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Snap On Compressor BRA7180V controls schematic

 

by James
(Tulsa, OK)

I have been trying to help someone with a Snap On BRA7180V compressor that has pressure switch and starting problems – It purchased used.

 

Snap On Compressor BRA7180V
New Snap On Compressor BRA7180V

 

The motor starter has a 24 volt coil but I can not find a transformer to step the 240 v down to 24.

Either I’m missing something or the wiring is incorrect.

I would like to get a schematic of the controls so I can determine if components are missing and if it needs rewiring. Thanks

James

__________________________

BRA7180V transformer
by: Doug in s.d.ca

I dunno what else is going on with this thing, but the transformer, if used, would be a 120V in 24V out, as in bell transformer.

You have 120 if you run a neutral into it.
(You CAN use ground instead of neutral, but you MAY not – it’s against code.)

Maybe you can post some pix with electrics detail?

 

 


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John
John
January 27, 2020 7:42 pm

Hey it’s a 240v not 24 so you need a 10/3 wire which is 2 hots and a neutral and ground

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Vern
Vern
June 27, 2019 1:47 pm

I have the Snap-on BRA7180VEM and can’t find who makes the cast iron pump. I pulled the oil sight glass off after draining and ran a magnet inside the crankcase and found metal shavings which gives me a clue about the 10 seconds of loud knocking at startup until some tank pressure is achieved. I noted that the rod moved a bit side to side when coxed by the magnet. I think it probably needs a rebuilt but can’t find the info I need on the pump to search for a rebuild kit. Any ideas who makes it and where… Read more »

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