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Entry  Thu Dec 12 17:22:07 2013, Steve, Update, General, rack power supplies checked 8x
    Reply  Fri Dec 13 16:34:20 2013, Steve, Update, VAC, PS will be replaced next week hotPSvacRack.jpgfan1X8.jpg
       Reply  Fri Dec 20 20:04:01 2013, Steve, Update, VAC, power supply replaced with a short vent 4hrPumpdown.pngpumpdownAfterHickup.pngPSpumpdown.png
          Reply  Fri Dec 20 23:00:41 2013, Koji, Update, VAC, power supply replaced with a short vent 
             Reply  Sat Dec 21 10:53:35 2013, Steve, Update, VAC, power supply replaced with a short vent-pumpdown completed 20hrsVacNormal.png
          Reply  Fri Jan 3 11:18:41 2014, Steve, Summary, VAC, power supply replaced with a short vent rebootVENT.png
    Reply  Thu Feb 22 10:49:11 2018, Steve, Update, Electronics, rack power supplies checked 8x
Message ID: 9510     Entry time: Sat Dec 21 10:53:35 2013     In reply to: 9508
Author: Steve 
Type: Update 
Category: VAC 
Subject: power supply replaced with a short vent-pumpdown completed 

The recovery- pumpdown reached valve configuration  vacuum normal at 20 hours, cc1 7.7e-6 Torr

Lesson learned: turn all pumps off, close all valves before you reboot ! like you would prepare for AC power shut down.

 

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