap 5 and 8 to change rotation.

Would this be what you have?


What I posted is based on the above image.

Ron

 

Hi that was the best picture I could take with my crappy camera so here is another pic but I have labeled the numbers so you can get a better guess and yes it does have a J one of the reasons I am confused.

 

Sorry I did manage to find another picture of a motor with the same wiring diagram.

 

When I have see J used there are often two J wires and they run to a thermal switch. Keeping that in mind is this what you have?


In this case 1 - 8- 3 are connected and go to Line, 2 - 5- J are just joined and 4 goes to lineSwapping % & 8 gets rotation reversed. Does this look like what you have?

Ron

 

Yes that is exactly what I have but I'm still confused I have 1 8 3 connected to each other and 2 J 5 connected to each other and I know switching 5 and 8 change rotation of the motor but what do you mean 4 goes to line swapping? and where do I connect my hot and neutral wires too? do I connect the hot wire to group 1 8 3 and the neutral to group 2 J 5.

 

Line in is 1 & 4.
Max.

 

Well now we have the right drawing. Yes, #1, #8 and #3 are tied together and to one side of the AC line. Then #4 is tied to the other side of the AC line. Then J, #5 and #2 are simply tied together. If you wish to reverse directional rotation you simply swap #5 and #8.

Ron

 

Thanks for the help guys hooked it up and runs fine even after its been sitting for over 20 years I did have to replace the capacitors though.

 

Glad it worked out for you.

Ron

 

I'm in the same boat,I have a universal motor,115 volt motor with 3 wires,red, blue and yellow.anyoone have any idea what each wire does

 

I'm in the same boat,I have a universal motor,115 volt motor with 3 wires,red, blue and yellow.anyoone have any idea what each wire does

By Universal motor is this a brushed series wound motor as the description implies?
If so, there is normally only two conductors.
Max.

 

By Universal motor is this a brushed series wound motor as the description implies?
If so, there is normally only two conductors.
Max.

How do I tell what each wire does, when I opened it up, it looks like all three go to the windings

 

How do I tell what each wire does, when I opened it up, it looks like all three go to the windings

Can you give a make and model number of the motor? A "universal" motor is one that has brushes and can run on AC or DC, is this what you have? Or is 'universal' the brand name?

 

How do I tell what each wire does, when I opened it up, it looks like all three go to the windings

Post a pic if possible and detect as to whether the motor has brushes or a capacitor added.
Max.

 

Post a pic if possible and detect as to whether the motor has brushes or a capacitor added.
Max.

 

Can you give a make and model number of the motor? A "universal" motor is one that has brushes and can run on AC or DC, is this what you have? Or is 'universal' the brand name?

It is from universal electric company.ser 9pa 8678a,mod.de3go85k,115 v,60hz,3.6 a,1050 rpm,#120102, thermal protected.sorry,but for some reason it won't let me download a picture

 

Sorry,b but for some reason it won't let me download a picture, the info on the tag says, universal electric company.ser 9pa8678a,mod.de3go85k,115 v 3.6 a,1050 rpm,# 120102, thermal protected

 

Sounds like a 6 pole induction motor, Permanent Start Cap (PSC) motor.
Does it have a capacitor?
Universal Electric Motor co is a Canadian Co.
Can you measure resistance between all three conductor s
Max.

 

Sounds like a 6 pole induction motor, Permanent Start Cap (PSC) motor.
Does it have a capacitor?
Universal Electric Motor co is a Canadian Co.
Can you measure resistance between all three conductor s
Max.

I will have to measure it, there is no capacitor, just three wires,red, blue and yellow.