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Message ID: 85     Entry time: Friday, January 29, 2016, 17:08
Author: Keith C Ng 
Category: Primary Beamlines 
Type: Maintenance 
Subject: 4VVR1 Removal 

Today:

Disconnected and removed 4VVR1 gate valve and removed from beamline.

- Pin drives removed and stored in bags near by

- Hook collar removed and stored in separate bags. The hook collar used at CM1 was marked with an "X".

- Indium rings also removed and stored in separate bags. Indium appeared to not stick on to the flange during removal on the tank side flange. A closer inspection will be needed at a more convenient date.

- Craning out the valve proved difficult as the shiv block was interfering with the motor lift. Lifting the valve on to the combination magnet, adjusting the sling length shorter and then final craning was the procedure used.

Cyclotron tank flange entrance at combination magnet has been covered with plastic bag and taped off. Valve was then transported to the north tunnel alcove for intermediate storage as per instructions from RPG.

Note that during cart transport, the valve tipped and fell off the cart. No visible damage could be seen on initial inspection.

 

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