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Sakharov
Joined: 16 Dec 2010
Posts: 33
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| Posted: Wed Dec 21, 2016 11:59 pm Post subject: Barco Cinemax glycol fungal contamination |
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Dear crt Gurus,
Newbie in need of some help.
I recently got a very nice Barco Cinemas nevertheless the glycol on the blue tube ie filled with fungus. I've removed the tube and purg3d the glycol. This LUG tube has like some sort of rubber glycol expantion chamber all arround being compressed by screw holded springs.
How should I proceed to solve the problem? Should I disassenble the chamber (how should I do it?) or just rinse it (with what? I live in Europe)?
Thank you for the help
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cmjohnson
Joined: 03 Apr 2006
Posts: 5180
Location: Buried under G90s
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| Posted: Thu Dec 22, 2016 12:26 am Post subject: |
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Rinse and flush with water, do it several times until you're sure that there's no trace of glycol left.
Next thorougly dry it. Use compressed air if you have it, to speed the process. Warm air from a hair dryer
would be fine.
Refill with a mixture of ethylene glycol and glycerine. Opinions vary as to the mix ratio but I know that on every
projector I've worked on, a 50/50 mixture worked fine. So did an 80/20 mixture. So anywhere in that range
should be OK.
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Thu Dec 22, 2016 3:01 pm Post subject: |
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I have seen this in ONE BArco 909 housing. I would cut the tube out and change housings completely, as I believe it was the bellows that caused the problem. THe one I had was a far lighter color than the normal gray/black ones.. if I remember it was whitish. You can try cleaning as CM says, but I would swap housings to be 100% sure. I've got spares if you need one.
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