5z185A no motor tag - what is HP and RPM

5z185A Could you tell me HP and rpm also I find the model no. 3z424F on another plate. I do not know how old this unit is but it has been a good one.

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Jun 21, 2013
No motor tag
by: Anonymous

Thank you for info.

Jun 20, 2013
No tag motor
by: Buster

Take a look at this page I Googled, comes up with a 2 HP. 3450 RPM motor, good old compressors.

http://www.govliquidation.com/auction/view?auctionId=5496213#

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Compressor Pressure

by mike
(new york)

I have a speedaire compressor that can switches on when the pressure drops to 40 psi. I have recently changed the equipment the compressor works for where the minimum operating pressure is 60 psi. There is a valve on the compressor that I can set the maximum pressure that will call for a pressure release. My question is how can I change the minimum air pressure to change from 40 psi to 60 psi?

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Bill says...

Mike, if you need the cut in pressure level changed, you need to adjust the pressure switch settings. See the pressure switch page for info.

Recognize that by changing the cut in pressure to a higher setting, your compressor will cycle more often, with issues relating to duty cycle and maintenance being greater concerns.

Cheers,

Bill

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Speed Air 3Z419 a 230V or 115V

by Daniel Mathews
(Metairie, LA)

Is the Speed Air 3Z419 a 230V or 115V?
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Daniel, according to Grainger the motor should be wired for both:

Air Compressor - 2 HP
Air Compressor 2 HP 6.0 CFM @125 Maximum PSI, 115/230VAC, 20 Gallon Horzontal

Cheers,

Bill

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Manufacturing date for a model 3z323 Speedaire compressor

Hi,

Just purchased a used Speedaire model 3z323 compressor. It's in great condition and runs perfectly. My question is: is there any way to determine when the compressor was built? On the ID tag there is a 091 stamped in the lower right corner of the tag, could that be for 1991?

Thanks for any help,
Russ

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Speedaire pressure tube bursting

by David
(Renton,Wa)

Model # from Grainger 4B236B 60 gallon standing 230 volt. 11 years old. The pressure tube from the pressure switch to the check valve is bursting from the heat the discharge tube is putting out. I have replaced pump, motor, check valve and pressure switch. What could be the problem. Thank You
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David, am I correct in understanding that the heat in the line from the pump head to the tank, is transferring through the check valve, into the line from the check valve to the pressure switch unloader, and is melting that line?

It is common for the tube from the pump head to the tank to become too hot to touch.

The heat is being generated by friction in the pump, and also, I believe, between the air molecules as they are crammed into the line and down to the tank. This friction creates a lot of heat.

Since you have changed the pump, that lets out pump component failure. Ditto the motor, check valve and pressure switch.

If everything else is working fine, then I would think the failing line itself is suspect, and replace it with a copper line.

Has anything else changed? The location of the compressor or heat sources near it?

Bill

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cooling fan - Speedaire - know where Burt can find one?

need cooling fan for a Speedaire portable compressor model#3Z972B 1 the compressor is electric.fan is attached to shaft which is attached to compressor. please let me know where i can find one. the one on my compressor is plastic. Thanks Burt Irby of Irby's mobil smallengine repair of Virginia. cell 1-804-898-5886 e-mail ( irby.smallengine@yahoo.com )
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And Burt, if you are fixing compressors, as opposed to just fixing your own, make sure you post your contact info on the Repairs page, OK?

Bill

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2Z498 Head bolt torque

by Ted
(Phoenix,Az USA)

What is the correct head bolt torque for 2Z498 Compressor?
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I am happy to post this for you in the hope that someone has that specific information. I have not been able to find it.

There is a page on this site with recommended bolt torquing values if that will help.

Bill

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