[RASMB] Vacuum System

[Walter Stafford]

You should check (clean and re-grease) the "O" ring around the top of the chamber and make sure that the encrusted, hardened vacuum grease on the underside of the sliding top is also cleaned off. I use acetone. Could be somewhere else, but I would start there.


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Walter F. Stafford, Ph.D.
Senior Scientist and
Director Analytical Ultracentrfugation Research Laboratory
Boston Biomedical Research Institute
64 Grove Street
Watertown, MA 02472
617-658-7808
skype: w.stafford3
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"Be kind, for everyone you meet is fighting a hard battle."  -Plato
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On Jan 19, 2012, at 09:55, Peter Edward Prevelige Jr wrote:

> Hi All –
>  
> Our XL-A shut down 20 hrs into an equilibrium run because it apparently lost vacuum.  It is clearly pumping some because while the reading never gets below 1000 microns we can hear inrush air when we release it.  Is there any useful troubleshooting I can do while waiting for the service engineer?
>  
> Thanks
>  
> Peter
>  
>  
> Peter E. Prevelige Jr.
> Professor
> Dept. of Microbiology, BBRB 416/6
> Univ. of Alabama @ Birmingham
> 845 19th St. South
> Birmingham AL. 35294-2170
> Phone 205 975-5327
> FAX 205 975-5479
> prevelig at uab.edu
> http://www.microbio.uab.edu/faculty/prevelige/prevelige-p.htm
>  
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