How to identify a compressor

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high_order1

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Location
near Knoxville TN
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Managed to luck into a compressor.

Pretty stoked about it, person said it had been stored for years inside.

What I would like is the operating, maintenance and an illustrated parts breakdown, because I am weird like that.

It will be a few days before I can unassemble it.

It is orange, says Innerspace Research on it, but if there's a model number I can't find it.

Gasoline powered replacement motor

Oil sump compressor, appears to be three stages

Cooling fan has a bauer part number on it, but that doesn't necessarily mean anything

crankcase of the compressor appears to read KB 12139 000 then 50/5, but it has grease or oil and paint sort of obscuring it.

If this isn't the best place to ask, is there a compressor forum?

Side thought - is there a good book or article on the proper care and feeding of a small dive tank refill station?
 
It's likely a Bauer Purus based on those numbers.
It needs to be noted that you MUST replace the filter tower and moisture separators as they only has a 15yr lifespan and it's definitely older than that.

If you go here and search purus you'll find the zip file for where all of the manuals for that unit will be. The rest of this website has some great resources for compressors.
 
THANK you for the quick response and the link!

Do you mean the actual tower, or the filter components inside the tower? I assumed the insides were done.

Been doing more reading. I understand the towers have a finite lifetime.
 
THANK you for the quick response and the link!

Do you mean the actual tower, or the filter components inside the tower? I assumed the insides were done.

Been doing more reading. I understand the towers have a finite lifetime.
definitely the tower itself. Unfortunately they can't be hydro'd and if you don't know the history of tower you need to replace it as they can lead a pretty brutal life. We had one explode at a dive shop a couple summers ago and almost killed the shop owner so it's a very real concern
 
I've been researching here more. I see I need a large tower for saturation issues (I am in the south) anyway, so I was looking at that.

Bauer says the actual model number is engraved somewhere, but it looks like the pump was painted black, so I will dig some more for that. The links so far haven't really given me anything that looks exactly like what I purchased.

In another thread, I found a good way to inspect the heads, but I'd like to get part numbers to replace some of the seals, etc.

In that same thread, they discuss changing oils, and say there is a specific procedure, but not what the procedure is, so that's something else I will research, apparently synthetic is preferred to mineral.

And, I am looking into how to further separate the pump intake from the gas engine exhaust.

20241008_184342.jpg

I figure I probably have 3-4 months before I safely fill the first tank, but I'm still stoked that I don't have to invest in a lot of tanks now, I can take this to the dive site and not have to come back out!

20241008_184414.jpg

couple of pics I was able to get today

20241008_184631.jpg
 
person said it had been stored for years inside.

“Stored inside” meaning inside the shaded area underneath a deciduous tree by the looks of the accumulated leaves 🤪.
 
Lol
That's where we stopped for pics before I bagged it up. I looked for bird poop. Perhaps I should have looked for starfishes
 
So
Guess Innerspace folded after the guy died?

This:
BLOCK-NUMBER.jpg

suggested there is an engraved or stamped ID on the block. But I looked around the oil fill after scrubbing some, and it's not there.

Any other ancient Bauer experts have any thoughts?
 
In that same thread, they discuss changing oils, and say there is a specific procedure, but not what the procedure is, so that's something else I will research, apparently synthetic is preferred to mineral.
For you, completely disassemble, remove all carbon deposits with solvent and tube brushes, reassemble, refill with synthetic.

For units less "aged" than this you can potentially get away with multiple synthetic flushes, each of which will loosen and dislodge all the (in theory small/minor) carbon deposits. Not in this case you'll just destroy rods and valves with floating carbon chunks
 
https://www.shearwater.com/products/teric/

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