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Motor wiring

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petro1head14/09/2019 08:35:17
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606 forum posts
111 photos

Hello

Got a replacement motor for my clarke saw. However this one the wires are not colour coded and just wondering (As its Saturday) if you can tell me if I get Live and Neutral the wrong way round will it blow up of maybe just spin the wrong way.

The motor is 240v with a large capacitor on the side

Les Jones 114/09/2019 08:43:44
2092 forum posts
144 photos

Just swapping over live and neutral in the motor should make no difference BUT there are probably more than two terminals (Plus earth.) in the connection box on the motor. IT DOES MATTER WHICH TWO TERMINALS THAT THEY ARE CONNECTED TO. Post a picture of the connection box and any information that may be inside the lid of the connection box if you are not sure which two terminals to connect to.

Les.

Grenville Hunt14/09/2019 08:47:21
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7 forum posts

In a word NO, just make sure you identify the earth wire and connect accordingly.

petro1head14/09/2019 09:13:42
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606 forum posts
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Motor.jpg

Les Jones 114/09/2019 10:52:58
2092 forum posts
144 photos

It looks like that only 2 connections are used on the terminal strip so live and neutral will connect to them. It looks like there is no way to reverse it. If I was connecting it up I would first remove the two screws that hold the terminal strip to the motor to see if there are any wires connected to the underside of the terminal strip.

Les.

petro1head14/09/2019 10:56:33
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606 forum posts
111 photos
Posted by Les Jones 1 on 14/09/2019 10:52:58:

It looks like that only 2 connections are used on the terminal strip so live and neutral will connect to them. It looks like there is no way to reverse it. If I was connecting it up I would first remove the two screws that hold the terminal strip to the motor to see if there are any wires connected to the underside of the terminal strip.

Les.

There are none underneath

Georgineer14/09/2019 11:02:31
259 forum posts
14 photos

If you reverse the motor on a saw, will it cut things back together again?

George

petro1head14/09/2019 16:33:49
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606 forum posts
111 photos
Posted by Les Jones 1 on 14/09/2019 10:52:58:

It looks like that only 2 connections are used on the terminal strip so live and neutral will connect to them. It looks like there is no way to reverse it.

Les.

No way to reverse it, confused?

Which wire would you connect live to and which to connect neutral to?

 

So to clarify I am ok to connect either way (Live and Neutral) and check which direction the motor works?

Edited By petro1head on 14/09/2019 17:00:06

petro1head14/09/2019 17:30:15
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606 forum posts
111 photos

Sorted thanks

3404614/09/2019 17:35:30
735 forum posts
8 photos

Hopefully it is running the right way, but I thought it was possible to change the running direction of a motor by reversing the connections of either the start winding or the run winding.

Not an expert on this subject so I may well be wrong.

Bill

Frances IoM14/09/2019 17:47:50
639 forum posts
24 photos
it may be useful to look at the wiring to/from the capacitor as both ends of the start winding might be brought out there tho with a motor designed for a saw there is no need to allow choice in motor direction

Edited By Frances IoM on 14/09/2019 17:49:27

john fletcher 114/09/2019 17:55:37
527 forum posts

It's not easy to reverse some of these motors. As you say you need to reverse either the start or run winding, just one NOT both. I have had a few similar motors in pieces and one thing to note is the centrifugal switch is at the drive end. The capacitor is the clue as it is in series with the start winding so one end of the start winding is available but the other end takes a bit of finding if at all possible. I hope your motor is rotating in the correct direction and doesn't need any alterations. John

petro1head14/09/2019 18:34:25
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606 forum posts
111 photos

No matter which way you connect the Live and Neutral it runs in the same direction

Daniel15/09/2019 18:42:40
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249 forum posts
39 photos
Posted by Georgineer on 14/09/2019 11:02:31:

If you reverse the motor on a saw, will it cut things back together again?

George

laughlaughyes

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