Any help would be great to id and maintain this compressor.

by Adrian Aznarez
(Miami, Florida)

Older Compressor information plate

Older Compressor information plate

Older Compressor information plate
Compressor overview
Old Compressor
How to maintain this compressor?

Any help would be great to id and maintain this compressor.


Given to me by a good old vet friend who passed on.

It was working when it was picked up so i need to learn what oil to use on what and how to hook it up and maintain it correctly.

i have small portable units but this is the only large one which i need for sandblasting and painting.

i will fix and replace what parts i need to bring it up to as perfect condition as i can, if i only had a manual.

So whatever you can help me with i thank you in advance.

i have more pictures if needed.

the side of compressor head says curtis st louis the ac motor has wagner quality stamped on plaque 60cycles 2hp. The little blue box says furnas electric co model gu7.

i assume it acts a relay to start and stop due to tank pressure?

the gauge says oxygen should read psi but what pressure range? one step at a time.

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Sep 30, 2015
curtis
by: Doug in s.d.ca

Maybe you can say what the notes on the pix are - I can't make most of 'em out.

I think you have a PRV on there - that should give you an idea of the safe pressure for the tank, usually working pressure is anywhere from just a few pounds to double pressure.

The Furnace is the pressure switch, and if it's working should cut off at near the correct pressure.

And "compressor oil" from the local big-box almost certainly OK for this older pump.

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