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Message ID: 1859     Entry time: Friday, January 18, 2019, 10:26
Author: Isaac Earle 
Category: North Hot-Cell 
Type: Development 
Module:  
Target/Number:  
Subject: NHC sealing improvements and repeat of RH test for LED lights 

The following NHC development work was completed under WP I2019-01-09-4:

  • Location of RH feature on operator level LED lighting updated to match IRH1800 Rev B design
  • Remote Handling test of the LED fixtures was repeated using a 9' pole with hook attachment through the manipulator slave hatch from the Target Hall: both LED fixtures were removed and reinstalled successfully with relative ease
  • Tool port seal replaced to address an audible air leak: the 1/4" foam seal was removed and replaced with adhesive backed 5/8" wide hollow foam rubber seal (McMaster Carr PN: 93085K81). Prior to the change DPG4 was at 0.63"wc, after the change wit was 0.73"wc with all system variables constant.
  • NHC manipulator access block seal was replaced, likewise to address an audible air leak: the 1/4" foam seal was removed and replaced with adhesive backed 1/2" thick BunA-N rubber strip (McMaster Carr PN: 9023K85).  DPG4 was at 0.94"wc prior to the change, and 1.07"wc after with all system variables constant
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