how to find a manual for Devilbiss #RA5J80V1D

by Van Meter
(Washington, NH)

I am purchasing a used Devilbiss RA5J80V1D that's only been used 4-5 times to mostly inflate tires and blow the dust out of antique autos.


It is part of an Estate sale and the original owner has died.

I am a sandblaster and use the system to etch and carve glass and this compressor will run my pressure pot.

My requirements are 13 cfm and this compressure is a 5hp/80gal/15.5scfm, so it will handle my intermittent on/off sandblasting.

This particular compressor does not have a switch to turn it on.

First time I've seen that in a compressor this size, and I don't have a manual.

How can I get one and can you speak about installing a pressure switch on this unit?

Thanks, Van Meter

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Mar 21, 2014
pressure switch
by: Doug in s.d.ca

According to the parts diagram (toolpartsdirect.com has one) this compressor has a pressure switch/unloader, item 12.

the on-off switch is an option.

So, what you do is wire your mains to a small cutoff switch, and then into the compressor from there. A cutoff switch or disconnect near any 220v circuit load is required by code, anyway.

If you don't find the pressure switch on this machine, maybe you could post some pictures of the thing. Bill may be able to add them, or you might need to start a new page.

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I have a 1978 upright compressor that I can't tell what spec's it has

by Rod
(Sarnia, Ontario, Canada)

1978 Upright Devilbiss serial number 5450102

1978 Upright Devilbiss serial number 5450102

1978 Upright Devilbiss serial number 5450102
1978 Upright Devilbiss serial number 5450102
1978 Upright Devilbiss serial number 5450102

1978 Upright Devilbiss serial number 5450102. It has a 2HP motor on it. 200psi at 650 degrees F.
I believe the tank is 80gal.
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I'm sorry Rod, but I don't understand what your question is?

You say you don't have the specs, but you know the HP of the motor, and from that, you can figure out the approximate flow rate.

If it's running you know the voltage of the motor and you should be able to tell the cut in and cut out pressure settings.

What else are you looking for?

Bill

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Feb 28, 2014
Calculating cfm
by: Anonymous

How do you figure out the flow rate from the hp in?
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You read the pages on this website about flow rate and about sizing a compressor.

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devilbiss air compressor only pumps 35 lbs

by lindsay williams
(oneonta, al, united states)

why will my devil bliss air compressor 60 gallon twin cylinder pistan want pump it only pumps 35 lbs

it want pump know higher than35 lbs
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A lot of reasons why this could happen, Lindsay.

Maybe you could check the troubleshooting section, and follow the link to the page about why air compressors run and run but don't build pressure past a certain point?

All info is there.

Cheers,

Bill

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picture on how to put the pressure switch back together on devilbiss pro air II, model #F312-3

by Gregg
(Kenduskeag, Me. USA)

I have a devilbiss pro air II, model #F312-3.

Came to me with the pressure switch apart. Does anyone have a picture or directions on how to put this back together?

Please help...
Thanks
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Greg, I could find no information on our devilbiss pro air II model #F312-3 on line, suggesting this is quite an older model.

The absence of photos with your question makes it difficult to clearly help, though I suggest that many makes of compressor pressure switches are standard, and if you can identify the maker of the switch that's the place to look for rebuild assistance.

For me, given that I can get pressures switches with unloader valves on line for $20-$30 new, I'd not waste my time trying to rebuild an older one, I'd simply replace it with new.

Bill

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