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- Posts: 1108
- Joined: Wed Dec 22, 2010 10:17 pm
- Location: Chicago
This is a QC mass spec that I am not directly responsible for. Anyways I came by and it is a real mess. It is a 6890-5973. Anyways the foreline has been backstreaming oil all the way up to the outlet of the diff pump and foreline guage. Can I use MeCl2 to clean the tube and foreline guage?
Finally I noticed the vacuum was lousy. I opened the cover to find almost no diff pump oil. it was almost below the bottom of the window. I vented and took it apart and now that it is unhooked there looks to be a lot of fluid kind of 2 layers. a darker cream at the bottom up to the low mark and a whitish colloidal cream extending above the top of the hot mark. Am I seeing moisture or foreline oil contamination?
Anyways game plan is new foreline pump, rise everything with MeCl2, new Santovac for diff pump and put it back together. Does that sound good?