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still can't achieve vacuum on Saturn 2000

http://www.chromforum.org/viewtopic.php?t=13312

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still can't achieve vacuum on Saturn 2000

Posted: Fri Jul 02, 2010 7:11 pm
by djletin
I replaced V-70 Turbomolecular pump on Varian Sturan 2000 as per service engineer recomendation but get exactly same outcome. Achieve no better then about 87% pump speed. Also replaced o-ring at transfer line and gasket around analyzer. Any suggestions?

Posted: Wed Jul 07, 2010 5:15 pm
by perfumer
hello djletin,

what is your forepump?

best regards,
stephan
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