Sanborn Air Compressor - sitting in a basement for 15 years

by Bill
(port huron, mi)

It was new and only used a couple times, now it has been sitting in a basement for 15 years not hooked up and want to start using it now that I got time, is a single stage 60 gal. vertical, 5.0hp, 220volt! So what procedure do I have to go through to start it back up?

Thanks

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Bill says...

Give it a cleaning.

If the tank wasn't drained when it was stored, you may have a rust issue.

Give the PRV a pull and reset it to make sure it works.

Change the oil.

Power it up and monitor as it builds pressure.

That's what I would do.

Cheers,

Bill

Comments for Sanborn Air Compressor - sitting in a basement for 15 years

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Nov 15, 2011
Thank You
by: Bill

Did just what you said and fired it up, It ran to 120 psi and shut off, I drained the water in it and there was rust but only a little! Second time I filled it and drained it, there was only a little then a white water! Tested the blow off and it drained the air to about 50 psi then reset by itself!
Thanks for the response,
Bill

P.S. Oh the only cleaning was dust, all the tags and stickers was still on it, looks like new, it was made in 1987!
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Good stuff!

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makes 20 psi then starts to smoke

by Rex
(Wasilla, Alaska)

model/make

model/make

model/make
Manufacture TAG

Sanborn air compressor make 20 psi then stops motor trys to keep working but starts to smoke

I have a Sanborn air compressor Model B109B300-22. it reaches 20 psi and will not make more pressure. electric motor continues to try to pump but cannot because belt will not turn.

I have removed belt and electric motor whizzes along happily. Put belt back on and pump stops motor at 20 psi. I do not know much about compressors and wanted to know what you thought might be problem?

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Bill says....

Rex, try taking the line from the top of the pump to the tank off at one end. Run the compressor again. Any change?

It sounds as though the back pressure created by 20 PSI in the tank may be interfering with the check valve, and that's blocking ingress of more air to the tank, and that's overloading the motor.

Too, just because the motor runs without load, doesn't mean that the motor is not failing. If the pump is fine, and the check valve is OK, then it may be that the motor is worn to the point that it cannot overcome the 20 PSI back pressure.

Keep us posted, and thanks for the photos.

Bill

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sanborn - Kobalt - oil out of intake

by gary smith
(st joseph mo)

brand new kobalt 3.7 hp model221565 single stage compressor oil sprays out of breather after it runs for awhile

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Bill says...

Gary, by breather, do you mean the air intake through the filter at the top of the pump?

That's not good, if so. It were my compressor, I'd take it back and ask for a new one.

Cheers,

Bill

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