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Message ID: 92     Entry time: Monday, February 06, 2017, 20:32
Author: Jason Kapalka 
Category: Elevation Jack 
Type: Maintenance 
Subject: 2017 Cyclotron Elevating System Maintenance  
The Cyclotron Elevating System planned maintenance work this year was performed on Jack Station #3, #8, #9, and #10.

Start date: January 10, 2017
End date: January 23, 2017

Lockout procedure
 - Performed electrical lockout of Cyclotron Elevating System

Jack Station #10
 - Disconnected power from electric motor
 - Noted initial station counter reading and yoke gap
 - Removed limit switch
 - Removed complete spare set #14 from station (2x Duff-Norton screw jacks, 2x Highfield gear reducers, and 1x electric 
motor)
 - Installed complete original set #10 onto station (2x screw jacks, 2x Highfield gear reducers, and 1x electric motor)
 - Installed limit switch
 - Set yoke gap and station counter reading according to initial values
 - Reconnected power to electric motor


Jack Station #9
 - Noted initial station counter reading and yoke gap
 - Removed 2x screw jacks from original set #9 for early inspection
 - Lifted 2x screw jacks to RH active shop
 - Broke-out worm-screw from screw jack #9R
 - Inspected worm-screw and worm-gear surfaces: observed discoloured grease, similar to that found while servicing this 
screw 
jack in 
September 
2015
 - Decided not to reinstall screw jacks from original set #9 so that they can be serviced again after shutdown
 - Installed 2x screw jacks from spare set #14
 - Set yoke gap and station counter reading according to initial values

Jack Station #8
 - Disconnected power from electric motor
 - Noted initial station counter reading and yoke gap
 - Removed complete original set #8 from station (2x screw jacks, 2x Highfield gear reducers, and 1x electric motor)
 - Installed complete spare set #13 onto station (2x Duff-Norton screw jacks, 2x Highfield gear reducers, and 1x electric 
motor)
 - Set yoke gap and station counter reading according to initial values
 - Reconnected power to electric motor
 - Lifted complete original set #8 to RH active shop for inspection and servicing
 - Inspected and serviced upper bearing: ok

Jack Station #3
 - Unable to remove screw jacks from original set #3 for inspection and servicing since there no remaining spare screw 
jacks 
available
 - Decided to postpone removal of complete original set #3 until January 2018
 - Inspected and serviced upper bearing: ok

Pre lid-up preparations
 - Tested Jack Station #8 and #10 to verify correct motor phasing
 - Indexed all jack stations to 0.25"
Attachment 1: Cyclotron_Elevation_Maintenance_Rotation_Record_20170829.xlsx  13 kB  Uploaded Monday, January 15, 2018, 14:30
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