I got a free air compressor from my uncle.

[rmsawyer73]

Hi I got this new air compressor from my uncle and I have no idea what it needs to make it run. When he gave it to me he said he was pretty sure the electric motor wasn't working anymore. Can I buy a new 110v one so it would be easier to hook up in my garage? I only need light duty stuff I'm not running a commercial shop here just some hobby car stuff and a small sand blasting cabinet. Also the head makes compression and you can feel/hear the air coming out when you spin it by hand and the pulley is 15" wide

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[The Cobbler]

short answer: no, you wont replace that 5 hp motor with a 120volt motor to make that compressor run

 

[confederatemule]

Before I'd buy a motor I'd have this one checked to see what the problem is. It may be somethin very simple and inexpensive. Five horse motors are expensive.

 

[redmondjp]

You may want to have a motor shop check that motor out - it could be something as simple as a bad centrifugal switch inside or a bad motor capacitor. That motor is going to cost around $300 - 350 to replace, and before you do that, I'd want to make sure that the pump is OK first.

 

[FTG-05]

Doing some quick research, the smallest sand blasting cabinet that HF sells requires 9.5 to 10 cfm at 100 psi. That would require about a 2.6 hp motor (or 3 hp to round up at 3.8 cfm/hp).

You can get exactly one 3 hp electric motor from Surplus Center that runs off of 120 VAC; it requires 33.6 amps to run; hence almost certainly requiring you run a new circuit anyway. And this motor costs $845.

A standard 5 hp 230 VAC motor (also from SC) costs $220. Certainly you can run a 220 VAC circuit for less than $550, yes?

As stated, make sure to check this motor out first, it might be something simple. I would never downgrade a compressor just because of a (fairly) simple circuit.

 

[6PTsocket]

You may want to have a motor shop check that motor out - it could be something as simple as a bad centrifugal switch inside or a bad motor capacitor. That motor is going to cost around $300 - 350 to replace, and before you do that, I'd want to make sure that the pump is OK first.

And the tank.

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[Lassen Forge]

1ø 240? Common as dirt. Worst case scenario you'll have to have the motor rebuilt, cheaper than replacing it. Take it to a motor shop and have them go thru it. That's what they do, and it's cheaper than a good, new motor.

Plus, to put a 120 motor on that you'd have to run a new 60 amp (!!!) 120 circuit (IIRC the formula is 10 amps per HP + 20% safety factor) and heavy as hell wire, and enjoy all your lights dimming every time it kicked on, so you'd be WAY better off running a 240 circuit and doing it right...

 

[rmsawyer73]

I will definitely keep it 240 then. Im going to do something like this

. The compressor will be down in the basement right by the panel so it should work out right? Just wire up a plug to the pressure switch and hopefully that still works. I'm going to sand and paint the tank any recommendations of good paint?

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