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" |