wiring an electric motor

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  #1  
Old 08-04-06, 07:59 PM
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wiring an electric motor

I have a small lathe I need to wire a 1/2 hp electric motor to. I would like to know if anyone knows how to wire the motor to a forward and reverse switch and to the power supply
Ray
 
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Old 08-04-06, 08:02 PM
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is it a reversible motor?

how many leads and what are they numbered.

most motors have a wiring diagram on them or in the peckerhead to show you how they need to be weired for different hook ups. take a look.
 
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Old 08-04-06, 08:26 PM
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What did you call me?!
 
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Old 08-04-06, 08:47 PM
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Originally Posted by rayespo321
power supply
Is the motor AC or DC ?
120 volts or 90 volts, 24 volts. ?
 
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Old 08-04-06, 09:05 PM
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Originally Posted by Speedy Petey
What did you call me?!
Huh?? Whatever it was, there was no malice or derogation intended.

I have referred to you as petey in several postings. Other than that, you'll have to let me know what you are referring to.

unless.......you are you reffering to the comment in the previous post here?

as in peckerhead. If you are not kidding, that is a generally accepted term for the termination enclosure on a motor. (at least to most I have dealt with.)
 
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Old 08-04-06, 09:21 PM
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I was kidding. And I assumed that's what a peckerhead was.
I've never heard that term before and laughed out load when I read that.
 
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Old 08-04-06, 09:32 PM
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Originally Posted by Speedy Petey
I was kidding. And I assumed that's what a peckerhead was.
I've never heard that term before and laughed out load when I read that.
Good. I was trying to think of where I may have insulted you and could not.

I really do not know where the term came from but it is a very common term in the circles I travel. It still is a bit embarrassing when in mixed company but that is sometimes what it takes to communicate. When in Rome, you speak Italian.
 
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Old 08-05-06, 11:08 AM
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motor wiring

Originally Posted by GWIZ
Is the motor AC or DC ?
120 volts or 90 volts, 24 volts. ?
The motor is AC 1/2hp single phase 115/230v I need to wire for 115v. 4 pole connections pole 4 has a black and white wire on it from the motor pole 1 has a red and orange wire on it from the motor. pole 2 and 3 have nothing on them. The switch from the lathe has 2 lines coming from it. each has a black, white and green wire. I assume one line for forward one for reverse. It turns left(reverse) top(off) right(forward). The power cord line I will be using has a black , white and green wire
 
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Old 08-05-06, 11:15 AM
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Motor wiring

Originally Posted by nap
is it a reversible motor?

how many leads and what are they numbered.

most motors have a wiring diagram on them or in the peckerhead to show you how they need to be weired for different hook ups. take a look.
I bought the motor at Harbor freight Tools, made by Chicago Electric. I called the technical dept but the guy could'nt even tell me how to wire it to the power suppy. It's a 1/2 hp single phase 115/230v I need to wire for 115v. 4 pole connections, pole 4 has a black and white wire on it from the motor, pole 1 has a red and orange wire on it from the motor. pole 2 and 3 have nothing on them. The switch from the lathe has 2 lines coming from it each contain a black, white and green wire. I assume one line for forward and one for reverse. It turns left(reverse) top(off) right(forward). The power cord line I will be using has a black, white and green wire
 
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Old 08-05-06, 01:47 PM
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Is this the motor?


harbor freight

If not, go to harbor freight website:

harbor freight motors

and find yours. Post the model # or link to it.
 
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Old 08-05-06, 02:31 PM
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nap beat me to the next question. I will add to it.

Can you list ALL the model and part numbers from the motor and lathe
And HF catalog numbers.
Name of lathe.
Does the lathe have a reverse switch ?
Are you replacing an old motor ?
 
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Old 08-06-06, 10:54 AM
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motor wiring

The old motor went bad so I am replacing it. It was a Dayton 1/3 hp fan motor someone rigged up to the lathe before I got it. The Chicago Electric motor I bought is Model 36549. The lathe is a South Bend and It does have a forward and reverse switch. It's a Cutler-Hammer switch box
 
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Old 08-06-06, 11:41 AM
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I cant find a chicago electric web site. the harbor freight web site has a manual, but the electric dwg is about as bunk as it gets. And I do control work for a living.
 
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Old 08-06-06, 11:55 AM
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Do you have colored leads as well as connection pins in the pecker head (wiring box) (cat head) for this motor?
 
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Old 08-06-06, 01:57 PM
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from Ray

The Model # of the Chicago Electric 1/2hp motor I bought is: 36549. The lathe I have is a South Bend and the switch box on the lathe is a forward and reverse switch, a Cutler-Hammer switch box.
the motor literature:

http://www.harborfreight.com/manuals...6999/36549.PDF

--------------------

Ray, how many contacts does the switch have and can you diagram the interconnections when in the "rev" "off" "for" positions for us(or is it only a 2 position switch? plus an on off switch). That is critical to the correct connection.

Once I have this I can give you the correct connections.

A model number may allow those here to find the info (if available).
 
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Old 08-06-06, 03:21 PM
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motor wiring

I can scan a drawing I made of the switch leads, motor connections etc, but I dont know how to get it into this forum, anyone know?
The switch itself is already wired internally, the leads coming out of the switch box are like a regular power cords. There are 2 separate cords coming out the back of the box, each contain a black, white and green wire. The front of the box has a switch, it turns left for reverse, top (0) for off and to the right for forward.
I could'nt find a website for Chicago Electric either, The drawings they give in the manual only show how to wire the pecker head for clockwise or counterclockwise, separately. It doesnt show how to wire to a switch either. I called the tech dept and they didnt have a clue.
There are 4 pin connections in the perker head. Pin 2 and 3 have nothing attacted. pin 4 has a black and white wire attached coming from inside the motor. pin 1 has a red and orange wire attacted to it also coming from inside the motor.
 
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Old 08-06-06, 03:40 PM
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You can use photobucket or other image hosting sites and give a link.


Do the pins connect to anything (I would guess on the backside of them) or are they simply terminal posts to allow the wiring to attach to?
I'm not talking avbout the read,ornage, white, black wires coming from inside the motor either. Is there any (presumably permanent) connections that lead into the motor as well connected to any of those pins?

I have to assume there is because in the different configurations of wiring, there are times where the external power (specifically the neutral) is connected to a pin that has none of the internal wires connected to it. But check it out to be sure

Toss in the model number of the reversing switch if you have it as well..
 
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Old 08-06-06, 06:02 PM
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Read this thread for help on wiring a drum type reversing switch.

http://forum.doityourself.com/showthread.php?t=271914

I myself have wired one on a lathe.


For that motor, you need to switch power to the motor, and switch the red and black wires to change direction. P4/White are one side of the run windings, P1/Orange are the other.
Without knowing what is going on in the control box, we are at an impasse.
 

Last edited by classicsat; 08-06-06 at 07:10 PM.
  #19  
Old 08-07-06, 08:06 PM
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motor wiring drawing

I drew a diagram of the motor and switch hope this helps. at this link:
http://i84.photobucket.com/albums/k8...ingdrawing.jpg
 

Last edited by rayespo321; 08-08-06 at 09:32 AM.
  #20  
Old 08-08-06, 09:39 AM
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motor wiring drawing hopefully alittle bigger

http://i84.photobucket.com/albums/k8...ingdrawing.jpg
 
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Old 08-08-06, 12:07 PM
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It is no bigger.

Plus showing the cables just leaving the reversing switch is no good. We need to know what is going on inside. Likely though, you will need to rewire the reverser, as there is no means on 4 wires to control power and direction (the greens are to be ground, so if someone used them for a power lead, they did wrong).
 
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