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Bryan
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Re: Tornado 3000-4-3

Fri Dec 20, 2019 10:03 pm

Like Eben I easily get obsessed with things like this....That's why I have a 59 Sears/Elgin mahogany plywood boat with a 1960 Evinrude Golden Jubilee motor on it.....If people would stop demanding that i obsess over their new Argonaut Kraken's I'd jump down the rabbit hole again with this type of project... Very interesting read and I really appreciate and admire the attention to finish detail he's doing.
Doing it right should include some common sense, not just blindly following specs and instructions. .Gary D, AWAP on SB

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SurfLung
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Re: Tornado 3000-4-3

Mon Dec 23, 2019 12:15 pm

Bryan wrote:
Fri Dec 20, 2019 10:03 pm
Like Eben I easily get obsessed with things like this....That's why I have a 59 Sears/Elgin mahogany plywood boat with a 1960 Evinrude Golden Jubilee motor on it.....If people would stop demanding that i obsess over their new Argonaut Kraken's I'd jump down the rabbit hole again with this type of project... Very interesting read and I really appreciate and admire the attention to finish detail he's doing.
-Thanks Bryan. The Rabbit Hole is certainly a good way to describe it. But it is a fun obsession! :)

The Toggle Switch (pressure switch simulator) Idea Worked!

- Tbone suggested I use a toggle switch to simulate the pressure switch... So I can determine the correct wiring. With the toggle switch "ON" the "Normally Open" green START switch turns on the compressor. With the toggle switch "OFF" the START switch can't turn on the compressor because the circuit is still open due to the toggle switch being in the OFF or Open position. I connected the toggle switch in place of the A to 96 wire just as Tbone and AntiqueDiver suggested. Here's the modified drawing Bill sent me.
Image

In the red lettering: Pressure switches have three wires coming off of them. Use a specific two wires to have the switch be Normally Open (NO) and use the other combination of two to have it be Normally Closed (NC). For this set up to work, the Normally Closed NC configuration is needed. This Tornado 3000 switch has the 3rd wire clipped short to dedicate it to NC status.
SurfLung
The Freedom and Simplicity of Vintage Equipment and
Vintage Diving Technique are Why I Got Back Into Diving.

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SurfLung
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Re: Tornado 3000-4-3

Mon Dec 30, 2019 11:06 am

Filters and Pressure Switch
- As mentioned before, This Tornado Kidde has an automatic moisture drain. When the compressor is turned off, an "oil safety" opens and allows the liquid in the moisture condenser to drain back out the way it went in. I'm hoping to be able to use this system so I took it apart for inspection.
Image
- I found this inside had what looks like aquarium rocks about 2 inches deep and open air above that. I got the rocks out and cleaned it up with Dawn detergent. And, it looks clean and no corrosion on the inside. But the bottom elbow was partially clogged. I managed to unclog it but am wondering how likely it is to re-clog. The rocks are in there for condensation surface area I assume. I think this is usueable but I don't want to be taking it apart all the time to unclog that bottom elbow. I wonder how long they'd been running this thing with the clog?
- The filter is another story. The ends are held in by a steel ring in a groove.
Image
I had to tap the top inward with a wood mallet in order to get at the steel ring. Once I got the top off, I found the tube nearly full of carbon but with about 1/3 of the bottom filled with moisture absorbent. I vacuumed out all of the filter media and found it completely corroded.
Image
- So, the moisture condenser apparently didn't remove enough moisture. And the filter media didn't absorb enough moisture. OR, the previous users didn't bother to service this thing very often. Obviously, there are some very good reasons why they don't do things like this anymore. For now, I've decided I'll set this up to use the filter array from my RIX compressor.
- The next interesting thing is the pressure switch. Here's a photo:
Image
SurfLung
The Freedom and Simplicity of Vintage Equipment and
Vintage Diving Technique are Why I Got Back Into Diving.

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antique diver
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Re: Tornado 3000-4-3

Mon Dec 30, 2019 11:35 am

The interior wall of that filter tower (converted surplus hydraulic accumulator) looks pretty corroded! Please check that out carefully!

The material in separator might do a good job but need to keep it from jamming up in the inlet fitting. I think I would use some stainless mesh from a strainer like you have in the picture, and fit that to the bottom of the separator.
The older I get the better I was.

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SurfLung
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Re: Tornado 3000-4-3

Thu Jan 02, 2020 11:12 am

Quit Fooling Around?
- I crashed through a major hurdle when I tossed the original magnetic starter and bought an easily installed new one. This allowed me to turn the compressor ON and prove that the motor and the compressor are in good working order.
- Another break-thru was figuring how to wire a pressure switch.
- But now, I'm stuck trying to make the crappy old parts work... for nostalia purposes, really. The old moisture condenser, the old corroded filter, the old pressure switch, and the old over pressure safety valve. One by one each of these parts is revealing its weaknesses... And I'm wasting a lot of time and effort on them. Especially now that I'm so close to having the Tornado Kidde 3000 fully operational.
- So, I ordered one of those 2-Tube filter systems on Ebay for $231. Add a new pressure switch, new over pressure release, and either a back pressure regulator or PMV... Stay tuned...
SurfLung
The Freedom and Simplicity of Vintage Equipment and
Vintage Diving Technique are Why I Got Back Into Diving.

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SurfLung
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Re: Tornado 3000-4-3

Tue Jan 07, 2020 11:24 am

Clean up/Close up the Wiring...
- Here's the magnetic starter switch with the wiring all neatened up. There's not much room in the box so I kept the wires as short as possible and crimped on connector ends. I've left room for the pressure switch to be wired in as soon as I'm ready.
Image
Image
SurfLung
The Freedom and Simplicity of Vintage Equipment and
Vintage Diving Technique are Why I Got Back Into Diving.

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SurfLung
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Re: Tornado 3000-4-3

Thu Jan 09, 2020 3:32 pm

Testing the Pressure Switch and Over Pressure Valve.
- I hooked up a scuba tank to pressure gauge and the pressure switch. Turned on the air and watched the needle as the pressure rose. right at 2500 psi, the pressure switch will engage and turn off the compressor. This switch is "Normally Closed" (NC). So, when the pressure reaches its target, the switch opens, which turns off the compressor. For this test, I connected a voltmeter to the wires coming out of the pressure switch. And when the switch actuated, the voltmeter needle dropped. So, this test confirms the switch works and that it is set for 2500 PSI.
Image
- Next, I hooked up the OPV (Overpressure Valve) to a scuba tank in much the same way. I turned on the air and watched the needle climb. And sure enough, at 2800 psi, the OPV began to release pressure. So, this test confirms that the OPV works and that it is set for 2500 psi.
Image
- So, the original set up for the Tornado Kidde 3000 was to fill the fire house tanks up to 2500 psi and then shut off. And if it failed to shut off, there would be a back-up OPV to release pressure beyond 2800 psi. I think that since I'll be filling vintage steel tanks, I probably won't fill anything over 2500 psi either (2500 psi is 10% over on a 2250 Scuba tank). I will leave these set the way they are and incorporate them into my final plumbing.
SurfLung
The Freedom and Simplicity of Vintage Equipment and
Vintage Diving Technique are Why I Got Back Into Diving.

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