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Re: NEON- vacuum pump rebuild

Tom,

I bought some pump oil from Mass Vac and found them to be easy to do
business with, but I never had them rebuild anything.  But the manner of
the rep left me with a great impression, at least I'll second the
recommendation to check them out...I think the guy I dealt with was
named Herb.

Bettina


> Ron-
> 
> For what it's worth and if you're considering having a pump rebuilt; I'd
> really recommend checking out an outfit in any way you can to verify the
> quality of their work.  I've had a bit of a nighmare going on after having
> a 1402 rebuilt.  The pump really sucks (no, no, really I mean 3-4 microns),
> but has some "mystery" problem with it that is causing *all* units to
> snake.  Something they did, I'd assume, is still outgassing after weeks of
> running (UGGH!), and causing this.  I've done everything I can to isolate
> the problem and I'm using a backup pump and not having the problem, so am
> pretty confident that it's something they did.
> 
> Next time, I will pay a little extra if I need to to be confident with the
> work.  If you read the recent article by Wayne S. in SOT, it may help you
> ask some questions of their "rebuilding" procedures.
> 
> I also have a local place, MassVac, that charges in the same ballpark that
> you're mentioning that I believe is very good (not the one I used, oops)
> and I think it's the one that Wayne took his to and discusses in the
> article.  If interested in their number, let me know.
> 
> Tom U.
> 
> >Has anybody had dealings with  Johnstone Associates  in Los Altos, CA?  They
> >have a web page at www.johnstone.com/index.shtml  and are selling rebuilt
> >vacuum pumps at a reasonable (I think) price. Like a Welch 1402 rebuilt
> >for $550
> >(pump only), they want $430 to rebuild yours and it is almost a wash with
> >shipping charges from Wisconsin just to buy one of the rebuilt ones. Welch
> >out of Chicago wants a min. of $495 to rebuild one and $1790 for a new one.
> >Thanks for an info...
> >Ron Anas
> >neonron@nconnect.net
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