From jenwang at snf.stanford.edu  Mon Feb  9 16:59:42 2004
From: jenwang at snf.stanford.edu (jenwang at snf.stanford.edu)
Date: Mon, 9 Feb 2004 16:59:42 -0800
Subject: Shutdown cpd 2004-02-09 16:59:42: The flat ring is bent
Message-ID: <mailman.24.1356281277.3549.cpd-pcs@snf.stanford.edu>

The flat ring for sealing the chamber is bent and distorted.  Gas is leaking wildly at the fill step.      



From uli at snf.stanford.edu  Mon Feb  9 17:31:59 2004
From: uli at snf.stanford.edu (uli at snf.stanford.edu)
Date: Mon, 9 Feb 2004 17:31:59 -0800
Subject: Shutdown cpd 2004-02-09 16:59:42: The flat ring is bent
Message-ID: <mailman.25.1356281277.3549.cpd-pcs@snf.stanford.edu>

replaced backing ring. I tried to replace the o-ring too, but all three replacement o-rings are too large! Jenwang is going to run a test run using the old o-ring. 



From jenwang at snf.stanford.edu  Mon Feb  9 18:05:47 2004
From: jenwang at snf.stanford.edu (jenwang at snf.stanford.edu)
Date: Mon, 9 Feb 2004 18:05:47 -0800
Subject: Shutdown cpd 2004-02-09 18:05:47: The oring has to be replaced
Message-ID: <mailman.26.1356281277.3549.cpd-pcs@snf.stanford.edu>

The leakage still happens after the back ring is replaced.  A new O ring is needed.



From uli at snf.stanford.edu  Tue Feb 10 13:23:21 2004
From: uli at snf.stanford.edu (uli at snf.stanford.edu)
Date: Tue, 10 Feb 2004 13:23:21 -0800
Subject: Shutdown cpd 2004-02-09 18:05:47: The oring has to be replaced
Message-ID: <mailman.27.1356281277.3549.cpd-pcs@snf.stanford.edu>

o-ring has been replaced, I tested the cpd, ready to use