Wadkin feed motor control switch

[Antho]

Hi all,

Does anybody know where I could get a wadkin feed motor control switch for a BAO12 thicknesser circa 1967 or even how I could use a modern alternative that would do the same job as the original part…. Fast slow stop

Many thanks

 

[Vann]

Hi all,

Does anybody know where I could get a wadkin feed motor control switch for a BAO12 thicknesser circa 1967 or even how I could use a modern alternative that would do the same job as the original part…. Fast slow stop

Many thanks

I'm not familiar with the BAOS (too recent for my taste in Wadkin ). Do you have a picture of the original switch?

Cheers, Vann.

 

[ChaiLatte]

Manual with wiring diagram seems to be here:

https://www.wadkin.com/wadkin-bao-12-inch-thicknesser
If that is the correct one (Fig. 2), it is a standard 'three phase changeover switch' (search using the words in quotation marks).

This one is just an example:

https://uk.rs-online.com/web/p/cam-switches/0758614
It has the incoming three phases connected to it. In the off position, they are connected to nothing else. In one of the on positions, the incoming phases connect to the three phases of the low speed windings. In the other on position, the incoming phases connect to the high speed motor windings.

 

[Antho]

I'm not familiar with the BAOS (too recent for my taste in Wadkin ). Do you have a picture of the original switch?

Cheers, Vann.

 

[Antho]

Manual with wiring diagram seems to be here:

https://www.wadkin.com/wadkin-bao-12-inch-thicknesser
If that is the correct one (Fig. 2), it is a standard 'three phase changeover switch' (search using the words in quotation marks).

This one is just an example:

https://uk.rs-online.com/web/p/cam-switches/0758614
It has the incoming three phases connected to it. In the off position, they are connected to nothing else. In one of the on positions, the incoming phases connect to the three phases of the low speed windings. In the other on position, the incoming phases connect to the high speed motor windings.

Exactly so does that mean I could retro fit any modern switch as a replacement? How would the two speeds be affected by a different switch?

Many thanks

 

[Antho]

I hope this helps.

Many thanks Vann

Ant

 

[ChaiLatte]

Exactly so does that mean I could retro fit any modern switch as a replacement? How would the two speeds be affected by a different switch?

You can fit any switch from any era that has the same switching characteristics as the original.

You need to study the wiring diagram and understand how the motor is driven/powered in each of its two speeds.

The motor has six wires coming from it. Three are for low speed, three are for high speed. Send the juice to the three low speed ones if you want it to spin slowly. Send the juice to the the three high speed ones if you want it to spin fast. Send the juice to neither set of three if you do not want it to spin at all.

Find a switch that you can connect the three incoming phases to. Make sure in the off position it does not send those phases anywhere. Make sure that in one position it sends the three phases 'to the left' and in the other position it sends them 'to the right'.

 

[Antho]

Ok gotcha many many thanks and well thanks explained

 

[Spectric]

Getting a switch to do the job is not a problem unless you wish to keep it looking the same.

https://proteusswitchgear.com/produ...-2-position-and-off-manual-changeover-switch/
https://voltaconsolar.com/catalog/p...1574/s/20a-changeover-switch-with-centre-off/

 

[Antho]

Getting a switch to do the job is not a problem unless you wish to keep it looking the same.

https://proteusswitchgear.com/produ...-2-position-and-off-manual-changeover-switch/
https://voltaconsolar.com/catalog/p...1574/s/20a-changeover-switch-with-centre-off/

Many thanks