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Message ID: 260     Entry time: Tue Oct 12 12:59:23 2021
Author: Stephen 
Type: How To 
Category: General 
Subject: Lista tool chest jammed, opened 

[Stephen, Dean]

Aaron's past experience at Cryo_Lab/2563 is familiar to other LIGO users of the Lista tool chests. Occaisionally the mechanism which keeps the remaining drawers closed while a single drawer is open can lock all drawers. Dean brought to my attention that the Downs 228 chest was apparently locked. The key was nowhere to be found. Here's how we solved the problem:

  1. I remembered Aaron's past experience and searched the elogs for "lista" until I found it.
  2. Dean and I tried to perform the maneuver described at Aaron's link, but we were using flimsy stock that didn't seem to allow us to get the needed leverage.
  3. I called the local Lista distributer (DMARK, 562.799.9010) and received an email including break-in instructions (Attachment 1, Attachment 2).
  4. To expand upon the attached instructions, here are a few points of emphasis:
  • Dean and I used a 1/4" x 1" x 36" aluminum strip to push straight forward on the C Channel.
  • A flashlight could be used to ensure alignment to the C Channel if feel wasn't enough.
  • Lifting a drawer was necessary to create a large enough gap (Attachment 3).
  • Once we were successfule we removed a drawer to show how we had pushed (Attachment 4).

The key was found in the upper drawer and placed atop the chest.

Attachment 1: Lockout.pdf  1.252 MB  Uploaded Tue Oct 12 14:06:07 2021  | Hide | Hide all
Attachment 2: Break_in_Instructions_Video.mov  5.483 MB  Uploaded Tue Oct 12 14:06:17 2021
Attachment 3: IMG_0170.JPG  2.809 MB  Uploaded Tue Oct 12 14:08:29 2021  | Hide | Hide all
Attachment 4: IMG_0169.JPG  2.484 MB  Uploaded Tue Oct 12 14:10:34 2021  | Hide | Hide all
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